diff options
author | Tony Luck <tony.luck@intel.com> | 2008-10-17 16:51:28 -0400 |
---|---|---|
committer | Tony Luck <tony.luck@intel.com> | 2008-10-17 16:51:28 -0400 |
commit | 22ca532a4d137545244fdff0b687325fd4e13eae (patch) | |
tree | 459f5116344c71d13d860f4fd9f0c2c477df268a /arch | |
parent | 9224652cc76417bfe779bcdb1243cf0b083e3eee (diff) | |
parent | f8d1f99f3958c46cdc983743d75d0b31b9accb80 (diff) |
Pull pv_ops-xen into release branch
Diffstat (limited to 'arch')
49 files changed, 4448 insertions, 11 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 892f296f99b6..239ad6b1c74f 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig | |||
@@ -109,6 +109,33 @@ config AUDIT_ARCH | |||
109 | bool | 109 | bool |
110 | default y | 110 | default y |
111 | 111 | ||
112 | menuconfig PARAVIRT_GUEST | ||
113 | bool "Paravirtualized guest support" | ||
114 | help | ||
115 | Say Y here to get to see options related to running Linux under | ||
116 | various hypervisors. This option alone does not add any kernel code. | ||
117 | |||
118 | If you say N, all options in this submenu will be skipped and disabled. | ||
119 | |||
120 | if PARAVIRT_GUEST | ||
121 | |||
122 | config PARAVIRT | ||
123 | bool "Enable paravirtualization code" | ||
124 | depends on PARAVIRT_GUEST | ||
125 | default y | ||
126 | bool | ||
127 | default y | ||
128 | help | ||
129 | This changes the kernel so it can modify itself when it is run | ||
130 | under a hypervisor, potentially improving performance significantly | ||
131 | over full virtualization. However, when run without a hypervisor | ||
132 | the kernel is theoretically slower and slightly larger. | ||
133 | |||
134 | |||
135 | source "arch/ia64/xen/Kconfig" | ||
136 | |||
137 | endif | ||
138 | |||
112 | choice | 139 | choice |
113 | prompt "System type" | 140 | prompt "System type" |
114 | default IA64_GENERIC | 141 | default IA64_GENERIC |
@@ -130,6 +157,7 @@ config IA64_GENERIC | |||
130 | SGI-SN2 For SGI Altix systems | 157 | SGI-SN2 For SGI Altix systems |
131 | SGI-UV For SGI UV systems | 158 | SGI-UV For SGI UV systems |
132 | Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/> | 159 | Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/> |
160 | Xen-domU For xen domU system | ||
133 | 161 | ||
134 | If you don't know what to do, choose "generic". | 162 | If you don't know what to do, choose "generic". |
135 | 163 | ||
@@ -180,6 +208,10 @@ config IA64_HP_SIM | |||
180 | bool "Ski-simulator" | 208 | bool "Ski-simulator" |
181 | select SWIOTLB | 209 | select SWIOTLB |
182 | 210 | ||
211 | config IA64_XEN_GUEST | ||
212 | bool "Xen guest" | ||
213 | depends on XEN | ||
214 | |||
183 | endchoice | 215 | endchoice |
184 | 216 | ||
185 | choice | 217 | choice |
diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile index 905d25b13d5a..40242501bcdd 100644 --- a/arch/ia64/Makefile +++ b/arch/ia64/Makefile | |||
@@ -56,9 +56,11 @@ core-$(CONFIG_IA64_DIG) += arch/ia64/dig/ | |||
56 | core-$(CONFIG_IA64_GENERIC) += arch/ia64/dig/ | 56 | core-$(CONFIG_IA64_GENERIC) += arch/ia64/dig/ |
57 | core-$(CONFIG_IA64_HP_ZX1) += arch/ia64/dig/ | 57 | core-$(CONFIG_IA64_HP_ZX1) += arch/ia64/dig/ |
58 | core-$(CONFIG_IA64_HP_ZX1_SWIOTLB) += arch/ia64/dig/ | 58 | core-$(CONFIG_IA64_HP_ZX1_SWIOTLB) += arch/ia64/dig/ |
59 | core-$(CONFIG_IA64_XEN_GUEST) += arch/ia64/dig/ | ||
59 | core-$(CONFIG_IA64_SGI_SN2) += arch/ia64/sn/ | 60 | core-$(CONFIG_IA64_SGI_SN2) += arch/ia64/sn/ |
60 | core-$(CONFIG_IA64_SGI_UV) += arch/ia64/uv/ | 61 | core-$(CONFIG_IA64_SGI_UV) += arch/ia64/uv/ |
61 | core-$(CONFIG_KVM) += arch/ia64/kvm/ | 62 | core-$(CONFIG_KVM) += arch/ia64/kvm/ |
63 | core-$(CONFIG_XEN) += arch/ia64/xen/ | ||
62 | 64 | ||
63 | drivers-$(CONFIG_PCI) += arch/ia64/pci/ | 65 | drivers-$(CONFIG_PCI) += arch/ia64/pci/ |
64 | drivers-$(CONFIG_IA64_HP_SIM) += arch/ia64/hp/sim/ | 66 | drivers-$(CONFIG_IA64_HP_SIM) += arch/ia64/hp/sim/ |
diff --git a/arch/ia64/include/asm/break.h b/arch/ia64/include/asm/break.h index f03402039896..e90c40ec9edf 100644 --- a/arch/ia64/include/asm/break.h +++ b/arch/ia64/include/asm/break.h | |||
@@ -20,4 +20,13 @@ | |||
20 | */ | 20 | */ |
21 | #define __IA64_BREAK_SYSCALL 0x100000 | 21 | #define __IA64_BREAK_SYSCALL 0x100000 |
22 | 22 | ||
23 | /* | ||
24 | * Xen specific break numbers: | ||
25 | */ | ||
26 | #define __IA64_XEN_HYPERCALL 0x1000 | ||
27 | /* [__IA64_XEN_HYPERPRIVOP_START, __IA64_XEN_HYPERPRIVOP_MAX] is used | ||
28 | for xen hyperprivops */ | ||
29 | #define __IA64_XEN_HYPERPRIVOP_START 0x1 | ||
30 | #define __IA64_XEN_HYPERPRIVOP_MAX 0x1a | ||
31 | |||
23 | #endif /* _ASM_IA64_BREAK_H */ | 32 | #endif /* _ASM_IA64_BREAK_H */ |
diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h index 2b850ccafef5..de99cb2799cf 100644 --- a/arch/ia64/include/asm/machvec.h +++ b/arch/ia64/include/asm/machvec.h | |||
@@ -128,6 +128,8 @@ extern void machvec_tlb_migrate_finish (struct mm_struct *); | |||
128 | # include <asm/machvec_sn2.h> | 128 | # include <asm/machvec_sn2.h> |
129 | # elif defined (CONFIG_IA64_SGI_UV) | 129 | # elif defined (CONFIG_IA64_SGI_UV) |
130 | # include <asm/machvec_uv.h> | 130 | # include <asm/machvec_uv.h> |
131 | # elif defined (CONFIG_IA64_XEN_GUEST) | ||
132 | # include <asm/machvec_xen.h> | ||
131 | # elif defined (CONFIG_IA64_GENERIC) | 133 | # elif defined (CONFIG_IA64_GENERIC) |
132 | 134 | ||
133 | # ifdef MACHVEC_PLATFORM_HEADER | 135 | # ifdef MACHVEC_PLATFORM_HEADER |
diff --git a/arch/ia64/include/asm/machvec_xen.h b/arch/ia64/include/asm/machvec_xen.h new file mode 100644 index 000000000000..55f9228056cd --- /dev/null +++ b/arch/ia64/include/asm/machvec_xen.h | |||
@@ -0,0 +1,22 @@ | |||
1 | #ifndef _ASM_IA64_MACHVEC_XEN_h | ||
2 | #define _ASM_IA64_MACHVEC_XEN_h | ||
3 | |||
4 | extern ia64_mv_setup_t dig_setup; | ||
5 | extern ia64_mv_cpu_init_t xen_cpu_init; | ||
6 | extern ia64_mv_irq_init_t xen_irq_init; | ||
7 | extern ia64_mv_send_ipi_t xen_platform_send_ipi; | ||
8 | |||
9 | /* | ||
10 | * This stuff has dual use! | ||
11 | * | ||
12 | * For a generic kernel, the macros are used to initialize the | ||
13 | * platform's machvec structure. When compiling a non-generic kernel, | ||
14 | * the macros are used directly. | ||
15 | */ | ||
16 | #define platform_name "xen" | ||
17 | #define platform_setup dig_setup | ||
18 | #define platform_cpu_init xen_cpu_init | ||
19 | #define platform_irq_init xen_irq_init | ||
20 | #define platform_send_ipi xen_platform_send_ipi | ||
21 | |||
22 | #endif /* _ASM_IA64_MACHVEC_XEN_h */ | ||
diff --git a/arch/ia64/include/asm/meminit.h b/arch/ia64/include/asm/meminit.h index 7245a5781594..6bc96ee54327 100644 --- a/arch/ia64/include/asm/meminit.h +++ b/arch/ia64/include/asm/meminit.h | |||
@@ -18,10 +18,11 @@ | |||
18 | * - crash dumping code reserved region | 18 | * - crash dumping code reserved region |
19 | * - Kernel memory map built from EFI memory map | 19 | * - Kernel memory map built from EFI memory map |
20 | * - ELF core header | 20 | * - ELF core header |
21 | * - xen start info if CONFIG_XEN | ||
21 | * | 22 | * |
22 | * More could be added if necessary | 23 | * More could be added if necessary |
23 | */ | 24 | */ |
24 | #define IA64_MAX_RSVD_REGIONS 8 | 25 | #define IA64_MAX_RSVD_REGIONS 9 |
25 | 26 | ||
26 | struct rsvd_region { | 27 | struct rsvd_region { |
27 | unsigned long start; /* virtual address of beginning of element */ | 28 | unsigned long start; /* virtual address of beginning of element */ |
diff --git a/arch/ia64/include/asm/native/inst.h b/arch/ia64/include/asm/native/inst.h index c8efbf7b849e..0a1026cca4fa 100644 --- a/arch/ia64/include/asm/native/inst.h +++ b/arch/ia64/include/asm/native/inst.h | |||
@@ -36,8 +36,13 @@ | |||
36 | ;; \ | 36 | ;; \ |
37 | movl clob = PARAVIRT_POISON; \ | 37 | movl clob = PARAVIRT_POISON; \ |
38 | ;; | 38 | ;; |
39 | # define CLOBBER_PRED(pred_clob) \ | ||
40 | ;; \ | ||
41 | cmp.eq pred_clob, p0 = r0, r0 \ | ||
42 | ;; | ||
39 | #else | 43 | #else |
40 | # define CLOBBER(clob) /* nothing */ | 44 | # define CLOBBER(clob) /* nothing */ |
45 | # define CLOBBER_PRED(pred_clob) /* nothing */ | ||
41 | #endif | 46 | #endif |
42 | 47 | ||
43 | #define MOV_FROM_IFA(reg) \ | 48 | #define MOV_FROM_IFA(reg) \ |
@@ -136,7 +141,8 @@ | |||
136 | 141 | ||
137 | #define SSM_PSR_I(pred, pred_clob, clob) \ | 142 | #define SSM_PSR_I(pred, pred_clob, clob) \ |
138 | (pred) ssm psr.i \ | 143 | (pred) ssm psr.i \ |
139 | CLOBBER(clob) | 144 | CLOBBER(clob) \ |
145 | CLOBBER_PRED(pred_clob) | ||
140 | 146 | ||
141 | #define RSM_PSR_I(pred, clob0, clob1) \ | 147 | #define RSM_PSR_I(pred, clob0, clob1) \ |
142 | (pred) rsm psr.i \ | 148 | (pred) rsm psr.i \ |
diff --git a/arch/ia64/include/asm/native/pvchk_inst.h b/arch/ia64/include/asm/native/pvchk_inst.h new file mode 100644 index 000000000000..b8e6eb1090d7 --- /dev/null +++ b/arch/ia64/include/asm/native/pvchk_inst.h | |||
@@ -0,0 +1,263 @@ | |||
1 | #ifndef _ASM_NATIVE_PVCHK_INST_H | ||
2 | #define _ASM_NATIVE_PVCHK_INST_H | ||
3 | |||
4 | /****************************************************************************** | ||
5 | * arch/ia64/include/asm/native/pvchk_inst.h | ||
6 | * Checker for paravirtualizations of privileged operations. | ||
7 | * | ||
8 | * Copyright (C) 2005 Hewlett-Packard Co | ||
9 | * Dan Magenheimer <dan.magenheimer@hp.com> | ||
10 | * | ||
11 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
12 | * VA Linux Systems Japan K.K. | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or modify | ||
15 | * it under the terms of the GNU General Public License as published by | ||
16 | * the Free Software Foundation; either version 2 of the License, or | ||
17 | * (at your option) any later version. | ||
18 | * | ||
19 | * This program is distributed in the hope that it will be useful, | ||
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
22 | * GNU General Public License for more details. | ||
23 | * | ||
24 | * You should have received a copy of the GNU General Public License | ||
25 | * along with this program; if not, write to the Free Software | ||
26 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
27 | * | ||
28 | */ | ||
29 | |||
30 | /********************************************** | ||
31 | * Instructions paravirtualized for correctness | ||
32 | **********************************************/ | ||
33 | |||
34 | /* "fc" and "thash" are privilege-sensitive instructions, meaning they | ||
35 | * may have different semantics depending on whether they are executed | ||
36 | * at PL0 vs PL!=0. When paravirtualized, these instructions mustn't | ||
37 | * be allowed to execute directly, lest incorrect semantics result. | ||
38 | */ | ||
39 | |||
40 | #define fc .error "fc should not be used directly." | ||
41 | #define thash .error "thash should not be used directly." | ||
42 | |||
43 | /* Note that "ttag" and "cover" are also privilege-sensitive; "ttag" | ||
44 | * is not currently used (though it may be in a long-format VHPT system!) | ||
45 | * and the semantics of cover only change if psr.ic is off which is very | ||
46 | * rare (and currently non-existent outside of assembly code | ||
47 | */ | ||
48 | #define ttag .error "ttag should not be used directly." | ||
49 | #define cover .error "cover should not be used directly." | ||
50 | |||
51 | /* There are also privilege-sensitive registers. These registers are | ||
52 | * readable at any privilege level but only writable at PL0. | ||
53 | */ | ||
54 | #define cpuid .error "cpuid should not be used directly." | ||
55 | #define pmd .error "pmd should not be used directly." | ||
56 | |||
57 | /* | ||
58 | * mov ar.eflag = | ||
59 | * mov = ar.eflag | ||
60 | */ | ||
61 | |||
62 | /********************************************** | ||
63 | * Instructions paravirtualized for performance | ||
64 | **********************************************/ | ||
65 | /* | ||
66 | * Those instructions include '.' which can't be handled by cpp. | ||
67 | * or can't be handled by cpp easily. | ||
68 | * They are handled by sed instead of cpp. | ||
69 | */ | ||
70 | |||
71 | /* for .S | ||
72 | * itc.i | ||
73 | * itc.d | ||
74 | * | ||
75 | * bsw.0 | ||
76 | * bsw.1 | ||
77 | * | ||
78 | * ssm psr.ic | PSR_DEFAULT_BITS | ||
79 | * ssm psr.ic | ||
80 | * rsm psr.ic | ||
81 | * ssm psr.i | ||
82 | * rsm psr.i | ||
83 | * rsm psr.i | psr.ic | ||
84 | * rsm psr.dt | ||
85 | * ssm psr.dt | ||
86 | * | ||
87 | * mov = cr.ifa | ||
88 | * mov = cr.itir | ||
89 | * mov = cr.isr | ||
90 | * mov = cr.iha | ||
91 | * mov = cr.ipsr | ||
92 | * mov = cr.iim | ||
93 | * mov = cr.iip | ||
94 | * mov = cr.ivr | ||
95 | * mov = psr | ||
96 | * | ||
97 | * mov cr.ifa = | ||
98 | * mov cr.itir = | ||
99 | * mov cr.iha = | ||
100 | * mov cr.ipsr = | ||
101 | * mov cr.ifs = | ||
102 | * mov cr.iip = | ||
103 | * mov cr.kr = | ||
104 | */ | ||
105 | |||
106 | /* for intrinsics | ||
107 | * ssm psr.i | ||
108 | * rsm psr.i | ||
109 | * mov = psr | ||
110 | * mov = ivr | ||
111 | * mov = tpr | ||
112 | * mov cr.itm = | ||
113 | * mov eoi = | ||
114 | * mov rr[] = | ||
115 | * mov = rr[] | ||
116 | * mov = kr | ||
117 | * mov kr = | ||
118 | * ptc.ga | ||
119 | */ | ||
120 | |||
121 | /************************************************************* | ||
122 | * define paravirtualized instrcution macros as nop to ingore. | ||
123 | * and check whether arguments are appropriate. | ||
124 | *************************************************************/ | ||
125 | |||
126 | /* check whether reg is a regular register */ | ||
127 | .macro is_rreg_in reg | ||
128 | .ifc "\reg", "r0" | ||
129 | nop 0 | ||
130 | .exitm | ||
131 | .endif | ||
132 | ;; | ||
133 | mov \reg = r0 | ||
134 | ;; | ||
135 | .endm | ||
136 | #define IS_RREG_IN(reg) is_rreg_in reg ; | ||
137 | |||
138 | #define IS_RREG_OUT(reg) \ | ||
139 | ;; \ | ||
140 | mov reg = r0 \ | ||
141 | ;; | ||
142 | |||
143 | #define IS_RREG_CLOB(reg) IS_RREG_OUT(reg) | ||
144 | |||
145 | /* check whether pred is a predicate register */ | ||
146 | #define IS_PRED_IN(pred) \ | ||
147 | ;; \ | ||
148 | (pred) nop 0 \ | ||
149 | ;; | ||
150 | |||
151 | #define IS_PRED_OUT(pred) \ | ||
152 | ;; \ | ||
153 | cmp.eq pred, p0 = r0, r0 \ | ||
154 | ;; | ||
155 | |||
156 | #define IS_PRED_CLOB(pred) IS_PRED_OUT(pred) | ||
157 | |||
158 | |||
159 | #define DO_SAVE_MIN(__COVER, SAVE_IFS, EXTRA, WORKAROUND) \ | ||
160 | nop 0 | ||
161 | #define MOV_FROM_IFA(reg) \ | ||
162 | IS_RREG_OUT(reg) | ||
163 | #define MOV_FROM_ITIR(reg) \ | ||
164 | IS_RREG_OUT(reg) | ||
165 | #define MOV_FROM_ISR(reg) \ | ||
166 | IS_RREG_OUT(reg) | ||
167 | #define MOV_FROM_IHA(reg) \ | ||
168 | IS_RREG_OUT(reg) | ||
169 | #define MOV_FROM_IPSR(pred, reg) \ | ||
170 | IS_PRED_IN(pred) \ | ||
171 | IS_RREG_OUT(reg) | ||
172 | #define MOV_FROM_IIM(reg) \ | ||
173 | IS_RREG_OUT(reg) | ||
174 | #define MOV_FROM_IIP(reg) \ | ||
175 | IS_RREG_OUT(reg) | ||
176 | #define MOV_FROM_IVR(reg, clob) \ | ||
177 | IS_RREG_OUT(reg) \ | ||
178 | IS_RREG_CLOB(clob) | ||
179 | #define MOV_FROM_PSR(pred, reg, clob) \ | ||
180 | IS_PRED_IN(pred) \ | ||
181 | IS_RREG_OUT(reg) \ | ||
182 | IS_RREG_CLOB(clob) | ||
183 | #define MOV_TO_IFA(reg, clob) \ | ||
184 | IS_RREG_IN(reg) \ | ||
185 | IS_RREG_CLOB(clob) | ||
186 | #define MOV_TO_ITIR(pred, reg, clob) \ | ||
187 | IS_PRED_IN(pred) \ | ||
188 | IS_RREG_IN(reg) \ | ||
189 | IS_RREG_CLOB(clob) | ||
190 | #define MOV_TO_IHA(pred, reg, clob) \ | ||
191 | IS_PRED_IN(pred) \ | ||
192 | IS_RREG_IN(reg) \ | ||
193 | IS_RREG_CLOB(clob) | ||
194 | #define MOV_TO_IPSR(pred, reg, clob) \ | ||
195 | IS_PRED_IN(pred) \ | ||
196 | IS_RREG_IN(reg) \ | ||
197 | IS_RREG_CLOB(clob) | ||
198 | #define MOV_TO_IFS(pred, reg, clob) \ | ||
199 | IS_PRED_IN(pred) \ | ||
200 | IS_RREG_IN(reg) \ | ||
201 | IS_RREG_CLOB(clob) | ||
202 | #define MOV_TO_IIP(reg, clob) \ | ||
203 | IS_RREG_IN(reg) \ | ||
204 | IS_RREG_CLOB(clob) | ||
205 | #define MOV_TO_KR(kr, reg, clob0, clob1) \ | ||
206 | IS_RREG_IN(reg) \ | ||
207 | IS_RREG_CLOB(clob0) \ | ||
208 | IS_RREG_CLOB(clob1) | ||
209 | #define ITC_I(pred, reg, clob) \ | ||
210 | IS_PRED_IN(pred) \ | ||
211 | IS_RREG_IN(reg) \ | ||
212 | IS_RREG_CLOB(clob) | ||
213 | #define ITC_D(pred, reg, clob) \ | ||
214 | IS_PRED_IN(pred) \ | ||
215 | IS_RREG_IN(reg) \ | ||
216 | IS_RREG_CLOB(clob) | ||
217 | #define ITC_I_AND_D(pred_i, pred_d, reg, clob) \ | ||
218 | IS_PRED_IN(pred_i) \ | ||
219 | IS_PRED_IN(pred_d) \ | ||
220 | IS_RREG_IN(reg) \ | ||
221 | IS_RREG_CLOB(clob) | ||
222 | #define THASH(pred, reg0, reg1, clob) \ | ||
223 | IS_PRED_IN(pred) \ | ||
224 | IS_RREG_OUT(reg0) \ | ||
225 | IS_RREG_IN(reg1) \ | ||
226 | IS_RREG_CLOB(clob) | ||
227 | #define SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(clob0, clob1) \ | ||
228 | IS_RREG_CLOB(clob0) \ | ||
229 | IS_RREG_CLOB(clob1) | ||
230 | #define SSM_PSR_IC_AND_SRLZ_D(clob0, clob1) \ | ||
231 | IS_RREG_CLOB(clob0) \ | ||
232 | IS_RREG_CLOB(clob1) | ||
233 | #define RSM_PSR_IC(clob) \ | ||
234 | IS_RREG_CLOB(clob) | ||
235 | #define SSM_PSR_I(pred, pred_clob, clob) \ | ||
236 | IS_PRED_IN(pred) \ | ||
237 | IS_PRED_CLOB(pred_clob) \ | ||
238 | IS_RREG_CLOB(clob) | ||
239 | #define RSM_PSR_I(pred, clob0, clob1) \ | ||
240 | IS_PRED_IN(pred) \ | ||
241 | IS_RREG_CLOB(clob0) \ | ||
242 | IS_RREG_CLOB(clob1) | ||
243 | #define RSM_PSR_I_IC(clob0, clob1, clob2) \ | ||
244 | IS_RREG_CLOB(clob0) \ | ||
245 | IS_RREG_CLOB(clob1) \ | ||
246 | IS_RREG_CLOB(clob2) | ||
247 | #define RSM_PSR_DT \ | ||
248 | nop 0 | ||
249 | #define SSM_PSR_DT_AND_SRLZ_I \ | ||
250 | nop 0 | ||
251 | #define BSW_0(clob0, clob1, clob2) \ | ||
252 | IS_RREG_CLOB(clob0) \ | ||
253 | IS_RREG_CLOB(clob1) \ | ||
254 | IS_RREG_CLOB(clob2) | ||
255 | #define BSW_1(clob0, clob1) \ | ||
256 | IS_RREG_CLOB(clob0) \ | ||
257 | IS_RREG_CLOB(clob1) | ||
258 | #define COVER \ | ||
259 | nop 0 | ||
260 | #define RFI \ | ||
261 | br.ret.sptk.many rp /* defining nop causes dependency error */ | ||
262 | |||
263 | #endif /* _ASM_NATIVE_PVCHK_INST_H */ | ||
diff --git a/arch/ia64/include/asm/paravirt.h b/arch/ia64/include/asm/paravirt.h index 660cab044834..2bf3636473fe 100644 --- a/arch/ia64/include/asm/paravirt.h +++ b/arch/ia64/include/asm/paravirt.h | |||
@@ -117,7 +117,7 @@ static inline void paravirt_post_smp_prepare_boot_cpu(void) | |||
117 | struct pv_iosapic_ops { | 117 | struct pv_iosapic_ops { |
118 | void (*pcat_compat_init)(void); | 118 | void (*pcat_compat_init)(void); |
119 | 119 | ||
120 | struct irq_chip *(*get_irq_chip)(unsigned long trigger); | 120 | struct irq_chip *(*__get_irq_chip)(unsigned long trigger); |
121 | 121 | ||
122 | unsigned int (*__read)(char __iomem *iosapic, unsigned int reg); | 122 | unsigned int (*__read)(char __iomem *iosapic, unsigned int reg); |
123 | void (*__write)(char __iomem *iosapic, unsigned int reg, u32 val); | 123 | void (*__write)(char __iomem *iosapic, unsigned int reg, u32 val); |
@@ -135,7 +135,7 @@ iosapic_pcat_compat_init(void) | |||
135 | static inline struct irq_chip* | 135 | static inline struct irq_chip* |
136 | iosapic_get_irq_chip(unsigned long trigger) | 136 | iosapic_get_irq_chip(unsigned long trigger) |
137 | { | 137 | { |
138 | return pv_iosapic_ops.get_irq_chip(trigger); | 138 | return pv_iosapic_ops.__get_irq_chip(trigger); |
139 | } | 139 | } |
140 | 140 | ||
141 | static inline unsigned int | 141 | static inline unsigned int |
diff --git a/arch/ia64/include/asm/pvclock-abi.h b/arch/ia64/include/asm/pvclock-abi.h new file mode 100644 index 000000000000..44ef9ef8f5b3 --- /dev/null +++ b/arch/ia64/include/asm/pvclock-abi.h | |||
@@ -0,0 +1,48 @@ | |||
1 | /* | ||
2 | * same structure to x86's | ||
3 | * Hopefully asm-x86/pvclock-abi.h would be moved to somewhere more generic. | ||
4 | * For now, define same duplicated definitions. | ||
5 | */ | ||
6 | |||
7 | #ifndef _ASM_IA64__PVCLOCK_ABI_H | ||
8 | #define _ASM_IA64__PVCLOCK_ABI_H | ||
9 | #ifndef __ASSEMBLY__ | ||
10 | |||
11 | /* | ||
12 | * These structs MUST NOT be changed. | ||
13 | * They are the ABI between hypervisor and guest OS. | ||
14 | * Both Xen and KVM are using this. | ||
15 | * | ||
16 | * pvclock_vcpu_time_info holds the system time and the tsc timestamp | ||
17 | * of the last update. So the guest can use the tsc delta to get a | ||
18 | * more precise system time. There is one per virtual cpu. | ||
19 | * | ||
20 | * pvclock_wall_clock references the point in time when the system | ||
21 | * time was zero (usually boot time), thus the guest calculates the | ||
22 | * current wall clock by adding the system time. | ||
23 | * | ||
24 | * Protocol for the "version" fields is: hypervisor raises it (making | ||
25 | * it uneven) before it starts updating the fields and raises it again | ||
26 | * (making it even) when it is done. Thus the guest can make sure the | ||
27 | * time values it got are consistent by checking the version before | ||
28 | * and after reading them. | ||
29 | */ | ||
30 | |||
31 | struct pvclock_vcpu_time_info { | ||
32 | u32 version; | ||
33 | u32 pad0; | ||
34 | u64 tsc_timestamp; | ||
35 | u64 system_time; | ||
36 | u32 tsc_to_system_mul; | ||
37 | s8 tsc_shift; | ||
38 | u8 pad[3]; | ||
39 | } __attribute__((__packed__)); /* 32 bytes */ | ||
40 | |||
41 | struct pvclock_wall_clock { | ||
42 | u32 version; | ||
43 | u32 sec; | ||
44 | u32 nsec; | ||
45 | } __attribute__((__packed__)); | ||
46 | |||
47 | #endif /* __ASSEMBLY__ */ | ||
48 | #endif /* _ASM_IA64__PVCLOCK_ABI_H */ | ||
diff --git a/arch/ia64/include/asm/sync_bitops.h b/arch/ia64/include/asm/sync_bitops.h new file mode 100644 index 000000000000..593c12eeb270 --- /dev/null +++ b/arch/ia64/include/asm/sync_bitops.h | |||
@@ -0,0 +1,51 @@ | |||
1 | #ifndef _ASM_IA64_SYNC_BITOPS_H | ||
2 | #define _ASM_IA64_SYNC_BITOPS_H | ||
3 | |||
4 | /* | ||
5 | * Copyright (C) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
6 | * | ||
7 | * Based on synch_bitops.h which Dan Magenhaimer wrote. | ||
8 | * | ||
9 | * bit operations which provide guaranteed strong synchronisation | ||
10 | * when communicating with Xen or other guest OSes running on other CPUs. | ||
11 | */ | ||
12 | |||
13 | static inline void sync_set_bit(int nr, volatile void *addr) | ||
14 | { | ||
15 | set_bit(nr, addr); | ||
16 | } | ||
17 | |||
18 | static inline void sync_clear_bit(int nr, volatile void *addr) | ||
19 | { | ||
20 | clear_bit(nr, addr); | ||
21 | } | ||
22 | |||
23 | static inline void sync_change_bit(int nr, volatile void *addr) | ||
24 | { | ||
25 | change_bit(nr, addr); | ||
26 | } | ||
27 | |||
28 | static inline int sync_test_and_set_bit(int nr, volatile void *addr) | ||
29 | { | ||
30 | return test_and_set_bit(nr, addr); | ||
31 | } | ||
32 | |||
33 | static inline int sync_test_and_clear_bit(int nr, volatile void *addr) | ||
34 | { | ||
35 | return test_and_clear_bit(nr, addr); | ||
36 | } | ||
37 | |||
38 | static inline int sync_test_and_change_bit(int nr, volatile void *addr) | ||
39 | { | ||
40 | return test_and_change_bit(nr, addr); | ||
41 | } | ||
42 | |||
43 | static inline int sync_test_bit(int nr, const volatile void *addr) | ||
44 | { | ||
45 | return test_bit(nr, addr); | ||
46 | } | ||
47 | |||
48 | #define sync_cmpxchg(ptr, old, new) \ | ||
49 | ((__typeof__(*(ptr)))cmpxchg_acq((ptr), (old), (new))) | ||
50 | |||
51 | #endif /* _ASM_IA64_SYNC_BITOPS_H */ | ||
diff --git a/arch/ia64/include/asm/timex.h b/arch/ia64/include/asm/timex.h index 05a6baf8a472..4e03cfe74a0c 100644 --- a/arch/ia64/include/asm/timex.h +++ b/arch/ia64/include/asm/timex.h | |||
@@ -39,4 +39,6 @@ get_cycles (void) | |||
39 | return ret; | 39 | return ret; |
40 | } | 40 | } |
41 | 41 | ||
42 | extern void ia64_cpu_local_tick (void); | ||
43 | |||
42 | #endif /* _ASM_IA64_TIMEX_H */ | 44 | #endif /* _ASM_IA64_TIMEX_H */ |
diff --git a/arch/ia64/include/asm/xen/events.h b/arch/ia64/include/asm/xen/events.h new file mode 100644 index 000000000000..73248781fba8 --- /dev/null +++ b/arch/ia64/include/asm/xen/events.h | |||
@@ -0,0 +1,50 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/include/asm/xen/events.h | ||
3 | * | ||
4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | #ifndef _ASM_IA64_XEN_EVENTS_H | ||
23 | #define _ASM_IA64_XEN_EVENTS_H | ||
24 | |||
25 | enum ipi_vector { | ||
26 | XEN_RESCHEDULE_VECTOR, | ||
27 | XEN_IPI_VECTOR, | ||
28 | XEN_CMCP_VECTOR, | ||
29 | XEN_CPEP_VECTOR, | ||
30 | |||
31 | XEN_NR_IPIS, | ||
32 | }; | ||
33 | |||
34 | static inline int xen_irqs_disabled(struct pt_regs *regs) | ||
35 | { | ||
36 | return !(ia64_psr(regs)->i); | ||
37 | } | ||
38 | |||
39 | static inline void xen_do_IRQ(int irq, struct pt_regs *regs) | ||
40 | { | ||
41 | struct pt_regs *old_regs; | ||
42 | old_regs = set_irq_regs(regs); | ||
43 | irq_enter(); | ||
44 | __do_IRQ(irq); | ||
45 | irq_exit(); | ||
46 | set_irq_regs(old_regs); | ||
47 | } | ||
48 | #define irq_ctx_init(cpu) do { } while (0) | ||
49 | |||
50 | #endif /* _ASM_IA64_XEN_EVENTS_H */ | ||
diff --git a/arch/ia64/include/asm/xen/grant_table.h b/arch/ia64/include/asm/xen/grant_table.h new file mode 100644 index 000000000000..2b1fae0e2d11 --- /dev/null +++ b/arch/ia64/include/asm/xen/grant_table.h | |||
@@ -0,0 +1,29 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/include/asm/xen/grant_table.h | ||
3 | * | ||
4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | |||
23 | #ifndef _ASM_IA64_XEN_GRANT_TABLE_H | ||
24 | #define _ASM_IA64_XEN_GRANT_TABLE_H | ||
25 | |||
26 | struct vm_struct *xen_alloc_vm_area(unsigned long size); | ||
27 | void xen_free_vm_area(struct vm_struct *area); | ||
28 | |||
29 | #endif /* _ASM_IA64_XEN_GRANT_TABLE_H */ | ||
diff --git a/arch/ia64/include/asm/xen/hypercall.h b/arch/ia64/include/asm/xen/hypercall.h new file mode 100644 index 000000000000..96fc62366aa4 --- /dev/null +++ b/arch/ia64/include/asm/xen/hypercall.h | |||
@@ -0,0 +1,265 @@ | |||
1 | /****************************************************************************** | ||
2 | * hypercall.h | ||
3 | * | ||
4 | * Linux-specific hypervisor handling. | ||
5 | * | ||
6 | * Copyright (c) 2002-2004, K A Fraser | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or | ||
9 | * modify it under the terms of the GNU General Public License version 2 | ||
10 | * as published by the Free Software Foundation; or, when distributed | ||
11 | * separately from the Linux kernel or incorporated into other | ||
12 | * software packages, subject to the following license: | ||
13 | * | ||
14 | * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
15 | * of this source file (the "Software"), to deal in the Software without | ||
16 | * restriction, including without limitation the rights to use, copy, modify, | ||
17 | * merge, publish, distribute, sublicense, and/or sell copies of the Software, | ||
18 | * and to permit persons to whom the Software is furnished to do so, subject to | ||
19 | * the following conditions: | ||
20 | * | ||
21 | * The above copyright notice and this permission notice shall be included in | ||
22 | * all copies or substantial portions of the Software. | ||
23 | * | ||
24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
25 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
26 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
27 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
28 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
29 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | ||
30 | * IN THE SOFTWARE. | ||
31 | */ | ||
32 | |||
33 | #ifndef _ASM_IA64_XEN_HYPERCALL_H | ||
34 | #define _ASM_IA64_XEN_HYPERCALL_H | ||
35 | |||
36 | #include <xen/interface/xen.h> | ||
37 | #include <xen/interface/physdev.h> | ||
38 | #include <xen/interface/sched.h> | ||
39 | #include <asm/xen/xcom_hcall.h> | ||
40 | struct xencomm_handle; | ||
41 | extern unsigned long __hypercall(unsigned long a1, unsigned long a2, | ||
42 | unsigned long a3, unsigned long a4, | ||
43 | unsigned long a5, unsigned long cmd); | ||
44 | |||
45 | /* | ||
46 | * Assembler stubs for hyper-calls. | ||
47 | */ | ||
48 | |||
49 | #define _hypercall0(type, name) \ | ||
50 | ({ \ | ||
51 | long __res; \ | ||
52 | __res = __hypercall(0, 0, 0, 0, 0, __HYPERVISOR_##name);\ | ||
53 | (type)__res; \ | ||
54 | }) | ||
55 | |||
56 | #define _hypercall1(type, name, a1) \ | ||
57 | ({ \ | ||
58 | long __res; \ | ||
59 | __res = __hypercall((unsigned long)a1, \ | ||
60 | 0, 0, 0, 0, __HYPERVISOR_##name); \ | ||
61 | (type)__res; \ | ||
62 | }) | ||
63 | |||
64 | #define _hypercall2(type, name, a1, a2) \ | ||
65 | ({ \ | ||
66 | long __res; \ | ||
67 | __res = __hypercall((unsigned long)a1, \ | ||
68 | (unsigned long)a2, \ | ||
69 | 0, 0, 0, __HYPERVISOR_##name); \ | ||
70 | (type)__res; \ | ||
71 | }) | ||
72 | |||
73 | #define _hypercall3(type, name, a1, a2, a3) \ | ||
74 | ({ \ | ||
75 | long __res; \ | ||
76 | __res = __hypercall((unsigned long)a1, \ | ||
77 | (unsigned long)a2, \ | ||
78 | (unsigned long)a3, \ | ||
79 | 0, 0, __HYPERVISOR_##name); \ | ||
80 | (type)__res; \ | ||
81 | }) | ||
82 | |||
83 | #define _hypercall4(type, name, a1, a2, a3, a4) \ | ||
84 | ({ \ | ||
85 | long __res; \ | ||
86 | __res = __hypercall((unsigned long)a1, \ | ||
87 | (unsigned long)a2, \ | ||
88 | (unsigned long)a3, \ | ||
89 | (unsigned long)a4, \ | ||
90 | 0, __HYPERVISOR_##name); \ | ||
91 | (type)__res; \ | ||
92 | }) | ||
93 | |||
94 | #define _hypercall5(type, name, a1, a2, a3, a4, a5) \ | ||
95 | ({ \ | ||
96 | long __res; \ | ||
97 | __res = __hypercall((unsigned long)a1, \ | ||
98 | (unsigned long)a2, \ | ||
99 | (unsigned long)a3, \ | ||
100 | (unsigned long)a4, \ | ||
101 | (unsigned long)a5, \ | ||
102 | __HYPERVISOR_##name); \ | ||
103 | (type)__res; \ | ||
104 | }) | ||
105 | |||
106 | |||
107 | static inline int | ||
108 | xencomm_arch_hypercall_sched_op(int cmd, struct xencomm_handle *arg) | ||
109 | { | ||
110 | return _hypercall2(int, sched_op_new, cmd, arg); | ||
111 | } | ||
112 | |||
113 | static inline long | ||
114 | HYPERVISOR_set_timer_op(u64 timeout) | ||
115 | { | ||
116 | unsigned long timeout_hi = (unsigned long)(timeout >> 32); | ||
117 | unsigned long timeout_lo = (unsigned long)timeout; | ||
118 | return _hypercall2(long, set_timer_op, timeout_lo, timeout_hi); | ||
119 | } | ||
120 | |||
121 | static inline int | ||
122 | xencomm_arch_hypercall_multicall(struct xencomm_handle *call_list, | ||
123 | int nr_calls) | ||
124 | { | ||
125 | return _hypercall2(int, multicall, call_list, nr_calls); | ||
126 | } | ||
127 | |||
128 | static inline int | ||
129 | xencomm_arch_hypercall_memory_op(unsigned int cmd, struct xencomm_handle *arg) | ||
130 | { | ||
131 | return _hypercall2(int, memory_op, cmd, arg); | ||
132 | } | ||
133 | |||
134 | static inline int | ||
135 | xencomm_arch_hypercall_event_channel_op(int cmd, struct xencomm_handle *arg) | ||
136 | { | ||
137 | return _hypercall2(int, event_channel_op, cmd, arg); | ||
138 | } | ||
139 | |||
140 | static inline int | ||
141 | xencomm_arch_hypercall_xen_version(int cmd, struct xencomm_handle *arg) | ||
142 | { | ||
143 | return _hypercall2(int, xen_version, cmd, arg); | ||
144 | } | ||
145 | |||
146 | static inline int | ||
147 | xencomm_arch_hypercall_console_io(int cmd, int count, | ||
148 | struct xencomm_handle *str) | ||
149 | { | ||
150 | return _hypercall3(int, console_io, cmd, count, str); | ||
151 | } | ||
152 | |||
153 | static inline int | ||
154 | xencomm_arch_hypercall_physdev_op(int cmd, struct xencomm_handle *arg) | ||
155 | { | ||
156 | return _hypercall2(int, physdev_op, cmd, arg); | ||
157 | } | ||
158 | |||
159 | static inline int | ||
160 | xencomm_arch_hypercall_grant_table_op(unsigned int cmd, | ||
161 | struct xencomm_handle *uop, | ||
162 | unsigned int count) | ||
163 | { | ||
164 | return _hypercall3(int, grant_table_op, cmd, uop, count); | ||
165 | } | ||
166 | |||
167 | int HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count); | ||
168 | |||
169 | extern int xencomm_arch_hypercall_suspend(struct xencomm_handle *arg); | ||
170 | |||
171 | static inline int | ||
172 | xencomm_arch_hypercall_callback_op(int cmd, struct xencomm_handle *arg) | ||
173 | { | ||
174 | return _hypercall2(int, callback_op, cmd, arg); | ||
175 | } | ||
176 | |||
177 | static inline long | ||
178 | xencomm_arch_hypercall_vcpu_op(int cmd, int cpu, void *arg) | ||
179 | { | ||
180 | return _hypercall3(long, vcpu_op, cmd, cpu, arg); | ||
181 | } | ||
182 | |||
183 | static inline int | ||
184 | HYPERVISOR_physdev_op(int cmd, void *arg) | ||
185 | { | ||
186 | switch (cmd) { | ||
187 | case PHYSDEVOP_eoi: | ||
188 | return _hypercall1(int, ia64_fast_eoi, | ||
189 | ((struct physdev_eoi *)arg)->irq); | ||
190 | default: | ||
191 | return xencomm_hypercall_physdev_op(cmd, arg); | ||
192 | } | ||
193 | } | ||
194 | |||
195 | static inline long | ||
196 | xencomm_arch_hypercall_opt_feature(struct xencomm_handle *arg) | ||
197 | { | ||
198 | return _hypercall1(long, opt_feature, arg); | ||
199 | } | ||
200 | |||
201 | /* for balloon driver */ | ||
202 | #define HYPERVISOR_update_va_mapping(va, new_val, flags) (0) | ||
203 | |||
204 | /* Use xencomm to do hypercalls. */ | ||
205 | #define HYPERVISOR_sched_op xencomm_hypercall_sched_op | ||
206 | #define HYPERVISOR_event_channel_op xencomm_hypercall_event_channel_op | ||
207 | #define HYPERVISOR_callback_op xencomm_hypercall_callback_op | ||
208 | #define HYPERVISOR_multicall xencomm_hypercall_multicall | ||
209 | #define HYPERVISOR_xen_version xencomm_hypercall_xen_version | ||
210 | #define HYPERVISOR_console_io xencomm_hypercall_console_io | ||
211 | #define HYPERVISOR_memory_op xencomm_hypercall_memory_op | ||
212 | #define HYPERVISOR_suspend xencomm_hypercall_suspend | ||
213 | #define HYPERVISOR_vcpu_op xencomm_hypercall_vcpu_op | ||
214 | #define HYPERVISOR_opt_feature xencomm_hypercall_opt_feature | ||
215 | |||
216 | /* to compile gnttab_copy_grant_page() in drivers/xen/core/gnttab.c */ | ||
217 | #define HYPERVISOR_mmu_update(req, count, success_count, domid) ({ BUG(); 0; }) | ||
218 | |||
219 | static inline int | ||
220 | HYPERVISOR_shutdown( | ||
221 | unsigned int reason) | ||
222 | { | ||
223 | struct sched_shutdown sched_shutdown = { | ||
224 | .reason = reason | ||
225 | }; | ||
226 | |||
227 | int rc = HYPERVISOR_sched_op(SCHEDOP_shutdown, &sched_shutdown); | ||
228 | |||
229 | return rc; | ||
230 | } | ||
231 | |||
232 | /* for netfront.c, netback.c */ | ||
233 | #define MULTI_UVMFLAGS_INDEX 0 /* XXX any value */ | ||
234 | |||
235 | static inline void | ||
236 | MULTI_update_va_mapping( | ||
237 | struct multicall_entry *mcl, unsigned long va, | ||
238 | pte_t new_val, unsigned long flags) | ||
239 | { | ||
240 | mcl->op = __HYPERVISOR_update_va_mapping; | ||
241 | mcl->result = 0; | ||
242 | } | ||
243 | |||
244 | static inline void | ||
245 | MULTI_grant_table_op(struct multicall_entry *mcl, unsigned int cmd, | ||
246 | void *uop, unsigned int count) | ||
247 | { | ||
248 | mcl->op = __HYPERVISOR_grant_table_op; | ||
249 | mcl->args[0] = cmd; | ||
250 | mcl->args[1] = (unsigned long)uop; | ||
251 | mcl->args[2] = count; | ||
252 | } | ||
253 | |||
254 | static inline void | ||
255 | MULTI_mmu_update(struct multicall_entry *mcl, struct mmu_update *req, | ||
256 | int count, int *success_count, domid_t domid) | ||
257 | { | ||
258 | mcl->op = __HYPERVISOR_mmu_update; | ||
259 | mcl->args[0] = (unsigned long)req; | ||
260 | mcl->args[1] = count; | ||
261 | mcl->args[2] = (unsigned long)success_count; | ||
262 | mcl->args[3] = domid; | ||
263 | } | ||
264 | |||
265 | #endif /* _ASM_IA64_XEN_HYPERCALL_H */ | ||
diff --git a/arch/ia64/include/asm/xen/hypervisor.h b/arch/ia64/include/asm/xen/hypervisor.h new file mode 100644 index 000000000000..7a804e80fc67 --- /dev/null +++ b/arch/ia64/include/asm/xen/hypervisor.h | |||
@@ -0,0 +1,89 @@ | |||
1 | /****************************************************************************** | ||
2 | * hypervisor.h | ||
3 | * | ||
4 | * Linux-specific hypervisor handling. | ||
5 | * | ||
6 | * Copyright (c) 2002-2004, K A Fraser | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or | ||
9 | * modify it under the terms of the GNU General Public License version 2 | ||
10 | * as published by the Free Software Foundation; or, when distributed | ||
11 | * separately from the Linux kernel or incorporated into other | ||
12 | * software packages, subject to the following license: | ||
13 | * | ||
14 | * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
15 | * of this source file (the "Software"), to deal in the Software without | ||
16 | * restriction, including without limitation the rights to use, copy, modify, | ||
17 | * merge, publish, distribute, sublicense, and/or sell copies of the Software, | ||
18 | * and to permit persons to whom the Software is furnished to do so, subject to | ||
19 | * the following conditions: | ||
20 | * | ||
21 | * The above copyright notice and this permission notice shall be included in | ||
22 | * all copies or substantial portions of the Software. | ||
23 | * | ||
24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
25 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
26 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
27 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
28 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
29 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | ||
30 | * IN THE SOFTWARE. | ||
31 | */ | ||
32 | |||
33 | #ifndef _ASM_IA64_XEN_HYPERVISOR_H | ||
34 | #define _ASM_IA64_XEN_HYPERVISOR_H | ||
35 | |||
36 | #ifdef CONFIG_XEN | ||
37 | |||
38 | #include <linux/init.h> | ||
39 | #include <xen/interface/xen.h> | ||
40 | #include <xen/interface/version.h> /* to compile feature.c */ | ||
41 | #include <xen/features.h> /* to comiple xen-netfront.c */ | ||
42 | #include <asm/xen/hypercall.h> | ||
43 | |||
44 | /* xen_domain_type is set before executing any C code by early_xen_setup */ | ||
45 | enum xen_domain_type { | ||
46 | XEN_NATIVE, | ||
47 | XEN_PV_DOMAIN, | ||
48 | XEN_HVM_DOMAIN, | ||
49 | }; | ||
50 | |||
51 | extern enum xen_domain_type xen_domain_type; | ||
52 | |||
53 | #define xen_domain() (xen_domain_type != XEN_NATIVE) | ||
54 | #define xen_pv_domain() (xen_domain_type == XEN_PV_DOMAIN) | ||
55 | #define xen_initial_domain() (xen_pv_domain() && \ | ||
56 | (xen_start_info->flags & SIF_INITDOMAIN)) | ||
57 | #define xen_hvm_domain() (xen_domain_type == XEN_HVM_DOMAIN) | ||
58 | |||
59 | /* deprecated. remove this */ | ||
60 | #define is_running_on_xen() (xen_domain_type == XEN_PV_DOMAIN) | ||
61 | |||
62 | extern struct shared_info *HYPERVISOR_shared_info; | ||
63 | extern struct start_info *xen_start_info; | ||
64 | |||
65 | void __init xen_setup_vcpu_info_placement(void); | ||
66 | void force_evtchn_callback(void); | ||
67 | |||
68 | /* for drivers/xen/balloon/balloon.c */ | ||
69 | #ifdef CONFIG_XEN_SCRUB_PAGES | ||
70 | #define scrub_pages(_p, _n) memset((void *)(_p), 0, (_n) << PAGE_SHIFT) | ||
71 | #else | ||
72 | #define scrub_pages(_p, _n) ((void)0) | ||
73 | #endif | ||
74 | |||
75 | /* For setup_arch() in arch/ia64/kernel/setup.c */ | ||
76 | void xen_ia64_enable_opt_feature(void); | ||
77 | |||
78 | #else /* CONFIG_XEN */ | ||
79 | |||
80 | #define xen_domain() (0) | ||
81 | #define xen_pv_domain() (0) | ||
82 | #define xen_initial_domain() (0) | ||
83 | #define xen_hvm_domain() (0) | ||
84 | #define is_running_on_xen() (0) /* deprecated. remove this */ | ||
85 | #endif | ||
86 | |||
87 | #define is_initial_xendomain() (0) /* deprecated. remove this */ | ||
88 | |||
89 | #endif /* _ASM_IA64_XEN_HYPERVISOR_H */ | ||
diff --git a/arch/ia64/include/asm/xen/inst.h b/arch/ia64/include/asm/xen/inst.h new file mode 100644 index 000000000000..19c2ae1d878a --- /dev/null +++ b/arch/ia64/include/asm/xen/inst.h | |||
@@ -0,0 +1,458 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/include/asm/xen/inst.h | ||
3 | * | ||
4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | |||
23 | #include <asm/xen/privop.h> | ||
24 | |||
25 | #define ia64_ivt xen_ivt | ||
26 | #define DO_SAVE_MIN XEN_DO_SAVE_MIN | ||
27 | |||
28 | #define __paravirt_switch_to xen_switch_to | ||
29 | #define __paravirt_leave_syscall xen_leave_syscall | ||
30 | #define __paravirt_work_processed_syscall xen_work_processed_syscall | ||
31 | #define __paravirt_leave_kernel xen_leave_kernel | ||
32 | #define __paravirt_pending_syscall_end xen_work_pending_syscall_end | ||
33 | #define __paravirt_work_processed_syscall_target \ | ||
34 | xen_work_processed_syscall | ||
35 | |||
36 | #define MOV_FROM_IFA(reg) \ | ||
37 | movl reg = XSI_IFA; \ | ||
38 | ;; \ | ||
39 | ld8 reg = [reg] | ||
40 | |||
41 | #define MOV_FROM_ITIR(reg) \ | ||
42 | movl reg = XSI_ITIR; \ | ||
43 | ;; \ | ||
44 | ld8 reg = [reg] | ||
45 | |||
46 | #define MOV_FROM_ISR(reg) \ | ||
47 | movl reg = XSI_ISR; \ | ||
48 | ;; \ | ||
49 | ld8 reg = [reg] | ||
50 | |||
51 | #define MOV_FROM_IHA(reg) \ | ||
52 | movl reg = XSI_IHA; \ | ||
53 | ;; \ | ||
54 | ld8 reg = [reg] | ||
55 | |||
56 | #define MOV_FROM_IPSR(pred, reg) \ | ||
57 | (pred) movl reg = XSI_IPSR; \ | ||
58 | ;; \ | ||
59 | (pred) ld8 reg = [reg] | ||
60 | |||
61 | #define MOV_FROM_IIM(reg) \ | ||
62 | movl reg = XSI_IIM; \ | ||
63 | ;; \ | ||
64 | ld8 reg = [reg] | ||
65 | |||
66 | #define MOV_FROM_IIP(reg) \ | ||
67 | movl reg = XSI_IIP; \ | ||
68 | ;; \ | ||
69 | ld8 reg = [reg] | ||
70 | |||
71 | .macro __MOV_FROM_IVR reg, clob | ||
72 | .ifc "\reg", "r8" | ||
73 | XEN_HYPER_GET_IVR | ||
74 | .exitm | ||
75 | .endif | ||
76 | .ifc "\clob", "r8" | ||
77 | XEN_HYPER_GET_IVR | ||
78 | ;; | ||
79 | mov \reg = r8 | ||
80 | .exitm | ||
81 | .endif | ||
82 | |||
83 | mov \clob = r8 | ||
84 | ;; | ||
85 | XEN_HYPER_GET_IVR | ||
86 | ;; | ||
87 | mov \reg = r8 | ||
88 | ;; | ||
89 | mov r8 = \clob | ||
90 | .endm | ||
91 | #define MOV_FROM_IVR(reg, clob) __MOV_FROM_IVR reg, clob | ||
92 | |||
93 | .macro __MOV_FROM_PSR pred, reg, clob | ||
94 | .ifc "\reg", "r8" | ||
95 | (\pred) XEN_HYPER_GET_PSR; | ||
96 | .exitm | ||
97 | .endif | ||
98 | .ifc "\clob", "r8" | ||
99 | (\pred) XEN_HYPER_GET_PSR | ||
100 | ;; | ||
101 | (\pred) mov \reg = r8 | ||
102 | .exitm | ||
103 | .endif | ||
104 | |||
105 | (\pred) mov \clob = r8 | ||
106 | (\pred) XEN_HYPER_GET_PSR | ||
107 | ;; | ||
108 | (\pred) mov \reg = r8 | ||
109 | (\pred) mov r8 = \clob | ||
110 | .endm | ||
111 | #define MOV_FROM_PSR(pred, reg, clob) __MOV_FROM_PSR pred, reg, clob | ||
112 | |||
113 | |||
114 | #define MOV_TO_IFA(reg, clob) \ | ||
115 | movl clob = XSI_IFA; \ | ||
116 | ;; \ | ||
117 | st8 [clob] = reg \ | ||
118 | |||
119 | #define MOV_TO_ITIR(pred, reg, clob) \ | ||
120 | (pred) movl clob = XSI_ITIR; \ | ||
121 | ;; \ | ||
122 | (pred) st8 [clob] = reg | ||
123 | |||
124 | #define MOV_TO_IHA(pred, reg, clob) \ | ||
125 | (pred) movl clob = XSI_IHA; \ | ||
126 | ;; \ | ||
127 | (pred) st8 [clob] = reg | ||
128 | |||
129 | #define MOV_TO_IPSR(pred, reg, clob) \ | ||
130 | (pred) movl clob = XSI_IPSR; \ | ||
131 | ;; \ | ||
132 | (pred) st8 [clob] = reg; \ | ||
133 | ;; | ||
134 | |||
135 | #define MOV_TO_IFS(pred, reg, clob) \ | ||
136 | (pred) movl clob = XSI_IFS; \ | ||
137 | ;; \ | ||
138 | (pred) st8 [clob] = reg; \ | ||
139 | ;; | ||
140 | |||
141 | #define MOV_TO_IIP(reg, clob) \ | ||
142 | movl clob = XSI_IIP; \ | ||
143 | ;; \ | ||
144 | st8 [clob] = reg | ||
145 | |||
146 | .macro ____MOV_TO_KR kr, reg, clob0, clob1 | ||
147 | .ifc "\clob0", "r9" | ||
148 | .error "clob0 \clob0 must not be r9" | ||
149 | .endif | ||
150 | .ifc "\clob1", "r8" | ||
151 | .error "clob1 \clob1 must not be r8" | ||
152 | .endif | ||
153 | |||
154 | .ifnc "\reg", "r9" | ||
155 | .ifnc "\clob1", "r9" | ||
156 | mov \clob1 = r9 | ||
157 | .endif | ||
158 | mov r9 = \reg | ||
159 | .endif | ||
160 | .ifnc "\clob0", "r8" | ||
161 | mov \clob0 = r8 | ||
162 | .endif | ||
163 | mov r8 = \kr | ||
164 | ;; | ||
165 | XEN_HYPER_SET_KR | ||
166 | |||
167 | .ifnc "\reg", "r9" | ||
168 | .ifnc "\clob1", "r9" | ||
169 | mov r9 = \clob1 | ||
170 | .endif | ||
171 | .endif | ||
172 | .ifnc "\clob0", "r8" | ||
173 | mov r8 = \clob0 | ||
174 | .endif | ||
175 | .endm | ||
176 | |||
177 | .macro __MOV_TO_KR kr, reg, clob0, clob1 | ||
178 | .ifc "\clob0", "r9" | ||
179 | ____MOV_TO_KR \kr, \reg, \clob1, \clob0 | ||
180 | .exitm | ||
181 | .endif | ||
182 | .ifc "\clob1", "r8" | ||
183 | ____MOV_TO_KR \kr, \reg, \clob1, \clob0 | ||
184 | .exitm | ||
185 | .endif | ||
186 | |||
187 | ____MOV_TO_KR \kr, \reg, \clob0, \clob1 | ||
188 | .endm | ||
189 | |||
190 | #define MOV_TO_KR(kr, reg, clob0, clob1) \ | ||
191 | __MOV_TO_KR IA64_KR_ ## kr, reg, clob0, clob1 | ||
192 | |||
193 | |||
194 | .macro __ITC_I pred, reg, clob | ||
195 | .ifc "\reg", "r8" | ||
196 | (\pred) XEN_HYPER_ITC_I | ||
197 | .exitm | ||
198 | .endif | ||
199 | .ifc "\clob", "r8" | ||
200 | (\pred) mov r8 = \reg | ||
201 | ;; | ||
202 | (\pred) XEN_HYPER_ITC_I | ||
203 | .exitm | ||
204 | .endif | ||
205 | |||
206 | (\pred) mov \clob = r8 | ||
207 | (\pred) mov r8 = \reg | ||
208 | ;; | ||
209 | (\pred) XEN_HYPER_ITC_I | ||
210 | ;; | ||
211 | (\pred) mov r8 = \clob | ||
212 | ;; | ||
213 | .endm | ||
214 | #define ITC_I(pred, reg, clob) __ITC_I pred, reg, clob | ||
215 | |||
216 | .macro __ITC_D pred, reg, clob | ||
217 | .ifc "\reg", "r8" | ||
218 | (\pred) XEN_HYPER_ITC_D | ||
219 | ;; | ||
220 | .exitm | ||
221 | .endif | ||
222 | .ifc "\clob", "r8" | ||
223 | (\pred) mov r8 = \reg | ||
224 | ;; | ||
225 | (\pred) XEN_HYPER_ITC_D | ||
226 | ;; | ||
227 | .exitm | ||
228 | .endif | ||
229 | |||
230 | (\pred) mov \clob = r8 | ||
231 | (\pred) mov r8 = \reg | ||
232 | ;; | ||
233 | (\pred) XEN_HYPER_ITC_D | ||
234 | ;; | ||
235 | (\pred) mov r8 = \clob | ||
236 | ;; | ||
237 | .endm | ||
238 | #define ITC_D(pred, reg, clob) __ITC_D pred, reg, clob | ||
239 | |||
240 | .macro __ITC_I_AND_D pred_i, pred_d, reg, clob | ||
241 | .ifc "\reg", "r8" | ||
242 | (\pred_i)XEN_HYPER_ITC_I | ||
243 | ;; | ||
244 | (\pred_d)XEN_HYPER_ITC_D | ||
245 | ;; | ||
246 | .exitm | ||
247 | .endif | ||
248 | .ifc "\clob", "r8" | ||
249 | mov r8 = \reg | ||
250 | ;; | ||
251 | (\pred_i)XEN_HYPER_ITC_I | ||
252 | ;; | ||
253 | (\pred_d)XEN_HYPER_ITC_D | ||
254 | ;; | ||
255 | .exitm | ||
256 | .endif | ||
257 | |||
258 | mov \clob = r8 | ||
259 | mov r8 = \reg | ||
260 | ;; | ||
261 | (\pred_i)XEN_HYPER_ITC_I | ||
262 | ;; | ||
263 | (\pred_d)XEN_HYPER_ITC_D | ||
264 | ;; | ||
265 | mov r8 = \clob | ||
266 | ;; | ||
267 | .endm | ||
268 | #define ITC_I_AND_D(pred_i, pred_d, reg, clob) \ | ||
269 | __ITC_I_AND_D pred_i, pred_d, reg, clob | ||
270 | |||
271 | .macro __THASH pred, reg0, reg1, clob | ||
272 | .ifc "\reg0", "r8" | ||
273 | (\pred) mov r8 = \reg1 | ||
274 | (\pred) XEN_HYPER_THASH | ||
275 | .exitm | ||
276 | .endc | ||
277 | .ifc "\reg1", "r8" | ||
278 | (\pred) XEN_HYPER_THASH | ||
279 | ;; | ||
280 | (\pred) mov \reg0 = r8 | ||
281 | ;; | ||
282 | .exitm | ||
283 | .endif | ||
284 | .ifc "\clob", "r8" | ||
285 | (\pred) mov r8 = \reg1 | ||
286 | (\pred) XEN_HYPER_THASH | ||
287 | ;; | ||
288 | (\pred) mov \reg0 = r8 | ||
289 | ;; | ||
290 | .exitm | ||
291 | .endif | ||
292 | |||
293 | (\pred) mov \clob = r8 | ||
294 | (\pred) mov r8 = \reg1 | ||
295 | (\pred) XEN_HYPER_THASH | ||
296 | ;; | ||
297 | (\pred) mov \reg0 = r8 | ||
298 | (\pred) mov r8 = \clob | ||
299 | ;; | ||
300 | .endm | ||
301 | #define THASH(pred, reg0, reg1, clob) __THASH pred, reg0, reg1, clob | ||
302 | |||
303 | #define SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(clob0, clob1) \ | ||
304 | mov clob0 = 1; \ | ||
305 | movl clob1 = XSI_PSR_IC; \ | ||
306 | ;; \ | ||
307 | st4 [clob1] = clob0 \ | ||
308 | ;; | ||
309 | |||
310 | #define SSM_PSR_IC_AND_SRLZ_D(clob0, clob1) \ | ||
311 | ;; \ | ||
312 | srlz.d; \ | ||
313 | mov clob1 = 1; \ | ||
314 | movl clob0 = XSI_PSR_IC; \ | ||
315 | ;; \ | ||
316 | st4 [clob0] = clob1 | ||
317 | |||
318 | #define RSM_PSR_IC(clob) \ | ||
319 | movl clob = XSI_PSR_IC; \ | ||
320 | ;; \ | ||
321 | st4 [clob] = r0; \ | ||
322 | ;; | ||
323 | |||
324 | /* pred will be clobbered */ | ||
325 | #define MASK_TO_PEND_OFS (-1) | ||
326 | #define SSM_PSR_I(pred, pred_clob, clob) \ | ||
327 | (pred) movl clob = XSI_PSR_I_ADDR \ | ||
328 | ;; \ | ||
329 | (pred) ld8 clob = [clob] \ | ||
330 | ;; \ | ||
331 | /* if (pred) vpsr.i = 1 */ \ | ||
332 | /* if (pred) (vcpu->vcpu_info->evtchn_upcall_mask)=0 */ \ | ||
333 | (pred) st1 [clob] = r0, MASK_TO_PEND_OFS \ | ||
334 | ;; \ | ||
335 | /* if (vcpu->vcpu_info->evtchn_upcall_pending) */ \ | ||
336 | (pred) ld1 clob = [clob] \ | ||
337 | ;; \ | ||
338 | (pred) cmp.ne.unc pred_clob, p0 = clob, r0 \ | ||
339 | ;; \ | ||
340 | (pred_clob)XEN_HYPER_SSM_I /* do areal ssm psr.i */ | ||
341 | |||
342 | #define RSM_PSR_I(pred, clob0, clob1) \ | ||
343 | movl clob0 = XSI_PSR_I_ADDR; \ | ||
344 | mov clob1 = 1; \ | ||
345 | ;; \ | ||
346 | ld8 clob0 = [clob0]; \ | ||
347 | ;; \ | ||
348 | (pred) st1 [clob0] = clob1 | ||
349 | |||
350 | #define RSM_PSR_I_IC(clob0, clob1, clob2) \ | ||
351 | movl clob0 = XSI_PSR_I_ADDR; \ | ||
352 | movl clob1 = XSI_PSR_IC; \ | ||
353 | ;; \ | ||
354 | ld8 clob0 = [clob0]; \ | ||
355 | mov clob2 = 1; \ | ||
356 | ;; \ | ||
357 | /* note: clears both vpsr.i and vpsr.ic! */ \ | ||
358 | st1 [clob0] = clob2; \ | ||
359 | st4 [clob1] = r0; \ | ||
360 | ;; | ||
361 | |||
362 | #define RSM_PSR_DT \ | ||
363 | XEN_HYPER_RSM_PSR_DT | ||
364 | |||
365 | #define SSM_PSR_DT_AND_SRLZ_I \ | ||
366 | XEN_HYPER_SSM_PSR_DT | ||
367 | |||
368 | #define BSW_0(clob0, clob1, clob2) \ | ||
369 | ;; \ | ||
370 | /* r16-r31 all now hold bank1 values */ \ | ||
371 | mov clob2 = ar.unat; \ | ||
372 | movl clob0 = XSI_BANK1_R16; \ | ||
373 | movl clob1 = XSI_BANK1_R16 + 8; \ | ||
374 | ;; \ | ||
375 | .mem.offset 0, 0; st8.spill [clob0] = r16, 16; \ | ||
376 | .mem.offset 8, 0; st8.spill [clob1] = r17, 16; \ | ||
377 | ;; \ | ||
378 | .mem.offset 0, 0; st8.spill [clob0] = r18, 16; \ | ||
379 | .mem.offset 8, 0; st8.spill [clob1] = r19, 16; \ | ||
380 | ;; \ | ||
381 | .mem.offset 0, 0; st8.spill [clob0] = r20, 16; \ | ||
382 | .mem.offset 8, 0; st8.spill [clob1] = r21, 16; \ | ||
383 | ;; \ | ||
384 | .mem.offset 0, 0; st8.spill [clob0] = r22, 16; \ | ||
385 | .mem.offset 8, 0; st8.spill [clob1] = r23, 16; \ | ||
386 | ;; \ | ||
387 | .mem.offset 0, 0; st8.spill [clob0] = r24, 16; \ | ||
388 | .mem.offset 8, 0; st8.spill [clob1] = r25, 16; \ | ||
389 | ;; \ | ||
390 | .mem.offset 0, 0; st8.spill [clob0] = r26, 16; \ | ||
391 | .mem.offset 8, 0; st8.spill [clob1] = r27, 16; \ | ||
392 | ;; \ | ||
393 | .mem.offset 0, 0; st8.spill [clob0] = r28, 16; \ | ||
394 | .mem.offset 8, 0; st8.spill [clob1] = r29, 16; \ | ||
395 | ;; \ | ||
396 | .mem.offset 0, 0; st8.spill [clob0] = r30, 16; \ | ||
397 | .mem.offset 8, 0; st8.spill [clob1] = r31, 16; \ | ||
398 | ;; \ | ||
399 | mov clob1 = ar.unat; \ | ||
400 | movl clob0 = XSI_B1NAT; \ | ||
401 | ;; \ | ||
402 | st8 [clob0] = clob1; \ | ||
403 | mov ar.unat = clob2; \ | ||
404 | movl clob0 = XSI_BANKNUM; \ | ||
405 | ;; \ | ||
406 | st4 [clob0] = r0 | ||
407 | |||
408 | |||
409 | /* FIXME: THIS CODE IS NOT NaT SAFE! */ | ||
410 | #define XEN_BSW_1(clob) \ | ||
411 | mov clob = ar.unat; \ | ||
412 | movl r30 = XSI_B1NAT; \ | ||
413 | ;; \ | ||
414 | ld8 r30 = [r30]; \ | ||
415 | mov r31 = 1; \ | ||
416 | ;; \ | ||
417 | mov ar.unat = r30; \ | ||
418 | movl r30 = XSI_BANKNUM; \ | ||
419 | ;; \ | ||
420 | st4 [r30] = r31; \ | ||
421 | movl r30 = XSI_BANK1_R16; \ | ||
422 | movl r31 = XSI_BANK1_R16+8; \ | ||
423 | ;; \ | ||
424 | ld8.fill r16 = [r30], 16; \ | ||
425 | ld8.fill r17 = [r31], 16; \ | ||
426 | ;; \ | ||
427 | ld8.fill r18 = [r30], 16; \ | ||
428 | ld8.fill r19 = [r31], 16; \ | ||
429 | ;; \ | ||
430 | ld8.fill r20 = [r30], 16; \ | ||
431 | ld8.fill r21 = [r31], 16; \ | ||
432 | ;; \ | ||
433 | ld8.fill r22 = [r30], 16; \ | ||
434 | ld8.fill r23 = [r31], 16; \ | ||
435 | ;; \ | ||
436 | ld8.fill r24 = [r30], 16; \ | ||
437 | ld8.fill r25 = [r31], 16; \ | ||
438 | ;; \ | ||
439 | ld8.fill r26 = [r30], 16; \ | ||
440 | ld8.fill r27 = [r31], 16; \ | ||
441 | ;; \ | ||
442 | ld8.fill r28 = [r30], 16; \ | ||
443 | ld8.fill r29 = [r31], 16; \ | ||
444 | ;; \ | ||
445 | ld8.fill r30 = [r30]; \ | ||
446 | ld8.fill r31 = [r31]; \ | ||
447 | ;; \ | ||
448 | mov ar.unat = clob | ||
449 | |||
450 | #define BSW_1(clob0, clob1) XEN_BSW_1(clob1) | ||
451 | |||
452 | |||
453 | #define COVER \ | ||
454 | XEN_HYPER_COVER | ||
455 | |||
456 | #define RFI \ | ||
457 | XEN_HYPER_RFI; \ | ||
458 | dv_serialize_data | ||
diff --git a/arch/ia64/include/asm/xen/interface.h b/arch/ia64/include/asm/xen/interface.h new file mode 100644 index 000000000000..f00fab40854d --- /dev/null +++ b/arch/ia64/include/asm/xen/interface.h | |||
@@ -0,0 +1,346 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch-ia64/hypervisor-if.h | ||
3 | * | ||
4 | * Guest OS interface to IA64 Xen. | ||
5 | * | ||
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
7 | * of this software and associated documentation files (the "Software"), to | ||
8 | * deal in the Software without restriction, including without limitation the | ||
9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or | ||
10 | * sell copies of the Software, and to permit persons to whom the Software is | ||
11 | * furnished to do so, subject to the following conditions: | ||
12 | * | ||
13 | * The above copyright notice and this permission notice shall be included in | ||
14 | * all copies or substantial portions of the Software. | ||
15 | * | ||
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
22 | * DEALINGS IN THE SOFTWARE. | ||
23 | * | ||
24 | * Copyright by those who contributed. (in alphabetical order) | ||
25 | * | ||
26 | * Anthony Xu <anthony.xu@intel.com> | ||
27 | * Eddie Dong <eddie.dong@intel.com> | ||
28 | * Fred Yang <fred.yang@intel.com> | ||
29 | * Kevin Tian <kevin.tian@intel.com> | ||
30 | * Alex Williamson <alex.williamson@hp.com> | ||
31 | * Chris Wright <chrisw@sous-sol.org> | ||
32 | * Christian Limpach <Christian.Limpach@cl.cam.ac.uk> | ||
33 | * Dietmar Hahn <dietmar.hahn@fujitsu-siemens.com> | ||
34 | * Hollis Blanchard <hollisb@us.ibm.com> | ||
35 | * Isaku Yamahata <yamahata@valinux.co.jp> | ||
36 | * Jan Beulich <jbeulich@novell.com> | ||
37 | * John Levon <john.levon@sun.com> | ||
38 | * Kazuhiro Suzuki <kaz@jp.fujitsu.com> | ||
39 | * Keir Fraser <keir.fraser@citrix.com> | ||
40 | * Kouya Shimura <kouya@jp.fujitsu.com> | ||
41 | * Masaki Kanno <kanno.masaki@jp.fujitsu.com> | ||
42 | * Matt Chapman <matthewc@hp.com> | ||
43 | * Matthew Chapman <matthewc@hp.com> | ||
44 | * Samuel Thibault <samuel.thibault@eu.citrix.com> | ||
45 | * Tomonari Horikoshi <t.horikoshi@jp.fujitsu.com> | ||
46 | * Tristan Gingold <tgingold@free.fr> | ||
47 | * Tsunehisa Doi <Doi.Tsunehisa@jp.fujitsu.com> | ||
48 | * Yutaka Ezaki <yutaka.ezaki@jp.fujitsu.com> | ||
49 | * Zhang Xin <xing.z.zhang@intel.com> | ||
50 | * Zhang xiantao <xiantao.zhang@intel.com> | ||
51 | * dan.magenheimer@hp.com | ||
52 | * ian.pratt@cl.cam.ac.uk | ||
53 | * michael.fetterman@cl.cam.ac.uk | ||
54 | */ | ||
55 | |||
56 | #ifndef _ASM_IA64_XEN_INTERFACE_H | ||
57 | #define _ASM_IA64_XEN_INTERFACE_H | ||
58 | |||
59 | #define __DEFINE_GUEST_HANDLE(name, type) \ | ||
60 | typedef struct { type *p; } __guest_handle_ ## name | ||
61 | |||
62 | #define DEFINE_GUEST_HANDLE_STRUCT(name) \ | ||
63 | __DEFINE_GUEST_HANDLE(name, struct name) | ||
64 | #define DEFINE_GUEST_HANDLE(name) __DEFINE_GUEST_HANDLE(name, name) | ||
65 | #define GUEST_HANDLE(name) __guest_handle_ ## name | ||
66 | #define GUEST_HANDLE_64(name) GUEST_HANDLE(name) | ||
67 | #define set_xen_guest_handle(hnd, val) do { (hnd).p = val; } while (0) | ||
68 | |||
69 | #ifndef __ASSEMBLY__ | ||
70 | /* Guest handles for primitive C types. */ | ||
71 | __DEFINE_GUEST_HANDLE(uchar, unsigned char); | ||
72 | __DEFINE_GUEST_HANDLE(uint, unsigned int); | ||
73 | __DEFINE_GUEST_HANDLE(ulong, unsigned long); | ||
74 | __DEFINE_GUEST_HANDLE(u64, unsigned long); | ||
75 | DEFINE_GUEST_HANDLE(char); | ||
76 | DEFINE_GUEST_HANDLE(int); | ||
77 | DEFINE_GUEST_HANDLE(long); | ||
78 | DEFINE_GUEST_HANDLE(void); | ||
79 | |||
80 | typedef unsigned long xen_pfn_t; | ||
81 | DEFINE_GUEST_HANDLE(xen_pfn_t); | ||
82 | #define PRI_xen_pfn "lx" | ||
83 | #endif | ||
84 | |||
85 | /* Arch specific VIRQs definition */ | ||
86 | #define VIRQ_ITC VIRQ_ARCH_0 /* V. Virtual itc timer */ | ||
87 | #define VIRQ_MCA_CMC VIRQ_ARCH_1 /* MCA cmc interrupt */ | ||
88 | #define VIRQ_MCA_CPE VIRQ_ARCH_2 /* MCA cpe interrupt */ | ||
89 | |||
90 | /* Maximum number of virtual CPUs in multi-processor guests. */ | ||
91 | /* keep sizeof(struct shared_page) <= PAGE_SIZE. | ||
92 | * this is checked in arch/ia64/xen/hypervisor.c. */ | ||
93 | #define MAX_VIRT_CPUS 64 | ||
94 | |||
95 | #ifndef __ASSEMBLY__ | ||
96 | |||
97 | #define INVALID_MFN (~0UL) | ||
98 | |||
99 | union vac { | ||
100 | unsigned long value; | ||
101 | struct { | ||
102 | int a_int:1; | ||
103 | int a_from_int_cr:1; | ||
104 | int a_to_int_cr:1; | ||
105 | int a_from_psr:1; | ||
106 | int a_from_cpuid:1; | ||
107 | int a_cover:1; | ||
108 | int a_bsw:1; | ||
109 | long reserved:57; | ||
110 | }; | ||
111 | }; | ||
112 | |||
113 | union vdc { | ||
114 | unsigned long value; | ||
115 | struct { | ||
116 | int d_vmsw:1; | ||
117 | int d_extint:1; | ||
118 | int d_ibr_dbr:1; | ||
119 | int d_pmc:1; | ||
120 | int d_to_pmd:1; | ||
121 | int d_itm:1; | ||
122 | long reserved:58; | ||
123 | }; | ||
124 | }; | ||
125 | |||
126 | struct mapped_regs { | ||
127 | union vac vac; | ||
128 | union vdc vdc; | ||
129 | unsigned long virt_env_vaddr; | ||
130 | unsigned long reserved1[29]; | ||
131 | unsigned long vhpi; | ||
132 | unsigned long reserved2[95]; | ||
133 | union { | ||
134 | unsigned long vgr[16]; | ||
135 | unsigned long bank1_regs[16]; /* bank1 regs (r16-r31) | ||
136 | when bank0 active */ | ||
137 | }; | ||
138 | union { | ||
139 | unsigned long vbgr[16]; | ||
140 | unsigned long bank0_regs[16]; /* bank0 regs (r16-r31) | ||
141 | when bank1 active */ | ||
142 | }; | ||
143 | unsigned long vnat; | ||
144 | unsigned long vbnat; | ||
145 | unsigned long vcpuid[5]; | ||
146 | unsigned long reserved3[11]; | ||
147 | unsigned long vpsr; | ||
148 | unsigned long vpr; | ||
149 | unsigned long reserved4[76]; | ||
150 | union { | ||
151 | unsigned long vcr[128]; | ||
152 | struct { | ||
153 | unsigned long dcr; /* CR0 */ | ||
154 | unsigned long itm; | ||
155 | unsigned long iva; | ||
156 | unsigned long rsv1[5]; | ||
157 | unsigned long pta; /* CR8 */ | ||
158 | unsigned long rsv2[7]; | ||
159 | unsigned long ipsr; /* CR16 */ | ||
160 | unsigned long isr; | ||
161 | unsigned long rsv3; | ||
162 | unsigned long iip; | ||
163 | unsigned long ifa; | ||
164 | unsigned long itir; | ||
165 | unsigned long iipa; | ||
166 | unsigned long ifs; | ||
167 | unsigned long iim; /* CR24 */ | ||
168 | unsigned long iha; | ||
169 | unsigned long rsv4[38]; | ||
170 | unsigned long lid; /* CR64 */ | ||
171 | unsigned long ivr; | ||
172 | unsigned long tpr; | ||
173 | unsigned long eoi; | ||
174 | unsigned long irr[4]; | ||
175 | unsigned long itv; /* CR72 */ | ||
176 | unsigned long pmv; | ||
177 | unsigned long cmcv; | ||
178 | unsigned long rsv5[5]; | ||
179 | unsigned long lrr0; /* CR80 */ | ||
180 | unsigned long lrr1; | ||
181 | unsigned long rsv6[46]; | ||
182 | }; | ||
183 | }; | ||
184 | union { | ||
185 | unsigned long reserved5[128]; | ||
186 | struct { | ||
187 | unsigned long precover_ifs; | ||
188 | unsigned long unat; /* not sure if this is needed | ||
189 | until NaT arch is done */ | ||
190 | int interrupt_collection_enabled; /* virtual psr.ic */ | ||
191 | |||
192 | /* virtual interrupt deliverable flag is | ||
193 | * evtchn_upcall_mask in shared info area now. | ||
194 | * interrupt_mask_addr is the address | ||
195 | * of evtchn_upcall_mask for current vcpu | ||
196 | */ | ||
197 | unsigned char *interrupt_mask_addr; | ||
198 | int pending_interruption; | ||
199 | unsigned char vpsr_pp; | ||
200 | unsigned char vpsr_dfh; | ||
201 | unsigned char hpsr_dfh; | ||
202 | unsigned char hpsr_mfh; | ||
203 | unsigned long reserved5_1[4]; | ||
204 | int metaphysical_mode; /* 1 = use metaphys mapping | ||
205 | 0 = use virtual */ | ||
206 | int banknum; /* 0 or 1, which virtual | ||
207 | register bank is active */ | ||
208 | unsigned long rrs[8]; /* region registers */ | ||
209 | unsigned long krs[8]; /* kernel registers */ | ||
210 | unsigned long tmp[16]; /* temp registers | ||
211 | (e.g. for hyperprivops) */ | ||
212 | }; | ||
213 | }; | ||
214 | }; | ||
215 | |||
216 | struct arch_vcpu_info { | ||
217 | /* nothing */ | ||
218 | }; | ||
219 | |||
220 | /* | ||
221 | * This structure is used for magic page in domain pseudo physical address | ||
222 | * space and the result of XENMEM_machine_memory_map. | ||
223 | * As the XENMEM_machine_memory_map result, | ||
224 | * xen_memory_map::nr_entries indicates the size in bytes | ||
225 | * including struct xen_ia64_memmap_info. Not the number of entries. | ||
226 | */ | ||
227 | struct xen_ia64_memmap_info { | ||
228 | uint64_t efi_memmap_size; /* size of EFI memory map */ | ||
229 | uint64_t efi_memdesc_size; /* size of an EFI memory map | ||
230 | * descriptor */ | ||
231 | uint32_t efi_memdesc_version; /* memory descriptor version */ | ||
232 | void *memdesc[0]; /* array of efi_memory_desc_t */ | ||
233 | }; | ||
234 | |||
235 | struct arch_shared_info { | ||
236 | /* PFN of the start_info page. */ | ||
237 | unsigned long start_info_pfn; | ||
238 | |||
239 | /* Interrupt vector for event channel. */ | ||
240 | int evtchn_vector; | ||
241 | |||
242 | /* PFN of memmap_info page */ | ||
243 | unsigned int memmap_info_num_pages; /* currently only = 1 case is | ||
244 | supported. */ | ||
245 | unsigned long memmap_info_pfn; | ||
246 | |||
247 | uint64_t pad[31]; | ||
248 | }; | ||
249 | |||
250 | struct xen_callback { | ||
251 | unsigned long ip; | ||
252 | }; | ||
253 | typedef struct xen_callback xen_callback_t; | ||
254 | |||
255 | #endif /* !__ASSEMBLY__ */ | ||
256 | |||
257 | /* Size of the shared_info area (this is not related to page size). */ | ||
258 | #define XSI_SHIFT 14 | ||
259 | #define XSI_SIZE (1 << XSI_SHIFT) | ||
260 | /* Log size of mapped_regs area (64 KB - only 4KB is used). */ | ||
261 | #define XMAPPEDREGS_SHIFT 12 | ||
262 | #define XMAPPEDREGS_SIZE (1 << XMAPPEDREGS_SHIFT) | ||
263 | /* Offset of XASI (Xen arch shared info) wrt XSI_BASE. */ | ||
264 | #define XMAPPEDREGS_OFS XSI_SIZE | ||
265 | |||
266 | /* Hyperprivops. */ | ||
267 | #define HYPERPRIVOP_START 0x1 | ||
268 | #define HYPERPRIVOP_RFI (HYPERPRIVOP_START + 0x0) | ||
269 | #define HYPERPRIVOP_RSM_DT (HYPERPRIVOP_START + 0x1) | ||
270 | #define HYPERPRIVOP_SSM_DT (HYPERPRIVOP_START + 0x2) | ||
271 | #define HYPERPRIVOP_COVER (HYPERPRIVOP_START + 0x3) | ||
272 | #define HYPERPRIVOP_ITC_D (HYPERPRIVOP_START + 0x4) | ||
273 | #define HYPERPRIVOP_ITC_I (HYPERPRIVOP_START + 0x5) | ||
274 | #define HYPERPRIVOP_SSM_I (HYPERPRIVOP_START + 0x6) | ||
275 | #define HYPERPRIVOP_GET_IVR (HYPERPRIVOP_START + 0x7) | ||
276 | #define HYPERPRIVOP_GET_TPR (HYPERPRIVOP_START + 0x8) | ||
277 | #define HYPERPRIVOP_SET_TPR (HYPERPRIVOP_START + 0x9) | ||
278 | #define HYPERPRIVOP_EOI (HYPERPRIVOP_START + 0xa) | ||
279 | #define HYPERPRIVOP_SET_ITM (HYPERPRIVOP_START + 0xb) | ||
280 | #define HYPERPRIVOP_THASH (HYPERPRIVOP_START + 0xc) | ||
281 | #define HYPERPRIVOP_PTC_GA (HYPERPRIVOP_START + 0xd) | ||
282 | #define HYPERPRIVOP_ITR_D (HYPERPRIVOP_START + 0xe) | ||
283 | #define HYPERPRIVOP_GET_RR (HYPERPRIVOP_START + 0xf) | ||
284 | #define HYPERPRIVOP_SET_RR (HYPERPRIVOP_START + 0x10) | ||
285 | #define HYPERPRIVOP_SET_KR (HYPERPRIVOP_START + 0x11) | ||
286 | #define HYPERPRIVOP_FC (HYPERPRIVOP_START + 0x12) | ||
287 | #define HYPERPRIVOP_GET_CPUID (HYPERPRIVOP_START + 0x13) | ||
288 | #define HYPERPRIVOP_GET_PMD (HYPERPRIVOP_START + 0x14) | ||
289 | #define HYPERPRIVOP_GET_EFLAG (HYPERPRIVOP_START + 0x15) | ||
290 | #define HYPERPRIVOP_SET_EFLAG (HYPERPRIVOP_START + 0x16) | ||
291 | #define HYPERPRIVOP_RSM_BE (HYPERPRIVOP_START + 0x17) | ||
292 | #define HYPERPRIVOP_GET_PSR (HYPERPRIVOP_START + 0x18) | ||
293 | #define HYPERPRIVOP_SET_RR0_TO_RR4 (HYPERPRIVOP_START + 0x19) | ||
294 | #define HYPERPRIVOP_MAX (0x1a) | ||
295 | |||
296 | /* Fast and light hypercalls. */ | ||
297 | #define __HYPERVISOR_ia64_fast_eoi __HYPERVISOR_arch_1 | ||
298 | |||
299 | /* Xencomm macros. */ | ||
300 | #define XENCOMM_INLINE_MASK 0xf800000000000000UL | ||
301 | #define XENCOMM_INLINE_FLAG 0x8000000000000000UL | ||
302 | |||
303 | #ifndef __ASSEMBLY__ | ||
304 | |||
305 | /* | ||
306 | * Optimization features. | ||
307 | * The hypervisor may do some special optimizations for guests. This hypercall | ||
308 | * can be used to switch on/of these special optimizations. | ||
309 | */ | ||
310 | #define __HYPERVISOR_opt_feature 0x700UL | ||
311 | |||
312 | #define XEN_IA64_OPTF_OFF 0x0 | ||
313 | #define XEN_IA64_OPTF_ON 0x1 | ||
314 | |||
315 | /* | ||
316 | * If this feature is switched on, the hypervisor inserts the | ||
317 | * tlb entries without calling the guests traphandler. | ||
318 | * This is useful in guests using region 7 for identity mapping | ||
319 | * like the linux kernel does. | ||
320 | */ | ||
321 | #define XEN_IA64_OPTF_IDENT_MAP_REG7 1 | ||
322 | |||
323 | /* Identity mapping of region 4 addresses in HVM. */ | ||
324 | #define XEN_IA64_OPTF_IDENT_MAP_REG4 2 | ||
325 | |||
326 | /* Identity mapping of region 5 addresses in HVM. */ | ||
327 | #define XEN_IA64_OPTF_IDENT_MAP_REG5 3 | ||
328 | |||
329 | #define XEN_IA64_OPTF_IDENT_MAP_NOT_SET (0) | ||
330 | |||
331 | struct xen_ia64_opt_feature { | ||
332 | unsigned long cmd; /* Which feature */ | ||
333 | unsigned char on; /* Switch feature on/off */ | ||
334 | union { | ||
335 | struct { | ||
336 | /* The page protection bit mask of the pte. | ||
337 | * This will be or'ed with the pte. */ | ||
338 | unsigned long pgprot; | ||
339 | unsigned long key; /* A protection key for itir.*/ | ||
340 | }; | ||
341 | }; | ||
342 | }; | ||
343 | |||
344 | #endif /* __ASSEMBLY__ */ | ||
345 | |||
346 | #endif /* _ASM_IA64_XEN_INTERFACE_H */ | ||
diff --git a/arch/ia64/include/asm/xen/irq.h b/arch/ia64/include/asm/xen/irq.h new file mode 100644 index 000000000000..a90450983003 --- /dev/null +++ b/arch/ia64/include/asm/xen/irq.h | |||
@@ -0,0 +1,44 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/include/asm/xen/irq.h | ||
3 | * | ||
4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | |||
23 | #ifndef _ASM_IA64_XEN_IRQ_H | ||
24 | #define _ASM_IA64_XEN_IRQ_H | ||
25 | |||
26 | /* | ||
27 | * The flat IRQ space is divided into two regions: | ||
28 | * 1. A one-to-one mapping of real physical IRQs. This space is only used | ||
29 | * if we have physical device-access privilege. This region is at the | ||
30 | * start of the IRQ space so that existing device drivers do not need | ||
31 | * to be modified to translate physical IRQ numbers into our IRQ space. | ||
32 | * 3. A dynamic mapping of inter-domain and Xen-sourced virtual IRQs. These | ||
33 | * are bound using the provided bind/unbind functions. | ||
34 | */ | ||
35 | |||
36 | #define XEN_PIRQ_BASE 0 | ||
37 | #define XEN_NR_PIRQS 256 | ||
38 | |||
39 | #define XEN_DYNIRQ_BASE (XEN_PIRQ_BASE + XEN_NR_PIRQS) | ||
40 | #define XEN_NR_DYNIRQS (NR_CPUS * 8) | ||
41 | |||
42 | #define XEN_NR_IRQS (XEN_NR_PIRQS + XEN_NR_DYNIRQS) | ||
43 | |||
44 | #endif /* _ASM_IA64_XEN_IRQ_H */ | ||
diff --git a/arch/ia64/include/asm/xen/minstate.h b/arch/ia64/include/asm/xen/minstate.h new file mode 100644 index 000000000000..4d92d9bbda7b --- /dev/null +++ b/arch/ia64/include/asm/xen/minstate.h | |||
@@ -0,0 +1,134 @@ | |||
1 | /* | ||
2 | * DO_SAVE_MIN switches to the kernel stacks (if necessary) and saves | ||
3 | * the minimum state necessary that allows us to turn psr.ic back | ||
4 | * on. | ||
5 | * | ||
6 | * Assumed state upon entry: | ||
7 | * psr.ic: off | ||
8 | * r31: contains saved predicates (pr) | ||
9 | * | ||
10 | * Upon exit, the state is as follows: | ||
11 | * psr.ic: off | ||
12 | * r2 = points to &pt_regs.r16 | ||
13 | * r8 = contents of ar.ccv | ||
14 | * r9 = contents of ar.csd | ||
15 | * r10 = contents of ar.ssd | ||
16 | * r11 = FPSR_DEFAULT | ||
17 | * r12 = kernel sp (kernel virtual address) | ||
18 | * r13 = points to current task_struct (kernel virtual address) | ||
19 | * p15 = TRUE if psr.i is set in cr.ipsr | ||
20 | * predicate registers (other than p2, p3, and p15), b6, r3, r14, r15: | ||
21 | * preserved | ||
22 | * CONFIG_XEN note: p6/p7 are not preserved | ||
23 | * | ||
24 | * Note that psr.ic is NOT turned on by this macro. This is so that | ||
25 | * we can pass interruption state as arguments to a handler. | ||
26 | */ | ||
27 | #define XEN_DO_SAVE_MIN(__COVER,SAVE_IFS,EXTRA,WORKAROUND) \ | ||
28 | mov r16=IA64_KR(CURRENT); /* M */ \ | ||
29 | mov r27=ar.rsc; /* M */ \ | ||
30 | mov r20=r1; /* A */ \ | ||
31 | mov r25=ar.unat; /* M */ \ | ||
32 | MOV_FROM_IPSR(p0,r29); /* M */ \ | ||
33 | MOV_FROM_IIP(r28); /* M */ \ | ||
34 | mov r21=ar.fpsr; /* M */ \ | ||
35 | mov r26=ar.pfs; /* I */ \ | ||
36 | __COVER; /* B;; (or nothing) */ \ | ||
37 | adds r16=IA64_TASK_THREAD_ON_USTACK_OFFSET,r16; \ | ||
38 | ;; \ | ||
39 | ld1 r17=[r16]; /* load current->thread.on_ustack flag */ \ | ||
40 | st1 [r16]=r0; /* clear current->thread.on_ustack flag */ \ | ||
41 | adds r1=-IA64_TASK_THREAD_ON_USTACK_OFFSET,r16 \ | ||
42 | /* switch from user to kernel RBS: */ \ | ||
43 | ;; \ | ||
44 | invala; /* M */ \ | ||
45 | /* SAVE_IFS;*/ /* see xen special handling below */ \ | ||
46 | cmp.eq pKStk,pUStk=r0,r17; /* are we in kernel mode already? */ \ | ||
47 | ;; \ | ||
48 | (pUStk) mov ar.rsc=0; /* set enforced lazy mode, pl 0, little-endian, loadrs=0 */ \ | ||
49 | ;; \ | ||
50 | (pUStk) mov.m r24=ar.rnat; \ | ||
51 | (pUStk) addl r22=IA64_RBS_OFFSET,r1; /* compute base of RBS */ \ | ||
52 | (pKStk) mov r1=sp; /* get sp */ \ | ||
53 | ;; \ | ||
54 | (pUStk) lfetch.fault.excl.nt1 [r22]; \ | ||
55 | (pUStk) addl r1=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r1; /* compute base of memory stack */ \ | ||
56 | (pUStk) mov r23=ar.bspstore; /* save ar.bspstore */ \ | ||
57 | ;; \ | ||
58 | (pUStk) mov ar.bspstore=r22; /* switch to kernel RBS */ \ | ||
59 | (pKStk) addl r1=-IA64_PT_REGS_SIZE,r1; /* if in kernel mode, use sp (r12) */ \ | ||
60 | ;; \ | ||
61 | (pUStk) mov r18=ar.bsp; \ | ||
62 | (pUStk) mov ar.rsc=0x3; /* set eager mode, pl 0, little-endian, loadrs=0 */ \ | ||
63 | adds r17=2*L1_CACHE_BYTES,r1; /* really: biggest cache-line size */ \ | ||
64 | adds r16=PT(CR_IPSR),r1; \ | ||
65 | ;; \ | ||
66 | lfetch.fault.excl.nt1 [r17],L1_CACHE_BYTES; \ | ||
67 | st8 [r16]=r29; /* save cr.ipsr */ \ | ||
68 | ;; \ | ||
69 | lfetch.fault.excl.nt1 [r17]; \ | ||
70 | tbit.nz p15,p0=r29,IA64_PSR_I_BIT; \ | ||
71 | mov r29=b0 \ | ||
72 | ;; \ | ||
73 | WORKAROUND; \ | ||
74 | adds r16=PT(R8),r1; /* initialize first base pointer */ \ | ||
75 | adds r17=PT(R9),r1; /* initialize second base pointer */ \ | ||
76 | (pKStk) mov r18=r0; /* make sure r18 isn't NaT */ \ | ||
77 | ;; \ | ||
78 | .mem.offset 0,0; st8.spill [r16]=r8,16; \ | ||
79 | .mem.offset 8,0; st8.spill [r17]=r9,16; \ | ||
80 | ;; \ | ||
81 | .mem.offset 0,0; st8.spill [r16]=r10,24; \ | ||
82 | movl r8=XSI_PRECOVER_IFS; \ | ||
83 | .mem.offset 8,0; st8.spill [r17]=r11,24; \ | ||
84 | ;; \ | ||
85 | /* xen special handling for possibly lazy cover */ \ | ||
86 | /* SAVE_MIN case in dispatch_ia32_handler: mov r30=r0 */ \ | ||
87 | ld8 r30=[r8]; \ | ||
88 | (pUStk) sub r18=r18,r22; /* r18=RSE.ndirty*8 */ \ | ||
89 | st8 [r16]=r28,16; /* save cr.iip */ \ | ||
90 | ;; \ | ||
91 | st8 [r17]=r30,16; /* save cr.ifs */ \ | ||
92 | mov r8=ar.ccv; \ | ||
93 | mov r9=ar.csd; \ | ||
94 | mov r10=ar.ssd; \ | ||
95 | movl r11=FPSR_DEFAULT; /* L-unit */ \ | ||
96 | ;; \ | ||
97 | st8 [r16]=r25,16; /* save ar.unat */ \ | ||
98 | st8 [r17]=r26,16; /* save ar.pfs */ \ | ||
99 | shl r18=r18,16; /* compute ar.rsc to be used for "loadrs" */ \ | ||
100 | ;; \ | ||
101 | st8 [r16]=r27,16; /* save ar.rsc */ \ | ||
102 | (pUStk) st8 [r17]=r24,16; /* save ar.rnat */ \ | ||
103 | (pKStk) adds r17=16,r17; /* skip over ar_rnat field */ \ | ||
104 | ;; /* avoid RAW on r16 & r17 */ \ | ||
105 | (pUStk) st8 [r16]=r23,16; /* save ar.bspstore */ \ | ||
106 | st8 [r17]=r31,16; /* save predicates */ \ | ||
107 | (pKStk) adds r16=16,r16; /* skip over ar_bspstore field */ \ | ||
108 | ;; \ | ||
109 | st8 [r16]=r29,16; /* save b0 */ \ | ||
110 | st8 [r17]=r18,16; /* save ar.rsc value for "loadrs" */ \ | ||
111 | cmp.eq pNonSys,pSys=r0,r0 /* initialize pSys=0, pNonSys=1 */ \ | ||
112 | ;; \ | ||
113 | .mem.offset 0,0; st8.spill [r16]=r20,16; /* save original r1 */ \ | ||
114 | .mem.offset 8,0; st8.spill [r17]=r12,16; \ | ||
115 | adds r12=-16,r1; /* switch to kernel memory stack (with 16 bytes of scratch) */ \ | ||
116 | ;; \ | ||
117 | .mem.offset 0,0; st8.spill [r16]=r13,16; \ | ||
118 | .mem.offset 8,0; st8.spill [r17]=r21,16; /* save ar.fpsr */ \ | ||
119 | mov r13=IA64_KR(CURRENT); /* establish `current' */ \ | ||
120 | ;; \ | ||
121 | .mem.offset 0,0; st8.spill [r16]=r15,16; \ | ||
122 | .mem.offset 8,0; st8.spill [r17]=r14,16; \ | ||
123 | ;; \ | ||
124 | .mem.offset 0,0; st8.spill [r16]=r2,16; \ | ||
125 | .mem.offset 8,0; st8.spill [r17]=r3,16; \ | ||
126 | ACCOUNT_GET_STAMP \ | ||
127 | adds r2=IA64_PT_REGS_R16_OFFSET,r1; \ | ||
128 | ;; \ | ||
129 | EXTRA; \ | ||
130 | movl r1=__gp; /* establish kernel global pointer */ \ | ||
131 | ;; \ | ||
132 | ACCOUNT_SYS_ENTER \ | ||
133 | BSW_1(r3,r14); /* switch back to bank 1 (must be last in insn group) */ \ | ||
134 | ;; | ||
diff --git a/arch/ia64/include/asm/xen/page.h b/arch/ia64/include/asm/xen/page.h new file mode 100644 index 000000000000..03441a780b5b --- /dev/null +++ b/arch/ia64/include/asm/xen/page.h | |||
@@ -0,0 +1,65 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/include/asm/xen/page.h | ||
3 | * | ||
4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | |||
23 | #ifndef _ASM_IA64_XEN_PAGE_H | ||
24 | #define _ASM_IA64_XEN_PAGE_H | ||
25 | |||
26 | #define INVALID_P2M_ENTRY (~0UL) | ||
27 | |||
28 | static inline unsigned long mfn_to_pfn(unsigned long mfn) | ||
29 | { | ||
30 | return mfn; | ||
31 | } | ||
32 | |||
33 | static inline unsigned long pfn_to_mfn(unsigned long pfn) | ||
34 | { | ||
35 | return pfn; | ||
36 | } | ||
37 | |||
38 | #define phys_to_machine_mapping_valid(_x) (1) | ||
39 | |||
40 | static inline void *mfn_to_virt(unsigned long mfn) | ||
41 | { | ||
42 | return __va(mfn << PAGE_SHIFT); | ||
43 | } | ||
44 | |||
45 | static inline unsigned long virt_to_mfn(void *virt) | ||
46 | { | ||
47 | return __pa(virt) >> PAGE_SHIFT; | ||
48 | } | ||
49 | |||
50 | /* for tpmfront.c */ | ||
51 | static inline unsigned long virt_to_machine(void *virt) | ||
52 | { | ||
53 | return __pa(virt); | ||
54 | } | ||
55 | |||
56 | static inline void set_phys_to_machine(unsigned long pfn, unsigned long mfn) | ||
57 | { | ||
58 | /* nothing */ | ||
59 | } | ||
60 | |||
61 | #define pte_mfn(_x) pte_pfn(_x) | ||
62 | #define mfn_pte(_x, _y) __pte_ma(0) /* unmodified use */ | ||
63 | #define __pte_ma(_x) ((pte_t) {(_x)}) /* unmodified use */ | ||
64 | |||
65 | #endif /* _ASM_IA64_XEN_PAGE_H */ | ||
diff --git a/arch/ia64/include/asm/xen/privop.h b/arch/ia64/include/asm/xen/privop.h new file mode 100644 index 000000000000..71ec7546e100 --- /dev/null +++ b/arch/ia64/include/asm/xen/privop.h | |||
@@ -0,0 +1,129 @@ | |||
1 | #ifndef _ASM_IA64_XEN_PRIVOP_H | ||
2 | #define _ASM_IA64_XEN_PRIVOP_H | ||
3 | |||
4 | /* | ||
5 | * Copyright (C) 2005 Hewlett-Packard Co | ||
6 | * Dan Magenheimer <dan.magenheimer@hp.com> | ||
7 | * | ||
8 | * Paravirtualizations of privileged operations for Xen/ia64 | ||
9 | * | ||
10 | * | ||
11 | * inline privop and paravirt_alt support | ||
12 | * Copyright (c) 2007 Isaku Yamahata <yamahata at valinux co jp> | ||
13 | * VA Linux Systems Japan K.K. | ||
14 | * | ||
15 | */ | ||
16 | |||
17 | #ifndef __ASSEMBLY__ | ||
18 | #include <linux/types.h> /* arch-ia64.h requires uint64_t */ | ||
19 | #endif | ||
20 | #include <asm/xen/interface.h> | ||
21 | |||
22 | /* At 1 MB, before per-cpu space but still addressable using addl instead | ||
23 | of movl. */ | ||
24 | #define XSI_BASE 0xfffffffffff00000 | ||
25 | |||
26 | /* Address of mapped regs. */ | ||
27 | #define XMAPPEDREGS_BASE (XSI_BASE + XSI_SIZE) | ||
28 | |||
29 | #ifdef __ASSEMBLY__ | ||
30 | #define XEN_HYPER_RFI break HYPERPRIVOP_RFI | ||
31 | #define XEN_HYPER_RSM_PSR_DT break HYPERPRIVOP_RSM_DT | ||
32 | #define XEN_HYPER_SSM_PSR_DT break HYPERPRIVOP_SSM_DT | ||
33 | #define XEN_HYPER_COVER break HYPERPRIVOP_COVER | ||
34 | #define XEN_HYPER_ITC_D break HYPERPRIVOP_ITC_D | ||
35 | #define XEN_HYPER_ITC_I break HYPERPRIVOP_ITC_I | ||
36 | #define XEN_HYPER_SSM_I break HYPERPRIVOP_SSM_I | ||
37 | #define XEN_HYPER_GET_IVR break HYPERPRIVOP_GET_IVR | ||
38 | #define XEN_HYPER_THASH break HYPERPRIVOP_THASH | ||
39 | #define XEN_HYPER_ITR_D break HYPERPRIVOP_ITR_D | ||
40 | #define XEN_HYPER_SET_KR break HYPERPRIVOP_SET_KR | ||
41 | #define XEN_HYPER_GET_PSR break HYPERPRIVOP_GET_PSR | ||
42 | #define XEN_HYPER_SET_RR0_TO_RR4 break HYPERPRIVOP_SET_RR0_TO_RR4 | ||
43 | |||
44 | #define XSI_IFS (XSI_BASE + XSI_IFS_OFS) | ||
45 | #define XSI_PRECOVER_IFS (XSI_BASE + XSI_PRECOVER_IFS_OFS) | ||
46 | #define XSI_IFA (XSI_BASE + XSI_IFA_OFS) | ||
47 | #define XSI_ISR (XSI_BASE + XSI_ISR_OFS) | ||
48 | #define XSI_IIM (XSI_BASE + XSI_IIM_OFS) | ||
49 | #define XSI_ITIR (XSI_BASE + XSI_ITIR_OFS) | ||
50 | #define XSI_PSR_I_ADDR (XSI_BASE + XSI_PSR_I_ADDR_OFS) | ||
51 | #define XSI_PSR_IC (XSI_BASE + XSI_PSR_IC_OFS) | ||
52 | #define XSI_IPSR (XSI_BASE + XSI_IPSR_OFS) | ||
53 | #define XSI_IIP (XSI_BASE + XSI_IIP_OFS) | ||
54 | #define XSI_B1NAT (XSI_BASE + XSI_B1NATS_OFS) | ||
55 | #define XSI_BANK1_R16 (XSI_BASE + XSI_BANK1_R16_OFS) | ||
56 | #define XSI_BANKNUM (XSI_BASE + XSI_BANKNUM_OFS) | ||
57 | #define XSI_IHA (XSI_BASE + XSI_IHA_OFS) | ||
58 | #endif | ||
59 | |||
60 | #ifndef __ASSEMBLY__ | ||
61 | |||
62 | /************************************************/ | ||
63 | /* Instructions paravirtualized for correctness */ | ||
64 | /************************************************/ | ||
65 | |||
66 | /* "fc" and "thash" are privilege-sensitive instructions, meaning they | ||
67 | * may have different semantics depending on whether they are executed | ||
68 | * at PL0 vs PL!=0. When paravirtualized, these instructions mustn't | ||
69 | * be allowed to execute directly, lest incorrect semantics result. */ | ||
70 | extern void xen_fc(unsigned long addr); | ||
71 | extern unsigned long xen_thash(unsigned long addr); | ||
72 | |||
73 | /* Note that "ttag" and "cover" are also privilege-sensitive; "ttag" | ||
74 | * is not currently used (though it may be in a long-format VHPT system!) | ||
75 | * and the semantics of cover only change if psr.ic is off which is very | ||
76 | * rare (and currently non-existent outside of assembly code */ | ||
77 | |||
78 | /* There are also privilege-sensitive registers. These registers are | ||
79 | * readable at any privilege level but only writable at PL0. */ | ||
80 | extern unsigned long xen_get_cpuid(int index); | ||
81 | extern unsigned long xen_get_pmd(int index); | ||
82 | |||
83 | extern unsigned long xen_get_eflag(void); /* see xen_ia64_getreg */ | ||
84 | extern void xen_set_eflag(unsigned long); /* see xen_ia64_setreg */ | ||
85 | |||
86 | /************************************************/ | ||
87 | /* Instructions paravirtualized for performance */ | ||
88 | /************************************************/ | ||
89 | |||
90 | /* Xen uses memory-mapped virtual privileged registers for access to many | ||
91 | * performance-sensitive privileged registers. Some, like the processor | ||
92 | * status register (psr), are broken up into multiple memory locations. | ||
93 | * Others, like "pend", are abstractions based on privileged registers. | ||
94 | * "Pend" is guaranteed to be set if reading cr.ivr would return a | ||
95 | * (non-spurious) interrupt. */ | ||
96 | #define XEN_MAPPEDREGS ((struct mapped_regs *)XMAPPEDREGS_BASE) | ||
97 | |||
98 | #define XSI_PSR_I \ | ||
99 | (*XEN_MAPPEDREGS->interrupt_mask_addr) | ||
100 | #define xen_get_virtual_psr_i() \ | ||
101 | (!XSI_PSR_I) | ||
102 | #define xen_set_virtual_psr_i(_val) \ | ||
103 | ({ XSI_PSR_I = (uint8_t)(_val) ? 0 : 1; }) | ||
104 | #define xen_set_virtual_psr_ic(_val) \ | ||
105 | ({ XEN_MAPPEDREGS->interrupt_collection_enabled = _val ? 1 : 0; }) | ||
106 | #define xen_get_virtual_pend() \ | ||
107 | (*(((uint8_t *)XEN_MAPPEDREGS->interrupt_mask_addr) - 1)) | ||
108 | |||
109 | /* Although all privileged operations can be left to trap and will | ||
110 | * be properly handled by Xen, some are frequent enough that we use | ||
111 | * hyperprivops for performance. */ | ||
112 | extern unsigned long xen_get_psr(void); | ||
113 | extern unsigned long xen_get_ivr(void); | ||
114 | extern unsigned long xen_get_tpr(void); | ||
115 | extern void xen_hyper_ssm_i(void); | ||
116 | extern void xen_set_itm(unsigned long); | ||
117 | extern void xen_set_tpr(unsigned long); | ||
118 | extern void xen_eoi(unsigned long); | ||
119 | extern unsigned long xen_get_rr(unsigned long index); | ||
120 | extern void xen_set_rr(unsigned long index, unsigned long val); | ||
121 | extern void xen_set_rr0_to_rr4(unsigned long val0, unsigned long val1, | ||
122 | unsigned long val2, unsigned long val3, | ||
123 | unsigned long val4); | ||
124 | extern void xen_set_kr(unsigned long index, unsigned long val); | ||
125 | extern void xen_ptcga(unsigned long addr, unsigned long size); | ||
126 | |||
127 | #endif /* !__ASSEMBLY__ */ | ||
128 | |||
129 | #endif /* _ASM_IA64_XEN_PRIVOP_H */ | ||
diff --git a/arch/ia64/include/asm/xen/xcom_hcall.h b/arch/ia64/include/asm/xen/xcom_hcall.h new file mode 100644 index 000000000000..20b2950c71b6 --- /dev/null +++ b/arch/ia64/include/asm/xen/xcom_hcall.h | |||
@@ -0,0 +1,51 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2006 Tristan Gingold <tristan.gingold@bull.net>, Bull SAS | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify | ||
5 | * it under the terms of the GNU General Public License as published by | ||
6 | * the Free Software Foundation; either version 2 of the License, or | ||
7 | * (at your option) any later version. | ||
8 | * | ||
9 | * This program is distributed in the hope that it will be useful, | ||
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
12 | * GNU General Public License for more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU General Public License | ||
15 | * along with this program; if not, write to the Free Software | ||
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
17 | */ | ||
18 | |||
19 | #ifndef _ASM_IA64_XEN_XCOM_HCALL_H | ||
20 | #define _ASM_IA64_XEN_XCOM_HCALL_H | ||
21 | |||
22 | /* These function creates inline or mini descriptor for the parameters and | ||
23 | calls the corresponding xencomm_arch_hypercall_X. | ||
24 | Architectures should defines HYPERVISOR_xxx as xencomm_hypercall_xxx unless | ||
25 | they want to use their own wrapper. */ | ||
26 | extern int xencomm_hypercall_console_io(int cmd, int count, char *str); | ||
27 | |||
28 | extern int xencomm_hypercall_event_channel_op(int cmd, void *op); | ||
29 | |||
30 | extern int xencomm_hypercall_xen_version(int cmd, void *arg); | ||
31 | |||
32 | extern int xencomm_hypercall_physdev_op(int cmd, void *op); | ||
33 | |||
34 | extern int xencomm_hypercall_grant_table_op(unsigned int cmd, void *op, | ||
35 | unsigned int count); | ||
36 | |||
37 | extern int xencomm_hypercall_sched_op(int cmd, void *arg); | ||
38 | |||
39 | extern int xencomm_hypercall_multicall(void *call_list, int nr_calls); | ||
40 | |||
41 | extern int xencomm_hypercall_callback_op(int cmd, void *arg); | ||
42 | |||
43 | extern int xencomm_hypercall_memory_op(unsigned int cmd, void *arg); | ||
44 | |||
45 | extern int xencomm_hypercall_suspend(unsigned long srec); | ||
46 | |||
47 | extern long xencomm_hypercall_vcpu_op(int cmd, int cpu, void *arg); | ||
48 | |||
49 | extern long xencomm_hypercall_opt_feature(void *arg); | ||
50 | |||
51 | #endif /* _ASM_IA64_XEN_XCOM_HCALL_H */ | ||
diff --git a/arch/ia64/include/asm/xen/xencomm.h b/arch/ia64/include/asm/xen/xencomm.h new file mode 100644 index 000000000000..cded677bebf2 --- /dev/null +++ b/arch/ia64/include/asm/xen/xencomm.h | |||
@@ -0,0 +1,42 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2006 Hollis Blanchard <hollisb@us.ibm.com>, IBM Corporation | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify | ||
5 | * it under the terms of the GNU General Public License as published by | ||
6 | * the Free Software Foundation; either version 2 of the License, or | ||
7 | * (at your option) any later version. | ||
8 | * | ||
9 | * This program is distributed in the hope that it will be useful, | ||
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
12 | * GNU General Public License for more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU General Public License | ||
15 | * along with this program; if not, write to the Free Software | ||
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
17 | */ | ||
18 | |||
19 | #ifndef _ASM_IA64_XEN_XENCOMM_H | ||
20 | #define _ASM_IA64_XEN_XENCOMM_H | ||
21 | |||
22 | #include <xen/xencomm.h> | ||
23 | #include <asm/pgtable.h> | ||
24 | |||
25 | /* Must be called before any hypercall. */ | ||
26 | extern void xencomm_initialize(void); | ||
27 | extern int xencomm_is_initialized(void); | ||
28 | |||
29 | /* Check if virtual contiguity means physical contiguity | ||
30 | * where the passed address is a pointer value in virtual address. | ||
31 | * On ia64, identity mapping area in region 7 or the piece of region 5 | ||
32 | * that is mapped by itr[IA64_TR_KERNEL]/dtr[IA64_TR_KERNEL] | ||
33 | */ | ||
34 | static inline int xencomm_is_phys_contiguous(unsigned long addr) | ||
35 | { | ||
36 | return (PAGE_OFFSET <= addr && | ||
37 | addr < (PAGE_OFFSET + (1UL << IA64_MAX_PHYS_BITS))) || | ||
38 | (KERNEL_START <= addr && | ||
39 | addr < KERNEL_START + KERNEL_TR_PAGE_SIZE); | ||
40 | } | ||
41 | |||
42 | #endif /* _ASM_IA64_XEN_XENCOMM_H */ | ||
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile index 87fea11aecb7..55e6ca8eebda 100644 --- a/arch/ia64/kernel/Makefile +++ b/arch/ia64/kernel/Makefile | |||
@@ -112,5 +112,23 @@ clean-files += $(objtree)/include/asm-ia64/nr-irqs.h | |||
112 | ASM_PARAVIRT_OBJS = ivt.o entry.o | 112 | ASM_PARAVIRT_OBJS = ivt.o entry.o |
113 | define paravirtualized_native | 113 | define paravirtualized_native |
114 | AFLAGS_$(1) += -D__IA64_ASM_PARAVIRTUALIZED_NATIVE | 114 | AFLAGS_$(1) += -D__IA64_ASM_PARAVIRTUALIZED_NATIVE |
115 | AFLAGS_pvchk-sed-$(1) += -D__IA64_ASM_PARAVIRTUALIZED_PVCHECK | ||
116 | extra-y += pvchk-$(1) | ||
115 | endef | 117 | endef |
116 | $(foreach obj,$(ASM_PARAVIRT_OBJS),$(eval $(call paravirtualized_native,$(obj)))) | 118 | $(foreach obj,$(ASM_PARAVIRT_OBJS),$(eval $(call paravirtualized_native,$(obj)))) |
119 | |||
120 | # | ||
121 | # Checker for paravirtualizations of privileged operations. | ||
122 | # | ||
123 | quiet_cmd_pv_check_sed = PVCHK $@ | ||
124 | define cmd_pv_check_sed | ||
125 | sed -f $(srctree)/arch/$(SRCARCH)/scripts/pvcheck.sed $< > $@ | ||
126 | endef | ||
127 | |||
128 | $(obj)/pvchk-sed-%.s: $(src)/%.S $(srctree)/arch/$(SRCARCH)/scripts/pvcheck.sed FORCE | ||
129 | $(call if_changed_dep,as_s_S) | ||
130 | $(obj)/pvchk-%.s: $(obj)/pvchk-sed-%.s FORCE | ||
131 | $(call if_changed,pv_check_sed) | ||
132 | $(obj)/pvchk-%.o: $(obj)/pvchk-%.s FORCE | ||
133 | $(call if_changed,as_o_S) | ||
134 | .PRECIOUS: $(obj)/pvchk-sed-%.s $(obj)/pvchk-%.s $(obj)/pvchk-%.o | ||
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 5d1eb7ee2bf6..00936491933e 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c | |||
@@ -52,6 +52,7 @@ | |||
52 | #include <asm/numa.h> | 52 | #include <asm/numa.h> |
53 | #include <asm/sal.h> | 53 | #include <asm/sal.h> |
54 | #include <asm/cyclone.h> | 54 | #include <asm/cyclone.h> |
55 | #include <asm/xen/hypervisor.h> | ||
55 | 56 | ||
56 | #define BAD_MADT_ENTRY(entry, end) ( \ | 57 | #define BAD_MADT_ENTRY(entry, end) ( \ |
57 | (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ | 58 | (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ |
@@ -121,6 +122,8 @@ acpi_get_sysname(void) | |||
121 | return "uv"; | 122 | return "uv"; |
122 | else | 123 | else |
123 | return "sn2"; | 124 | return "sn2"; |
125 | } else if (xen_pv_domain() && !strcmp(hdr->oem_id, "XEN")) { | ||
126 | return "xen"; | ||
124 | } | 127 | } |
125 | 128 | ||
126 | return "dig"; | 129 | return "dig"; |
@@ -137,6 +140,8 @@ acpi_get_sysname(void) | |||
137 | return "uv"; | 140 | return "uv"; |
138 | # elif defined (CONFIG_IA64_DIG) | 141 | # elif defined (CONFIG_IA64_DIG) |
139 | return "dig"; | 142 | return "dig"; |
143 | # elif defined (CONFIG_IA64_XEN_GUEST) | ||
144 | return "xen"; | ||
140 | # else | 145 | # else |
141 | # error Unknown platform. Fix acpi.c. | 146 | # error Unknown platform. Fix acpi.c. |
142 | # endif | 147 | # endif |
diff --git a/arch/ia64/kernel/asm-offsets.c b/arch/ia64/kernel/asm-offsets.c index 94c44b1ccfd0..742dbb1d5a4f 100644 --- a/arch/ia64/kernel/asm-offsets.c +++ b/arch/ia64/kernel/asm-offsets.c | |||
@@ -16,6 +16,9 @@ | |||
16 | #include <asm/sigcontext.h> | 16 | #include <asm/sigcontext.h> |
17 | #include <asm/mca.h> | 17 | #include <asm/mca.h> |
18 | 18 | ||
19 | #include <asm/xen/interface.h> | ||
20 | #include <asm/xen/hypervisor.h> | ||
21 | |||
19 | #include "../kernel/sigframe.h" | 22 | #include "../kernel/sigframe.h" |
20 | #include "../kernel/fsyscall_gtod_data.h" | 23 | #include "../kernel/fsyscall_gtod_data.h" |
21 | 24 | ||
@@ -286,4 +289,32 @@ void foo(void) | |||
286 | offsetof (struct itc_jitter_data_t, itc_jitter)); | 289 | offsetof (struct itc_jitter_data_t, itc_jitter)); |
287 | DEFINE(IA64_ITC_LASTCYCLE_OFFSET, | 290 | DEFINE(IA64_ITC_LASTCYCLE_OFFSET, |
288 | offsetof (struct itc_jitter_data_t, itc_lastcycle)); | 291 | offsetof (struct itc_jitter_data_t, itc_lastcycle)); |
292 | |||
293 | #ifdef CONFIG_XEN | ||
294 | BLANK(); | ||
295 | |||
296 | DEFINE(XEN_NATIVE_ASM, XEN_NATIVE); | ||
297 | DEFINE(XEN_PV_DOMAIN_ASM, XEN_PV_DOMAIN); | ||
298 | |||
299 | #define DEFINE_MAPPED_REG_OFS(sym, field) \ | ||
300 | DEFINE(sym, (XMAPPEDREGS_OFS + offsetof(struct mapped_regs, field))) | ||
301 | |||
302 | DEFINE_MAPPED_REG_OFS(XSI_PSR_I_ADDR_OFS, interrupt_mask_addr); | ||
303 | DEFINE_MAPPED_REG_OFS(XSI_IPSR_OFS, ipsr); | ||
304 | DEFINE_MAPPED_REG_OFS(XSI_IIP_OFS, iip); | ||
305 | DEFINE_MAPPED_REG_OFS(XSI_IFS_OFS, ifs); | ||
306 | DEFINE_MAPPED_REG_OFS(XSI_PRECOVER_IFS_OFS, precover_ifs); | ||
307 | DEFINE_MAPPED_REG_OFS(XSI_ISR_OFS, isr); | ||
308 | DEFINE_MAPPED_REG_OFS(XSI_IFA_OFS, ifa); | ||
309 | DEFINE_MAPPED_REG_OFS(XSI_IIPA_OFS, iipa); | ||
310 | DEFINE_MAPPED_REG_OFS(XSI_IIM_OFS, iim); | ||
311 | DEFINE_MAPPED_REG_OFS(XSI_IHA_OFS, iha); | ||
312 | DEFINE_MAPPED_REG_OFS(XSI_ITIR_OFS, itir); | ||
313 | DEFINE_MAPPED_REG_OFS(XSI_PSR_IC_OFS, interrupt_collection_enabled); | ||
314 | DEFINE_MAPPED_REG_OFS(XSI_BANKNUM_OFS, banknum); | ||
315 | DEFINE_MAPPED_REG_OFS(XSI_BANK0_R16_OFS, bank0_regs[0]); | ||
316 | DEFINE_MAPPED_REG_OFS(XSI_BANK1_R16_OFS, bank1_regs[0]); | ||
317 | DEFINE_MAPPED_REG_OFS(XSI_B0NATS_OFS, vbnat); | ||
318 | DEFINE_MAPPED_REG_OFS(XSI_B1NATS_OFS, vnat); | ||
319 | #endif /* CONFIG_XEN */ | ||
289 | } | 320 | } |
diff --git a/arch/ia64/kernel/ivt.S b/arch/ia64/kernel/ivt.S index 416a952b19bd..f675d8e33853 100644 --- a/arch/ia64/kernel/ivt.S +++ b/arch/ia64/kernel/ivt.S | |||
@@ -580,7 +580,7 @@ ENTRY(dirty_bit) | |||
580 | mov b0=r29 // restore b0 | 580 | mov b0=r29 // restore b0 |
581 | ;; | 581 | ;; |
582 | st8 [r17]=r18 // store back updated PTE | 582 | st8 [r17]=r18 // store back updated PTE |
583 | itc.d r18 // install updated PTE | 583 | ITC_D(p0, r18, r16) // install updated PTE |
584 | #endif | 584 | #endif |
585 | mov pr=r31,-1 // restore pr | 585 | mov pr=r31,-1 // restore pr |
586 | RFI | 586 | RFI |
@@ -646,7 +646,7 @@ ENTRY(iaccess_bit) | |||
646 | mov b0=r29 // restore b0 | 646 | mov b0=r29 // restore b0 |
647 | ;; | 647 | ;; |
648 | st8 [r17]=r18 // store back updated PTE | 648 | st8 [r17]=r18 // store back updated PTE |
649 | itc.i r18 // install updated PTE | 649 | ITC_I(p0, r18, r16) // install updated PTE |
650 | #endif /* !CONFIG_SMP */ | 650 | #endif /* !CONFIG_SMP */ |
651 | mov pr=r31,-1 | 651 | mov pr=r31,-1 |
652 | RFI | 652 | RFI |
@@ -698,7 +698,7 @@ ENTRY(daccess_bit) | |||
698 | or r18=_PAGE_A,r18 // set the accessed bit | 698 | or r18=_PAGE_A,r18 // set the accessed bit |
699 | ;; | 699 | ;; |
700 | st8 [r17]=r18 // store back updated PTE | 700 | st8 [r17]=r18 // store back updated PTE |
701 | itc.d r18 // install updated PTE | 701 | ITC_D(p0, r18, r16) // install updated PTE |
702 | #endif | 702 | #endif |
703 | mov b0=r29 // restore b0 | 703 | mov b0=r29 // restore b0 |
704 | mov pr=r31,-1 | 704 | mov pr=r31,-1 |
diff --git a/arch/ia64/kernel/nr-irqs.c b/arch/ia64/kernel/nr-irqs.c index 8273afc32db8..ee564575148e 100644 --- a/arch/ia64/kernel/nr-irqs.c +++ b/arch/ia64/kernel/nr-irqs.c | |||
@@ -10,6 +10,7 @@ | |||
10 | #include <linux/kbuild.h> | 10 | #include <linux/kbuild.h> |
11 | #include <linux/threads.h> | 11 | #include <linux/threads.h> |
12 | #include <asm/native/irq.h> | 12 | #include <asm/native/irq.h> |
13 | #include <asm/xen/irq.h> | ||
13 | 14 | ||
14 | void foo(void) | 15 | void foo(void) |
15 | { | 16 | { |
diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c index afaf5b9a2cf0..de35d8e8b7d2 100644 --- a/arch/ia64/kernel/paravirt.c +++ b/arch/ia64/kernel/paravirt.c | |||
@@ -332,7 +332,7 @@ ia64_native_iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val) | |||
332 | 332 | ||
333 | struct pv_iosapic_ops pv_iosapic_ops = { | 333 | struct pv_iosapic_ops pv_iosapic_ops = { |
334 | .pcat_compat_init = ia64_native_iosapic_pcat_compat_init, | 334 | .pcat_compat_init = ia64_native_iosapic_pcat_compat_init, |
335 | .get_irq_chip = ia64_native_iosapic_get_irq_chip, | 335 | .__get_irq_chip = ia64_native_iosapic_get_irq_chip, |
336 | 336 | ||
337 | .__read = ia64_native_iosapic_read, | 337 | .__read = ia64_native_iosapic_read, |
338 | .__write = ia64_native_iosapic_write, | 338 | .__write = ia64_native_iosapic_write, |
diff --git a/arch/ia64/kernel/paravirt_inst.h b/arch/ia64/kernel/paravirt_inst.h index 5cad6fb2ed19..64d6d810c64b 100644 --- a/arch/ia64/kernel/paravirt_inst.h +++ b/arch/ia64/kernel/paravirt_inst.h | |||
@@ -20,7 +20,9 @@ | |||
20 | * | 20 | * |
21 | */ | 21 | */ |
22 | 22 | ||
23 | #ifdef __IA64_ASM_PARAVIRTUALIZED_XEN | 23 | #ifdef __IA64_ASM_PARAVIRTUALIZED_PVCHECK |
24 | #include <asm/native/pvchk_inst.h> | ||
25 | #elif defined(__IA64_ASM_PARAVIRTUALIZED_XEN) | ||
24 | #include <asm/xen/inst.h> | 26 | #include <asm/xen/inst.h> |
25 | #include <asm/xen/minstate.h> | 27 | #include <asm/xen/minstate.h> |
26 | #else | 28 | #else |
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index 341a0319a5ba..c57162705147 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c | |||
@@ -242,7 +242,6 @@ default_idle (void) | |||
242 | /* We don't actually take CPU down, just spin without interrupts. */ | 242 | /* We don't actually take CPU down, just spin without interrupts. */ |
243 | static inline void play_dead(void) | 243 | static inline void play_dead(void) |
244 | { | 244 | { |
245 | extern void ia64_cpu_local_tick (void); | ||
246 | unsigned int this_cpu = smp_processor_id(); | 245 | unsigned int this_cpu = smp_processor_id(); |
247 | 246 | ||
248 | /* Ack it */ | 247 | /* Ack it */ |
diff --git a/arch/ia64/scripts/pvcheck.sed b/arch/ia64/scripts/pvcheck.sed new file mode 100644 index 000000000000..ba66ac2e4c60 --- /dev/null +++ b/arch/ia64/scripts/pvcheck.sed | |||
@@ -0,0 +1,32 @@ | |||
1 | # | ||
2 | # Checker for paravirtualizations of privileged operations. | ||
3 | # | ||
4 | s/ssm.*psr\.ic.*/.warning \"ssm psr.ic should not be used directly\"/g | ||
5 | s/rsm.*psr\.ic.*/.warning \"rsm psr.ic should not be used directly\"/g | ||
6 | s/ssm.*psr\.i.*/.warning \"ssm psr.i should not be used directly\"/g | ||
7 | s/rsm.*psr\.i.*/.warning \"rsm psr.i should not be used directly\"/g | ||
8 | s/ssm.*psr\.dt.*/.warning \"ssm psr.dt should not be used directly\"/g | ||
9 | s/rsm.*psr\.dt.*/.warning \"rsm psr.dt should not be used directly\"/g | ||
10 | s/mov.*=.*cr\.ifa/.warning \"cr.ifa should not used directly\"/g | ||
11 | s/mov.*=.*cr\.itir/.warning \"cr.itir should not used directly\"/g | ||
12 | s/mov.*=.*cr\.isr/.warning \"cr.isr should not used directly\"/g | ||
13 | s/mov.*=.*cr\.iha/.warning \"cr.iha should not used directly\"/g | ||
14 | s/mov.*=.*cr\.ipsr/.warning \"cr.ipsr should not used directly\"/g | ||
15 | s/mov.*=.*cr\.iim/.warning \"cr.iim should not used directly\"/g | ||
16 | s/mov.*=.*cr\.iip/.warning \"cr.iip should not used directly\"/g | ||
17 | s/mov.*=.*cr\.ivr/.warning \"cr.ivr should not used directly\"/g | ||
18 | s/mov.*=[^\.]*psr/.warning \"psr should not used directly\"/g # avoid ar.fpsr | ||
19 | s/mov.*=.*ar\.eflags/.warning \"ar.eflags should not used directly\"/g | ||
20 | s/mov.*cr\.ifa.*=.*/.warning \"cr.ifa should not used directly\"/g | ||
21 | s/mov.*cr\.itir.*=.*/.warning \"cr.itir should not used directly\"/g | ||
22 | s/mov.*cr\.iha.*=.*/.warning \"cr.iha should not used directly\"/g | ||
23 | s/mov.*cr\.ipsr.*=.*/.warning \"cr.ipsr should not used directly\"/g | ||
24 | s/mov.*cr\.ifs.*=.*/.warning \"cr.ifs should not used directly\"/g | ||
25 | s/mov.*cr\.iip.*=.*/.warning \"cr.iip should not used directly\"/g | ||
26 | s/mov.*cr\.kr.*=.*/.warning \"cr.kr should not used directly\"/g | ||
27 | s/mov.*ar\.eflags.*=.*/.warning \"ar.eflags should not used directly\"/g | ||
28 | s/itc\.i.*/.warning \"itc.i should not be used directly.\"/g | ||
29 | s/itc\.d.*/.warning \"itc.d should not be used directly.\"/g | ||
30 | s/bsw\.0/.warning \"bsw.0 should not be used directly.\"/g | ||
31 | s/bsw\.1/.warning \"bsw.1 should not be used directly.\"/g | ||
32 | s/ptc\.ga.*/.warning \"ptc.ga should not be used directly.\"/g | ||
diff --git a/arch/ia64/xen/Kconfig b/arch/ia64/xen/Kconfig new file mode 100644 index 000000000000..f1683a20275b --- /dev/null +++ b/arch/ia64/xen/Kconfig | |||
@@ -0,0 +1,26 @@ | |||
1 | # | ||
2 | # This Kconfig describes xen/ia64 options | ||
3 | # | ||
4 | |||
5 | config XEN | ||
6 | bool "Xen hypervisor support" | ||
7 | default y | ||
8 | depends on PARAVIRT && MCKINLEY && IA64_PAGE_SIZE_16KB && EXPERIMENTAL | ||
9 | select XEN_XENCOMM | ||
10 | select NO_IDLE_HZ | ||
11 | |||
12 | # those are required to save/restore. | ||
13 | select ARCH_SUSPEND_POSSIBLE | ||
14 | select SUSPEND | ||
15 | select PM_SLEEP | ||
16 | help | ||
17 | Enable Xen hypervisor support. Resulting kernel runs | ||
18 | both as a guest OS on Xen and natively on hardware. | ||
19 | |||
20 | config XEN_XENCOMM | ||
21 | depends on XEN | ||
22 | bool | ||
23 | |||
24 | config NO_IDLE_HZ | ||
25 | depends on XEN | ||
26 | bool | ||
diff --git a/arch/ia64/xen/Makefile b/arch/ia64/xen/Makefile new file mode 100644 index 000000000000..0ad0224693d9 --- /dev/null +++ b/arch/ia64/xen/Makefile | |||
@@ -0,0 +1,22 @@ | |||
1 | # | ||
2 | # Makefile for Xen components | ||
3 | # | ||
4 | |||
5 | obj-y := hypercall.o xenivt.o xensetup.o xen_pv_ops.o irq_xen.o \ | ||
6 | hypervisor.o xencomm.o xcom_hcall.o grant-table.o time.o suspend.o | ||
7 | |||
8 | obj-$(CONFIG_IA64_GENERIC) += machvec.o | ||
9 | |||
10 | AFLAGS_xenivt.o += -D__IA64_ASM_PARAVIRTUALIZED_XEN | ||
11 | |||
12 | # xen multi compile | ||
13 | ASM_PARAVIRT_MULTI_COMPILE_SRCS = ivt.S entry.S | ||
14 | ASM_PARAVIRT_OBJS = $(addprefix xen-,$(ASM_PARAVIRT_MULTI_COMPILE_SRCS:.S=.o)) | ||
15 | obj-y += $(ASM_PARAVIRT_OBJS) | ||
16 | define paravirtualized_xen | ||
17 | AFLAGS_$(1) += -D__IA64_ASM_PARAVIRTUALIZED_XEN | ||
18 | endef | ||
19 | $(foreach o,$(ASM_PARAVIRT_OBJS),$(eval $(call paravirtualized_xen,$(o)))) | ||
20 | |||
21 | $(obj)/xen-%.o: $(src)/../kernel/%.S FORCE | ||
22 | $(call if_changed_dep,as_o_S) | ||
diff --git a/arch/ia64/xen/grant-table.c b/arch/ia64/xen/grant-table.c new file mode 100644 index 000000000000..777dd9a9108b --- /dev/null +++ b/arch/ia64/xen/grant-table.c | |||
@@ -0,0 +1,155 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/xen/grant-table.c | ||
3 | * | ||
4 | * Copyright (c) 2006 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | |||
23 | #include <linux/module.h> | ||
24 | #include <linux/vmalloc.h> | ||
25 | #include <linux/mm.h> | ||
26 | |||
27 | #include <xen/interface/xen.h> | ||
28 | #include <xen/interface/memory.h> | ||
29 | #include <xen/grant_table.h> | ||
30 | |||
31 | #include <asm/xen/hypervisor.h> | ||
32 | |||
33 | struct vm_struct *xen_alloc_vm_area(unsigned long size) | ||
34 | { | ||
35 | int order; | ||
36 | unsigned long virt; | ||
37 | unsigned long nr_pages; | ||
38 | struct vm_struct *area; | ||
39 | |||
40 | order = get_order(size); | ||
41 | virt = __get_free_pages(GFP_KERNEL, order); | ||
42 | if (virt == 0) | ||
43 | goto err0; | ||
44 | nr_pages = 1 << order; | ||
45 | scrub_pages(virt, nr_pages); | ||
46 | |||
47 | area = kmalloc(sizeof(*area), GFP_KERNEL); | ||
48 | if (area == NULL) | ||
49 | goto err1; | ||
50 | |||
51 | area->flags = VM_IOREMAP; | ||
52 | area->addr = (void *)virt; | ||
53 | area->size = size; | ||
54 | area->pages = NULL; | ||
55 | area->nr_pages = nr_pages; | ||
56 | area->phys_addr = 0; /* xenbus_map_ring_valloc uses this field! */ | ||
57 | |||
58 | return area; | ||
59 | |||
60 | err1: | ||
61 | free_pages(virt, order); | ||
62 | err0: | ||
63 | return NULL; | ||
64 | } | ||
65 | EXPORT_SYMBOL_GPL(xen_alloc_vm_area); | ||
66 | |||
67 | void xen_free_vm_area(struct vm_struct *area) | ||
68 | { | ||
69 | unsigned int order = get_order(area->size); | ||
70 | unsigned long i; | ||
71 | unsigned long phys_addr = __pa(area->addr); | ||
72 | |||
73 | /* This area is used for foreign page mappping. | ||
74 | * So underlying machine page may not be assigned. */ | ||
75 | for (i = 0; i < (1 << order); i++) { | ||
76 | unsigned long ret; | ||
77 | unsigned long gpfn = (phys_addr >> PAGE_SHIFT) + i; | ||
78 | struct xen_memory_reservation reservation = { | ||
79 | .nr_extents = 1, | ||
80 | .address_bits = 0, | ||
81 | .extent_order = 0, | ||
82 | .domid = DOMID_SELF | ||
83 | }; | ||
84 | set_xen_guest_handle(reservation.extent_start, &gpfn); | ||
85 | ret = HYPERVISOR_memory_op(XENMEM_populate_physmap, | ||
86 | &reservation); | ||
87 | BUG_ON(ret != 1); | ||
88 | } | ||
89 | free_pages((unsigned long)area->addr, order); | ||
90 | kfree(area); | ||
91 | } | ||
92 | EXPORT_SYMBOL_GPL(xen_free_vm_area); | ||
93 | |||
94 | |||
95 | /**************************************************************************** | ||
96 | * grant table hack | ||
97 | * cmd: GNTTABOP_xxx | ||
98 | */ | ||
99 | |||
100 | int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes, | ||
101 | unsigned long max_nr_gframes, | ||
102 | struct grant_entry **__shared) | ||
103 | { | ||
104 | *__shared = __va(frames[0] << PAGE_SHIFT); | ||
105 | return 0; | ||
106 | } | ||
107 | |||
108 | void arch_gnttab_unmap_shared(struct grant_entry *shared, | ||
109 | unsigned long nr_gframes) | ||
110 | { | ||
111 | /* nothing */ | ||
112 | } | ||
113 | |||
114 | static void | ||
115 | gnttab_map_grant_ref_pre(struct gnttab_map_grant_ref *uop) | ||
116 | { | ||
117 | uint32_t flags; | ||
118 | |||
119 | flags = uop->flags; | ||
120 | |||
121 | if (flags & GNTMAP_host_map) { | ||
122 | if (flags & GNTMAP_application_map) { | ||
123 | printk(KERN_DEBUG | ||
124 | "GNTMAP_application_map is not supported yet: " | ||
125 | "flags 0x%x\n", flags); | ||
126 | BUG(); | ||
127 | } | ||
128 | if (flags & GNTMAP_contains_pte) { | ||
129 | printk(KERN_DEBUG | ||
130 | "GNTMAP_contains_pte is not supported yet: " | ||
131 | "flags 0x%x\n", flags); | ||
132 | BUG(); | ||
133 | } | ||
134 | } else if (flags & GNTMAP_device_map) { | ||
135 | printk("GNTMAP_device_map is not supported yet 0x%x\n", flags); | ||
136 | BUG(); /* not yet. actually this flag is not used. */ | ||
137 | } else { | ||
138 | BUG(); | ||
139 | } | ||
140 | } | ||
141 | |||
142 | int | ||
143 | HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count) | ||
144 | { | ||
145 | if (cmd == GNTTABOP_map_grant_ref) { | ||
146 | unsigned int i; | ||
147 | for (i = 0; i < count; i++) { | ||
148 | gnttab_map_grant_ref_pre( | ||
149 | (struct gnttab_map_grant_ref *)uop + i); | ||
150 | } | ||
151 | } | ||
152 | return xencomm_hypercall_grant_table_op(cmd, uop, count); | ||
153 | } | ||
154 | |||
155 | EXPORT_SYMBOL(HYPERVISOR_grant_table_op); | ||
diff --git a/arch/ia64/xen/hypercall.S b/arch/ia64/xen/hypercall.S new file mode 100644 index 000000000000..d4ff0b9e79f1 --- /dev/null +++ b/arch/ia64/xen/hypercall.S | |||
@@ -0,0 +1,91 @@ | |||
1 | /* | ||
2 | * Support routines for Xen hypercalls | ||
3 | * | ||
4 | * Copyright (C) 2005 Dan Magenheimer <dan.magenheimer@hp.com> | ||
5 | * Copyright (C) 2008 Yaozu (Eddie) Dong <eddie.dong@intel.com> | ||
6 | */ | ||
7 | |||
8 | #include <asm/asmmacro.h> | ||
9 | #include <asm/intrinsics.h> | ||
10 | #include <asm/xen/privop.h> | ||
11 | |||
12 | /* | ||
13 | * Hypercalls without parameter. | ||
14 | */ | ||
15 | #define __HCALL0(name,hcall) \ | ||
16 | GLOBAL_ENTRY(name); \ | ||
17 | break hcall; \ | ||
18 | br.ret.sptk.many rp; \ | ||
19 | END(name) | ||
20 | |||
21 | /* | ||
22 | * Hypercalls with 1 parameter. | ||
23 | */ | ||
24 | #define __HCALL1(name,hcall) \ | ||
25 | GLOBAL_ENTRY(name); \ | ||
26 | mov r8=r32; \ | ||
27 | break hcall; \ | ||
28 | br.ret.sptk.many rp; \ | ||
29 | END(name) | ||
30 | |||
31 | /* | ||
32 | * Hypercalls with 2 parameters. | ||
33 | */ | ||
34 | #define __HCALL2(name,hcall) \ | ||
35 | GLOBAL_ENTRY(name); \ | ||
36 | mov r8=r32; \ | ||
37 | mov r9=r33; \ | ||
38 | break hcall; \ | ||
39 | br.ret.sptk.many rp; \ | ||
40 | END(name) | ||
41 | |||
42 | __HCALL0(xen_get_psr, HYPERPRIVOP_GET_PSR) | ||
43 | __HCALL0(xen_get_ivr, HYPERPRIVOP_GET_IVR) | ||
44 | __HCALL0(xen_get_tpr, HYPERPRIVOP_GET_TPR) | ||
45 | __HCALL0(xen_hyper_ssm_i, HYPERPRIVOP_SSM_I) | ||
46 | |||
47 | __HCALL1(xen_set_tpr, HYPERPRIVOP_SET_TPR) | ||
48 | __HCALL1(xen_eoi, HYPERPRIVOP_EOI) | ||
49 | __HCALL1(xen_thash, HYPERPRIVOP_THASH) | ||
50 | __HCALL1(xen_set_itm, HYPERPRIVOP_SET_ITM) | ||
51 | __HCALL1(xen_get_rr, HYPERPRIVOP_GET_RR) | ||
52 | __HCALL1(xen_fc, HYPERPRIVOP_FC) | ||
53 | __HCALL1(xen_get_cpuid, HYPERPRIVOP_GET_CPUID) | ||
54 | __HCALL1(xen_get_pmd, HYPERPRIVOP_GET_PMD) | ||
55 | |||
56 | __HCALL2(xen_ptcga, HYPERPRIVOP_PTC_GA) | ||
57 | __HCALL2(xen_set_rr, HYPERPRIVOP_SET_RR) | ||
58 | __HCALL2(xen_set_kr, HYPERPRIVOP_SET_KR) | ||
59 | |||
60 | #ifdef CONFIG_IA32_SUPPORT | ||
61 | __HCALL1(xen_get_eflag, HYPERPRIVOP_GET_EFLAG) | ||
62 | __HCALL1(xen_set_eflag, HYPERPRIVOP_SET_EFLAG) // refer SDM vol1 3.1.8 | ||
63 | #endif /* CONFIG_IA32_SUPPORT */ | ||
64 | |||
65 | GLOBAL_ENTRY(xen_set_rr0_to_rr4) | ||
66 | mov r8=r32 | ||
67 | mov r9=r33 | ||
68 | mov r10=r34 | ||
69 | mov r11=r35 | ||
70 | mov r14=r36 | ||
71 | XEN_HYPER_SET_RR0_TO_RR4 | ||
72 | br.ret.sptk.many rp | ||
73 | ;; | ||
74 | END(xen_set_rr0_to_rr4) | ||
75 | |||
76 | GLOBAL_ENTRY(xen_send_ipi) | ||
77 | mov r14=r32 | ||
78 | mov r15=r33 | ||
79 | mov r2=0x400 | ||
80 | break 0x1000 | ||
81 | ;; | ||
82 | br.ret.sptk.many rp | ||
83 | ;; | ||
84 | END(xen_send_ipi) | ||
85 | |||
86 | GLOBAL_ENTRY(__hypercall) | ||
87 | mov r2=r37 | ||
88 | break 0x1000 | ||
89 | br.ret.sptk.many b0 | ||
90 | ;; | ||
91 | END(__hypercall) | ||
diff --git a/arch/ia64/xen/hypervisor.c b/arch/ia64/xen/hypervisor.c new file mode 100644 index 000000000000..cac4d97c0b5a --- /dev/null +++ b/arch/ia64/xen/hypervisor.c | |||
@@ -0,0 +1,96 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/xen/hypervisor.c | ||
3 | * | ||
4 | * Copyright (c) 2006 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | |||
23 | #include <linux/efi.h> | ||
24 | #include <asm/xen/hypervisor.h> | ||
25 | #include <asm/xen/privop.h> | ||
26 | |||
27 | #include "irq_xen.h" | ||
28 | |||
29 | struct shared_info *HYPERVISOR_shared_info __read_mostly = | ||
30 | (struct shared_info *)XSI_BASE; | ||
31 | EXPORT_SYMBOL(HYPERVISOR_shared_info); | ||
32 | |||
33 | DEFINE_PER_CPU(struct vcpu_info *, xen_vcpu); | ||
34 | |||
35 | struct start_info *xen_start_info; | ||
36 | EXPORT_SYMBOL(xen_start_info); | ||
37 | |||
38 | EXPORT_SYMBOL(xen_domain_type); | ||
39 | |||
40 | EXPORT_SYMBOL(__hypercall); | ||
41 | |||
42 | /* Stolen from arch/x86/xen/enlighten.c */ | ||
43 | /* | ||
44 | * Flag to determine whether vcpu info placement is available on all | ||
45 | * VCPUs. We assume it is to start with, and then set it to zero on | ||
46 | * the first failure. This is because it can succeed on some VCPUs | ||
47 | * and not others, since it can involve hypervisor memory allocation, | ||
48 | * or because the guest failed to guarantee all the appropriate | ||
49 | * constraints on all VCPUs (ie buffer can't cross a page boundary). | ||
50 | * | ||
51 | * Note that any particular CPU may be using a placed vcpu structure, | ||
52 | * but we can only optimise if the all are. | ||
53 | * | ||
54 | * 0: not available, 1: available | ||
55 | */ | ||
56 | |||
57 | static void __init xen_vcpu_setup(int cpu) | ||
58 | { | ||
59 | /* | ||
60 | * WARNING: | ||
61 | * before changing MAX_VIRT_CPUS, | ||
62 | * check that shared_info fits on a page | ||
63 | */ | ||
64 | BUILD_BUG_ON(sizeof(struct shared_info) > PAGE_SIZE); | ||
65 | per_cpu(xen_vcpu, cpu) = &HYPERVISOR_shared_info->vcpu_info[cpu]; | ||
66 | } | ||
67 | |||
68 | void __init xen_setup_vcpu_info_placement(void) | ||
69 | { | ||
70 | int cpu; | ||
71 | |||
72 | for_each_possible_cpu(cpu) | ||
73 | xen_vcpu_setup(cpu); | ||
74 | } | ||
75 | |||
76 | void __cpuinit | ||
77 | xen_cpu_init(void) | ||
78 | { | ||
79 | xen_smp_intr_init(); | ||
80 | } | ||
81 | |||
82 | /************************************************************************** | ||
83 | * opt feature | ||
84 | */ | ||
85 | void | ||
86 | xen_ia64_enable_opt_feature(void) | ||
87 | { | ||
88 | /* Enable region 7 identity map optimizations in Xen */ | ||
89 | struct xen_ia64_opt_feature optf; | ||
90 | |||
91 | optf.cmd = XEN_IA64_OPTF_IDENT_MAP_REG7; | ||
92 | optf.on = XEN_IA64_OPTF_ON; | ||
93 | optf.pgprot = pgprot_val(PAGE_KERNEL); | ||
94 | optf.key = 0; /* No key on linux. */ | ||
95 | HYPERVISOR_opt_feature(&optf); | ||
96 | } | ||
diff --git a/arch/ia64/xen/irq_xen.c b/arch/ia64/xen/irq_xen.c new file mode 100644 index 000000000000..af93aadb68bb --- /dev/null +++ b/arch/ia64/xen/irq_xen.c | |||
@@ -0,0 +1,435 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/xen/irq_xen.c | ||
3 | * | ||
4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | |||
23 | #include <linux/cpu.h> | ||
24 | |||
25 | #include <xen/interface/xen.h> | ||
26 | #include <xen/interface/callback.h> | ||
27 | #include <xen/events.h> | ||
28 | |||
29 | #include <asm/xen/privop.h> | ||
30 | |||
31 | #include "irq_xen.h" | ||
32 | |||
33 | /*************************************************************************** | ||
34 | * pv_irq_ops | ||
35 | * irq operations | ||
36 | */ | ||
37 | |||
38 | static int | ||
39 | xen_assign_irq_vector(int irq) | ||
40 | { | ||
41 | struct physdev_irq irq_op; | ||
42 | |||
43 | irq_op.irq = irq; | ||
44 | if (HYPERVISOR_physdev_op(PHYSDEVOP_alloc_irq_vector, &irq_op)) | ||
45 | return -ENOSPC; | ||
46 | |||
47 | return irq_op.vector; | ||
48 | } | ||
49 | |||
50 | static void | ||
51 | xen_free_irq_vector(int vector) | ||
52 | { | ||
53 | struct physdev_irq irq_op; | ||
54 | |||
55 | if (vector < IA64_FIRST_DEVICE_VECTOR || | ||
56 | vector > IA64_LAST_DEVICE_VECTOR) | ||
57 | return; | ||
58 | |||
59 | irq_op.vector = vector; | ||
60 | if (HYPERVISOR_physdev_op(PHYSDEVOP_free_irq_vector, &irq_op)) | ||
61 | printk(KERN_WARNING "%s: xen_free_irq_vecotr fail vector=%d\n", | ||
62 | __func__, vector); | ||
63 | } | ||
64 | |||
65 | |||
66 | static DEFINE_PER_CPU(int, timer_irq) = -1; | ||
67 | static DEFINE_PER_CPU(int, ipi_irq) = -1; | ||
68 | static DEFINE_PER_CPU(int, resched_irq) = -1; | ||
69 | static DEFINE_PER_CPU(int, cmc_irq) = -1; | ||
70 | static DEFINE_PER_CPU(int, cmcp_irq) = -1; | ||
71 | static DEFINE_PER_CPU(int, cpep_irq) = -1; | ||
72 | #define NAME_SIZE 15 | ||
73 | static DEFINE_PER_CPU(char[NAME_SIZE], timer_name); | ||
74 | static DEFINE_PER_CPU(char[NAME_SIZE], ipi_name); | ||
75 | static DEFINE_PER_CPU(char[NAME_SIZE], resched_name); | ||
76 | static DEFINE_PER_CPU(char[NAME_SIZE], cmc_name); | ||
77 | static DEFINE_PER_CPU(char[NAME_SIZE], cmcp_name); | ||
78 | static DEFINE_PER_CPU(char[NAME_SIZE], cpep_name); | ||
79 | #undef NAME_SIZE | ||
80 | |||
81 | struct saved_irq { | ||
82 | unsigned int irq; | ||
83 | struct irqaction *action; | ||
84 | }; | ||
85 | /* 16 should be far optimistic value, since only several percpu irqs | ||
86 | * are registered early. | ||
87 | */ | ||
88 | #define MAX_LATE_IRQ 16 | ||
89 | static struct saved_irq saved_percpu_irqs[MAX_LATE_IRQ]; | ||
90 | static unsigned short late_irq_cnt; | ||
91 | static unsigned short saved_irq_cnt; | ||
92 | static int xen_slab_ready; | ||
93 | |||
94 | #ifdef CONFIG_SMP | ||
95 | /* Dummy stub. Though we may check XEN_RESCHEDULE_VECTOR before __do_IRQ, | ||
96 | * it ends up to issue several memory accesses upon percpu data and | ||
97 | * thus adds unnecessary traffic to other paths. | ||
98 | */ | ||
99 | static irqreturn_t | ||
100 | xen_dummy_handler(int irq, void *dev_id) | ||
101 | { | ||
102 | |||
103 | return IRQ_HANDLED; | ||
104 | } | ||
105 | |||
106 | static struct irqaction xen_ipi_irqaction = { | ||
107 | .handler = handle_IPI, | ||
108 | .flags = IRQF_DISABLED, | ||
109 | .name = "IPI" | ||
110 | }; | ||
111 | |||
112 | static struct irqaction xen_resched_irqaction = { | ||
113 | .handler = xen_dummy_handler, | ||
114 | .flags = IRQF_DISABLED, | ||
115 | .name = "resched" | ||
116 | }; | ||
117 | |||
118 | static struct irqaction xen_tlb_irqaction = { | ||
119 | .handler = xen_dummy_handler, | ||
120 | .flags = IRQF_DISABLED, | ||
121 | .name = "tlb_flush" | ||
122 | }; | ||
123 | #endif | ||
124 | |||
125 | /* | ||
126 | * This is xen version percpu irq registration, which needs bind | ||
127 | * to xen specific evtchn sub-system. One trick here is that xen | ||
128 | * evtchn binding interface depends on kmalloc because related | ||
129 | * port needs to be freed at device/cpu down. So we cache the | ||
130 | * registration on BSP before slab is ready and then deal them | ||
131 | * at later point. For rest instances happening after slab ready, | ||
132 | * we hook them to xen evtchn immediately. | ||
133 | * | ||
134 | * FIXME: MCA is not supported by far, and thus "nomca" boot param is | ||
135 | * required. | ||
136 | */ | ||
137 | static void | ||
138 | __xen_register_percpu_irq(unsigned int cpu, unsigned int vec, | ||
139 | struct irqaction *action, int save) | ||
140 | { | ||
141 | irq_desc_t *desc; | ||
142 | int irq = 0; | ||
143 | |||
144 | if (xen_slab_ready) { | ||
145 | switch (vec) { | ||
146 | case IA64_TIMER_VECTOR: | ||
147 | snprintf(per_cpu(timer_name, cpu), | ||
148 | sizeof(per_cpu(timer_name, cpu)), | ||
149 | "%s%d", action->name, cpu); | ||
150 | irq = bind_virq_to_irqhandler(VIRQ_ITC, cpu, | ||
151 | action->handler, action->flags, | ||
152 | per_cpu(timer_name, cpu), action->dev_id); | ||
153 | per_cpu(timer_irq, cpu) = irq; | ||
154 | break; | ||
155 | case IA64_IPI_RESCHEDULE: | ||
156 | snprintf(per_cpu(resched_name, cpu), | ||
157 | sizeof(per_cpu(resched_name, cpu)), | ||
158 | "%s%d", action->name, cpu); | ||
159 | irq = bind_ipi_to_irqhandler(XEN_RESCHEDULE_VECTOR, cpu, | ||
160 | action->handler, action->flags, | ||
161 | per_cpu(resched_name, cpu), action->dev_id); | ||
162 | per_cpu(resched_irq, cpu) = irq; | ||
163 | break; | ||
164 | case IA64_IPI_VECTOR: | ||
165 | snprintf(per_cpu(ipi_name, cpu), | ||
166 | sizeof(per_cpu(ipi_name, cpu)), | ||
167 | "%s%d", action->name, cpu); | ||
168 | irq = bind_ipi_to_irqhandler(XEN_IPI_VECTOR, cpu, | ||
169 | action->handler, action->flags, | ||
170 | per_cpu(ipi_name, cpu), action->dev_id); | ||
171 | per_cpu(ipi_irq, cpu) = irq; | ||
172 | break; | ||
173 | case IA64_CMC_VECTOR: | ||
174 | snprintf(per_cpu(cmc_name, cpu), | ||
175 | sizeof(per_cpu(cmc_name, cpu)), | ||
176 | "%s%d", action->name, cpu); | ||
177 | irq = bind_virq_to_irqhandler(VIRQ_MCA_CMC, cpu, | ||
178 | action->handler, | ||
179 | action->flags, | ||
180 | per_cpu(cmc_name, cpu), | ||
181 | action->dev_id); | ||
182 | per_cpu(cmc_irq, cpu) = irq; | ||
183 | break; | ||
184 | case IA64_CMCP_VECTOR: | ||
185 | snprintf(per_cpu(cmcp_name, cpu), | ||
186 | sizeof(per_cpu(cmcp_name, cpu)), | ||
187 | "%s%d", action->name, cpu); | ||
188 | irq = bind_ipi_to_irqhandler(XEN_CMCP_VECTOR, cpu, | ||
189 | action->handler, | ||
190 | action->flags, | ||
191 | per_cpu(cmcp_name, cpu), | ||
192 | action->dev_id); | ||
193 | per_cpu(cmcp_irq, cpu) = irq; | ||
194 | break; | ||
195 | case IA64_CPEP_VECTOR: | ||
196 | snprintf(per_cpu(cpep_name, cpu), | ||
197 | sizeof(per_cpu(cpep_name, cpu)), | ||
198 | "%s%d", action->name, cpu); | ||
199 | irq = bind_ipi_to_irqhandler(XEN_CPEP_VECTOR, cpu, | ||
200 | action->handler, | ||
201 | action->flags, | ||
202 | per_cpu(cpep_name, cpu), | ||
203 | action->dev_id); | ||
204 | per_cpu(cpep_irq, cpu) = irq; | ||
205 | break; | ||
206 | case IA64_CPE_VECTOR: | ||
207 | case IA64_MCA_RENDEZ_VECTOR: | ||
208 | case IA64_PERFMON_VECTOR: | ||
209 | case IA64_MCA_WAKEUP_VECTOR: | ||
210 | case IA64_SPURIOUS_INT_VECTOR: | ||
211 | /* No need to complain, these aren't supported. */ | ||
212 | break; | ||
213 | default: | ||
214 | printk(KERN_WARNING "Percpu irq %d is unsupported " | ||
215 | "by xen!\n", vec); | ||
216 | break; | ||
217 | } | ||
218 | BUG_ON(irq < 0); | ||
219 | |||
220 | if (irq > 0) { | ||
221 | /* | ||
222 | * Mark percpu. Without this, migrate_irqs() will | ||
223 | * mark the interrupt for migrations and trigger it | ||
224 | * on cpu hotplug. | ||
225 | */ | ||
226 | desc = irq_desc + irq; | ||
227 | desc->status |= IRQ_PER_CPU; | ||
228 | } | ||
229 | } | ||
230 | |||
231 | /* For BSP, we cache registered percpu irqs, and then re-walk | ||
232 | * them when initializing APs | ||
233 | */ | ||
234 | if (!cpu && save) { | ||
235 | BUG_ON(saved_irq_cnt == MAX_LATE_IRQ); | ||
236 | saved_percpu_irqs[saved_irq_cnt].irq = vec; | ||
237 | saved_percpu_irqs[saved_irq_cnt].action = action; | ||
238 | saved_irq_cnt++; | ||
239 | if (!xen_slab_ready) | ||
240 | late_irq_cnt++; | ||
241 | } | ||
242 | } | ||
243 | |||
244 | static void | ||
245 | xen_register_percpu_irq(ia64_vector vec, struct irqaction *action) | ||
246 | { | ||
247 | __xen_register_percpu_irq(smp_processor_id(), vec, action, 1); | ||
248 | } | ||
249 | |||
250 | static void | ||
251 | xen_bind_early_percpu_irq(void) | ||
252 | { | ||
253 | int i; | ||
254 | |||
255 | xen_slab_ready = 1; | ||
256 | /* There's no race when accessing this cached array, since only | ||
257 | * BSP will face with such step shortly | ||
258 | */ | ||
259 | for (i = 0; i < late_irq_cnt; i++) | ||
260 | __xen_register_percpu_irq(smp_processor_id(), | ||
261 | saved_percpu_irqs[i].irq, | ||
262 | saved_percpu_irqs[i].action, 0); | ||
263 | } | ||
264 | |||
265 | /* FIXME: There's no obvious point to check whether slab is ready. So | ||
266 | * a hack is used here by utilizing a late time hook. | ||
267 | */ | ||
268 | |||
269 | #ifdef CONFIG_HOTPLUG_CPU | ||
270 | static int __devinit | ||
271 | unbind_evtchn_callback(struct notifier_block *nfb, | ||
272 | unsigned long action, void *hcpu) | ||
273 | { | ||
274 | unsigned int cpu = (unsigned long)hcpu; | ||
275 | |||
276 | if (action == CPU_DEAD) { | ||
277 | /* Unregister evtchn. */ | ||
278 | if (per_cpu(cpep_irq, cpu) >= 0) { | ||
279 | unbind_from_irqhandler(per_cpu(cpep_irq, cpu), NULL); | ||
280 | per_cpu(cpep_irq, cpu) = -1; | ||
281 | } | ||
282 | if (per_cpu(cmcp_irq, cpu) >= 0) { | ||
283 | unbind_from_irqhandler(per_cpu(cmcp_irq, cpu), NULL); | ||
284 | per_cpu(cmcp_irq, cpu) = -1; | ||
285 | } | ||
286 | if (per_cpu(cmc_irq, cpu) >= 0) { | ||
287 | unbind_from_irqhandler(per_cpu(cmc_irq, cpu), NULL); | ||
288 | per_cpu(cmc_irq, cpu) = -1; | ||
289 | } | ||
290 | if (per_cpu(ipi_irq, cpu) >= 0) { | ||
291 | unbind_from_irqhandler(per_cpu(ipi_irq, cpu), NULL); | ||
292 | per_cpu(ipi_irq, cpu) = -1; | ||
293 | } | ||
294 | if (per_cpu(resched_irq, cpu) >= 0) { | ||
295 | unbind_from_irqhandler(per_cpu(resched_irq, cpu), | ||
296 | NULL); | ||
297 | per_cpu(resched_irq, cpu) = -1; | ||
298 | } | ||
299 | if (per_cpu(timer_irq, cpu) >= 0) { | ||
300 | unbind_from_irqhandler(per_cpu(timer_irq, cpu), NULL); | ||
301 | per_cpu(timer_irq, cpu) = -1; | ||
302 | } | ||
303 | } | ||
304 | return NOTIFY_OK; | ||
305 | } | ||
306 | |||
307 | static struct notifier_block unbind_evtchn_notifier = { | ||
308 | .notifier_call = unbind_evtchn_callback, | ||
309 | .priority = 0 | ||
310 | }; | ||
311 | #endif | ||
312 | |||
313 | void xen_smp_intr_init_early(unsigned int cpu) | ||
314 | { | ||
315 | #ifdef CONFIG_SMP | ||
316 | unsigned int i; | ||
317 | |||
318 | for (i = 0; i < saved_irq_cnt; i++) | ||
319 | __xen_register_percpu_irq(cpu, saved_percpu_irqs[i].irq, | ||
320 | saved_percpu_irqs[i].action, 0); | ||
321 | #endif | ||
322 | } | ||
323 | |||
324 | void xen_smp_intr_init(void) | ||
325 | { | ||
326 | #ifdef CONFIG_SMP | ||
327 | unsigned int cpu = smp_processor_id(); | ||
328 | struct callback_register event = { | ||
329 | .type = CALLBACKTYPE_event, | ||
330 | .address = { .ip = (unsigned long)&xen_event_callback }, | ||
331 | }; | ||
332 | |||
333 | if (cpu == 0) { | ||
334 | /* Initialization was already done for boot cpu. */ | ||
335 | #ifdef CONFIG_HOTPLUG_CPU | ||
336 | /* Register the notifier only once. */ | ||
337 | register_cpu_notifier(&unbind_evtchn_notifier); | ||
338 | #endif | ||
339 | return; | ||
340 | } | ||
341 | |||
342 | /* This should be piggyback when setup vcpu guest context */ | ||
343 | BUG_ON(HYPERVISOR_callback_op(CALLBACKOP_register, &event)); | ||
344 | #endif /* CONFIG_SMP */ | ||
345 | } | ||
346 | |||
347 | void __init | ||
348 | xen_irq_init(void) | ||
349 | { | ||
350 | struct callback_register event = { | ||
351 | .type = CALLBACKTYPE_event, | ||
352 | .address = { .ip = (unsigned long)&xen_event_callback }, | ||
353 | }; | ||
354 | |||
355 | xen_init_IRQ(); | ||
356 | BUG_ON(HYPERVISOR_callback_op(CALLBACKOP_register, &event)); | ||
357 | late_time_init = xen_bind_early_percpu_irq; | ||
358 | } | ||
359 | |||
360 | void | ||
361 | xen_platform_send_ipi(int cpu, int vector, int delivery_mode, int redirect) | ||
362 | { | ||
363 | #ifdef CONFIG_SMP | ||
364 | /* TODO: we need to call vcpu_up here */ | ||
365 | if (unlikely(vector == ap_wakeup_vector)) { | ||
366 | /* XXX | ||
367 | * This should be in __cpu_up(cpu) in ia64 smpboot.c | ||
368 | * like x86. But don't want to modify it, | ||
369 | * keep it untouched. | ||
370 | */ | ||
371 | xen_smp_intr_init_early(cpu); | ||
372 | |||
373 | xen_send_ipi(cpu, vector); | ||
374 | /* vcpu_prepare_and_up(cpu); */ | ||
375 | return; | ||
376 | } | ||
377 | #endif | ||
378 | |||
379 | switch (vector) { | ||
380 | case IA64_IPI_VECTOR: | ||
381 | xen_send_IPI_one(cpu, XEN_IPI_VECTOR); | ||
382 | break; | ||
383 | case IA64_IPI_RESCHEDULE: | ||
384 | xen_send_IPI_one(cpu, XEN_RESCHEDULE_VECTOR); | ||
385 | break; | ||
386 | case IA64_CMCP_VECTOR: | ||
387 | xen_send_IPI_one(cpu, XEN_CMCP_VECTOR); | ||
388 | break; | ||
389 | case IA64_CPEP_VECTOR: | ||
390 | xen_send_IPI_one(cpu, XEN_CPEP_VECTOR); | ||
391 | break; | ||
392 | case IA64_TIMER_VECTOR: { | ||
393 | /* this is used only once by check_sal_cache_flush() | ||
394 | at boot time */ | ||
395 | static int used = 0; | ||
396 | if (!used) { | ||
397 | xen_send_ipi(cpu, IA64_TIMER_VECTOR); | ||
398 | used = 1; | ||
399 | break; | ||
400 | } | ||
401 | /* fallthrough */ | ||
402 | } | ||
403 | default: | ||
404 | printk(KERN_WARNING "Unsupported IPI type 0x%x\n", | ||
405 | vector); | ||
406 | notify_remote_via_irq(0); /* defaults to 0 irq */ | ||
407 | break; | ||
408 | } | ||
409 | } | ||
410 | |||
411 | static void __init | ||
412 | xen_register_ipi(void) | ||
413 | { | ||
414 | #ifdef CONFIG_SMP | ||
415 | register_percpu_irq(IA64_IPI_VECTOR, &xen_ipi_irqaction); | ||
416 | register_percpu_irq(IA64_IPI_RESCHEDULE, &xen_resched_irqaction); | ||
417 | register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, &xen_tlb_irqaction); | ||
418 | #endif | ||
419 | } | ||
420 | |||
421 | static void | ||
422 | xen_resend_irq(unsigned int vector) | ||
423 | { | ||
424 | (void)resend_irq_on_evtchn(vector); | ||
425 | } | ||
426 | |||
427 | const struct pv_irq_ops xen_irq_ops __initdata = { | ||
428 | .register_ipi = xen_register_ipi, | ||
429 | |||
430 | .assign_irq_vector = xen_assign_irq_vector, | ||
431 | .free_irq_vector = xen_free_irq_vector, | ||
432 | .register_percpu_irq = xen_register_percpu_irq, | ||
433 | |||
434 | .resend_irq = xen_resend_irq, | ||
435 | }; | ||
diff --git a/arch/ia64/xen/irq_xen.h b/arch/ia64/xen/irq_xen.h new file mode 100644 index 000000000000..26110f330c87 --- /dev/null +++ b/arch/ia64/xen/irq_xen.h | |||
@@ -0,0 +1,34 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/xen/irq_xen.h | ||
3 | * | ||
4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | |||
23 | #ifndef IRQ_XEN_H | ||
24 | #define IRQ_XEN_H | ||
25 | |||
26 | extern void (*late_time_init)(void); | ||
27 | extern char xen_event_callback; | ||
28 | void __init xen_init_IRQ(void); | ||
29 | |||
30 | extern const struct pv_irq_ops xen_irq_ops __initdata; | ||
31 | extern void xen_smp_intr_init(void); | ||
32 | extern void xen_send_ipi(int cpu, int vec); | ||
33 | |||
34 | #endif /* IRQ_XEN_H */ | ||
diff --git a/arch/ia64/xen/machvec.c b/arch/ia64/xen/machvec.c new file mode 100644 index 000000000000..4ad588a7c279 --- /dev/null +++ b/arch/ia64/xen/machvec.c | |||
@@ -0,0 +1,4 @@ | |||
1 | #define MACHVEC_PLATFORM_NAME xen | ||
2 | #define MACHVEC_PLATFORM_HEADER <asm/machvec_xen.h> | ||
3 | #include <asm/machvec_init.h> | ||
4 | |||
diff --git a/arch/ia64/xen/suspend.c b/arch/ia64/xen/suspend.c new file mode 100644 index 000000000000..fd66b048c6fa --- /dev/null +++ b/arch/ia64/xen/suspend.c | |||
@@ -0,0 +1,64 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/xen/suspend.c | ||
3 | * | ||
4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | * suspend/resume | ||
22 | */ | ||
23 | |||
24 | #include <xen/xen-ops.h> | ||
25 | #include <asm/xen/hypervisor.h> | ||
26 | #include "time.h" | ||
27 | |||
28 | void | ||
29 | xen_mm_pin_all(void) | ||
30 | { | ||
31 | /* nothing */ | ||
32 | } | ||
33 | |||
34 | void | ||
35 | xen_mm_unpin_all(void) | ||
36 | { | ||
37 | /* nothing */ | ||
38 | } | ||
39 | |||
40 | void xen_pre_device_suspend(void) | ||
41 | { | ||
42 | /* nothing */ | ||
43 | } | ||
44 | |||
45 | void | ||
46 | xen_pre_suspend() | ||
47 | { | ||
48 | /* nothing */ | ||
49 | } | ||
50 | |||
51 | void | ||
52 | xen_post_suspend(int suspend_cancelled) | ||
53 | { | ||
54 | if (suspend_cancelled) | ||
55 | return; | ||
56 | |||
57 | xen_ia64_enable_opt_feature(); | ||
58 | /* add more if necessary */ | ||
59 | } | ||
60 | |||
61 | void xen_arch_resume(void) | ||
62 | { | ||
63 | xen_timer_resume_on_aps(); | ||
64 | } | ||
diff --git a/arch/ia64/xen/time.c b/arch/ia64/xen/time.c new file mode 100644 index 000000000000..d15a94c330fb --- /dev/null +++ b/arch/ia64/xen/time.c | |||
@@ -0,0 +1,213 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/xen/time.c | ||
3 | * | ||
4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | |||
23 | #include <linux/delay.h> | ||
24 | #include <linux/kernel_stat.h> | ||
25 | #include <linux/posix-timers.h> | ||
26 | #include <linux/irq.h> | ||
27 | #include <linux/clocksource.h> | ||
28 | |||
29 | #include <asm/timex.h> | ||
30 | |||
31 | #include <asm/xen/hypervisor.h> | ||
32 | |||
33 | #include <xen/interface/vcpu.h> | ||
34 | |||
35 | #include "../kernel/fsyscall_gtod_data.h" | ||
36 | |||
37 | DEFINE_PER_CPU(struct vcpu_runstate_info, runstate); | ||
38 | DEFINE_PER_CPU(unsigned long, processed_stolen_time); | ||
39 | DEFINE_PER_CPU(unsigned long, processed_blocked_time); | ||
40 | |||
41 | /* taken from i386/kernel/time-xen.c */ | ||
42 | static void xen_init_missing_ticks_accounting(int cpu) | ||
43 | { | ||
44 | struct vcpu_register_runstate_memory_area area; | ||
45 | struct vcpu_runstate_info *runstate = &per_cpu(runstate, cpu); | ||
46 | int rc; | ||
47 | |||
48 | memset(runstate, 0, sizeof(*runstate)); | ||
49 | |||
50 | area.addr.v = runstate; | ||
51 | rc = HYPERVISOR_vcpu_op(VCPUOP_register_runstate_memory_area, cpu, | ||
52 | &area); | ||
53 | WARN_ON(rc && rc != -ENOSYS); | ||
54 | |||
55 | per_cpu(processed_blocked_time, cpu) = runstate->time[RUNSTATE_blocked]; | ||
56 | per_cpu(processed_stolen_time, cpu) = runstate->time[RUNSTATE_runnable] | ||
57 | + runstate->time[RUNSTATE_offline]; | ||
58 | } | ||
59 | |||
60 | /* | ||
61 | * Runstate accounting | ||
62 | */ | ||
63 | /* stolen from arch/x86/xen/time.c */ | ||
64 | static void get_runstate_snapshot(struct vcpu_runstate_info *res) | ||
65 | { | ||
66 | u64 state_time; | ||
67 | struct vcpu_runstate_info *state; | ||
68 | |||
69 | BUG_ON(preemptible()); | ||
70 | |||
71 | state = &__get_cpu_var(runstate); | ||
72 | |||
73 | /* | ||
74 | * The runstate info is always updated by the hypervisor on | ||
75 | * the current CPU, so there's no need to use anything | ||
76 | * stronger than a compiler barrier when fetching it. | ||
77 | */ | ||
78 | do { | ||
79 | state_time = state->state_entry_time; | ||
80 | rmb(); | ||
81 | *res = *state; | ||
82 | rmb(); | ||
83 | } while (state->state_entry_time != state_time); | ||
84 | } | ||
85 | |||
86 | #define NS_PER_TICK (1000000000LL/HZ) | ||
87 | |||
88 | static unsigned long | ||
89 | consider_steal_time(unsigned long new_itm) | ||
90 | { | ||
91 | unsigned long stolen, blocked; | ||
92 | unsigned long delta_itm = 0, stolentick = 0; | ||
93 | int cpu = smp_processor_id(); | ||
94 | struct vcpu_runstate_info runstate; | ||
95 | struct task_struct *p = current; | ||
96 | |||
97 | get_runstate_snapshot(&runstate); | ||
98 | |||
99 | /* | ||
100 | * Check for vcpu migration effect | ||
101 | * In this case, itc value is reversed. | ||
102 | * This causes huge stolen value. | ||
103 | * This function just checks and reject this effect. | ||
104 | */ | ||
105 | if (!time_after_eq(runstate.time[RUNSTATE_blocked], | ||
106 | per_cpu(processed_blocked_time, cpu))) | ||
107 | blocked = 0; | ||
108 | |||
109 | if (!time_after_eq(runstate.time[RUNSTATE_runnable] + | ||
110 | runstate.time[RUNSTATE_offline], | ||
111 | per_cpu(processed_stolen_time, cpu))) | ||
112 | stolen = 0; | ||
113 | |||
114 | if (!time_after(delta_itm + new_itm, ia64_get_itc())) | ||
115 | stolentick = ia64_get_itc() - new_itm; | ||
116 | |||
117 | do_div(stolentick, NS_PER_TICK); | ||
118 | stolentick++; | ||
119 | |||
120 | do_div(stolen, NS_PER_TICK); | ||
121 | |||
122 | if (stolen > stolentick) | ||
123 | stolen = stolentick; | ||
124 | |||
125 | stolentick -= stolen; | ||
126 | do_div(blocked, NS_PER_TICK); | ||
127 | |||
128 | if (blocked > stolentick) | ||
129 | blocked = stolentick; | ||
130 | |||
131 | if (stolen > 0 || blocked > 0) { | ||
132 | account_steal_time(NULL, jiffies_to_cputime(stolen)); | ||
133 | account_steal_time(idle_task(cpu), jiffies_to_cputime(blocked)); | ||
134 | run_local_timers(); | ||
135 | |||
136 | if (rcu_pending(cpu)) | ||
137 | rcu_check_callbacks(cpu, user_mode(get_irq_regs())); | ||
138 | |||
139 | scheduler_tick(); | ||
140 | run_posix_cpu_timers(p); | ||
141 | delta_itm += local_cpu_data->itm_delta * (stolen + blocked); | ||
142 | |||
143 | if (cpu == time_keeper_id) { | ||
144 | write_seqlock(&xtime_lock); | ||
145 | do_timer(stolen + blocked); | ||
146 | local_cpu_data->itm_next = delta_itm + new_itm; | ||
147 | write_sequnlock(&xtime_lock); | ||
148 | } else { | ||
149 | local_cpu_data->itm_next = delta_itm + new_itm; | ||
150 | } | ||
151 | per_cpu(processed_stolen_time, cpu) += NS_PER_TICK * stolen; | ||
152 | per_cpu(processed_blocked_time, cpu) += NS_PER_TICK * blocked; | ||
153 | } | ||
154 | return delta_itm; | ||
155 | } | ||
156 | |||
157 | static int xen_do_steal_accounting(unsigned long *new_itm) | ||
158 | { | ||
159 | unsigned long delta_itm; | ||
160 | delta_itm = consider_steal_time(*new_itm); | ||
161 | *new_itm += delta_itm; | ||
162 | if (time_after(*new_itm, ia64_get_itc()) && delta_itm) | ||
163 | return 1; | ||
164 | |||
165 | return 0; | ||
166 | } | ||
167 | |||
168 | static void xen_itc_jitter_data_reset(void) | ||
169 | { | ||
170 | u64 lcycle, ret; | ||
171 | |||
172 | do { | ||
173 | lcycle = itc_jitter_data.itc_lastcycle; | ||
174 | ret = cmpxchg(&itc_jitter_data.itc_lastcycle, lcycle, 0); | ||
175 | } while (unlikely(ret != lcycle)); | ||
176 | } | ||
177 | |||
178 | struct pv_time_ops xen_time_ops __initdata = { | ||
179 | .init_missing_ticks_accounting = xen_init_missing_ticks_accounting, | ||
180 | .do_steal_accounting = xen_do_steal_accounting, | ||
181 | .clocksource_resume = xen_itc_jitter_data_reset, | ||
182 | }; | ||
183 | |||
184 | /* Called after suspend, to resume time. */ | ||
185 | static void xen_local_tick_resume(void) | ||
186 | { | ||
187 | /* Just trigger a tick. */ | ||
188 | ia64_cpu_local_tick(); | ||
189 | touch_softlockup_watchdog(); | ||
190 | } | ||
191 | |||
192 | void | ||
193 | xen_timer_resume(void) | ||
194 | { | ||
195 | unsigned int cpu; | ||
196 | |||
197 | xen_local_tick_resume(); | ||
198 | |||
199 | for_each_online_cpu(cpu) | ||
200 | xen_init_missing_ticks_accounting(cpu); | ||
201 | } | ||
202 | |||
203 | static void ia64_cpu_local_tick_fn(void *unused) | ||
204 | { | ||
205 | xen_local_tick_resume(); | ||
206 | xen_init_missing_ticks_accounting(smp_processor_id()); | ||
207 | } | ||
208 | |||
209 | void | ||
210 | xen_timer_resume_on_aps(void) | ||
211 | { | ||
212 | smp_call_function(&ia64_cpu_local_tick_fn, NULL, 1); | ||
213 | } | ||
diff --git a/arch/ia64/xen/time.h b/arch/ia64/xen/time.h new file mode 100644 index 000000000000..f98d7e1a42f0 --- /dev/null +++ b/arch/ia64/xen/time.h | |||
@@ -0,0 +1,24 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/xen/time.h | ||
3 | * | ||
4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | |||
23 | extern struct pv_time_ops xen_time_ops __initdata; | ||
24 | void xen_timer_resume_on_aps(void); | ||
diff --git a/arch/ia64/xen/xcom_hcall.c b/arch/ia64/xen/xcom_hcall.c new file mode 100644 index 000000000000..ccaf7431f7c8 --- /dev/null +++ b/arch/ia64/xen/xcom_hcall.c | |||
@@ -0,0 +1,441 @@ | |||
1 | /* | ||
2 | * This program is free software; you can redistribute it and/or modify | ||
3 | * it under the terms of the GNU General Public License as published by | ||
4 | * the Free Software Foundation; either version 2 of the License, or | ||
5 | * (at your option) any later version. | ||
6 | * | ||
7 | * This program is distributed in the hope that it will be useful, | ||
8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
10 | * GNU General Public License for more details. | ||
11 | * | ||
12 | * You should have received a copy of the GNU General Public License | ||
13 | * along with this program; if not, write to the Free Software | ||
14 | * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | ||
15 | * | ||
16 | * Tristan Gingold <tristan.gingold@bull.net> | ||
17 | * | ||
18 | * Copyright (c) 2007 | ||
19 | * Isaku Yamahata <yamahata at valinux co jp> | ||
20 | * VA Linux Systems Japan K.K. | ||
21 | * consolidate mini and inline version. | ||
22 | */ | ||
23 | |||
24 | #include <linux/module.h> | ||
25 | #include <xen/interface/xen.h> | ||
26 | #include <xen/interface/memory.h> | ||
27 | #include <xen/interface/grant_table.h> | ||
28 | #include <xen/interface/callback.h> | ||
29 | #include <xen/interface/vcpu.h> | ||
30 | #include <asm/xen/hypervisor.h> | ||
31 | #include <asm/xen/xencomm.h> | ||
32 | |||
33 | /* Xencomm notes: | ||
34 | * This file defines hypercalls to be used by xencomm. The hypercalls simply | ||
35 | * create inlines or mini descriptors for pointers and then call the raw arch | ||
36 | * hypercall xencomm_arch_hypercall_XXX | ||
37 | * | ||
38 | * If the arch wants to directly use these hypercalls, simply define macros | ||
39 | * in asm/xen/hypercall.h, eg: | ||
40 | * #define HYPERVISOR_sched_op xencomm_hypercall_sched_op | ||
41 | * | ||
42 | * The arch may also define HYPERVISOR_xxx as a function and do more operations | ||
43 | * before/after doing the hypercall. | ||
44 | * | ||
45 | * Note: because only inline or mini descriptors are created these functions | ||
46 | * must only be called with in kernel memory parameters. | ||
47 | */ | ||
48 | |||
49 | int | ||
50 | xencomm_hypercall_console_io(int cmd, int count, char *str) | ||
51 | { | ||
52 | /* xen early printk uses console io hypercall before | ||
53 | * xencomm initialization. In that case, we just ignore it. | ||
54 | */ | ||
55 | if (!xencomm_is_initialized()) | ||
56 | return 0; | ||
57 | |||
58 | return xencomm_arch_hypercall_console_io | ||
59 | (cmd, count, xencomm_map_no_alloc(str, count)); | ||
60 | } | ||
61 | EXPORT_SYMBOL_GPL(xencomm_hypercall_console_io); | ||
62 | |||
63 | int | ||
64 | xencomm_hypercall_event_channel_op(int cmd, void *op) | ||
65 | { | ||
66 | struct xencomm_handle *desc; | ||
67 | desc = xencomm_map_no_alloc(op, sizeof(struct evtchn_op)); | ||
68 | if (desc == NULL) | ||
69 | return -EINVAL; | ||
70 | |||
71 | return xencomm_arch_hypercall_event_channel_op(cmd, desc); | ||
72 | } | ||
73 | EXPORT_SYMBOL_GPL(xencomm_hypercall_event_channel_op); | ||
74 | |||
75 | int | ||
76 | xencomm_hypercall_xen_version(int cmd, void *arg) | ||
77 | { | ||
78 | struct xencomm_handle *desc; | ||
79 | unsigned int argsize; | ||
80 | |||
81 | switch (cmd) { | ||
82 | case XENVER_version: | ||
83 | /* do not actually pass an argument */ | ||
84 | return xencomm_arch_hypercall_xen_version(cmd, 0); | ||
85 | case XENVER_extraversion: | ||
86 | argsize = sizeof(struct xen_extraversion); | ||
87 | break; | ||
88 | case XENVER_compile_info: | ||
89 | argsize = sizeof(struct xen_compile_info); | ||
90 | break; | ||
91 | case XENVER_capabilities: | ||
92 | argsize = sizeof(struct xen_capabilities_info); | ||
93 | break; | ||
94 | case XENVER_changeset: | ||
95 | argsize = sizeof(struct xen_changeset_info); | ||
96 | break; | ||
97 | case XENVER_platform_parameters: | ||
98 | argsize = sizeof(struct xen_platform_parameters); | ||
99 | break; | ||
100 | case XENVER_get_features: | ||
101 | argsize = (arg == NULL) ? 0 : sizeof(struct xen_feature_info); | ||
102 | break; | ||
103 | |||
104 | default: | ||
105 | printk(KERN_DEBUG | ||
106 | "%s: unknown version op %d\n", __func__, cmd); | ||
107 | return -ENOSYS; | ||
108 | } | ||
109 | |||
110 | desc = xencomm_map_no_alloc(arg, argsize); | ||
111 | if (desc == NULL) | ||
112 | return -EINVAL; | ||
113 | |||
114 | return xencomm_arch_hypercall_xen_version(cmd, desc); | ||
115 | } | ||
116 | EXPORT_SYMBOL_GPL(xencomm_hypercall_xen_version); | ||
117 | |||
118 | int | ||
119 | xencomm_hypercall_physdev_op(int cmd, void *op) | ||
120 | { | ||
121 | unsigned int argsize; | ||
122 | |||
123 | switch (cmd) { | ||
124 | case PHYSDEVOP_apic_read: | ||
125 | case PHYSDEVOP_apic_write: | ||
126 | argsize = sizeof(struct physdev_apic); | ||
127 | break; | ||
128 | case PHYSDEVOP_alloc_irq_vector: | ||
129 | case PHYSDEVOP_free_irq_vector: | ||
130 | argsize = sizeof(struct physdev_irq); | ||
131 | break; | ||
132 | case PHYSDEVOP_irq_status_query: | ||
133 | argsize = sizeof(struct physdev_irq_status_query); | ||
134 | break; | ||
135 | |||
136 | default: | ||
137 | printk(KERN_DEBUG | ||
138 | "%s: unknown physdev op %d\n", __func__, cmd); | ||
139 | return -ENOSYS; | ||
140 | } | ||
141 | |||
142 | return xencomm_arch_hypercall_physdev_op | ||
143 | (cmd, xencomm_map_no_alloc(op, argsize)); | ||
144 | } | ||
145 | |||
146 | static int | ||
147 | xencommize_grant_table_op(struct xencomm_mini **xc_area, | ||
148 | unsigned int cmd, void *op, unsigned int count, | ||
149 | struct xencomm_handle **desc) | ||
150 | { | ||
151 | struct xencomm_handle *desc1; | ||
152 | unsigned int argsize; | ||
153 | |||
154 | switch (cmd) { | ||
155 | case GNTTABOP_map_grant_ref: | ||
156 | argsize = sizeof(struct gnttab_map_grant_ref); | ||
157 | break; | ||
158 | case GNTTABOP_unmap_grant_ref: | ||
159 | argsize = sizeof(struct gnttab_unmap_grant_ref); | ||
160 | break; | ||
161 | case GNTTABOP_setup_table: | ||
162 | { | ||
163 | struct gnttab_setup_table *setup = op; | ||
164 | |||
165 | argsize = sizeof(*setup); | ||
166 | |||
167 | if (count != 1) | ||
168 | return -EINVAL; | ||
169 | desc1 = __xencomm_map_no_alloc | ||
170 | (xen_guest_handle(setup->frame_list), | ||
171 | setup->nr_frames * | ||
172 | sizeof(*xen_guest_handle(setup->frame_list)), | ||
173 | *xc_area); | ||
174 | if (desc1 == NULL) | ||
175 | return -EINVAL; | ||
176 | (*xc_area)++; | ||
177 | set_xen_guest_handle(setup->frame_list, (void *)desc1); | ||
178 | break; | ||
179 | } | ||
180 | case GNTTABOP_dump_table: | ||
181 | argsize = sizeof(struct gnttab_dump_table); | ||
182 | break; | ||
183 | case GNTTABOP_transfer: | ||
184 | argsize = sizeof(struct gnttab_transfer); | ||
185 | break; | ||
186 | case GNTTABOP_copy: | ||
187 | argsize = sizeof(struct gnttab_copy); | ||
188 | break; | ||
189 | case GNTTABOP_query_size: | ||
190 | argsize = sizeof(struct gnttab_query_size); | ||
191 | break; | ||
192 | default: | ||
193 | printk(KERN_DEBUG "%s: unknown hypercall grant table op %d\n", | ||
194 | __func__, cmd); | ||
195 | BUG(); | ||
196 | } | ||
197 | |||
198 | *desc = __xencomm_map_no_alloc(op, count * argsize, *xc_area); | ||
199 | if (*desc == NULL) | ||
200 | return -EINVAL; | ||
201 | (*xc_area)++; | ||
202 | |||
203 | return 0; | ||
204 | } | ||
205 | |||
206 | int | ||
207 | xencomm_hypercall_grant_table_op(unsigned int cmd, void *op, | ||
208 | unsigned int count) | ||
209 | { | ||
210 | int rc; | ||
211 | struct xencomm_handle *desc; | ||
212 | XENCOMM_MINI_ALIGNED(xc_area, 2); | ||
213 | |||
214 | rc = xencommize_grant_table_op(&xc_area, cmd, op, count, &desc); | ||
215 | if (rc) | ||
216 | return rc; | ||
217 | |||
218 | return xencomm_arch_hypercall_grant_table_op(cmd, desc, count); | ||
219 | } | ||
220 | EXPORT_SYMBOL_GPL(xencomm_hypercall_grant_table_op); | ||
221 | |||
222 | int | ||
223 | xencomm_hypercall_sched_op(int cmd, void *arg) | ||
224 | { | ||
225 | struct xencomm_handle *desc; | ||
226 | unsigned int argsize; | ||
227 | |||
228 | switch (cmd) { | ||
229 | case SCHEDOP_yield: | ||
230 | case SCHEDOP_block: | ||
231 | argsize = 0; | ||
232 | break; | ||
233 | case SCHEDOP_shutdown: | ||
234 | argsize = sizeof(struct sched_shutdown); | ||
235 | break; | ||
236 | case SCHEDOP_poll: | ||
237 | { | ||
238 | struct sched_poll *poll = arg; | ||
239 | struct xencomm_handle *ports; | ||
240 | |||
241 | argsize = sizeof(struct sched_poll); | ||
242 | ports = xencomm_map_no_alloc(xen_guest_handle(poll->ports), | ||
243 | sizeof(*xen_guest_handle(poll->ports))); | ||
244 | |||
245 | set_xen_guest_handle(poll->ports, (void *)ports); | ||
246 | break; | ||
247 | } | ||
248 | default: | ||
249 | printk(KERN_DEBUG "%s: unknown sched op %d\n", __func__, cmd); | ||
250 | return -ENOSYS; | ||
251 | } | ||
252 | |||
253 | desc = xencomm_map_no_alloc(arg, argsize); | ||
254 | if (desc == NULL) | ||
255 | return -EINVAL; | ||
256 | |||
257 | return xencomm_arch_hypercall_sched_op(cmd, desc); | ||
258 | } | ||
259 | EXPORT_SYMBOL_GPL(xencomm_hypercall_sched_op); | ||
260 | |||
261 | int | ||
262 | xencomm_hypercall_multicall(void *call_list, int nr_calls) | ||
263 | { | ||
264 | int rc; | ||
265 | int i; | ||
266 | struct multicall_entry *mce; | ||
267 | struct xencomm_handle *desc; | ||
268 | XENCOMM_MINI_ALIGNED(xc_area, nr_calls * 2); | ||
269 | |||
270 | for (i = 0; i < nr_calls; i++) { | ||
271 | mce = (struct multicall_entry *)call_list + i; | ||
272 | |||
273 | switch (mce->op) { | ||
274 | case __HYPERVISOR_update_va_mapping: | ||
275 | case __HYPERVISOR_mmu_update: | ||
276 | /* No-op on ia64. */ | ||
277 | break; | ||
278 | case __HYPERVISOR_grant_table_op: | ||
279 | rc = xencommize_grant_table_op | ||
280 | (&xc_area, | ||
281 | mce->args[0], (void *)mce->args[1], | ||
282 | mce->args[2], &desc); | ||
283 | if (rc) | ||
284 | return rc; | ||
285 | mce->args[1] = (unsigned long)desc; | ||
286 | break; | ||
287 | case __HYPERVISOR_memory_op: | ||
288 | default: | ||
289 | printk(KERN_DEBUG | ||
290 | "%s: unhandled multicall op entry op %lu\n", | ||
291 | __func__, mce->op); | ||
292 | return -ENOSYS; | ||
293 | } | ||
294 | } | ||
295 | |||
296 | desc = xencomm_map_no_alloc(call_list, | ||
297 | nr_calls * sizeof(struct multicall_entry)); | ||
298 | if (desc == NULL) | ||
299 | return -EINVAL; | ||
300 | |||
301 | return xencomm_arch_hypercall_multicall(desc, nr_calls); | ||
302 | } | ||
303 | EXPORT_SYMBOL_GPL(xencomm_hypercall_multicall); | ||
304 | |||
305 | int | ||
306 | xencomm_hypercall_callback_op(int cmd, void *arg) | ||
307 | { | ||
308 | unsigned int argsize; | ||
309 | switch (cmd) { | ||
310 | case CALLBACKOP_register: | ||
311 | argsize = sizeof(struct callback_register); | ||
312 | break; | ||
313 | case CALLBACKOP_unregister: | ||
314 | argsize = sizeof(struct callback_unregister); | ||
315 | break; | ||
316 | default: | ||
317 | printk(KERN_DEBUG | ||
318 | "%s: unknown callback op %d\n", __func__, cmd); | ||
319 | return -ENOSYS; | ||
320 | } | ||
321 | |||
322 | return xencomm_arch_hypercall_callback_op | ||
323 | (cmd, xencomm_map_no_alloc(arg, argsize)); | ||
324 | } | ||
325 | |||
326 | static int | ||
327 | xencommize_memory_reservation(struct xencomm_mini *xc_area, | ||
328 | struct xen_memory_reservation *mop) | ||
329 | { | ||
330 | struct xencomm_handle *desc; | ||
331 | |||
332 | desc = __xencomm_map_no_alloc(xen_guest_handle(mop->extent_start), | ||
333 | mop->nr_extents * | ||
334 | sizeof(*xen_guest_handle(mop->extent_start)), | ||
335 | xc_area); | ||
336 | if (desc == NULL) | ||
337 | return -EINVAL; | ||
338 | |||
339 | set_xen_guest_handle(mop->extent_start, (void *)desc); | ||
340 | return 0; | ||
341 | } | ||
342 | |||
343 | int | ||
344 | xencomm_hypercall_memory_op(unsigned int cmd, void *arg) | ||
345 | { | ||
346 | GUEST_HANDLE(xen_pfn_t) extent_start_va[2] = { {NULL}, {NULL} }; | ||
347 | struct xen_memory_reservation *xmr = NULL; | ||
348 | int rc; | ||
349 | struct xencomm_handle *desc; | ||
350 | unsigned int argsize; | ||
351 | XENCOMM_MINI_ALIGNED(xc_area, 2); | ||
352 | |||
353 | switch (cmd) { | ||
354 | case XENMEM_increase_reservation: | ||
355 | case XENMEM_decrease_reservation: | ||
356 | case XENMEM_populate_physmap: | ||
357 | xmr = (struct xen_memory_reservation *)arg; | ||
358 | set_xen_guest_handle(extent_start_va[0], | ||
359 | xen_guest_handle(xmr->extent_start)); | ||
360 | |||
361 | argsize = sizeof(*xmr); | ||
362 | rc = xencommize_memory_reservation(xc_area, xmr); | ||
363 | if (rc) | ||
364 | return rc; | ||
365 | xc_area++; | ||
366 | break; | ||
367 | |||
368 | case XENMEM_maximum_ram_page: | ||
369 | argsize = 0; | ||
370 | break; | ||
371 | |||
372 | case XENMEM_add_to_physmap: | ||
373 | argsize = sizeof(struct xen_add_to_physmap); | ||
374 | break; | ||
375 | |||
376 | default: | ||
377 | printk(KERN_DEBUG "%s: unknown memory op %d\n", __func__, cmd); | ||
378 | return -ENOSYS; | ||
379 | } | ||
380 | |||
381 | desc = xencomm_map_no_alloc(arg, argsize); | ||
382 | if (desc == NULL) | ||
383 | return -EINVAL; | ||
384 | |||
385 | rc = xencomm_arch_hypercall_memory_op(cmd, desc); | ||
386 | |||
387 | switch (cmd) { | ||
388 | case XENMEM_increase_reservation: | ||
389 | case XENMEM_decrease_reservation: | ||
390 | case XENMEM_populate_physmap: | ||
391 | set_xen_guest_handle(xmr->extent_start, | ||
392 | xen_guest_handle(extent_start_va[0])); | ||
393 | break; | ||
394 | } | ||
395 | |||
396 | return rc; | ||
397 | } | ||
398 | EXPORT_SYMBOL_GPL(xencomm_hypercall_memory_op); | ||
399 | |||
400 | int | ||
401 | xencomm_hypercall_suspend(unsigned long srec) | ||
402 | { | ||
403 | struct sched_shutdown arg; | ||
404 | |||
405 | arg.reason = SHUTDOWN_suspend; | ||
406 | |||
407 | return xencomm_arch_hypercall_sched_op( | ||
408 | SCHEDOP_shutdown, xencomm_map_no_alloc(&arg, sizeof(arg))); | ||
409 | } | ||
410 | |||
411 | long | ||
412 | xencomm_hypercall_vcpu_op(int cmd, int cpu, void *arg) | ||
413 | { | ||
414 | unsigned int argsize; | ||
415 | switch (cmd) { | ||
416 | case VCPUOP_register_runstate_memory_area: { | ||
417 | struct vcpu_register_runstate_memory_area *area = | ||
418 | (struct vcpu_register_runstate_memory_area *)arg; | ||
419 | argsize = sizeof(*arg); | ||
420 | set_xen_guest_handle(area->addr.h, | ||
421 | (void *)xencomm_map_no_alloc(area->addr.v, | ||
422 | sizeof(area->addr.v))); | ||
423 | break; | ||
424 | } | ||
425 | |||
426 | default: | ||
427 | printk(KERN_DEBUG "%s: unknown vcpu op %d\n", __func__, cmd); | ||
428 | return -ENOSYS; | ||
429 | } | ||
430 | |||
431 | return xencomm_arch_hypercall_vcpu_op(cmd, cpu, | ||
432 | xencomm_map_no_alloc(arg, argsize)); | ||
433 | } | ||
434 | |||
435 | long | ||
436 | xencomm_hypercall_opt_feature(void *arg) | ||
437 | { | ||
438 | return xencomm_arch_hypercall_opt_feature( | ||
439 | xencomm_map_no_alloc(arg, | ||
440 | sizeof(struct xen_ia64_opt_feature))); | ||
441 | } | ||
diff --git a/arch/ia64/xen/xen_pv_ops.c b/arch/ia64/xen/xen_pv_ops.c new file mode 100644 index 000000000000..04cd12350455 --- /dev/null +++ b/arch/ia64/xen/xen_pv_ops.c | |||
@@ -0,0 +1,364 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/xen/xen_pv_ops.c | ||
3 | * | ||
4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | |||
23 | #include <linux/console.h> | ||
24 | #include <linux/irq.h> | ||
25 | #include <linux/kernel.h> | ||
26 | #include <linux/pm.h> | ||
27 | |||
28 | #include <asm/xen/hypervisor.h> | ||
29 | #include <asm/xen/xencomm.h> | ||
30 | #include <asm/xen/privop.h> | ||
31 | |||
32 | #include "irq_xen.h" | ||
33 | #include "time.h" | ||
34 | |||
35 | /*************************************************************************** | ||
36 | * general info | ||
37 | */ | ||
38 | static struct pv_info xen_info __initdata = { | ||
39 | .kernel_rpl = 2, /* or 1: determin at runtime */ | ||
40 | .paravirt_enabled = 1, | ||
41 | .name = "Xen/ia64", | ||
42 | }; | ||
43 | |||
44 | #define IA64_RSC_PL_SHIFT 2 | ||
45 | #define IA64_RSC_PL_BIT_SIZE 2 | ||
46 | #define IA64_RSC_PL_MASK \ | ||
47 | (((1UL << IA64_RSC_PL_BIT_SIZE) - 1) << IA64_RSC_PL_SHIFT) | ||
48 | |||
49 | static void __init | ||
50 | xen_info_init(void) | ||
51 | { | ||
52 | /* Xenified Linux/ia64 may run on pl = 1 or 2. | ||
53 | * determin at run time. */ | ||
54 | unsigned long rsc = ia64_getreg(_IA64_REG_AR_RSC); | ||
55 | unsigned int rpl = (rsc & IA64_RSC_PL_MASK) >> IA64_RSC_PL_SHIFT; | ||
56 | xen_info.kernel_rpl = rpl; | ||
57 | } | ||
58 | |||
59 | /*************************************************************************** | ||
60 | * pv_init_ops | ||
61 | * initialization hooks. | ||
62 | */ | ||
63 | |||
64 | static void | ||
65 | xen_panic_hypercall(struct unw_frame_info *info, void *arg) | ||
66 | { | ||
67 | current->thread.ksp = (__u64)info->sw - 16; | ||
68 | HYPERVISOR_shutdown(SHUTDOWN_crash); | ||
69 | /* we're never actually going to get here... */ | ||
70 | } | ||
71 | |||
72 | static int | ||
73 | xen_panic_event(struct notifier_block *this, unsigned long event, void *ptr) | ||
74 | { | ||
75 | unw_init_running(xen_panic_hypercall, NULL); | ||
76 | /* we're never actually going to get here... */ | ||
77 | return NOTIFY_DONE; | ||
78 | } | ||
79 | |||
80 | static struct notifier_block xen_panic_block = { | ||
81 | xen_panic_event, NULL, 0 /* try to go last */ | ||
82 | }; | ||
83 | |||
84 | static void xen_pm_power_off(void) | ||
85 | { | ||
86 | local_irq_disable(); | ||
87 | HYPERVISOR_shutdown(SHUTDOWN_poweroff); | ||
88 | } | ||
89 | |||
90 | static void __init | ||
91 | xen_banner(void) | ||
92 | { | ||
93 | printk(KERN_INFO | ||
94 | "Running on Xen! pl = %d start_info_pfn=0x%lx nr_pages=%ld " | ||
95 | "flags=0x%x\n", | ||
96 | xen_info.kernel_rpl, | ||
97 | HYPERVISOR_shared_info->arch.start_info_pfn, | ||
98 | xen_start_info->nr_pages, xen_start_info->flags); | ||
99 | } | ||
100 | |||
101 | static int __init | ||
102 | xen_reserve_memory(struct rsvd_region *region) | ||
103 | { | ||
104 | region->start = (unsigned long)__va( | ||
105 | (HYPERVISOR_shared_info->arch.start_info_pfn << PAGE_SHIFT)); | ||
106 | region->end = region->start + PAGE_SIZE; | ||
107 | return 1; | ||
108 | } | ||
109 | |||
110 | static void __init | ||
111 | xen_arch_setup_early(void) | ||
112 | { | ||
113 | struct shared_info *s; | ||
114 | BUG_ON(!xen_pv_domain()); | ||
115 | |||
116 | s = HYPERVISOR_shared_info; | ||
117 | xen_start_info = __va(s->arch.start_info_pfn << PAGE_SHIFT); | ||
118 | |||
119 | /* Must be done before any hypercall. */ | ||
120 | xencomm_initialize(); | ||
121 | |||
122 | xen_setup_features(); | ||
123 | /* Register a call for panic conditions. */ | ||
124 | atomic_notifier_chain_register(&panic_notifier_list, | ||
125 | &xen_panic_block); | ||
126 | pm_power_off = xen_pm_power_off; | ||
127 | |||
128 | xen_ia64_enable_opt_feature(); | ||
129 | } | ||
130 | |||
131 | static void __init | ||
132 | xen_arch_setup_console(char **cmdline_p) | ||
133 | { | ||
134 | add_preferred_console("xenboot", 0, NULL); | ||
135 | add_preferred_console("tty", 0, NULL); | ||
136 | /* use hvc_xen */ | ||
137 | add_preferred_console("hvc", 0, NULL); | ||
138 | |||
139 | #if !defined(CONFIG_VT) || !defined(CONFIG_DUMMY_CONSOLE) | ||
140 | conswitchp = NULL; | ||
141 | #endif | ||
142 | } | ||
143 | |||
144 | static int __init | ||
145 | xen_arch_setup_nomca(void) | ||
146 | { | ||
147 | return 1; | ||
148 | } | ||
149 | |||
150 | static void __init | ||
151 | xen_post_smp_prepare_boot_cpu(void) | ||
152 | { | ||
153 | xen_setup_vcpu_info_placement(); | ||
154 | } | ||
155 | |||
156 | static const struct pv_init_ops xen_init_ops __initdata = { | ||
157 | .banner = xen_banner, | ||
158 | |||
159 | .reserve_memory = xen_reserve_memory, | ||
160 | |||
161 | .arch_setup_early = xen_arch_setup_early, | ||
162 | .arch_setup_console = xen_arch_setup_console, | ||
163 | .arch_setup_nomca = xen_arch_setup_nomca, | ||
164 | |||
165 | .post_smp_prepare_boot_cpu = xen_post_smp_prepare_boot_cpu, | ||
166 | }; | ||
167 | |||
168 | /*************************************************************************** | ||
169 | * pv_cpu_ops | ||
170 | * intrinsics hooks. | ||
171 | */ | ||
172 | |||
173 | static void xen_setreg(int regnum, unsigned long val) | ||
174 | { | ||
175 | switch (regnum) { | ||
176 | case _IA64_REG_AR_KR0 ... _IA64_REG_AR_KR7: | ||
177 | xen_set_kr(regnum - _IA64_REG_AR_KR0, val); | ||
178 | break; | ||
179 | #ifdef CONFIG_IA32_SUPPORT | ||
180 | case _IA64_REG_AR_EFLAG: | ||
181 | xen_set_eflag(val); | ||
182 | break; | ||
183 | #endif | ||
184 | case _IA64_REG_CR_TPR: | ||
185 | xen_set_tpr(val); | ||
186 | break; | ||
187 | case _IA64_REG_CR_ITM: | ||
188 | xen_set_itm(val); | ||
189 | break; | ||
190 | case _IA64_REG_CR_EOI: | ||
191 | xen_eoi(val); | ||
192 | break; | ||
193 | default: | ||
194 | ia64_native_setreg_func(regnum, val); | ||
195 | break; | ||
196 | } | ||
197 | } | ||
198 | |||
199 | static unsigned long xen_getreg(int regnum) | ||
200 | { | ||
201 | unsigned long res; | ||
202 | |||
203 | switch (regnum) { | ||
204 | case _IA64_REG_PSR: | ||
205 | res = xen_get_psr(); | ||
206 | break; | ||
207 | #ifdef CONFIG_IA32_SUPPORT | ||
208 | case _IA64_REG_AR_EFLAG: | ||
209 | res = xen_get_eflag(); | ||
210 | break; | ||
211 | #endif | ||
212 | case _IA64_REG_CR_IVR: | ||
213 | res = xen_get_ivr(); | ||
214 | break; | ||
215 | case _IA64_REG_CR_TPR: | ||
216 | res = xen_get_tpr(); | ||
217 | break; | ||
218 | default: | ||
219 | res = ia64_native_getreg_func(regnum); | ||
220 | break; | ||
221 | } | ||
222 | return res; | ||
223 | } | ||
224 | |||
225 | /* turning on interrupts is a bit more complicated.. write to the | ||
226 | * memory-mapped virtual psr.i bit first (to avoid race condition), | ||
227 | * then if any interrupts were pending, we have to execute a hyperprivop | ||
228 | * to ensure the pending interrupt gets delivered; else we're done! */ | ||
229 | static void | ||
230 | xen_ssm_i(void) | ||
231 | { | ||
232 | int old = xen_get_virtual_psr_i(); | ||
233 | xen_set_virtual_psr_i(1); | ||
234 | barrier(); | ||
235 | if (!old && xen_get_virtual_pend()) | ||
236 | xen_hyper_ssm_i(); | ||
237 | } | ||
238 | |||
239 | /* turning off interrupts can be paravirtualized simply by writing | ||
240 | * to a memory-mapped virtual psr.i bit (implemented as a 16-bit bool) */ | ||
241 | static void | ||
242 | xen_rsm_i(void) | ||
243 | { | ||
244 | xen_set_virtual_psr_i(0); | ||
245 | barrier(); | ||
246 | } | ||
247 | |||
248 | static unsigned long | ||
249 | xen_get_psr_i(void) | ||
250 | { | ||
251 | return xen_get_virtual_psr_i() ? IA64_PSR_I : 0; | ||
252 | } | ||
253 | |||
254 | static void | ||
255 | xen_intrin_local_irq_restore(unsigned long mask) | ||
256 | { | ||
257 | if (mask & IA64_PSR_I) | ||
258 | xen_ssm_i(); | ||
259 | else | ||
260 | xen_rsm_i(); | ||
261 | } | ||
262 | |||
263 | static const struct pv_cpu_ops xen_cpu_ops __initdata = { | ||
264 | .fc = xen_fc, | ||
265 | .thash = xen_thash, | ||
266 | .get_cpuid = xen_get_cpuid, | ||
267 | .get_pmd = xen_get_pmd, | ||
268 | .getreg = xen_getreg, | ||
269 | .setreg = xen_setreg, | ||
270 | .ptcga = xen_ptcga, | ||
271 | .get_rr = xen_get_rr, | ||
272 | .set_rr = xen_set_rr, | ||
273 | .set_rr0_to_rr4 = xen_set_rr0_to_rr4, | ||
274 | .ssm_i = xen_ssm_i, | ||
275 | .rsm_i = xen_rsm_i, | ||
276 | .get_psr_i = xen_get_psr_i, | ||
277 | .intrin_local_irq_restore | ||
278 | = xen_intrin_local_irq_restore, | ||
279 | }; | ||
280 | |||
281 | /****************************************************************************** | ||
282 | * replacement of hand written assembly codes. | ||
283 | */ | ||
284 | |||
285 | extern char xen_switch_to; | ||
286 | extern char xen_leave_syscall; | ||
287 | extern char xen_work_processed_syscall; | ||
288 | extern char xen_leave_kernel; | ||
289 | |||
290 | const struct pv_cpu_asm_switch xen_cpu_asm_switch = { | ||
291 | .switch_to = (unsigned long)&xen_switch_to, | ||
292 | .leave_syscall = (unsigned long)&xen_leave_syscall, | ||
293 | .work_processed_syscall = (unsigned long)&xen_work_processed_syscall, | ||
294 | .leave_kernel = (unsigned long)&xen_leave_kernel, | ||
295 | }; | ||
296 | |||
297 | /*************************************************************************** | ||
298 | * pv_iosapic_ops | ||
299 | * iosapic read/write hooks. | ||
300 | */ | ||
301 | static void | ||
302 | xen_pcat_compat_init(void) | ||
303 | { | ||
304 | /* nothing */ | ||
305 | } | ||
306 | |||
307 | static struct irq_chip* | ||
308 | xen_iosapic_get_irq_chip(unsigned long trigger) | ||
309 | { | ||
310 | return NULL; | ||
311 | } | ||
312 | |||
313 | static unsigned int | ||
314 | xen_iosapic_read(char __iomem *iosapic, unsigned int reg) | ||
315 | { | ||
316 | struct physdev_apic apic_op; | ||
317 | int ret; | ||
318 | |||
319 | apic_op.apic_physbase = (unsigned long)iosapic - | ||
320 | __IA64_UNCACHED_OFFSET; | ||
321 | apic_op.reg = reg; | ||
322 | ret = HYPERVISOR_physdev_op(PHYSDEVOP_apic_read, &apic_op); | ||
323 | if (ret) | ||
324 | return ret; | ||
325 | return apic_op.value; | ||
326 | } | ||
327 | |||
328 | static void | ||
329 | xen_iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val) | ||
330 | { | ||
331 | struct physdev_apic apic_op; | ||
332 | |||
333 | apic_op.apic_physbase = (unsigned long)iosapic - | ||
334 | __IA64_UNCACHED_OFFSET; | ||
335 | apic_op.reg = reg; | ||
336 | apic_op.value = val; | ||
337 | HYPERVISOR_physdev_op(PHYSDEVOP_apic_write, &apic_op); | ||
338 | } | ||
339 | |||
340 | static const struct pv_iosapic_ops xen_iosapic_ops __initdata = { | ||
341 | .pcat_compat_init = xen_pcat_compat_init, | ||
342 | .__get_irq_chip = xen_iosapic_get_irq_chip, | ||
343 | |||
344 | .__read = xen_iosapic_read, | ||
345 | .__write = xen_iosapic_write, | ||
346 | }; | ||
347 | |||
348 | /*************************************************************************** | ||
349 | * pv_ops initialization | ||
350 | */ | ||
351 | |||
352 | void __init | ||
353 | xen_setup_pv_ops(void) | ||
354 | { | ||
355 | xen_info_init(); | ||
356 | pv_info = xen_info; | ||
357 | pv_init_ops = xen_init_ops; | ||
358 | pv_cpu_ops = xen_cpu_ops; | ||
359 | pv_iosapic_ops = xen_iosapic_ops; | ||
360 | pv_irq_ops = xen_irq_ops; | ||
361 | pv_time_ops = xen_time_ops; | ||
362 | |||
363 | paravirt_cpu_asm_init(&xen_cpu_asm_switch); | ||
364 | } | ||
diff --git a/arch/ia64/xen/xencomm.c b/arch/ia64/xen/xencomm.c new file mode 100644 index 000000000000..1f5d7ac82e97 --- /dev/null +++ b/arch/ia64/xen/xencomm.c | |||
@@ -0,0 +1,105 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2006 Hollis Blanchard <hollisb@us.ibm.com>, IBM Corporation | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify | ||
5 | * it under the terms of the GNU General Public License as published by | ||
6 | * the Free Software Foundation; either version 2 of the License, or | ||
7 | * (at your option) any later version. | ||
8 | * | ||
9 | * This program is distributed in the hope that it will be useful, | ||
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
12 | * GNU General Public License for more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU General Public License | ||
15 | * along with this program; if not, write to the Free Software | ||
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
17 | */ | ||
18 | |||
19 | #include <linux/mm.h> | ||
20 | |||
21 | static unsigned long kernel_virtual_offset; | ||
22 | static int is_xencomm_initialized; | ||
23 | |||
24 | /* for xen early printk. It uses console io hypercall which uses xencomm. | ||
25 | * However early printk may use it before xencomm initialization. | ||
26 | */ | ||
27 | int | ||
28 | xencomm_is_initialized(void) | ||
29 | { | ||
30 | return is_xencomm_initialized; | ||
31 | } | ||
32 | |||
33 | void | ||
34 | xencomm_initialize(void) | ||
35 | { | ||
36 | kernel_virtual_offset = KERNEL_START - ia64_tpa(KERNEL_START); | ||
37 | is_xencomm_initialized = 1; | ||
38 | } | ||
39 | |||
40 | /* Translate virtual address to physical address. */ | ||
41 | unsigned long | ||
42 | xencomm_vtop(unsigned long vaddr) | ||
43 | { | ||
44 | struct page *page; | ||
45 | struct vm_area_struct *vma; | ||
46 | |||
47 | if (vaddr == 0) | ||
48 | return 0UL; | ||
49 | |||
50 | if (REGION_NUMBER(vaddr) == 5) { | ||
51 | pgd_t *pgd; | ||
52 | pud_t *pud; | ||
53 | pmd_t *pmd; | ||
54 | pte_t *ptep; | ||
55 | |||
56 | /* On ia64, TASK_SIZE refers to current. It is not initialized | ||
57 | during boot. | ||
58 | Furthermore the kernel is relocatable and __pa() doesn't | ||
59 | work on addresses. */ | ||
60 | if (vaddr >= KERNEL_START | ||
61 | && vaddr < (KERNEL_START + KERNEL_TR_PAGE_SIZE)) | ||
62 | return vaddr - kernel_virtual_offset; | ||
63 | |||
64 | /* In kernel area -- virtually mapped. */ | ||
65 | pgd = pgd_offset_k(vaddr); | ||
66 | if (pgd_none(*pgd) || pgd_bad(*pgd)) | ||
67 | return ~0UL; | ||
68 | |||
69 | pud = pud_offset(pgd, vaddr); | ||
70 | if (pud_none(*pud) || pud_bad(*pud)) | ||
71 | return ~0UL; | ||
72 | |||
73 | pmd = pmd_offset(pud, vaddr); | ||
74 | if (pmd_none(*pmd) || pmd_bad(*pmd)) | ||
75 | return ~0UL; | ||
76 | |||
77 | ptep = pte_offset_kernel(pmd, vaddr); | ||
78 | if (!ptep) | ||
79 | return ~0UL; | ||
80 | |||
81 | return (pte_val(*ptep) & _PFN_MASK) | (vaddr & ~PAGE_MASK); | ||
82 | } | ||
83 | |||
84 | if (vaddr > TASK_SIZE) { | ||
85 | /* percpu variables */ | ||
86 | if (REGION_NUMBER(vaddr) == 7 && | ||
87 | REGION_OFFSET(vaddr) >= (1ULL << IA64_MAX_PHYS_BITS)) | ||
88 | ia64_tpa(vaddr); | ||
89 | |||
90 | /* kernel address */ | ||
91 | return __pa(vaddr); | ||
92 | } | ||
93 | |||
94 | /* XXX double-check (lack of) locking */ | ||
95 | vma = find_extend_vma(current->mm, vaddr); | ||
96 | if (!vma) | ||
97 | return ~0UL; | ||
98 | |||
99 | /* We assume the page is modified. */ | ||
100 | page = follow_page(vma, vaddr, FOLL_WRITE | FOLL_TOUCH); | ||
101 | if (!page) | ||
102 | return ~0UL; | ||
103 | |||
104 | return (page_to_pfn(page) << PAGE_SHIFT) | (vaddr & ~PAGE_MASK); | ||
105 | } | ||
diff --git a/arch/ia64/xen/xenivt.S b/arch/ia64/xen/xenivt.S new file mode 100644 index 000000000000..3e71d50584d9 --- /dev/null +++ b/arch/ia64/xen/xenivt.S | |||
@@ -0,0 +1,52 @@ | |||
1 | /* | ||
2 | * arch/ia64/xen/ivt.S | ||
3 | * | ||
4 | * Copyright (C) 2005 Hewlett-Packard Co | ||
5 | * Dan Magenheimer <dan.magenheimer@hp.com> | ||
6 | * | ||
7 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
8 | * VA Linux Systems Japan K.K. | ||
9 | * pv_ops. | ||
10 | */ | ||
11 | |||
12 | #include <asm/asmmacro.h> | ||
13 | #include <asm/kregs.h> | ||
14 | #include <asm/pgtable.h> | ||
15 | |||
16 | #include "../kernel/minstate.h" | ||
17 | |||
18 | .section .text,"ax" | ||
19 | GLOBAL_ENTRY(xen_event_callback) | ||
20 | mov r31=pr // prepare to save predicates | ||
21 | ;; | ||
22 | SAVE_MIN_WITH_COVER // uses r31; defines r2 and r3 | ||
23 | ;; | ||
24 | movl r3=XSI_PSR_IC | ||
25 | mov r14=1 | ||
26 | ;; | ||
27 | st4 [r3]=r14 | ||
28 | ;; | ||
29 | adds r3=8,r2 // set up second base pointer for SAVE_REST | ||
30 | srlz.i // ensure everybody knows psr.ic is back on | ||
31 | ;; | ||
32 | SAVE_REST | ||
33 | ;; | ||
34 | 1: | ||
35 | alloc r14=ar.pfs,0,0,1,0 // must be first in an insn group | ||
36 | add out0=16,sp // pass pointer to pt_regs as first arg | ||
37 | ;; | ||
38 | br.call.sptk.many b0=xen_evtchn_do_upcall | ||
39 | ;; | ||
40 | movl r20=XSI_PSR_I_ADDR | ||
41 | ;; | ||
42 | ld8 r20=[r20] | ||
43 | ;; | ||
44 | adds r20=-1,r20 // vcpu_info->evtchn_upcall_pending | ||
45 | ;; | ||
46 | ld1 r20=[r20] | ||
47 | ;; | ||
48 | cmp.ne p6,p0=r20,r0 // if there are pending events, | ||
49 | (p6) br.spnt.few 1b // call evtchn_do_upcall again. | ||
50 | br.sptk.many xen_leave_kernel // we know ia64_leave_kernel is | ||
51 | // paravirtualized as xen_leave_kernel | ||
52 | END(xen_event_callback) | ||
diff --git a/arch/ia64/xen/xensetup.S b/arch/ia64/xen/xensetup.S new file mode 100644 index 000000000000..28fed1fcc079 --- /dev/null +++ b/arch/ia64/xen/xensetup.S | |||
@@ -0,0 +1,83 @@ | |||
1 | /* | ||
2 | * Support routines for Xen | ||
3 | * | ||
4 | * Copyright (C) 2005 Dan Magenheimer <dan.magenheimer@hp.com> | ||
5 | */ | ||
6 | |||
7 | #include <asm/processor.h> | ||
8 | #include <asm/asmmacro.h> | ||
9 | #include <asm/pgtable.h> | ||
10 | #include <asm/system.h> | ||
11 | #include <asm/paravirt.h> | ||
12 | #include <asm/xen/privop.h> | ||
13 | #include <linux/elfnote.h> | ||
14 | #include <linux/init.h> | ||
15 | #include <xen/interface/elfnote.h> | ||
16 | |||
17 | .section .data.read_mostly | ||
18 | .align 8 | ||
19 | .global xen_domain_type | ||
20 | xen_domain_type: | ||
21 | data4 XEN_NATIVE_ASM | ||
22 | .previous | ||
23 | |||
24 | __INIT | ||
25 | ENTRY(startup_xen) | ||
26 | // Calculate load offset. | ||
27 | // The constant, LOAD_OFFSET, can't be used because the boot | ||
28 | // loader doesn't always load to the LMA specified by the vmlinux.lds. | ||
29 | mov r9=ip // must be the first instruction to make sure | ||
30 | // that r9 = the physical address of startup_xen. | ||
31 | // Usually r9 = startup_xen - LOAD_OFFSET | ||
32 | movl r8=startup_xen | ||
33 | ;; | ||
34 | sub r9=r9,r8 // Usually r9 = -LOAD_OFFSET. | ||
35 | |||
36 | mov r10=PARAVIRT_HYPERVISOR_TYPE_XEN | ||
37 | movl r11=_start | ||
38 | ;; | ||
39 | add r11=r11,r9 | ||
40 | movl r8=hypervisor_type | ||
41 | ;; | ||
42 | add r8=r8,r9 | ||
43 | mov b0=r11 | ||
44 | ;; | ||
45 | st8 [r8]=r10 | ||
46 | br.cond.sptk.many b0 | ||
47 | ;; | ||
48 | END(startup_xen) | ||
49 | |||
50 | ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS, .asciz "linux") | ||
51 | ELFNOTE(Xen, XEN_ELFNOTE_GUEST_VERSION, .asciz "2.6") | ||
52 | ELFNOTE(Xen, XEN_ELFNOTE_XEN_VERSION, .asciz "xen-3.0") | ||
53 | ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, data8.ua startup_xen - LOAD_OFFSET) | ||
54 | |||
55 | #define isBP p3 // are we the Bootstrap Processor? | ||
56 | |||
57 | .text | ||
58 | |||
59 | GLOBAL_ENTRY(xen_setup_hook) | ||
60 | mov r8=XEN_PV_DOMAIN_ASM | ||
61 | (isBP) movl r9=xen_domain_type;; | ||
62 | (isBP) st4 [r9]=r8 | ||
63 | movl r10=xen_ivt;; | ||
64 | |||
65 | mov cr.iva=r10 | ||
66 | |||
67 | /* Set xsi base. */ | ||
68 | #define FW_HYPERCALL_SET_SHARED_INFO_VA 0x600 | ||
69 | (isBP) mov r2=FW_HYPERCALL_SET_SHARED_INFO_VA | ||
70 | (isBP) movl r28=XSI_BASE;; | ||
71 | (isBP) break 0x1000;; | ||
72 | |||
73 | /* setup pv_ops */ | ||
74 | (isBP) mov r4=rp | ||
75 | ;; | ||
76 | (isBP) br.call.sptk.many rp=xen_setup_pv_ops | ||
77 | ;; | ||
78 | (isBP) mov rp=r4 | ||
79 | ;; | ||
80 | |||
81 | br.ret.sptk.many rp | ||
82 | ;; | ||
83 | END(xen_setup_hook) | ||