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-rw-r--r--arch/ia64/include/asm/xen/events.h50
-rw-r--r--arch/ia64/include/asm/xen/grant_table.h29
-rw-r--r--arch/ia64/include/asm/xen/hypercall.h265
-rw-r--r--arch/ia64/include/asm/xen/hypervisor.h89
-rw-r--r--arch/ia64/include/asm/xen/inst.h458
-rw-r--r--arch/ia64/include/asm/xen/interface.h346
-rw-r--r--arch/ia64/include/asm/xen/irq.h44
-rw-r--r--arch/ia64/include/asm/xen/minstate.h134
-rw-r--r--arch/ia64/include/asm/xen/page.h65
-rw-r--r--arch/ia64/include/asm/xen/privop.h129
-rw-r--r--arch/ia64/include/asm/xen/xcom_hcall.h51
-rw-r--r--arch/ia64/include/asm/xen/xencomm.h42
12 files changed, 1702 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/xen/events.h b/arch/ia64/include/asm/xen/events.h
new file mode 100644
index 00000000000..73248781fba
--- /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
25enum 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
34static inline int xen_irqs_disabled(struct pt_regs *regs)
35{
36 return !(ia64_psr(regs)->i);
37}
38
39static 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 00000000000..2b1fae0e2d1
--- /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
26struct vm_struct *xen_alloc_vm_area(unsigned long size);
27void 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 00000000000..96fc62366aa
--- /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>
40struct xencomm_handle;
41extern 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
107static inline int
108xencomm_arch_hypercall_sched_op(int cmd, struct xencomm_handle *arg)
109{
110 return _hypercall2(int, sched_op_new, cmd, arg);
111}
112
113static inline long
114HYPERVISOR_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
121static inline int
122xencomm_arch_hypercall_multicall(struct xencomm_handle *call_list,
123 int nr_calls)
124{
125 return _hypercall2(int, multicall, call_list, nr_calls);
126}
127
128static inline int
129xencomm_arch_hypercall_memory_op(unsigned int cmd, struct xencomm_handle *arg)
130{
131 return _hypercall2(int, memory_op, cmd, arg);
132}
133
134static inline int
135xencomm_arch_hypercall_event_channel_op(int cmd, struct xencomm_handle *arg)
136{
137 return _hypercall2(int, event_channel_op, cmd, arg);
138}
139
140static inline int
141xencomm_arch_hypercall_xen_version(int cmd, struct xencomm_handle *arg)
142{
143 return _hypercall2(int, xen_version, cmd, arg);
144}
145
146static inline int
147xencomm_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
153static inline int
154xencomm_arch_hypercall_physdev_op(int cmd, struct xencomm_handle *arg)
155{
156 return _hypercall2(int, physdev_op, cmd, arg);
157}
158
159static inline int
160xencomm_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
167int HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count);
168
169extern int xencomm_arch_hypercall_suspend(struct xencomm_handle *arg);
170
171static inline int
172xencomm_arch_hypercall_callback_op(int cmd, struct xencomm_handle *arg)
173{
174 return _hypercall2(int, callback_op, cmd, arg);
175}
176
177static inline long
178xencomm_arch_hypercall_vcpu_op(int cmd, int cpu, void *arg)
179{
180 return _hypercall3(long, vcpu_op, cmd, cpu, arg);
181}
182
183static inline int
184HYPERVISOR_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
195static inline long
196xencomm_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
219static inline int
220HYPERVISOR_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
235static inline void
236MULTI_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
244static inline void
245MULTI_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
254static inline void
255MULTI_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 00000000000..7a804e80fc6
--- /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 */
45enum xen_domain_type {
46 XEN_NATIVE,
47 XEN_PV_DOMAIN,
48 XEN_HVM_DOMAIN,
49};
50
51extern 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
62extern struct shared_info *HYPERVISOR_shared_info;
63extern struct start_info *xen_start_info;
64
65void __init xen_setup_vcpu_info_placement(void);
66void 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 */
76void 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 00000000000..19c2ae1d878
--- /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 00000000000..f00fab40854
--- /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);
75DEFINE_GUEST_HANDLE(char);
76DEFINE_GUEST_HANDLE(int);
77DEFINE_GUEST_HANDLE(long);
78DEFINE_GUEST_HANDLE(void);
79
80typedef unsigned long xen_pfn_t;
81DEFINE_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
99union 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
113union 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
126struct 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
216struct 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 */
227struct 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
235struct 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
250struct xen_callback {
251 unsigned long ip;
252};
253typedef 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
331struct 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 00000000000..a9045098300
--- /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 00000000000..4d92d9bbda7
--- /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 00000000000..03441a780b5
--- /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
28static inline unsigned long mfn_to_pfn(unsigned long mfn)
29{
30 return mfn;
31}
32
33static 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
40static inline void *mfn_to_virt(unsigned long mfn)
41{
42 return __va(mfn << PAGE_SHIFT);
43}
44
45static inline unsigned long virt_to_mfn(void *virt)
46{
47 return __pa(virt) >> PAGE_SHIFT;
48}
49
50/* for tpmfront.c */
51static inline unsigned long virt_to_machine(void *virt)
52{
53 return __pa(virt);
54}
55
56static 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 00000000000..71ec7546e10
--- /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. */
70extern void xen_fc(unsigned long addr);
71extern 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. */
80extern unsigned long xen_get_cpuid(int index);
81extern unsigned long xen_get_pmd(int index);
82
83extern unsigned long xen_get_eflag(void); /* see xen_ia64_getreg */
84extern 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. */
112extern unsigned long xen_get_psr(void);
113extern unsigned long xen_get_ivr(void);
114extern unsigned long xen_get_tpr(void);
115extern void xen_hyper_ssm_i(void);
116extern void xen_set_itm(unsigned long);
117extern void xen_set_tpr(unsigned long);
118extern void xen_eoi(unsigned long);
119extern unsigned long xen_get_rr(unsigned long index);
120extern void xen_set_rr(unsigned long index, unsigned long val);
121extern void xen_set_rr0_to_rr4(unsigned long val0, unsigned long val1,
122 unsigned long val2, unsigned long val3,
123 unsigned long val4);
124extern void xen_set_kr(unsigned long index, unsigned long val);
125extern 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 00000000000..20b2950c71b
--- /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. */
26extern int xencomm_hypercall_console_io(int cmd, int count, char *str);
27
28extern int xencomm_hypercall_event_channel_op(int cmd, void *op);
29
30extern int xencomm_hypercall_xen_version(int cmd, void *arg);
31
32extern int xencomm_hypercall_physdev_op(int cmd, void *op);
33
34extern int xencomm_hypercall_grant_table_op(unsigned int cmd, void *op,
35 unsigned int count);
36
37extern int xencomm_hypercall_sched_op(int cmd, void *arg);
38
39extern int xencomm_hypercall_multicall(void *call_list, int nr_calls);
40
41extern int xencomm_hypercall_callback_op(int cmd, void *arg);
42
43extern int xencomm_hypercall_memory_op(unsigned int cmd, void *arg);
44
45extern int xencomm_hypercall_suspend(unsigned long srec);
46
47extern long xencomm_hypercall_vcpu_op(int cmd, int cpu, void *arg);
48
49extern 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 00000000000..cded677bebf
--- /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. */
26extern void xencomm_initialize(void);
27extern 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 */
34static 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 */
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-19 19:51:56 -0400