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-rw-r--r--arch/ia64/kernel/paravirtentry.S99
1 files changed, 80 insertions, 19 deletions
diff --git a/arch/ia64/kernel/paravirtentry.S b/arch/ia64/kernel/paravirtentry.S
index 2f42fcb9776..6158560d7f1 100644
--- a/arch/ia64/kernel/paravirtentry.S
+++ b/arch/ia64/kernel/paravirtentry.S
@@ -20,8 +20,11 @@
20 * 20 *
21 */ 21 */
22 22
23#include <linux/init.h>
23#include <asm/asmmacro.h> 24#include <asm/asmmacro.h>
24#include <asm/asm-offsets.h> 25#include <asm/asm-offsets.h>
26#include <asm/paravirt_privop.h>
27#include <asm/paravirt_patch.h>
25#include "entry.h" 28#include "entry.h"
26 29
27#define DATA8(sym, init_value) \ 30#define DATA8(sym, init_value) \
@@ -32,29 +35,87 @@
32 data8 init_value ; \ 35 data8 init_value ; \
33 .popsection 36 .popsection
34 37
35#define BRANCH(targ, reg, breg) \ 38#define BRANCH(targ, reg, breg, type) \
36 movl reg=targ ; \ 39 PARAVIRT_PATCH_SITE_BR(PARAVIRT_PATCH_TYPE_BR_ ## type) ; \
37 ;; \ 40 ;; \
38 ld8 reg=[reg] ; \ 41 movl reg=targ ; \
39 ;; \ 42 ;; \
40 mov breg=reg ; \ 43 ld8 reg=[reg] ; \
44 ;; \
45 mov breg=reg ; \
41 br.cond.sptk.many breg 46 br.cond.sptk.many breg
42 47
43#define BRANCH_PROC(sym, reg, breg) \ 48#define BRANCH_PROC(sym, reg, breg, type) \
44 DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \ 49 DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \
45 GLOBAL_ENTRY(paravirt_ ## sym) ; \ 50 GLOBAL_ENTRY(paravirt_ ## sym) ; \
46 BRANCH(paravirt_ ## sym ## _targ, reg, breg) ; \ 51 BRANCH(paravirt_ ## sym ## _targ, reg, breg, type) ; \
47 END(paravirt_ ## sym) 52 END(paravirt_ ## sym)
48 53
49#define BRANCH_PROC_UNWINFO(sym, reg, breg) \ 54#define BRANCH_PROC_UNWINFO(sym, reg, breg, type) \
50 DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \ 55 DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \
51 GLOBAL_ENTRY(paravirt_ ## sym) ; \ 56 GLOBAL_ENTRY(paravirt_ ## sym) ; \
52 PT_REGS_UNWIND_INFO(0) ; \ 57 PT_REGS_UNWIND_INFO(0) ; \
53 BRANCH(paravirt_ ## sym ## _targ, reg, breg) ; \ 58 BRANCH(paravirt_ ## sym ## _targ, reg, breg, type) ; \
54 END(paravirt_ ## sym) 59 END(paravirt_ ## sym)
55 60
56 61
57BRANCH_PROC(switch_to, r22, b7) 62BRANCH_PROC(switch_to, r22, b7, SWITCH_TO)
58BRANCH_PROC_UNWINFO(leave_syscall, r22, b7) 63BRANCH_PROC_UNWINFO(leave_syscall, r22, b7, LEAVE_SYSCALL)
59BRANCH_PROC(work_processed_syscall, r2, b7) 64BRANCH_PROC(work_processed_syscall, r2, b7, WORK_PROCESSED_SYSCALL)
60BRANCH_PROC_UNWINFO(leave_kernel, r22, b7) 65BRANCH_PROC_UNWINFO(leave_kernel, r22, b7, LEAVE_KERNEL)
66
67
68#ifdef CONFIG_MODULES
69#define __INIT_OR_MODULE .text
70#define __INITDATA_OR_MODULE .data
71#else
72#define __INIT_OR_MODULE __INIT
73#define __INITDATA_OR_MODULE __INITDATA
74#endif /* CONFIG_MODULES */
75
76 __INIT_OR_MODULE
77 GLOBAL_ENTRY(paravirt_fc_i)
78 fc.i r32
79 br.ret.sptk.many rp
80 END(paravirt_fc_i)
81 __FINIT
82
83 __INIT_OR_MODULE
84 .align 32
85 GLOBAL_ENTRY(paravirt_nop_b_inst_bundle)
86 {
87 nop.b 0
88 nop.b 0
89 nop.b 0
90 }
91 END(paravirt_nop_b_inst_bundle)
92 __FINIT
93
94 /* NOTE: nop.[mfi] has same format */
95 __INIT_OR_MODULE
96 GLOBAL_ENTRY(paravirt_nop_mfi_inst_bundle)
97 {
98 nop.m 0
99 nop.f 0
100 nop.i 0
101 }
102 END(paravirt_nop_mfi_inst_bundle)
103 __FINIT
104
105 __INIT_OR_MODULE
106 GLOBAL_ENTRY(paravirt_nop_bundle)
107paravirt_nop_bundle_start:
108 {
109 nop 0
110 nop 0
111 nop 0
112 }
113paravirt_nop_bundle_end:
114 END(paravirt_nop_bundle)
115 __FINIT
116
117 __INITDATA_OR_MODULE
118 .align 8
119 .global paravirt_nop_bundle_size
120paravirt_nop_bundle_size:
121 data8 paravirt_nop_bundle_end - paravirt_nop_bundle_start