summaryrefslogtreecommitdiffstats
path: root/arch/ia64/kernel/paravirtentry.S
diff options
context:
space:
mode:
authorIsaku Yamahata <yamahata@valinux.co.jp>2009-03-04 21:06:51 +0900
committerTony Luck <tony.luck@intel.com>2009-03-26 11:02:31 -0700
commitbf7ab02f620c1020c869fc71a2c855918b6a5375 (patch)
tree9b6ac860fc762869069d9605f5c52c0199e642e5 /arch/ia64/kernel/paravirtentry.S
parentf8de2ec678fa09276cf7ad02838eb80e86c73097 (diff)
ia64/pv_op/binarypatch: add helper functions to support binary patching for paravirt_ops.
add helper functions to support binary patching for paravirt_ops. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel/paravirtentry.S')
-rw-r--r--arch/ia64/kernel/paravirtentry.S56
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/ia64/kernel/paravirtentry.S b/arch/ia64/kernel/paravirtentry.S
index 2f42fcb9776..80c0d365cbc 100644
--- a/arch/ia64/kernel/paravirtentry.S
+++ b/arch/ia64/kernel/paravirtentry.S
@@ -58,3 +58,59 @@ BRANCH_PROC(switch_to, r22, b7)
BRANCH_PROC_UNWINFO(leave_syscall, r22, b7)
BRANCH_PROC(work_processed_syscall, r2, b7)
BRANCH_PROC_UNWINFO(leave_kernel, r22, b7)
+
+
+#ifdef CONFIG_MODULES
+#define __INIT_OR_MODULE .text
+#define __INITDATA_OR_MODULE .data
+#else
+#define __INIT_OR_MODULE __INIT
+#define __INITDATA_OR_MODULE __INITDATA
+#endif /* CONFIG_MODULES */
+
+ __INIT_OR_MODULE
+ GLOBAL_ENTRY(paravirt_fc_i)
+ fc.i r32
+ br.ret.sptk.many rp
+ END(paravirt_fc_i)
+ __FINIT
+
+ __INIT_OR_MODULE
+ .align 32
+ GLOBAL_ENTRY(paravirt_nop_b_inst_bundle)
+ {
+ nop.b 0
+ nop.b 0
+ nop.b 0
+ }
+ END(paravirt_nop_b_inst_bundle)
+ __FINIT
+
+ /* NOTE: nop.[mfi] has same format */
+ __INIT_OR_MODULE
+ GLOBAL_ENTRY(paravirt_nop_mfi_inst_bundle)
+ {
+ nop.m 0
+ nop.f 0
+ nop.i 0
+ }
+ END(paravirt_nop_mfi_inst_bundle)
+ __FINIT
+
+ __INIT_OR_MODULE
+ GLOBAL_ENTRY(paravirt_nop_bundle)
+paravirt_nop_bundle_start:
+ {
+ nop 0
+ nop 0
+ nop 0
+ }
+paravirt_nop_bundle_end:
+ END(paravirt_nop_bundle)
+ __FINIT
+
+ __INITDATA_OR_MODULE
+ .align 8
+ .global paravirt_nop_bundle_size
+paravirt_nop_bundle_size:
+ data8 paravirt_nop_bundle_end - paravirt_nop_bundle_start