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ia64/pv_op/binarypatch: add helper functions to support binary patching for paravirt_ops.

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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>
This commit is contained in:
Isaku Yamahata
2009-03-04 21:06:51 +09:00
committed by Tony Luck
parent f8de2ec678
commit bf7ab02f62
4 changed files with 737 additions and 0 deletions
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arch/ia64/kernel/paravirtentry.S
+56
View File
@@ -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