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| author | bibo, mao <bibo.mao@intel.com> | 2006-07-30 03:03:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-31 13:28:38 -0700 |
| commit | a9ad965ea9a6d719daf333847a2ceb0e363994bd (patch) | |
| tree | 9ecb71f533c16eb790909f13fefd67fd939ffb2b /include | |
| parent | 25c8716cb08dea386c7d6220b82eba732ccbf976 (diff) | |
| download | op-kernel-dev-a9ad965ea9a6d719daf333847a2ceb0e363994bd.zip op-kernel-dev-a9ad965ea9a6d719daf333847a2ceb0e363994bd.tar.gz | |
[PATCH] IA64: kprobe invalidate icache of jump buffer
Kprobe inserts breakpoint instruction in probepoint and then jumps to
instruction slot when breakpoint is hit, the instruction slot icache must
be consistent with dcache. Here is the patch which invalidates instruction
slot icache area.
Without this patch, in some machines there will be fault when executing
instruction slot where icache content is inconsistent with dcache.
Signed-off-by: bibo,mao <bibo.mao@intel.com>
Acked-by: "Luck, Tony" <tony.luck@intel.com>
Acked-by: Keshavamurthy Anil S <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-i386/kprobes.h | 1 | ||||
| -rw-r--r-- | include/asm-ia64/kprobes.h | 1 | ||||
| -rw-r--r-- | include/asm-powerpc/kprobes.h | 1 | ||||
| -rw-r--r-- | include/asm-sparc64/kprobes.h | 1 | ||||
| -rw-r--r-- | include/asm-x86_64/kprobes.h | 1 |
5 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-i386/kprobes.h b/include/asm-i386/kprobes.h index 0730a20..8774d06 100644 --- a/include/asm-i386/kprobes.h +++ b/include/asm-i386/kprobes.h @@ -45,6 +45,7 @@ typedef u8 kprobe_opcode_t; #define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry #define ARCH_SUPPORTS_KRETPROBES #define ARCH_INACTIVE_KPROBE_COUNT 0 +#define flush_insn_slot(p) do { } while (0) void arch_remove_kprobe(struct kprobe *p); void kretprobe_trampoline(void); diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h index 2418a78..9389049 100644 --- a/include/asm-ia64/kprobes.h +++ b/include/asm-ia64/kprobes.h @@ -125,5 +125,6 @@ static inline void jprobe_return(void) } extern void invalidate_stacked_regs(void); extern void flush_register_stack(void); +extern void flush_insn_slot(struct kprobe *p); #endif /* _ASM_KPROBES_H */ diff --git a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h index 2d0af52..34e1f89 100644 --- a/include/asm-powerpc/kprobes.h +++ b/include/asm-powerpc/kprobes.h @@ -51,6 +51,7 @@ typedef unsigned int kprobe_opcode_t; #define ARCH_SUPPORTS_KRETPROBES #define ARCH_INACTIVE_KPROBE_COUNT 1 +#define flush_insn_slot(p) do { } while (0) void kretprobe_trampoline(void); extern void arch_remove_kprobe(struct kprobe *p); diff --git a/include/asm-sparc64/kprobes.h b/include/asm-sparc64/kprobes.h index 15065af..c9f5c34 100644 --- a/include/asm-sparc64/kprobes.h +++ b/include/asm-sparc64/kprobes.h @@ -13,6 +13,7 @@ typedef u32 kprobe_opcode_t; #define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry #define arch_remove_kprobe(p) do {} while (0) #define ARCH_INACTIVE_KPROBE_COUNT 0 +#define flush_insn_slot(p) do { } while (0) /* Architecture specific copy of original instruction*/ struct arch_specific_insn { diff --git a/include/asm-x86_64/kprobes.h b/include/asm-x86_64/kprobes.h index d36febd..cf53178 100644 --- a/include/asm-x86_64/kprobes.h +++ b/include/asm-x86_64/kprobes.h @@ -47,6 +47,7 @@ typedef u8 kprobe_opcode_t; void kretprobe_trampoline(void); extern void arch_remove_kprobe(struct kprobe *p); +#define flush_insn_slot(p) do { } while (0) /* Architecture specific copy of original instruction*/ struct arch_specific_insn { |
