diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2019-10-03 14:50:42 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-11-27 07:44:24 +0100 |
| commit | 63f62addb88ec4b358cf4574789bc3180c689e9a (patch) | |
| tree | 251af1ec2b3fc9ebfaee7fe2a89cb9201dd18750 /arch/x86/include/asm/text-patching.h | |
| parent | 18cbc8bed0c70795d2064217c89894e28eafdf04 (diff) | |
x86/alternatives: Add and use text_gen_insn() helper
Provide a simple helper function to create common instruction
encodings.
Tested-by: Alexei Starovoitov <ast@kernel.org>
Tested-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20191111132457.703538332@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/text-patching.h')
| -rw-r--r-- | arch/x86/include/asm/text-patching.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/text-patching.h b/arch/x86/include/asm/text-patching.h index 3bcd26623a1f..95beb85aef65 100644 --- a/arch/x86/include/asm/text-patching.h +++ b/arch/x86/include/asm/text-patching.h @@ -49,6 +49,8 @@ extern void text_poke_bp(void *addr, const void *opcode, size_t len, const void extern void text_poke_queue(void *addr, const void *opcode, size_t len, const void *emulate); extern void text_poke_finish(void); +extern void *text_gen_insn(u8 opcode, const void *addr, const void *dest); + extern int after_bootmem; extern __ro_after_init struct mm_struct *poking_mm; extern __ro_after_init unsigned long poking_addr; |