x86: move patching code to arch-specific file.

The core patching code for paravirt is sufficiently different
among i386 and x86_64, and we move them to specific files.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index 5935c273af1f..b35ed95166e4 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -308,6 +308,11 @@ extern struct pv_mmu_ops pv_mmu_ops;
 #define paravirt_alt(insn_string)                                       \
         _paravirt_alt(insn_string, "%c[paravirt_typenum]", "%c[paravirt_clobber]")
 
+/* Simple instruction patching code. */
+#define DEF_NATIVE(ops, name, code)                                     \
+        extern const char start_##ops##_##name[], end_##ops##_##name[]; \
+        asm("start_" #ops "_" #name ": " code "; end_" #ops "_" #name ":")
+
 unsigned paravirt_patch_nop(void);
 unsigned paravirt_patch_ignore(unsigned len);
 unsigned paravirt_patch_call(void *insnbuf,
@@ -322,6 +327,9 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
 unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
                               const char *start, const char *end);
 
+unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
+                      unsigned long addr, unsigned len);
+
 int paravirt_disable_iospace(void);
 
 /*