From 21438f7c138f0b893a32df3cc77434e39a2145f8 Mon Sep 17 00:00:00 2001 From: Glauber de Oliveira Costa Date: Wed, 30 Jan 2008 13:32:09 +0100 Subject: [PATCH] x86: add CLBR_ defines for 64-bit x86_64 needs a potentially larger clobber list than i386, due to its calling convention. So we add more CLBR_ defines for it. Note that CLBR_ANY is different for each of the architectures, since it comprises the notion of "All call clobbers in this architecture" Signed-off-by: Glauber de Oliveira Costa Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- include/asm-x86/paravirt.h | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index e8fbf742d4..5935c273af 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -8,11 +8,24 @@ #include /* Bitmask of what can be clobbered: usually at least eax. */ -#define CLBR_NONE 0x0 -#define CLBR_EAX 0x1 -#define CLBR_ECX 0x2 -#define CLBR_EDX 0x4 -#define CLBR_ANY 0x7 +#define CLBR_NONE 0 +#define CLBR_EAX (1 << 0) +#define CLBR_ECX (1 << 1) +#define CLBR_EDX (1 << 2) + +#ifdef CONFIG_X86_64 +#define CLBR_RSI (1 << 3) +#define CLBR_RDI (1 << 4) +#define CLBR_R8 (1 << 5) +#define CLBR_R9 (1 << 6) +#define CLBR_R10 (1 << 7) +#define CLBR_R11 (1 << 8) +#define CLBR_ANY ((1 << 9) - 1) +#include +#else +/* CLBR_ANY should match all regs platform has. For i386, that's just it */ +#define CLBR_ANY ((1 << 3) - 1) +#endif /* X86_64 */ #ifndef __ASSEMBLY__ #include -- 2.39.5