diff options
| author | Fenghua Yu <fenghua.yu@intel.com> | 2014-05-29 11:12:34 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-05-29 14:31:16 -0700 |
| commit | 200b08a970b2ae764b670a326088ab8bc0a989cc (patch) | |
| tree | 52644b90b58dba06eaffeff2651326c84eee1ec6 | |
| parent | 0b29643a58439dc9a8b0c0cacad0e7cb608c8199 (diff) | |
x86/xsaves: Define macros for xsave instructions
Define macros for xsave, xsaveopt, xsaves, xrstor, and xrstors inline
instructions. The instructions will be used for saving and restoring xstate.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1401387164-43416-7-git-send-email-fenghua.yu@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| -rw-r--r-- | arch/x86/include/asm/xsave.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h index d949ef28c48..71bdde45b51 100644 --- a/arch/x86/include/asm/xsave.h +++ b/arch/x86/include/asm/xsave.h @@ -52,6 +52,12 @@ extern void xsave_init(void); extern void update_regset_xstate_info(unsigned int size, u64 xstate_mask); extern int init_fpu(struct task_struct *child); +#define XSAVE ".byte " REX_PREFIX "0x0f,0xae,0x27" +#define XSAVEOPT ".byte " REX_PREFIX "0x0f,0xae,0x37" +#define XSAVES ".byte " REX_PREFIX "0x0f,0xc7,0x2f" +#define XRSTOR ".byte " REX_PREFIX "0x0f,0xae,0x2f" +#define XRSTORS ".byte " REX_PREFIX "0x0f,0xc7,0x1f" + static inline int fpu_xrstor_checking(struct xsave_struct *fx) { int err; |