Commit-ID: c9e5a5a7034146493386d985ff432aed8059929a Gitweb: http://git.kernel.org/tip/c9e5a5a7034146493386d985ff432aed8059929a Author: H. Peter Anvin <h...@linux.intel.com> AuthorDate: Fri, 30 May 2014 08:19:21 -0700 Committer: H. Peter Anvin <h...@linux.intel.com> CommitDate: Fri, 30 May 2014 08:19:21 -0700
x86/xsave: Make it clear that the XSAVE macros use (%edi)/(%rdi) The XSAVE instruction family takes a memory argment. The macros use (%edi)/(%rdi) as that memory argument - make that clear to the reader. Signed-off-by: H. Peter Anvin <h...@linux.intel.com> Cc: Fenghua Yu <fenghua...@intel.com> Link: http://lkml.kernel.org/r/1401387164-43416-7-git-send-email-fenghua...@intel.com --- arch/x86/include/asm/xsave.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h index 1ba577c..bbebd6e 100644 --- a/arch/x86/include/asm/xsave.h +++ b/arch/x86/include/asm/xsave.h @@ -52,6 +52,7 @@ 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); +/* These macros all use (%edi)/(%rdi) as the single memory argument. */ #define XSAVE ".byte " REX_PREFIX "0x0f,0xae,0x27" #define XSAVEOPT ".byte " REX_PREFIX "0x0f,0xae,0x37" #define XSAVES ".byte " REX_PREFIX "0x0f,0xc7,0x2f" -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
