The following commit has been merged into the x86/cpu branch of tip: Commit-ID: 86109813990b5d6d6cfb8072382ee69d11ea9460 Gitweb: https://git.kernel.org/tip/86109813990b5d6d6cfb8072382ee69d11ea9460 Author: Uros Bizjak <ubiz...@gmail.com> AuthorDate: Tue, 07 Jul 2020 19:47:22 +02:00 Committer: Borislav Petkov <b...@suse.de> CommitterDate: Tue, 18 Aug 2020 15:49:07 +02:00
x86/cpu: Use XGETBV and XSETBV mnemonics in fpu/internal.h Current minimum required version of binutils is 2.23, which supports XGETBV and XSETBV instruction mnemonics. Replace the byte-wise specification of XGETBV and XSETBV with these proper mnemonics. Signed-off-by: Uros Bizjak <ubiz...@gmail.com> Signed-off-by: Borislav Petkov <b...@suse.de> Link: https://lkml.kernel.org/r/20200707174722.58651-1-ubiz...@gmail.com --- arch/x86/include/asm/fpu/internal.h | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h index 0a460f2..21a8b52 100644 --- a/arch/x86/include/asm/fpu/internal.h +++ b/arch/x86/include/asm/fpu/internal.h @@ -602,9 +602,7 @@ static inline u64 xgetbv(u32 index) { u32 eax, edx; - asm volatile(".byte 0x0f,0x01,0xd0" /* xgetbv */ - : "=a" (eax), "=d" (edx) - : "c" (index)); + asm volatile("xgetbv" : "=a" (eax), "=d" (edx) : "c" (index)); return eax + ((u64)edx << 32); } @@ -613,8 +611,7 @@ static inline void xsetbv(u32 index, u64 value) u32 eax = value; u32 edx = value >> 32; - asm volatile(".byte 0x0f,0x01,0xd1" /* xsetbv */ - : : "a" (eax), "d" (edx), "c" (index)); + asm volatile("xsetbv" :: "a" (eax), "d" (edx), "c" (index)); } #endif /* _ASM_X86_FPU_INTERNAL_H */
