diff options
Diffstat (limited to 'arch/arch-x86_64.h')
| -rw-r--r-- | arch/arch-x86_64.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arch-x86_64.h b/arch/arch-x86_64.h index cea0451d..8bdf01e8 100644 --- a/arch/arch-x86_64.h +++ b/arch/arch-x86_64.h @@ -1,6 +1,15 @@ #ifndef ARCH_X86_64_h #define ARCH_X86_64_h +static inline void do_cpuid(unsigned int *eax, unsigned int *ebx, + unsigned int *ecx, unsigned int *edx) +{ + asm volatile("cpuid" + : "=a" (*eax), "=b" (*ebx), "=r" (*ecx), "=d" (*edx) + : "0" (*eax), "2" (*ecx) + : "memory"); +} + #include "arch-x86-common.h" #define FIO_ARCH (arch_x86_64) |