diff options
| -rw-r--r-- | host/include/i386/host/cpuinfo.h | 1 | ||||
| -rw-r--r-- | util/cpuinfo-i386.c | 4 |
2 files changed, 4 insertions, 1 deletions
diff --git a/host/include/i386/host/cpuinfo.h b/host/include/i386/host/cpuinfo.h index e6f7461378..a6537123cf 100644 --- a/host/include/i386/host/cpuinfo.h +++ b/host/include/i386/host/cpuinfo.h @@ -25,6 +25,7 @@ #define CPUINFO_AVX512DQ (1u << 14) #define CPUINFO_AVX512VBMI2 (1u << 15) #define CPUINFO_ATOMIC_VMOVDQA (1u << 16) +#define CPUINFO_ATOMIC_VMOVDQU (1u << 17) /* Initialized with a constructor. */ extern unsigned cpuinfo; diff --git a/util/cpuinfo-i386.c b/util/cpuinfo-i386.c index 434319aa71..ab6143d9e7 100644 --- a/util/cpuinfo-i386.c +++ b/util/cpuinfo-i386.c @@ -77,8 +77,10 @@ unsigned __attribute__((constructor)) cpuinfo_init(void) * See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104688 */ __cpuid(0, a, b, c, d); - if (c == signature_INTEL_ecx || c == signature_AMD_ecx) { + if (c == signature_INTEL_ecx) { info |= CPUINFO_ATOMIC_VMOVDQA; + } else if (c == signature_AMD_ecx) { + info |= CPUINFO_ATOMIC_VMOVDQA | CPUINFO_ATOMIC_VMOVDQU; } } } |