diff options
| author | Jing Liu <jing2.liu@linux.intel.com> | 2019-07-25 14:14:16 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-08-20 20:00:52 +0200 |
| commit | 80db491da4ce8b199e0e8d1e23943b20aab82f69 (patch) | |
| tree | b0d325ec6f68410fd19615af2c47becdb365af07 /target/i386/kvm.c | |
| parent | de594e47659029316bbf9391efb79da0a1a08e08 (diff) | |
x86: Intel AVX512_BF16 feature enabling
Intel CooperLake cpu adds AVX512_BF16 instruction, defining as
CPUID.(EAX=7,ECX=1):EAX[bit 05].
The patch adds a property for setting the subleaf of CPUID leaf 7 in
case that people would like to specify it.
The release spec link as follows,
https://software.intel.com/sites/default/files/managed/c5/15/\
architecture-instruction-set-extensions-programming-reference.pdf
Signed-off-by: Jing Liu <jing2.liu@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/i386/kvm.c')
| -rw-r--r-- | target/i386/kvm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/target/i386/kvm.c b/target/i386/kvm.c index 615dfce909..8023c679ea 100644 --- a/target/i386/kvm.c +++ b/target/i386/kvm.c @@ -1501,6 +1501,7 @@ int kvm_arch_init_vcpu(CPUState *cs) c = &cpuid_data.entries[cpuid_i++]; } break; + case 0x7: case 0x14: { uint32_t times; @@ -1513,7 +1514,7 @@ int kvm_arch_init_vcpu(CPUState *cs) for (j = 1; j <= times; ++j) { if (cpuid_i == KVM_MAX_CPUID_ENTRIES) { fprintf(stderr, "cpuid_data is full, no space for " - "cpuid(eax:0x14,ecx:0x%x)\n", j); + "cpuid(eax:0x%x,ecx:0x%x)\n", i, j); abort(); } c = &cpuid_data.entries[cpuid_i++]; |