i386/cpu: Remove AVX_VNNI feature from Cooperlake cpu model

[PATCH] i386/cpu: Remove AVX_VNNI feature from Cooperlake cpu model

Yang Zhong posted 1 patch 4 years, 5 months ago

Download mbox

Test checkpatch passed

Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/qemu tags/patchew/20210820054611.84303-1-yang.zhong@intel.com

target/i386/cpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Expand all Fold all

[PATCH] i386/cpu: Remove AVX_VNNI feature from Cooperlake cpu model

Posted by Yang Zhong 4 years, 5 months ago

The AVX_VNNI feature is not in Cooperlake platform, remove it
from cpu model.

Signed-off-by: Yang Zhong <yang.zhong@intel.com>
---
 target/i386/cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 34a7ce865b..24ddc5b926 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -3102,7 +3102,7 @@ static const X86CPUDefinition builtin_x86_defs[] = {
             MSR_ARCH_CAP_SKIP_L1DFL_VMENTRY | MSR_ARCH_CAP_MDS_NO |
             MSR_ARCH_CAP_PSCHANGE_MC_NO | MSR_ARCH_CAP_TAA_NO,
         .features[FEAT_7_1_EAX] =
-            CPUID_7_1_EAX_AVX_VNNI | CPUID_7_1_EAX_AVX512_BF16,
+            CPUID_7_1_EAX_AVX512_BF16,
         /* XSAVES is added in version 2 */
         .features[FEAT_XSAVE] =
             CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XSAVEC |

Re: [PATCH] i386/cpu: Remove AVX_VNNI feature from Cooperlake cpu model

Posted by Eduardo Habkost 4 years, 5 months ago

On Fri, Aug 20, 2021 at 01:46:11PM +0800, Yang Zhong wrote:
> The AVX_VNNI feature is not in Cooperlake platform, remove it
> from cpu model.
> 
> Signed-off-by: Yang Zhong <yang.zhong@intel.com>

Fixes: c1826ea6a052 ("i386/cpu: Expose AVX_VNNI instruction to guest")

Queued, thanks!

-- 
Eduardo