* [PATCH] i386/cpu: Remove AVX_VNNI feature from Cooperlake cpu model
@ 2021-08-20 5:46 Yang Zhong
2021-08-20 21:03 ` Eduardo Habkost
0 siblings, 1 reply; 2+ messages in thread
From: Yang Zhong @ 2021-08-20 5:46 UTC (permalink / raw)
To: qemu-devel; +Cc: ehabkost, chayang, plai, pbonzini, ailan, nanliu
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 |
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] i386/cpu: Remove AVX_VNNI feature from Cooperlake cpu model
2021-08-20 5:46 [PATCH] i386/cpu: Remove AVX_VNNI feature from Cooperlake cpu model Yang Zhong
@ 2021-08-20 21:03 ` Eduardo Habkost
0 siblings, 0 replies; 2+ messages in thread
From: Eduardo Habkost @ 2021-08-20 21:03 UTC (permalink / raw)
To: Yang Zhong; +Cc: chayang, qemu-devel, plai, pbonzini, ailan, nanliu
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
^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-08-20 5:46 [PATCH] i386/cpu: Remove AVX_VNNI feature from Cooperlake cpu model Yang Zhong
2021-08-20 21:03 ` Eduardo Habkost
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