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support avx-vnni #8710

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haiwei-li opened this issue Aug 28, 2024 · 0 comments
Open

support avx-vnni #8710

haiwei-li opened this issue Aug 28, 2024 · 0 comments

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@haiwei-li
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ACRN hypervisor shall expose AVX-VNNI to any VM.

CPUID.(EAX=7H, ECX=1H):EAX.AVX-VNNI[4] = 1

execute instructiong VPDPBUSD, VPDPBUSDS, VPDPWSSD, VPDPWSSDS pass.
haiwei-li added a commit to haiwei-li/acrn-hypervisor that referenced this issue Sep 5, 2024
@haiwei-li
hv: cpuid: expose CPUID.EAX=07H to VMs
402d356 
Per SDM, VPDPBUSD/VPDPBUSDS/VPDPWSSD/VPDPWSSDS instructions depend on
CPUID Feature Flag 'AVX-VNNI, AVX512_VNNI, AVX512VL'. 'AVX512_VNNI' and
'AVX512VL' are already exposed to any VM.

'AVX-VNNI' is in CPUID.(EAX=07H,ECX=1):EAX.AVX-VNNI[bit 4]. This patch
is to expose all the CPUID.EAX=07H features to VMs.

Mask corresponding bits if want to disable some features in the future.

Tracked-On: projectacrn#8710
Signed-off-by: Haiwei Li <[email protected]>
haiwei-li added a commit to haiwei-li/acrn-hypervisor that referenced this issue Sep 5, 2024
@haiwei-li
hv: cpuid: expose CPUID.EAX=07H to VMs
ba9df27 
Per SDM, VPDPBUSD/VPDPBUSDS/VPDPWSSD/VPDPWSSDS instructions depend on
CPUID Feature Flag 'AVX-VNNI, AVX512_VNNI, AVX512VL'. 'AVX512_VNNI' and
'AVX512VL' are already exposed to any VM.

'AVX-VNNI' is in CPUID.(EAX=07H,ECX=1):EAX.AVX-VNNI[bit 4]. This patch
is to expose all the CPUID.EAX=07H features to VMs.

Mask corresponding bits if want to disable some features in the future.

Tracked-On: projectacrn#8710
Reviewed-by: Fei Li <[email protected]>
Signed-off-by: Haiwei Li <[email protected]>
@haiwei-li haiwei-li mentioned this issue Sep 5, 2024
Merged
haiwei-li added a commit to haiwei-li/acrn-hypervisor that referenced this issue Sep 9, 2024
@haiwei-li
hv: cpuid: expose CPUID.EAX=07H subleaf to VMs
8525a87 
Per SDM, VPDPBUSD/VPDPBUSDS/VPDPWSSD/VPDPWSSDS instructions depend on
CPUID Feature Flag 'AVX-VNNI, AVX512_VNNI, AVX512VL'. 'AVX512_VNNI' and
'AVX512VL' are already exposed to any VM.

'AVX-VNNI' is in CPUID.(EAX=07H,ECX=1):EAX.AVX-VNNI[bit 4]. This patch
is to expose all the CPUID.EAX=07H subleaf features to VMs.

Mask corresponding bits if want to disable some features in the future.

Tracked-On: projectacrn#8710
Reviewed-by: Fei Li <[email protected]>
Signed-off-by: Haiwei Li <[email protected]>
acrnsi-robot pushed a commit that referenced this issue Sep 9, 2024
@haiwei-li @acrnsi-robot
hv: cpuid: expose CPUID.EAX=07H subleaf to VMs
17c4ce7 
Per SDM, VPDPBUSD/VPDPBUSDS/VPDPWSSD/VPDPWSSDS instructions depend on
CPUID Feature Flag 'AVX-VNNI, AVX512_VNNI, AVX512VL'. 'AVX512_VNNI' and
'AVX512VL' are already exposed to any VM.

'AVX-VNNI' is in CPUID.(EAX=07H,ECX=1):EAX.AVX-VNNI[bit 4]. This patch
is to expose all the CPUID.EAX=07H subleaf features to VMs.

Mask corresponding bits if want to disable some features in the future.

Tracked-On: #8710
Reviewed-by: Fei Li <[email protected]>
Signed-off-by: Haiwei Li <[email protected]>
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