Re: [PATCH 0/6] target/i386: Support new Intel platform Instructions in CPUID enumeration

[Jiaxi Chen]

Kindly ping for any comments.

BR,
Jiaxi

On 12/8/2022 3:19 PM, Jiaxi Chen wrote:
> Latest Intel platform Granite Rapids/Sierra Forest has introduced below
> new instructions and CPUIDs:
> 
>  - CMPccXADD CPUID.(EAX=7,ECX=1):EAX[bit 7]
>  - AMX-FP16 CPUID.(EAX=7,ECX=1):EAX[bit 21]
>  - AVX-IFMA CPUID.(EAX=7,ECX=1):EAX[bit 23]
>  - AVX-VNNI-INT8 CPUID.(EAX=7,ECX=1):EDX[bit 4]
>  - AVX-NE-CONVERT CPUID.(EAX=7,ECX=1):EDX[bit 5]
>  - PREFETCHITI CPUID.(EAX=7,ECX=1):EDX[bit 14]
> 
> Details can be found in recent Intel ISE (Instruction Set Extensions)[1].
> 
> Linux 6.2 will support for advertising these features to userspace. KVM
> patches have been merged into kvm/next[2]. This patch series adds CPUID
> definitions of the corresponding features in QEMU. 
> 
> [1] Intel ISE: https://cdrdv2.intel.com/v1/dl/getContent/671368
> [2] kvm/next: https://git.kernel.org/pub/scm/virt/kvm/kvm.git
> 
> Jiaxi Chen (6):
>   target/i386: Add support for CMPCCXADD in CPUID enumeration
>   target/i386: Add support for AMX-FP16 in CPUID enumeration
>   target/i386: Add support for AVX-IFMA in CPUID enumeration
>   target/i386: Add support for AVX-VNNI-INT8 in CPUID enumeration
>   target/i386: Add support for AVX-NE-CONVERT in CPUID enumeration
>   target/i386: Add support for PREFETCHIT0/1 in CPUID enumeration
> 
>  target/i386/cpu.c | 26 +++++++++++++++++++++++---
>  target/i386/cpu.h | 15 +++++++++++++++
>  2 files changed, 38 insertions(+), 3 deletions(-)
> 
> 
> base-commit: ea3a008d2d9ced9c4f93871c823baee237047f93

-- 
Regards,
Jiaxi