Re: [PATCH v2 0/6] target/i386: Support new Intel platform Instructions in CPUID enumeration

[Xiaoyao Li]

On 3/3/2023 2:59 PM, Tao Su wrote:
> Intel platforms Granite Rapids/Sierra Forest introduce below new
> instructions and CPUID leaves:
>
>   - 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].
>
> KVM part of advertising these CPUID bits have been already in Linux
> mainline from commit(6a19d7aa5821) to commit(29c46979b25d). This series
> adds the counterpart in QEMU to allow these features exposed to guest.
>
> [1] Intel ISE: https://cdrdv2.intel.com/v1/dl/getContent/671368

For the whole series,

Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>

> ---
>
> Changelog:
>
> v2:
>   - Rebase to latest QEMU.
>   - Improve changelog.
> v1:
>   - 
> https://lore.kernel.org/all/20221208071917.1923093-1-jiaxi.chen@linux.intel.com/
>
> 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 | 14 ++++++++++++++
>   2 files changed, 37 insertions(+), 3 deletions(-)
>
>
> base-commit: 627634031092e1514f363fd8659a579398de0f0e