[PATCH] cpu_map: Add cpu feature amx

[Martin Kletzander]

On Tue, Sep 13, 2022 at 12:30:31PM -0700, Lin Yang wrote:
>AMX was introduced in QEMU commit 1f16764f7d4515bfd5e4ae0aae814fa280a7d0c8
>and following commits.

Some of them not pushed yet I believe:

https://lists.gnu.org/archive/html/qemu-devel/2022-08/msg01936.html

Otherwise the patch looks good (I'm not sure what's the planned usage of
the python script, but this patch just adds features that'd be missing
in the future, so I think it's fine).

Reviewed-by: Martin Kletzander <mkletzan at redhat.com>

>---
> src/cpu_map/sync_qemu_i386.py | 3 +++
> src/cpu_map/x86_features.xml  | 9 +++++++++
> 2 files changed, 12 insertions(+)
>
>diff --git a/src/cpu_map/sync_qemu_i386.py b/src/cpu_map/sync_qemu_i386.py
>index 4dd9f3b84d..6a46f87cff 100755
>--- a/src/cpu_map/sync_qemu_i386.py
>+++ b/src/cpu_map/sync_qemu_i386.py
>@@ -72,6 +72,9 @@ def translate_feature(name):
>         "CPUID_7_0_EDX_SPEC_CTRL": "spec-ctrl",
>         "CPUID_7_0_EDX_SPEC_CTRL_SSBD": "ssbd",
>         "CPUID_7_0_EDX_STIBP": "stibp",
>+        "CPUID_7_0_EDX_AMX_BF16": "amx-bf16",
>+        "CPUID_7_0_EDX_AMX_TILE": "amx-tile",
>+        "CPUID_7_0_EDX_AMX_INT8": "amx-int8",
>         "CPUID_7_1_EAX_AVX512_BF16": "avx512-bf16",
>         "CPUID_7_1_EAX_AVX_VNNI": "avx-vnni",
>         "CPUID_8000_0008_EBX_AMD_SSBD": "amd-ssbd",
>diff --git a/src/cpu_map/x86_features.xml b/src/cpu_map/x86_features.xml
>index 4cf3ff0804..102d39f626 100644
>--- a/src/cpu_map/x86_features.xml
>+++ b/src/cpu_map/x86_features.xml
>@@ -347,6 +347,15 @@
>   <feature name='pconfig'>
>     <cpuid eax_in='0x07' ecx_in='0x00' edx='0x00040000'/>
>   </feature>
>+  <feature name='amx-bf16'>
>+    <cpuid eax_in='0x07' ecx_in='0x00' edx='0x00400000'/>
>+  </feature>
>+  <feature name='amx-tile'>
>+    <cpuid eax_in='0x07' ecx_in='0x00' edx='0x01000000'/>
>+  </feature>
>+  <feature name='amx-int8'>
>+    <cpuid eax_in='0x07' ecx_in='0x00' edx='0x02000000'/>
>+  </feature>
>   <feature name='spec-ctrl'>
>     <cpuid eax_in='0x07' ecx_in='0x00' edx='0x04000000'/>
>   </feature>
>-- 
>2.34.1
>
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