OLK-5.10: GNR-SRF new KVM ISA support · Pull Request !2888 · openEuler/kernel

Title: GNR-SRF new KVM ISA support

Content: Support new KVM instructions in Granite Rapids and Sierra Forest platform.
Add support following instruction in CPUID enumeration.
CMPCCXADD
AMX-FP16
AVX-NE-CONVERT
AVX-IFMA
PREFETCHIT0-1
AVX-VNNI-INT8

Commits:
commit c4690d016182 ("KVM: x86: Add BUILD_BUG_ON() to detect bad usage of "scattered" flags")
commit 047c72299061 ("KVM: x86: Update KVM-only leaf handling to allow for 100% KVM-only leafs")
commit 6a19d7aa5821 ("x86: KVM: Advertise CMPccXADD CPUID to user space")
commit af2872f62254 ("x86: KVM: Advertise AMX-FP16 CPUID to user space")
commit 5e85c4ebf206 ("x86: KVM: Advertise AVX-IFMA CPUID to user space")
commit 24d74b9f5f2a ("KVM: x86: Advertise AVX-VNNI-INT8 CPUID to user space")
commit 9977f0877de7 ("KVM: x86: Advertise AVX-NE-CONVERT CPUID to user space")
commit 29c46979b25d ("KVM: x86: Advertise PREFETCHIT0/1 CPUID to user space")

#I8GYV5: Add GNR/SRF new ISA support

Test:
Boot test on GNR/SRF server and check cpuid output to confirm instruction is enabled: PASS

Known issue:
N/A

Default config change:
N/A

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