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]. This series enables related CPUID bit in the kernel feature bits and expose them to KVM guest OS. [1] Intel ISE: https://cdrdv2.intel.com/v1/dl/getContent/671368 Chang S. Bae (1): x86: KVM: Enable AMX-FP16 CPUID and expose it to guest Jiaxi Chen (5): x86: KVM: Enable CMPccXADD CPUID and expose it to guest x86: KVM: Enable AVX-IFMA CPUID and expose it to guest x86: KVM: Enable AVX-VNNI-INT8 CPUID and expose it to guest x86: KVM: Enable AVX-NE-CONVERT CPUID and expose it to guest x86: KVM: Enable PREFETCHIT0/1 CPUID and expose it to guest arch/x86/include/asm/cpufeature.h | 7 +++++-- arch/x86/include/asm/cpufeatures.h | 10 +++++++++- arch/x86/include/asm/disabled-features.h | 3 ++- arch/x86/include/asm/required-features.h | 3 ++- arch/x86/kernel/cpu/common.c | 1 + arch/x86/kvm/cpuid.c | 8 ++++++-- arch/x86/kvm/reverse_cpuid.h | 1 + 7 files changed, 26 insertions(+), 7 deletions(-) base-commit: e18d6152ff0f41b7f01f9817372022df04e0d354 -- 2.27.0
