Re: [PATCH] kvm: limit the maximum CPUID.0xA.edx[0..4] to 3

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Anyone has suggestion?

When the host kernel before this commit 2e8cd7a3b828 ("kvm: x86: limit the maximum number of vPMU
fixed counters to 3") on icelake microarchitecture and newer, execute cpuid in the Guest:

Architecture Performance Monitoring Features (0xa/edx):
    number of fixed counters    = 0x4 (4)

This is not inconsistent with num_architectural_pmu_fixed_counters in QEMU.




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