Messages in this thread | | | From | Vitaly Kuznetsov <> | Subject | Re: [PATCH 6/7] KVM: x86: Ignore benign host accesses to "unsupported" PEBS and BTS MSRs | Date | Tue, 14 Jun 2022 09:45:01 +0200 |
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Sean Christopherson <seanjc@google.com> writes:
> Ignore host userspace reads and writes of '0' to PEBS and BTS MSRs that > KVM reports in the MSR-to-save list, but the MSRs are ultimately > unsupported. All MSRs in said list must be writable by userspace, e.g. > if userspace sends the list back at KVM without filtering out the MSRs it > doesn't need. > > 8183a538cd95 ("KVM: x86/pmu: Add IA32_DS_AREA MSR emulation to support guest DS") > 902caeb6841a ("KVM: x86/pmu: Add PEBS_DATA_CFG MSR emulation to support adaptive PEBS") > c59a1f106f5c ("KVM: x86/pmu: Add IA32_PEBS_ENABLE MSR emulation for extended PEBS")
These are 'Fixes:' tags I suppose?
...
-- Vitaly
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