Messages in this thread | | | Date | Thu, 28 Jul 2022 22:34:26 +0000 | From | Sean Christopherson <> | Subject | Re: [PATCH v4 21/25] KVM: VMX: Move LOAD_IA32_PERF_GLOBAL_CTRL errata handling out of setup_vmcs_config() |
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On Fri, Jul 29, 2022, Paolo Bonzini wrote: > On 7/22/22 00:56, Sean Christopherson wrote: > > Except the errata are based on FMS and the FMS exposed to the L1 hypervisor may > > not be the real FMS. > > > > But that's moot, because they_should_ be fully emulated by KVM anyways; KVM > > runs L2 with a MSR value modified by perf, not the raw MSR value requested by L1. > > > > Of course KVM screws things up and fails to clear the flag in entry controls... > > All exit controls are emulated so at least KVM gets those right. > > Can you send this as a separate patch?
Will do.
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