KVM: x86: always allow host-initiated writes to PMU MSRs
authorPaolo Bonzini <pbonzini@redhat.com>
Wed, 25 May 2022 08:39:22 +0000 (04:39 -0400)
committerPaolo Bonzini <pbonzini@redhat.com>
Wed, 8 Jun 2022 08:48:40 +0000 (04:48 -0400)
commitd1c88a4020567ba4da52f778bcd9619d87e4ea75
treebe0105851a384baec1e10ca214286743eb9e28f8
parentbfb088d9fb5abdd3fbf00bae9abdfee8b92265aa
KVM: x86: always allow host-initiated writes to PMU MSRs

Whenever an MSR is part of KVM_GET_MSR_INDEX_LIST, it has to be always
retrievable and settable with KVM_GET_MSR and KVM_SET_MSR.  Accept
the PMU MSRs unconditionally in intel_is_valid_msr, if the access was
host-initiated.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/pmu.c
arch/x86/kvm/pmu.h
arch/x86/kvm/svm/pmu.c
arch/x86/kvm/vmx/pmu_intel.c
arch/x86/kvm/x86.c