diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2022-08-30 16:37:19 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-09-26 19:02:47 +0300 |
| commit | 4da77090b0fcec1aa430e67631a1474343a33738 (patch) | |
| tree | 77de6c389ad807036971e1c9aa2c1dd25489903f /arch/x86/kvm/vmx/vmx.c | |
| parent | 3ff8a13d41b283932ec6ac692c6def22a157269b (diff) | |
KVM: nVMX: Support PERF_GLOBAL_CTRL with enlightened VMCS
Enlightened VMCS v1 got updated and now includes the required fields
for loading PERF_GLOBAL_CTRL upon VMENTER/VMEXIT features. For KVM on
Hyper-V enablement, KVM can just observe VMX control MSRs and use the
features (with or without eVMCS) when possible.
Hyper-V on KVM is messier as Windows 11 guests fail to boot if the
controls are advertised and a new PV feature flag, CPUID.0x4000000A.EBX
BIT(0), is not set. Honor the Hyper-V CPUID feature flag to play nice
with Windows guests.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20220830133737.1539624-16-vkuznets@redhat.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 8ab46d4b6d78..a1efa82e8399 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -1931,7 +1931,7 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) * features out. */ if (!msr_info->host_initiated && guest_cpuid_has_evmcs(vcpu)) - nested_evmcs_filter_control_msr(msr_info->index, + nested_evmcs_filter_control_msr(vcpu, msr_info->index, &msr_info->data); break; case MSR_IA32_RTIT_CTL: |