Commit f4de6a1f authored Nov 01, 2022 by Vitaly Kuznetsov Committed by Paolo Bonzini Nov 18, 2022

KVM: x86: Expose Hyper-V L2 TLB flush feature



With both nSVM and nVMX implementations in place, KVM can now expose
Hyper-V L2 TLB flush feature to userspace.

Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221101145426.251680-30-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

parent 3f4a812e

arch/x86/kvm/hyperv.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -2779,6 +2779,7 @@ int kvm_get_hv_cpuid(struct kvm_vcpu vcpu, struct kvm_cpuid2 cpuid,

		case HYPERV_CPUID_NESTED_FEATURES:
		ent->eax = evmcs_ver;
		ent->eax \|= HV_X64_NESTED_DIRECT_FLUSH;
		ent->eax \|= HV_X64_NESTED_MSR_BITMAP;
		ent->ebx \|= HV_X64_NESTED_EVMCS1_PERF_GLOBAL_CTRL;
		break;