From: Vitaly Kuznetsov Date: Tue, 1 Nov 2022 14:54:07 +0000 (+0100) Subject: KVM: x86: Expose Hyper-V L2 TLB flush feature X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f4de6a1fa3ee81197239603756fc5c4259e5ef1b;p=linux.git 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 Reviewed-by: Sean Christopherson Signed-off-by: Vitaly Kuznetsov Signed-off-by: Paolo Bonzini Message-Id: <20221101145426.251680-30-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini --- diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 15880da73a7b1..2c7f2a26421e8 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -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;