summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--arch/x86/kvm/cpuid.h3
-rw-r--r--arch/x86/kvm/governed_features.h1
-rw-r--r--arch/x86/kvm/mmu.h3
-rw-r--r--arch/x86/kvm/vmx/vmx.c1
4 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index e4bd59c15a2c..856e3037e74f 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -276,8 +276,7 @@ static __always_inline bool guest_can_use(struct kvm_vcpu *vcpu,
static inline bool kvm_vcpu_is_legal_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
{
- if (kvm_cpu_cap_has(X86_FEATURE_LAM) &&
- guest_cpuid_has(vcpu, X86_FEATURE_LAM))
+ if (guest_can_use(vcpu, X86_FEATURE_LAM))
cr3 &= ~(X86_CR3_LAM_U48 | X86_CR3_LAM_U57);
return kvm_vcpu_is_legal_gpa(vcpu, cr3);
diff --git a/arch/x86/kvm/governed_features.h b/arch/x86/kvm/governed_features.h
index 423a73395c10..ad463b1ed4e4 100644
--- a/arch/x86/kvm/governed_features.h
+++ b/arch/x86/kvm/governed_features.h
@@ -16,6 +16,7 @@ KVM_GOVERNED_X86_FEATURE(PAUSEFILTER)
KVM_GOVERNED_X86_FEATURE(PFTHRESHOLD)
KVM_GOVERNED_X86_FEATURE(VGIF)
KVM_GOVERNED_X86_FEATURE(VNMI)
+KVM_GOVERNED_X86_FEATURE(LAM)
#undef KVM_GOVERNED_X86_FEATURE
#undef KVM_GOVERNED_FEATURE
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
index 580e2414b88c..60f21bb4c27b 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -148,8 +148,7 @@ static inline unsigned long kvm_get_active_pcid(struct kvm_vcpu *vcpu)
static inline unsigned long kvm_get_active_cr3_lam_bits(struct kvm_vcpu *vcpu)
{
- if (!kvm_cpu_cap_has(X86_FEATURE_LAM) ||
- !guest_cpuid_has(vcpu, X86_FEATURE_LAM))
+ if (!guest_can_use(vcpu, X86_FEATURE_LAM))
return 0;
return kvm_read_cr3(vcpu) & (X86_CR3_LAM_U48 | X86_CR3_LAM_U57);
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 3825ab316be9..d30df9b3fe3e 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7763,6 +7763,7 @@ static void vmx_vcpu_after_set_cpuid(struct kvm_vcpu *vcpu)
kvm_governed_feature_check_and_set(vcpu, X86_FEATURE_XSAVES);
kvm_governed_feature_check_and_set(vcpu, X86_FEATURE_VMX);
+ kvm_governed_feature_check_and_set(vcpu, X86_FEATURE_LAM);
vmx_setup_uret_msrs(vmx);