diff mbox series

[v3,2/4] KVM: x86: add X86_FEATURE_LA57 to governed_features

Message ID 20240815123349.729017-3-mlevitsk@redhat.com (mailing list archive)
State New, archived
Headers show
Series Relax canonical checks on some arch msrs | expand

Commit Message

Maxim Levitsky Aug. 15, 2024, 12:33 p.m. UTC 
Guest support for X86_FEATURE_LA57 will need to be tested to determine
canonical width check for nested VMX VM entries.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
---
 arch/x86/kvm/cpuid.c             | 2 ++
 arch/x86/kvm/governed_features.h | 1 +
 2 files changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 2617be544480..1a2d3fbe9a59 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -373,6 +373,8 @@  static void kvm_vcpu_after_set_cpuid(struct kvm_vcpu *vcpu)
 	if (allow_gbpages)
 		kvm_governed_feature_set(vcpu, X86_FEATURE_GBPAGES);
 
+	kvm_governed_feature_check_and_set(vcpu, X86_FEATURE_LA57);
+
 	best = kvm_find_cpuid_entry(vcpu, 1);
 	if (best && apic) {
 		if (cpuid_entry_has(best, X86_FEATURE_TSC_DEADLINE_TIMER))
diff --git a/arch/x86/kvm/governed_features.h b/arch/x86/kvm/governed_features.h
index ad463b1ed4e4..475171f2fd49 100644
--- a/arch/x86/kvm/governed_features.h
+++ b/arch/x86/kvm/governed_features.h
@@ -17,6 +17,7 @@  KVM_GOVERNED_X86_FEATURE(PFTHRESHOLD)
 KVM_GOVERNED_X86_FEATURE(VGIF)
 KVM_GOVERNED_X86_FEATURE(VNMI)
 KVM_GOVERNED_X86_FEATURE(LAM)
+KVM_GOVERNED_X86_FEATURE(LA57)
 
 #undef KVM_GOVERNED_X86_FEATURE
 #undef KVM_GOVERNED_FEATURE