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| author |   Sean Christopherson <seanjc@google.com> | 2023-08-15 13:36:48 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-08-17 11:43:29 -0700 |
| commit | 4d2a1560ffc29525493829ee31dc069c00c52c69 (patch) | |
| tree | 503e449a49e5ab21490a415c4cdb2f7d7b09b96c /arch/x86/kvm/svm/nested.c | |
| parent | KVM: nSVM: Use KVM-governed feature framework to track "TSC scaling enabled" (diff) | |
| download | wireguard-linux-4d2a1560ffc29525493829ee31dc069c00c52c69.tar.xz wireguard-linux-4d2a1560ffc29525493829ee31dc069c00c52c69.zip | |
KVM: nSVM: Use KVM-governed feature framework to track "vVM{SAVE,LOAD} enabled"
Track "virtual VMSAVE/VMLOAD exposed to L1" via a governed feature flag
instead of using a dedicated bit/flag in vcpu_svm.
Opportunistically add a comment explaining why KVM disallows virtual
VMLOAD/VMSAVE when the vCPU model is Intel.
No functional change intended.
Link: https://lore.kernel.org/r/20230815203653.519297-11-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/svm/nested.c')
| -rw-r--r-- | arch/x86/kvm/svm/nested.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c index da65948064dc..24d47ebeb0e0 100644 --- a/arch/x86/kvm/svm/nested.c +++ b/arch/x86/kvm/svm/nested.c @@ -107,7 +107,7 @@ static void nested_svm_uninit_mmu_context(struct kvm_vcpu *vcpu) static bool nested_vmcb_needs_vls_intercept(struct vcpu_svm *svm) { - if (!svm->v_vmload_vmsave_enabled) + if (!guest_can_use(&svm->vcpu, X86_FEATURE_V_VMSAVE_VMLOAD)) return true; if (!nested_npt_enabled(svm)) |