| Message ID | 20250215010609.1199982-2-seanjc@google.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | KVM: x86: Fix and a cleanup for async #PFs | expand |
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 58b82d6fd77c..3b67425c3e3d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -13395,7 +13395,7 @@ static bool kvm_can_deliver_async_pf(struct kvm_vcpu *vcpu) return false; if (vcpu->arch.apf.send_user_only && - kvm_x86_call(get_cpl)(vcpu) == 0) + (vcpu->arch.guest_state_protected || !kvm_x86_call(get_cpl)(vcpu))) return false; if (is_guest_mode(vcpu)) {
Don't inject PV async #PFs into guests with protected register state, i.e. SEV-ES and SEV-SNP guests, unless the guest has opted-in to receiving #PFs at CPL0. For protected guests, the actual CPL of the guest is unknown. Note, no sane CoCo guest should enable PV async #PF, but the current state of Linux-as-a-CoCo-guest isn't entirely sane. Fixes: add5e2f04541 ("KVM: SVM: Add support for the SEV-ES VMSA") Signed-off-by: Sean Christopherson <seanjc@google.com> --- arch/x86/kvm/x86.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)