Commit c8781fea authored by Sean Christopherson's avatar Sean Christopherson Committed by Paolo Bonzini

KVM: SVM: Skip intercepted PAUSE instructions after emulation

Skip PAUSE after interception to avoid unnecessarily re-executing the
instruction in the guest, e.g. after regaining control post-yield.
This is a benign bug as KVM disables PAUSE interception if filtering is
off, including the case where pause_filter_count is set to zero.
Signed-off-by: default avatarSean Christopherson <seanjc@google.com>
Message-Id: <20210205005750.3841462-10-seanjc@google.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 32c23c7d
...@@ -2980,7 +2980,7 @@ static int pause_interception(struct kvm_vcpu *vcpu) ...@@ -2980,7 +2980,7 @@ static int pause_interception(struct kvm_vcpu *vcpu)
grow_ple_window(vcpu); grow_ple_window(vcpu);
kvm_vcpu_on_spin(vcpu, in_kernel); kvm_vcpu_on_spin(vcpu, in_kernel);
return 1; return kvm_skip_emulated_instruction(vcpu);
} }
static int invpcid_interception(struct kvm_vcpu *vcpu) static int invpcid_interception(struct kvm_vcpu *vcpu)
......
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