[PATCH v2 5/5] KVM: arm64: nv: Mark VM as bugged for unexpected VNCR abort

[Oliver Upton <oupton@kernel.org>]

KVM is unlikely to resolve an unexpected VNCR abort, meaning that
returning to the guest will likely leave the vCPU stuck in an abort
loop. Bug the VM and exit to userspace instead.

Signed-off-by: Oliver Upton <oupton@kernel.org>
---
 arch/arm64/kvm/nested.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c
index a6bd60856fc3..e9bd4991f7a0 100644
--- a/arch/arm64/kvm/nested.c
+++ b/arch/arm64/kvm/nested.c
@@ -1484,8 +1484,8 @@ int kvm_handle_vncr_abort(struct kvm_vcpu *vcpu)
 		return kvm_handle_guest_sea(vcpu);
 
 	if (!esr_fsc_is_translation_fault(esr) && !esr_fsc_is_permission_fault(esr)) {
-		WARN_ONCE(1, "Unhandled VNCR abort, ESR=%llx\n", esr);
-		return 1;
+		KVM_BUG(1, vcpu->kvm, "Unhandled VNCR abort, ESR=%llx\n", esr);
+		return -EIO;
 	}
 
 	ret = kvm_translate_vncr(vcpu, &is_gmem);
-- 
2.47.3