KVM: PPC: Only WARN on invalid emulation

When we hit an emulation result that we didn't expect, that is an error,
but it's nothing that warrants a BUG(), because it can be guest triggered.

So instead, let's only WARN() the user that this happened.

Signed-off-by: Alexander Graf <agraf@suse.de>

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index be83fca2e8fd819bea0649f23a87200dd2e6ad04..e2225e5b8a4cb45e216f5a4e1400bc44a8003d65 100644 (file)
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -237,7 +237,8 @@ int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu)
                r = RESUME_HOST;
                break;
        default:
-               BUG();
+               WARN_ON(1);
+               r = RESUME_GUEST;
        }
 
        return r;