The RMM doesn't allow injection of a undefined exception into a realm
guest. Add a WARN to catch if this ever happens.
Signed-off-by: Steven Price <steven.price@xxxxxxx>
---
Changes since v6:
* if (x) WARN(1, ...) makes no sense, just WARN(x, ...)!
---
arch/arm64/kvm/inject_fault.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c
index 2a9682b9834f..7dba6fc8c41d 100644
--- a/arch/arm64/kvm/inject_fault.c
+++ b/arch/arm64/kvm/inject_fault.c
@@ -226,6 +226,7 @@ void kvm_inject_size_fault(struct kvm_vcpu *vcpu)
*/
void kvm_inject_undefined(struct kvm_vcpu *vcpu)
{
+ WARN(vcpu_is_rec(vcpu), "Unexpected undefined exception injection to REC");
if (vcpu_el1_is_32bit(vcpu))
inject_undef32(vcpu);
else
--
2.43.0
