| From | Steven Price <> | Subject | [RFC PATCH 21/28] KVM: arm64: WARN on injected undef exceptions | Date | Fri, 27 Jan 2023 11:29:25 +0000 |
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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@arm.com> --- arch/arm64/kvm/inject_fault.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c index f32f4a2a347f..29966a3e5a71 100644 --- a/arch/arm64/kvm/inject_fault.c +++ b/arch/arm64/kvm/inject_fault.c @@ -175,6 +175,8 @@ void kvm_inject_size_fault(struct kvm_vcpu *vcpu) */ void kvm_inject_undefined(struct kvm_vcpu *vcpu) { + if (vcpu_is_rec(vcpu)) + WARN(1, "Cannot inject undefined exception into REC. Continuing with unknown behaviour"); if (vcpu_el1_is_32bit(vcpu)) inject_undef32(vcpu); else -- 2.34.1
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