KVM: arm64: Fix out-of-IPA space translation fault handling

Commit 11e5ea5242e3 ("KVM: arm64: Use helpers to classify exception
types reported via ESR") tried to abstract the translation fault
check when handling an out-of IPA space condition, but incorrectly
replaced it with a permission fault check.

Restore the previous translation fault check.

Fixes: 11e5ea5242e3 ("KVM: arm64: Use helpers to classify exception types reported via ESR")
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Wujie Duan <wjduan@linx-info.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/kvmarm/864jd3269g.wl-maz@kernel.org/
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 18680771cdb0ea4c9ee2fcea29d1219189fda752..dc04bc7678659a0d6d5a69636bca48673a83047e 100644 (file)
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -1637,7 +1637,7 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu)
        fault_ipa = kvm_vcpu_get_fault_ipa(vcpu);
        is_iabt = kvm_vcpu_trap_is_iabt(vcpu);
 
-       if (esr_fsc_is_permission_fault(esr)) {
+       if (esr_fsc_is_translation_fault(esr)) {
                /* Beyond sanitised PARange (which is the IPA limit) */
                if (fault_ipa >= BIT_ULL(get_kvm_ipa_limit())) {
                        kvm_inject_size_fault(vcpu);