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

commit f5fe0adeed upstream.

Commit 11e5ea5242 ("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: 11e5ea5242 ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wujie Duan 2024-03-18 17:47:35 +08:00 committed by Greg Kroah-Hartman
parent af920e30dd
commit bff16ba50d
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/kvm/mmu.c
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@ -1631,7 +1631,7 @@ 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);