From: Dongjiu Geng <gengdong...@huawei.com>

kvm_vcpu_dabt_isextabt() tries to match a full fault syndrome, but
calls kvm_vcpu_trap_get_fault_type() that only returns the fault class,
thus reducing the scope of the check. This doesn't cause any observable
bug yet as we end-up matching a closely related syndrome for which we
return the same value.

Using kvm_vcpu_trap_get_fault() instead fixes it for good.

Signed-off-by: Dongjiu Geng <gengdong...@huawei.com>
Acked-by: Marc Zyngier <marc.zyng...@arm.com>
Signed-off-by: Christoffer Dall <christoffer.d...@linaro.org>
---
 arch/arm/include/asm/kvm_emulate.h   | 2 +-
 arch/arm64/include/asm/kvm_emulate.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/kvm_emulate.h 
b/arch/arm/include/asm/kvm_emulate.h
index dcae3970148d..3d22eb87f919 100644
--- a/arch/arm/include/asm/kvm_emulate.h
+++ b/arch/arm/include/asm/kvm_emulate.h
@@ -233,7 +233,7 @@ static inline u8 kvm_vcpu_trap_get_fault_type(struct 
kvm_vcpu *vcpu)
 
 static inline bool kvm_vcpu_dabt_isextabt(struct kvm_vcpu *vcpu)
 {
-       switch (kvm_vcpu_trap_get_fault_type(vcpu)) {
+       switch (kvm_vcpu_trap_get_fault(vcpu)) {
        case FSC_SEA:
        case FSC_SEA_TTW0:
        case FSC_SEA_TTW1:
diff --git a/arch/arm64/include/asm/kvm_emulate.h 
b/arch/arm64/include/asm/kvm_emulate.h
index bf61da0ef82b..5f28dfa14cee 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -240,7 +240,7 @@ static inline u8 kvm_vcpu_trap_get_fault_type(const struct 
kvm_vcpu *vcpu)
 
 static inline bool kvm_vcpu_dabt_isextabt(const struct kvm_vcpu *vcpu)
 {
-       switch (kvm_vcpu_trap_get_fault_type(vcpu)) {
+       switch (kvm_vcpu_trap_get_fault(vcpu)) {
        case FSC_SEA:
        case FSC_SEA_TTW0:
        case FSC_SEA_TTW1:
-- 
2.14.2

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