ARM: KVM: abstract (and fix) external abort detection away

Bit 8 is cache maintenance, bit 9 is external abort.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu>

2 files changed, 8 insertions, 0 deletions

diff --git a/arch/arm/include/asm/kvm_arm.h b/arch/arm/include/asm/kvm_arm.h
index 7c3d813e15df..990764e89489 100644
--- a/arch/arm/include/asm/kvm_arm.h
+++ b/arch/arm/include/asm/kvm_arm.h
@@ -211,4 +211,7 @@
 
 #define HSR_HVC_IMM_MASK        ((1UL << 16) - 1)
 
+#define HSR_DABT_CM             (1U << 8)
+#define HSR_DABT_EA             (1U << 9)
+
 #endif /* __ARM_KVM_ARM_H__ */
diff --git a/arch/arm/include/asm/kvm_emulate.h b/arch/arm/include/asm/kvm_emulate.h
index d548078af4d8..2d1c5854243b 100644
--- a/arch/arm/include/asm/kvm_emulate.h
+++ b/arch/arm/include/asm/kvm_emulate.h
@@ -110,4 +110,9 @@ static inline int kvm_vcpu_dabt_get_rd(struct kvm_vcpu *vcpu)
         return (kvm_vcpu_get_hsr(vcpu) & HSR_SRT_MASK) >> HSR_SRT_SHIFT;
 }
 
+static inline bool kvm_vcpu_dabt_isextabt(struct kvm_vcpu *vcpu)
+{
+        return kvm_vcpu_get_hsr(vcpu) & HSR_DABT_EA;
+}
+
 #endif /* __ARM_KVM_EMULATE_H__ */