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| author | Marc Zyngier <marc.zyngier@arm.com> | 2012-09-18 10:36:16 (GMT) |
|---|---|---|
| committer | Christoffer Dall <cdall@cs.columbia.edu> | 2013-03-06 23:48:42 (GMT) |
| commit | 78abfcde49e0e454cabf8e56cd4c1591752e2706 (patch) | |
| tree | 52a67b34e5038808f5d46243867c10cee6ac20e0 | |
| parent | d0adf747c9caa8b01d0c1f987e306b7c6aaa5a04 (diff) | |
| download | linux-fsl-qoriq-78abfcde49e0e454cabf8e56cd4c1591752e2706.tar.xz | |
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>
| -rw-r--r-- | arch/arm/include/asm/kvm_arm.h | 3 | ||||
| -rw-r--r-- | arch/arm/include/asm/kvm_emulate.h | 5 | ||||
| -rw-r--r-- | arch/arm/kvm/mmio.c | 2 |
3 files changed, 9 insertions, 1 deletions
diff --git a/arch/arm/include/asm/kvm_arm.h b/arch/arm/include/asm/kvm_arm.h index 7c3d813..990764e 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 d548078..2d1c585 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__ */ diff --git a/arch/arm/kvm/mmio.c b/arch/arm/kvm/mmio.c index 586063d..e4682a3 100644 --- a/arch/arm/kvm/mmio.c +++ b/arch/arm/kvm/mmio.c @@ -65,7 +65,7 @@ static int decode_hsr(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa, unsigned long rt, len; bool is_write, sign_extend; - if ((kvm_vcpu_get_hsr(vcpu) >> 8) & 1) { + if (kvm_vcpu_dabt_isextabt(vcpu)) { /* cache operation on I/O addr, tell guest unsupported */ kvm_inject_dabt(vcpu, kvm_vcpu_get_hfar(vcpu)); return 1; |