[PATCH 4.2.y-ckt 126/206] kvm: arm64: Fix EC field in inject_abt64

From: Kamal Mostafa
Date: Thu Jun 09 2016 - 17:42:52 EST


4.2.8-ckt12 -stable review patch. If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Matt Evans <matt.evans@xxxxxxx>

commit e4fe9e7dc3828bf6a5714eb3c55aef6260d823a2 upstream.

The EC field of the constructed ESR is conditionally modified by ORing in
ESR_ELx_EC_DABT_LOW for a data abort. However, ESR_ELx_EC_SHIFT is missing
from this condition.

Signed-off-by: Matt Evans <matt.evans@xxxxxxx>
Acked-by: Marc Zyngier <marc.zyngier@xxxxxxx>
Signed-off-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
arch/arm64/kvm/inject_fault.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c
index 648112e..3972e65 100644
--- a/arch/arm64/kvm/inject_fault.c
+++ b/arch/arm64/kvm/inject_fault.c
@@ -130,7 +130,7 @@ static void inject_abt64(struct kvm_vcpu *vcpu, bool is_iabt, unsigned long addr
esr |= (ESR_ELx_EC_IABT_CUR << ESR_ELx_EC_SHIFT);

if (!is_iabt)
- esr |= ESR_ELx_EC_DABT_LOW;
+ esr |= ESR_ELx_EC_DABT_LOW << ESR_ELx_EC_SHIFT;

vcpu_sys_reg(vcpu, ESR_EL1) = esr | ESR_ELx_FSC_EXTABT;
}
--
2.7.4