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Patch "kvm: arm64: Fix EC field in inject_abt64" has been added to the 4.6-stable tree

PATCH [email protected] 1 participant 1 message May 29, 2016

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This is a note to let you know that I've just added the patch titled

kvm: arm64: Fix EC field in inject_abt64

to the 4.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:

     kvm-arm64-fix-ec-field-in-inject_abt64.patch

and it can be found in the queue-4.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From e4fe9e7dc3828bf6a5714eb3c55aef6260d823a2 Mon Sep 17 00:00:00 2001

From: Matt Evans <[email protected]>
Date: Mon, 16 May 2016 13:54:56 +0100
Subject: kvm: arm64: Fix EC field in inject_abt64

From: Matt Evans <[email protected]>

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.

---
 arch/arm64/kvm/inject_fault.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
arch/arm64/kvm/inject_fault.c +1 -1
@@ -162,7 +162,7 @@ static void inject_abt64(struct kvm_vcpu
 		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;
 }

Patches currently in stable-queue which might be from [email protected] are

queue-4.6/kvm-arm64-fix-ec-field-in-inject_abt64.patch