diff mbox

[GIT,PULL,1/2] arm64: KVM: Fix TLB invalidation by IPA/VMID

Message ID 1420981811-18731-2-git-send-email-christoffer.dall@linaro.org
State Accepted
Commit 55e858b75808347378e5117c3c2339f46cc03575
Headers show

Commit Message

Christoffer Dall Jan. 11, 2015, 1:10 p.m. UTC 
From: Marc Zyngier <marc.zyngier@arm.com>

It took about two years for someone to notice that the IPA passed
to TLBI IPAS2E1IS must be shifted by 12 bits. Clearly our reviewing
is not as good as it should be...

Paper bag time for me.

Reported-by: Mario Smarduch <m.smarduch@samsung.com>
Tested-by: Mario Smarduch <m.smarduch@samsung.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm64/kvm/hyp.S | 1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S
index fbe909f..c3ca89c 100644
--- a/arch/arm64/kvm/hyp.S
+++ b/arch/arm64/kvm/hyp.S
@@ -1014,6 +1014,7 @@  ENTRY(__kvm_tlb_flush_vmid_ipa)
 	 * Instead, we invalidate Stage-2 for this IPA, and the
 	 * whole of Stage-1. Weep...
 	 */
+	lsr	x1, x1, #12
 	tlbi	ipas2e1is, x1
 	/*
 	 * We have to ensure completion of the invalidation at Stage-2,