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

[Christoffer Dall]

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

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,
-- 
2.1.2.330.g565301e.dirty