This is a note to let you know that I've just added the patch titled
arm64: KVM: Fix TLB invalidation by IPA/VMID
to the 3.14-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:
arm64-kvm-fix-tlb-invalidation-by-ipa-vmid.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 55e858b75808347378e5117c3c2339f46cc03575 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <[email protected]>
Date: Sun, 11 Jan 2015 14:10:10 +0100
Subject: arm64: KVM: Fix TLB invalidation by IPA/VMID
From: Marc Zyngier <[email protected]>
commit 55e858b75808347378e5117c3c2339f46cc03575 upstream.
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 <[email protected]>
Tested-by: Mario Smarduch <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Signed-off-by: Christoffer Dall <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Signed-off-by: Shannon Zhao <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/arm64/kvm/hyp.S | 1 +
1 file changed, 1 insertion(+)
--- a/arch/arm64/kvm/hyp.S
+++ b/arch/arm64/kvm/hyp.S
@@ -629,6 +629,7 @@ 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,
Patches currently in stable-queue which might be from [email protected] are
queue-3.14/arm64-kvm-fix-hcr-setting-for-32bit-guests.patch
queue-3.14/arm64-kvm-do-not-use-pgd_index-to-index-stage-2-pgd.patch
queue-3.14/arm64-kvm-fix-tlb-invalidation-by-ipa-vmid.patch
queue-3.14/arm-arm64-kvm-keep-elrsr-aisr-in-sync-with-software-model.patch
queue-3.14/arm-arm64-kvm-require-in-kernel-vgic-for-the-arch-timers.patch
queue-3.14/arm-kvm-force-execution-of-hcptr-access-on-vm-exit.patch
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