From: Marc Zyngier <marc.zyngier@arm.com>
Date: Fri, 21 Jun 2013 12:08:47 +0000 (+0100)
Subject: ARM: KVM: add missing dsb before invalidating Stage-2 TLBs
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~22^2~7^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=479c5ae2f8a55509b691494cd13691d3dc31d102;p=pandora-kernel.git

ARM: KVM: add missing dsb before invalidating Stage-2 TLBs

When performing a Stage-2 TLB invalidation, it is necessary to
make sure the write to the page tables is observable by all CPUs.

For this purpose, add a dsb instruction to __kvm_tlb_flush_vmid_ipa
before doing the TLB invalidation itself.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
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