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(parent: 16c53e0) | patch
KVM: PPC: Don't flush PTEs on NX/RO hit
authorAlexander Graf <agraf@suse.de>
Mon, 2 Aug 2010 18:11:39 +0000 (20:11 +0200)
committerAvi Kivity <avi@redhat.com>
Sun, 24 Oct 2010 08:52:06 +0000 (10:52 +0200)
commit65f69969a1b9533219710e37d93426c9c38ddf96
treee93c763d86987b7aa10f87f6582eacbdee9fa792tree | snapshot
parent16c53e0638d5ed9af6290b2b9a6f75b868094090commit | diff
KVM: PPC: Don't flush PTEs on NX/RO hit

When hitting a no-execute or read-only data/inst storage interrupt we were
flushing the respective PTE so we're sure it gets properly overwritten next.

According to the spec, this is unnecessary though. The guest issues a tlbie
anyways, so we're safe to just keep the PTE around and have it manually removed
from the guest, saving us a flush.

Signed-off-by: Alexander Graf <agraf@suse.de>
arch/powerpc/kvm/book3s.c diff | blob | history
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