From: Izik Eidus <izike@qumranet.com>
Date: Thu, 20 Mar 2008 16:17:24 +0000 (+0200)
Subject: KVM: MMU: fix dirty bit setting when removing write permissions
X-Git-Tag: v2.6.26-rc1~1028^2~77
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=855149aaa90016c576a0e684361a34f8047307d0;p=pandora-kernel.git

KVM: MMU: fix dirty bit setting when removing write permissions

When mmu_set_spte() checks if a page related to spte should be release as
dirty or clean, it check if the shadow pte was writeble, but in case
rmap_write_protect() is called called it is possible for shadow ptes that were
writeble to become readonly and therefor mmu_set_spte will release the pages
as clean.

This patch fix this issue by marking the page as dirty inside
rmap_write_protect().

Signed-off-by: Izik Eidus <izike@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---

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