From: Alex Williamson <alex.williamson@redhat.com>
Date: Thu, 24 Jan 2013 22:04:03 +0000 (-0700)
Subject: kvm: Force IOMMU remapping on memory slot read-only flag changes
X-Git-Tag: v3.9-rc1~97^2~7^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=261874b0d5ebe2a5ccc544df7170d6559635e79a;p=pandora-kernel.git

kvm: Force IOMMU remapping on memory slot read-only flag changes

Memory slot flags can be altered without changing other parameters of
the slot.  The read-only attribute is the only one the IOMMU cares
about, so generate an un-map, re-map when this occurs.  This also
avoid unnecessarily re-mapping the slot when no IOMMU visible changes
are made.

Reviewed-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---

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