Xen devel - Mar 2009 - [PATCH] Inclusing memory mapping param for dom0 iommu mappings

OK, cut two of the iommu reserved memory issue patch as we discussed...

This patch adds a boolean boot parameter to xen to allow inclusive
mapping of all memory below 4GB to the iommu mappings for dom0. The
unusable ranges and memory occupied by xen are still excluded. The
parameter is "iommu_inclusive_mapping=1" and is off by default. In
addition to the parameter, a warning is also traced when incorrect
RMRR to system memory map values are detected. These are being added
to address some incorrect BIOS''s that do not report correctly the
requied reserved memory ranges in the RMRRs. When this occurs it
currently can cause early boot hangs and crashes.

Signed-off-by: Ross Philipson
<ross.philipson@citrix.com<mailto:ross.philipson@citrix.com>>

Based on changeset 19243

Thanks
Ross


Ross Philipson
Senior Software Engineer
Citrix Systems, Inc
14 Crosby Drive
Bedford, MA 01730
781-301-7949
ross.philipson@citrix.com<mailto:ross.philipson@citrix.com>




_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel