Wei Wang2
2008-May-07 12:00 UTC
[Xen-devel] [PATCH] AMD IOMMU: (2nd try) Handle sibling device assignment correctly
Updated version, please comment! Thanks, Wei Devices on AMD IOMMU system share a same set of IO page tables if they are indexed by a same device ID in device table. To prevent these sibling devices from being assigned to different domains, a successful device assignment requires all sibling devices are owned by either pciback or the target domain. This is a trial patch with minor modifications in the common interface to handle this situation correctly. VTD code has also been slightly touched please let me know if it breaks any VTD functionality. Thanks! Signed-off-by: Wei Wang <wei.wang2@amd.com> -- AMD Saxony, Dresden, Germany Operating System Research Center Legal Information: AMD Saxony Limited Liability Company & Co. KG Sitz (Geschäftsanschrift): Wilschdorfer Landstr. 101, 01109 Dresden, Deutschland Registergericht Dresden: HRA 4896 vertretungsberechtigter Komplementär: AMD Saxony LLC (Sitz Wilmington, Delaware, USA) Geschäftsführer der AMD Saxony LLC: Dr. Hans-R. Deppe, Thomas McCoy _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel