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xen-devel
[Xen-devel] [PATCH] AMD IOMMU: (2nd try) Handle sibling device assignmen
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@xxxxxxx>
--
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
device_assignment.patch
Description: Text Data
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