[Xen-devel] [PATCH] amd iommu: Fix a xen crash after pci-attach

[Wei Wang2 <wei.wang2@xxxxxxx>]

Keir,
pci-detach triggers IO page table deallocation if the last passthru device has 
been removed from pdev list, and this will result a BUG on amd systems for 
next pci-attach. This patch fixes this issue.
Thanks,
Wei

Signed-off-by: Wei Wang <wei.wang2@xxxxxxx>
--
Advanced Micro Devices GmbH
Sitz: Dornach, Gemeinde Aschheim, 
Landkreis München Registergericht München, 
HRB Nr. 43632
WEEE-Reg-Nr: DE 12919551
Geschäftsführer:
Alberto Bozzo, Andrew Bowd

Attachment: fix_detach.patch
Description: fix_detach.patch

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