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[Xen-devel] [PATCH] amd iommu: Fix a xen crash after pci-attach
| To: | Keir Fraser <keir@xxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH] amd iommu: Fix a xen crash after pci-attach |
| From: | Wei Wang2 <wei.wang2@xxxxxxx> |
| Date: | Tue, 1 Feb 2011 17:27:16 +0100 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Tue, 01 Feb 2011 08:30:23 -0800 |
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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
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