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[Xen-devel] [PATCH] [VTD] Move dom0 RMRR check to intel_iommu_remove_dev
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| Subject: | [Xen-devel] [PATCH] [VTD] Move dom0 RMRR check to intel_iommu_remove_device() |
| From: | "Han, Weidong" <weidong.han@xxxxxxxxx> |
| Date: | Wed, 30 Jul 2008 14:09:51 +0800 |
| Delivery-date: | Tue, 29 Jul 2008 23:10:16 -0700 |
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| Thread-index: | AcjyCt7xkg9Gj3k2RNS8reUitegyeA== |
| Thread-topic: | [Xen-devel] [PATCH] [VTD] Move dom0 RMRR check to intel_iommu_remove_device() |
If put dom0 RMRR check in domain_context_unmap_one(), the devices with RMRR cannot be assigned to other domain, becuase domain_context_unmap_one() won't unmap context for them, and dom0 always owns them. This patch moves the check to intel_iommu_remove_device() which is only called by dom0 hypercall. This not olny guarantees keeping RMRR mappings for dom0 during its booting, but also won't impact device assignment. Signed-off-by: Weidong Han <weidong.han@xxxxxxxxx>
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