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intel-iommu: Fix reattaching of devices to identity mapping domain
When we reattach a device to the si_domain (because it's been removed from a VM), we weren't calling domain_context_mapping() to actually tell the hardware about that. We should really put the call to domain_context_mapping() into domain_add_dev_info() -- we never call the latter without also doing the former, and we can keep the error paths simple that way. But that's a cleanup which can wait for 2.6.32 now. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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@ -2475,6 +2475,9 @@ static int iommu_no_mapping(struct pci_dev *pdev)
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if (pdev->dma_mask > DMA_BIT_MASK(32)) {
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int ret;
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ret = domain_add_dev_info(si_domain, pdev);
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if (ret)
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return 0;
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ret = domain_context_mapping(si_domain, pdev, CONTEXT_TT_MULTI_LEVEL);
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if (!ret) {
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printk(KERN_INFO "64bit %s uses identity mapping\n",
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pci_name(pdev));
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