Re: [PATCH 2/4] Intel iommu: Speed up processing of the identity_mapping function

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Chris Wright wrote:
* Mike Travis (travis@xxxxxxx) wrote:
@@ -2138,6 +2134,7 @@ static int domain_add_dev_info(struct dm
 	list_add(&info->global, &device_domain_list);
 	pdev->dev.archdata.iommu = info;

The si_domain is cached right here...can you not use this instead of
adding an iommu impl. specific bit to pci_dev?

 	spin_unlock_irqrestore(&device_domain_lock, flags);
+	pdev->is_identity_mapped = (domain == si_domain);

Yes, it looks like I came at the solution backwards... I added
the bit then figured out how to set it.  I'll update that patch.
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