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iommu/amd: Fix hotplug with iommu=pt

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commit 2c9195e990 upstream.

This did not work because devices are not put into the
pt_domain. Fix this.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
[bwh: Backported to 3.2: do not use iommu_dev_data::passthrough]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
This commit is contained in:
Joerg Roedel
2012-07-19 13:42:54 +02:00
committed by Ben Hutchings
parent bac92b49c7
commit a6624e8b99
1 changed files with 6 additions and 4 deletions
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8
drivers/iommu/amd_iommu.c
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@@ -1865,6 +1865,11 @@ static int device_change_notifier(struct notifier_block *nb,
iommu_init_device(dev);
if (iommu_pass_through) {
attach_device(dev, pt_domain);
break;
}
domain = domain_for_device(dev);
/* allocate a protection domain if a device is added */
@@ -1880,10 +1885,7 @@ static int device_change_notifier(struct notifier_block *nb,
list_add_tail(&dma_domain->list, &iommu_pd_list);
spin_unlock_irqrestore(&iommu_pd_list_lock, flags);
if (!iommu_pass_through)
dev->archdata.dma_ops = &amd_iommu_dma_ops;
else
dev->archdata.dma_ops = &nommu_dma_ops;
break;
case BUS_NOTIFY_DEL_DEVICE: