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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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Joerg Roedel
2012-07-19 13:42:54 +02:00
committed by Greg Kroah-Hartman
parent a29c227ce9
commit 06fac439bb
1 changed files with 13 additions and 4 deletions
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17
drivers/iommu/amd_iommu.c
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@@ -2254,6 +2254,18 @@ static int device_change_notifier(struct notifier_block *nb,
iommu_init_device(dev);
/*
* dev_data is still NULL and
* got initialized in iommu_init_device
*/
dev_data = get_dev_data(dev);
if (iommu_pass_through || dev_data->iommu_v2) {
dev_data->passthrough = true;
attach_device(dev, pt_domain);
break;
}
domain = domain_for_device(dev);
/* allocate a protection domain if a device is added */
@@ -2271,10 +2283,7 @@ static int device_change_notifier(struct notifier_block *nb,
dev_data = get_dev_data(dev);
if (!dev_data->passthrough)
dev->archdata.dma_ops = &amd_iommu_dma_ops;
else
dev->archdata.dma_ops = &nommu_dma_ops;
dev->archdata.dma_ops = &amd_iommu_dma_ops;
break;
case BUS_NOTIFY_DEL_DEVICE: