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authorJoerg Roedel <joerg.roedel@amd.com>2012-07-19 13:42:54 +0200
committerBen Hutchings <ben@decadent.org.uk>2012-08-02 14:37:52 +0100
commita6624e8b990f77bd4ee64f77c2b95c7df005f002 (patch)
treec3148a272a172cb19791b4dfb2c48bc3eac08246 /drivers/iommu
parentbac92b49c77bd2cb455770a8f1c567817907428b (diff)
iommu/amd: Fix hotplug with iommu=pt
commit 2c9195e990297068d0f1f1bd8e2f1d09538009da 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>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/amd_iommu.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index a1b8caa33add..0f074e0fdd06 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -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;
+ dev->archdata.dma_ops = &amd_iommu_dma_ops;
break;
case BUS_NOTIFY_DEL_DEVICE: