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| author |   Joerg Roedel <joerg.roedel@amd.com> | 2012-07-19 13:42:54 +0200 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2012-07-19 13:42:54 +0200 |
| commit | 2c9195e990297068d0f1f1bd8e2f1d09538009da (patch) | |
| tree | 8a02929e11a856fba74b548c4ee8d0f1c9862e07 /drivers/iommu | |
| parent | iommu/amd: Add missing spin_lock initialization (diff) | |
| download | linux-dev-2c9195e990297068d0f1f1bd8e2f1d09538009da.tar.xz linux-dev-2c9195e990297068d0f1f1bd8e2f1d09538009da.zip | |
iommu/amd: Fix hotplug with iommu=pt
This did not work because devices are not put into the
pt_domain. Fix this.
Cc: stable@vger.kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 625626391f2d..3f365ab9f7c7 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -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: |