Commit 2c9195e9 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

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: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent 2c13d47a

drivers/iommu/amd_iommu.c

+13 −4
Original line number Diff line number Diff line
@@ -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;



		break;

	case BUS_NOTIFY_DEL_DEVICE: