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Commit b6809ee5 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

iommu/amd: Detach device from domain before removal 



Detach the device that is about to be removed from its
domain (if it has one) to clear any related state like DTE
entry and device's ATS state.

Reported-by: default avatarKelly Zytaruk <Kelly.Zytaruk@amd.com>
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 358875fd

drivers/iommu/amd_iommu.c

+4 −0
Original line number Diff line number Diff line
@@ -114,6 +114,7 @@ struct kmem_cache *amd_iommu_irq_cache; 


static void update_domain(struct protection_domain *domain);

static int protection_domain_init(struct protection_domain *domain);

static void detach_device(struct device *dev);



/*

 * For dynamic growth the aperture size is split into ranges of 128MB of
@@ -384,6 +385,9 @@ static void iommu_uninit_device(struct device *dev) 
	if (!dev_data)

		return;



	if (dev_data->domain)

		detach_device(dev);



	iommu_device_unlink(amd_iommu_rlookup_table[dev_data->devid]->iommu_dev,

			    dev);