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| author | Joerg Roedel <jroedel@suse.de> | 2016-02-26 16:48:59 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2016-02-29 17:25:25 +0100 |
| commit | b6809ee573cc2f8de97f7c8f45eacc5db1129060 (patch) | |
| tree | fdb0a59a281ce0b2e92409f9ab19db578d8dfdf4 | |
| parent | 358875fd52ab8f00f66328cbf1a1d2486f265829 (diff) | |
| download | kvm-b6809ee573cc2f8de97f7c8f45eacc5db1129060.tar.gz | |
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: Kelly Zytaruk <Kelly.Zytaruk@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index e5e223938eecc9..374c129219ef0c 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -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); |