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| author |   Joerg Roedel <jroedel@suse.de> | 2020-06-04 11:19:44 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-06-04 11:38:17 +0200 |
| commit | 431275afdc7155415254aef4bd3816a1b8a2ead0 (patch) | |
| tree | ed95d55eba1858908b7a86b84daf425e5a91d802 /include/linux/iommu.h | |
| parent | Merge branches 'arm/msm', 'arm/allwinner', 'arm/smmu', 'x86/vt-d', 'hyper-v', 'core' and 'x86/amd' into next (diff) | |
| download | wireguard-linux-431275afdc7155415254aef4bd3816a1b8a2ead0.tar.xz wireguard-linux-431275afdc7155415254aef4bd3816a1b8a2ead0.zip | |
iommu: Check for deferred attach in iommu_group_do_dma_attach()
The iommu_group_do_dma_attach() must not attach devices which have
deferred_attach set. Otherwise devices could cause IOMMU faults when
re-initialized in a kdump kernel.
Fixes: deac0b3bed26 ("iommu: Split off default domain allocation from group assignment")
Reported-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Link: https://lore.kernel.org/r/20200604091944.26402-1-joro@8bytes.org
Diffstat (limited to 'include/linux/iommu.h')
0 files changed, 0 insertions, 0 deletions