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| author | Matthew Rosato <mjrosato@linux.ibm.com> | 2022-05-19 20:29:29 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-05-20 09:57:09 +0200 |
| commit | fa7e9ecc5e1c1a1e8aa7014b2749b22edc801dd2 (patch) | |
| tree | 92bcb6f7f815e4cc3d75071f14f61a1b8b8e342c /Documentation/devicetree/bindings/iommu | |
| parent | iommu: iommu_group_claim_dma_owner() must always assign a domain (diff) | |
| download | linux-fa7e9ecc5e1c1a1e8aa7014b2749b22edc801dd2.tar.xz linux-fa7e9ecc5e1c1a1e8aa7014b2749b22edc801dd2.zip | |
iommu/s390: Tolerate repeat attach_dev calls
Since commit 0286300e6045 ("iommu: iommu_group_claim_dma_owner() must
always assign a domain") s390-iommu will get called to allocate multiple
unmanaged iommu domains for a vfio-pci device -- however the current
s390-iommu logic tolerates only one. Recognize that multiple domains can
be allocated and handle switching between DMA or different iommu domain
tables during attach_dev.
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20220519182929.581898-1-mjrosato@linux.ibm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'Documentation/devicetree/bindings/iommu')
0 files changed, 0 insertions, 0 deletions