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| author | Matthew Rosato <mjrosato@linux.ibm.com> | 2025-02-12 16:34:18 -0500 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2025-02-21 12:02:00 +0100 |
| commit | 64af12c6ec3afd7d44bc8b2044eee59f98059087 (patch) | |
| tree | ab9c7378b9570253f8b3c7ace999248d8584d439 /net/lapb/lapb_timer.c | |
| parent | 0ed5967a0a63552e5ca0f2382ce362f84e83801c (diff) | |
iommu/s390: implement iommu passthrough via identity domain
Enabled via the kernel command-line 'iommu.passthrough=1' option.
Introduce the concept of identity domains to s390-iommu, which relies on
the bus_dma_region to offset identity mappings to the start of the DMA
aperture advertized by CLP.
Tested-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20250212213418.182902-5-mjrosato@linux.ibm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions