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| author | Jason Gunthorpe <jgg@nvidia.com> | 2022-11-29 23:29:34 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-12-01 03:16:49 +0300 |
| commit | aad37e71d5c4dc1d3c25734f0bcd51c324f94b5e (patch) | |
| tree | c835636d8c2f03f720aaa0549dd97bc46fed8060 /drivers/iommu/iommufd/Makefile | |
| parent | 51fe6141f0f64ae0bbc096a41a07572273e8c0ef (diff) | |
| download | linux-aad37e71d5c4dc1d3c25734f0bcd51c324f94b5e.tar.xz | |
iommufd: IOCTLs for the io_pagetable
Connect the IOAS to its IOCTL interface. This exposes most of the
functionality in the io_pagetable to userspace.
This is intended to be the core of the generic interface that IOMMUFD will
provide. Every IOMMU driver should be able to implement an iommu_domain
that is compatible with this generic mechanism.
It is also designed to be easy to use for simple non virtual machine
monitor users, like DPDK:
- Universal simple support for all IOMMUs (no PPC special path)
- An IOVA allocator that considers the aperture and the allowed/reserved
ranges
- io_pagetable allows any number of iommu_domains to be connected to the
IOAS
- Automatic allocation and re-use of iommu_domains
Along with room in the design to add non-generic features to cater to
specific HW functionality.
Link: https://lore.kernel.org/r/11-v6-a196d26f289e+11787-iommufd_jgg@nvidia.com
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Yi Liu <yi.l.liu@intel.com>
Tested-by: Lixiao Yang <lixiao.yang@intel.com>
Tested-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/iommu/iommufd/Makefile')
| -rw-r--r-- | drivers/iommu/iommufd/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iommu/iommufd/Makefile b/drivers/iommu/iommufd/Makefile index b66a8c47ff55..2b4f36f1b72f 100644 --- a/drivers/iommu/iommufd/Makefile +++ b/drivers/iommu/iommufd/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0-only iommufd-y := \ io_pagetable.o \ + ioas.o \ main.o \ pages.o |