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Linux kernel source tree
71db84a092
Add IOPT_ADDRESS_DMABUF to the iopt_pages and the basic infrastructure to create an iopt_pages from a struct dma_buf *. DMABUF pages are not supported for accesses, and for now can only be used with the VFIO DMABUF exporter. The overall flow will be similar to memfd where the user can pass in a DMABUF file descriptor to IOMMU_IOAS_MAP_FILE and create an area and pages. Like other areas it can be copied and otherwise manipulated, though there is little point in doing so. There is no pinned page accounting done for DMABUF maps. The DMABUF attachment exists so long as the dmabuf is mapped into an IOAS, even if the IOAS is not mapped to any domains. Link: https://patch.msgid.link/r/2-v2-b2c110338e3f+5c2-iommufd_dmabuf_jgg@nvidia.com Reviewed-by: Nicolin Chen <nicolinc@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Tested-by: Nicolin Chen <nicolinc@nvidia.com> Tested-by: Shuai Xue <xueshuai@linux.alibaba.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .pylintrc | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.