mainlining shenanigans
9ca8261173
The current code uses set_irte_sid() with SVT_VERIFY_BUS and PCI_DEVID to set the SID value. However, this is very confusing because, with SVT_VERIFY_BUS, the SID value is not a PCI devfn address, but the start and end bus numbers to match against. According to the Intel Virtualization Technology for Directed I/O Architecture Specification, Rev. 3.0, page 9-36: The most significant 8-bits of the SID field contains the Startbus#, and the least significant 8-bits of the SID field contains the Endbus#. Interrupt requests that reference this IRTE must have a requester-id whose bus# (most significant 8-bits of requester-id) has a value equal to or within the Startbus# to Endbus# range. So to make this more clear, introduce a new set_irte_verify_bus() that explicitly takes a start bus and end bus so that we can stop abusing the PCI_DEVID macro. This helper function will be called a second time in an subsequent patch. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Joerg Roedel <joro@8bytes.org> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| 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 Restructured Text 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.