37f900e718
The domain_flush_pasid_iotlb() helper function is used to flush the IOTLB entries for a given PASID. Previously, this function assumed that RID2PASID was only used for the first-level DMA translation. However, with the introduction of the set_dev_pasid callback, this assumption is no longer valid. Add a check before using the RID2PASID for PASID invalidation. This check ensures that the domain has been attached to a physical device before using RID2PASID. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Link: https://lore.kernel.org/r/20230802212427.1497170-7-jacob.jun.pan@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
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.