mirror of
https://github.com/hardkernel/linux.git
synced 2026-06-06 02:50:49 +09:00
d99be00f42
Make iommu_change_dev_def_domain() general enough to setup the initial default_domain or replace it with a new default_domain. Call the new function iommu_setup_default_domain() and make it the only place in the code that stores to group->default_domain. Consolidate the three copies of the default_domain setup sequence. The flow flow requires: - Determining the domain type to use - Checking if the current default domain is the same type - Allocating a domain - Doing iommu_create_device_direct_mappings() - Attaching it to devices - Store group->default_domain This adjusts the domain allocation from the prior patch to be able to detect if each of the allocation steps is already the domain we already have, which is a more robust version of what change default domain was already doing. Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/14-v5-1b99ae392328+44574-iommu_err_unwind_jgg@nvidia.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.