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Pass the phys_addr_t down through the call chain from the top instead of passing a pgd_t * KVA. This moves the __pa() into domain_setup_first_level() which is the first function to obtain the pgd from the IOMMU page table in this call chain. The SVA flow is also adjusted to get the pa of the mm->pgd. iommput will move the __pa() into iommupt code, it never shares the KVA of the page table with the driver. Reviewed-by: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/1-v3-dbbe6f7e7ae3+124ffe-vtd_prep_jgg@nvidia.com Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20250714045028.958850-4-baolu.lu@linux.intel.com Signed-off-by: Will Deacon <will@kernel.org>
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.