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commit1548978070upstream. Check 5-level paging capability for 57 bits address width instead of checking 1GB large page capability. Fixes:53fc7ad6ed("iommu/vt-d: Correctly calculate sagaw value of IOMMU") Cc: stable@vger.kernel.org Reported-by: Raghunathan Srinivasan <raghunathan.srinivasan@intel.com> Signed-off-by: Yi Liu <yi.l.liu@intel.com> Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Raghunathan Srinivasan <raghunathan.srinivasan@intel.com> Link: https://lore.kernel.org/r/20220916071212.2223869-2-yi.l.liu@intel.com Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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 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.