Linus Torvalds bd37cdf8ba Merge tag 'iommu-fixes-v5.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
 "A couple of Intel VT-d fixes:

   - Make Intel SVM code 64bit only. The code uses pgd_t* and the IOMMU
     only supports long-mode page-table formats, so its broken on 32bit
     anyway.

   - Make sure GFX quirks in for Intel VT-d are not applied to untrusted
     devices. Those devices might gain full memory access otherwise.

   - Identity mapping setup fix.

   - Fix ACS enabling when Intel IOMMU is off and untrusted devices are
     detected.

   - Two smaller fixes for coherency and IO page-table setup"

* tag 'iommu-fixes-v5.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/vt-d: Fix misuse of iommu_domain_identity_map()
  iommu/vt-d: Update scalable mode paging structure coherency
  iommu/vt-d: Enable PCI ACS for platform opt in hint
  iommu/vt-d: Don't apply gfx quirks to untrusted devices
  iommu/vt-d: Set U/S bit in first level page table by default
  iommu/vt-d: Make Intel SVM code 64-bit only
2020-06-26 12:30:07 -07:00
2020-06-21 15:45:29 -07:00

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.
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