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commit259170cb4cupstream. Commitc3b5a8430d("drm/i915/gvt: Enable gfx virtualiztion for CFL") added the support on CFL. The vgpu emulation hotplug support on CFL was supposed to be included in that patch. Without the vgpu emulation hotplug support, the dma-buf based display gives us a blur face. So fix this issue by adding the vgpu emulation hotplug support on CFL. Fixes:c3b5a8430d("drm/i915/gvt: Enable gfx virtualiztion for CFL") Signed-off-by: Tina Zhang <tina.zhang@intel.com> Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20200227010041.32248-1-tina.zhang@intel.com (cherry picked from commit135dde8853) Signed-off-by: Jani Nikula <jani.nikula@intel.com> 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.