drm/i915/gvt: Disable access to stolen memory as a guest
authorChris Wilson <chris@chris-wilson.co.uk>
Wed, 9 Nov 2016 10:39:05 +0000 (10:39 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 25 May 2017 13:44:49 +0000 (15:44 +0200)
commit5a597b225d48023bb10e38ea64adb277fc559247
tree38dbb83ee95148be1204abdfecb90c87300c171b
parent1489183c2005676b2231fec00aced800093008ed
drm/i915/gvt: Disable access to stolen memory as a guest

commit 04a68a35ce6d7b54749989f943993020f48fed62 upstream.

Explicitly disable stolen memory when running as a guest in a virtual
machine, since the memory is not mediated between clients and reserved
entirely for the host. The actual size should be reported as zero, but
like every other quirk we want to tell the user what is happening.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99028
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161109103905.17860-1-chris@chris-wilson.co.uk
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/gpu/drm/i915/i915_gem_stolen.c