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)
committerChris Wilson <chris@chris-wilson.co.uk>
Tue, 14 Feb 2017 09:28:34 +0000 (09:28 +0000)
commit04a68a35ce6d7b54749989f943993020f48fed62
treeeccf8196dbc93dbce4748d251ba260d6f3e21e7c
parent496b575e3ccbf6fbe57a674c721af43dc8826361
drm/i915/gvt: Disable access to stolen memory as a guest

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>
Cc: stable@vger.kernel.org
drivers/gpu/drm/i915/i915_gem_stolen.c