Patch "drm/i915/gvt: Disable access to stolen memory as a guest" has been added to the 4.10-stable tree
Subsystems (3)
This is a note to let you know that I've just added the patch titled
drm/i915/gvt: Disable access to stolen memory as a guest
to the 4.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-i915-gvt-disable-access-to-stolen-memory-as-a-guest.patch
and it can be found in the queue-4.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From
ddd09373628adcbdc3f7b9098d22328834f8d772Mon Sep 17 00:00:00 2001
From: Chris Wilson <[email protected]>
Date: Wed, 9 Nov 2016 10:39:05 +0000
Subject: drm/i915/gvt: Disable access to stolen memory as a guest
From: Chris Wilson <[email protected]>
commit ddd09373628adcbdc3f7b9098d22328834f8d772 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
--- drivers/gpu/drm/i915/i915_gem_stolen.c | 5 +++++ 1 file changed, 5 insertions(+)
drivers/gpu/drm/i915/i915_gem_stolen.c +5 -0
@@ -414,6 +414,11 @@ int i915_gem_init_stolen(struct drm_i915mutex_init (&dev_priv->mm.stolen_lock); +if (intel_vgpu_active (dev_priv)) { +DRM_INFO ("iGVT-g active, disabling use of stolen memory\n" ); +return 0 ; + } +#ifdef CONFIG_INTEL_IOMMU if (intel_iommu_gfx_mapped &&INTEL_GEN (dev_priv) <8 ) {DRM_INFO ("DMAR active, disabling use of stolen memory\n" );
Patches currently in stable-queue which might be from [email protected] are
queue-4.10/drm-cancel-drm_fb_helper_dirty_work-on-unload.patch queue-4.10/drm-i915-gvt-disable-access-to-stolen-memory-as-a-guest.patch queue-4.10/drm-cancel-drm_fb_helper_resume_work-on-unload.patch