On 2016.11.09 10:39:05 +0000, Chris Wilson wrote:
> 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.
>
> Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
> Cc: Zhenyu Wang <zhen...@linux.intel.com>
> Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
> ---
> drivers/gpu/drm/i915/i915_gem_stolen.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c
> b/drivers/gpu/drm/i915/i915_gem_stolen.c
> index 154fbb04419f..0f0b37cad63d 100644
> --- a/drivers/gpu/drm/i915/i915_gem_stolen.c
> +++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
> @@ -417,6 +417,11 @@ int i915_gem_init_stolen(struct drm_device *dev)
>
> mutex_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_INFO(dev)->gen < 8) {
> DRM_INFO("DMAR active, disabling use of stolen memory\n");
> --
> 2.10.2
>Reviewed-by: Zhenyu Wang <zhen...@linux.intel.com> -- Open Source Technology Center, Intel ltd. $gpg --keyserver wwwkeys.pgp.net --recv-keys 4D781827
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