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authorZhipeng Gong <zhipeng.gong@intel.com>2018-09-17 15:45:08 +0800
committerZhenyu Wang <zhenyuw@linux.intel.com>2018-09-18 10:39:44 +0800
commit7759ca3aac79648d01c9edcb3b00503c02bec2f5 (patch)
treeb9bf0ec28c84f7d14212cc0d645cad75c107c2c6
parenta1ac5f0943019bfd76345fe05a42cbc400da685c (diff)
drm/i915/gvt: clear ggtt entries when destroy vgpu
When one vgpu is destroyed, its ggtt entries are not cleared. This patch clears ggtt entries to avoid information leak. v2: add 'Fixes' tag (Zhenyu) Fixes: 2707e4446688 ("drm/i915/gvt: vGPU graphics memory virtualization") Signed-off-by: Zhipeng Gong <zhipeng.gong@intel.com> Reviewed-by: Hang Yuan <hang.yuan@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
-rw-r--r--drivers/gpu/drm/i915/gvt/vgpu.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index a4e8e3cf74fd..c628be05fbfe 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -281,6 +281,7 @@ void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu)
intel_vgpu_clean_submission(vgpu);
intel_vgpu_clean_display(vgpu);
intel_vgpu_clean_opregion(vgpu);
+ intel_vgpu_reset_ggtt(vgpu, true);
intel_vgpu_clean_gtt(vgpu);
intel_gvt_hypervisor_detach_vgpu(vgpu);
intel_vgpu_free_resource(vgpu);