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: 2707e44 ("drm/i915/gvt: vGPU graphics memory virtualization") Signed-off-by: Zhipeng Gong <[email protected]> Reviewed-by: Hang Yuan <[email protected]> Signed-off-by: Zhenyu Wang <[email protected]>
zarubaf · Sep 18, 2018 · 7759ca3 · 7759ca3
1 parent a1ac5f0
commit 7759ca3
Showing 1 changed file with 1 addition and 0 deletions.
diff --git 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);