path: root/drivers
diff options
authorThomas Hellstrom <>2017-08-24 08:06:30 +0200
committerSinclair Yeh <>2017-08-28 17:40:49 +0200
commit5f55be5f306a619e0cdc58104f06a564f5bb30d5 (patch)
tree95164d4946df77af1f16e7e8f2fc41f647e844e2 /drivers
parent65b97a2bec2fc75e9137e8a17954cb66809215bf (diff)
drm/vmwgfx: Support the NOP_ERROR command
Can be used by user-space applications to test and verify the kernel command buffer error recovery functionality. Malicious user-space apps could potentially use this command to slow down graphics processing somewhat, but they could also accomplish the same thing using a random malformed command so this should be considered safe. At least as safe as it gets. Signed-off-by: Thomas Hellstrom <> Reviewed-by: Brian Paul <> Reviewed-by: Sinclair Yeh <>
Diffstat (limited to 'drivers')
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index ba2032e04f06..8c583fd16c79 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -3303,6 +3303,8 @@ static const struct vmw_cmd_entry vmw_cmd_entries[SVGA_3D_CMD_MAX] = {
true, false, true),
VMW_CMD_DEF(SVGA_3D_CMD_NOP, &vmw_cmd_ok,
true, false, true),
+ true, false, true),
VMW_CMD_DEF(SVGA_3D_CMD_ENABLE_GART, &vmw_cmd_invalid,
false, false, true),