aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--drivers/gpu/drm/i915/gvt/cmd_parser.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index a598329a3354..7ee101644e75 100644
--- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
+++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -982,6 +982,17 @@ static int cmd_reg_handler(struct parser_exec_state *s,
patch_value(s, cmd_ptr(s, index), VGT_PVINFO_PAGE);
}
+ if (!strncmp(cmd, "srm", 3) ||
+ !strncmp(cmd, "lrm", 3)) {
+ if (offset != i915_mmio_reg_offset(GEN8_L3SQCREG4) &&
+ offset != 0x21f0) {
+ gvt_vgpu_err("%s access to register (%x)\n",
+ cmd, offset);
+ return -EPERM;
+ } else
+ return 0;
+ }
+
if (is_cmd_update_pdps(offset, s) &&
cmd_pdp_mmio_update_handler(s, offset, index))
return -EINVAL;