Commit 73a37a43 authored by Yan Zhao's avatar Yan Zhao Committed by Zhenyu Wang
Browse files

drm/i915/gvt: filter cmds "lrr-src" and "lrr-dst" in cmd_handler 



do not allow "lrr-src" and "lrr-dst"

Cc: Colin Xu <colin.xu@intel.com>
Cc: Kevin Tian <kevin.tian@intel.com>

Signed-off-by: default avatarYan Zhao <yan.y.zhao@intel.com>
Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20201223034517.17080-1-yan.y.zhao@intel.com


Reviewed-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
parent f18d417a

drivers/gpu/drm/i915/gvt/cmd_parser.c

+6 −0
Original line number Diff line number Diff line
@@ -993,6 +993,12 @@ static int cmd_reg_handler(struct parser_exec_state *s, 
			return 0;

	}



	if (!strncmp(cmd, "lrr-src", 7) ||

			!strncmp(cmd, "lrr-dst", 7)) {

		gvt_vgpu_err("not allowed cmd %s\n", cmd);

		return -EPERM;

	}



	if (is_cmd_update_pdps(offset, s) &&

	    cmd_pdp_mmio_update_handler(s, offset, index))

		return -EINVAL;