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

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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: Yan Zhao <yan.y.zhao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20201223034517.17080-1-yan.y.zhao@intel.com
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Yan Zhao 2020-12-23 11:45:17 +08:00 • committed by Zhenyu Wang
parent f18d417a57
commit 73a37a43d1
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/i915/gvt/cmd_parser.c
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@ -993,6 +993,12 @@ static int cmd_reg_handler(struct parser_exec_state *s,
return 0; 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) && if (is_cmd_update_pdps(offset, s) &&
cmd_pdp_mmio_update_handler(s, offset, index)) cmd_pdp_mmio_update_handler(s, offset, index))
return -EINVAL; return -EINVAL;