From: Qingqing Zhuo <qingqing.z...@amd.com>
[Why]
Current implementation of mod_hdcp_hdcp2_validate_ake_cert()
does not process HDCP status message
TA_HDCP2_MSG_AUTHENTICATION_STATUS__SIGNATURE_CERTIFICAT_ERROR.
As a result, when there is a signature certificate error,
mod_hdcp_hdcp2_validate_ake_cert would return the default status,
which is success.
[How]
For all messages other than TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS
and TA_HDCP2_MSG_AUTHENTICATION_STATUS__RECEIVERID_REVOKED, return status
as failure.
Signed-off-by: Qingqing Zhuo <qingqing.z...@amd.com>
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.la...@amd.com>
Acked-by: Anson Jacob <anson.ja...@amd.com>
---
drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c
b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c
index b26ed64eaf98..904ce9b88088 100644
--- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c
+++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c
@@ -548,6 +548,8 @@ enum mod_hdcp_status
mod_hdcp_hdcp2_validate_ake_cert(struct mod_hdcp *hdcp)
TA_HDCP2_MSG_AUTHENTICATION_STATUS__RECEIVERID_REVOKED) {
hdcp->connection.is_hdcp2_revoked = 1;
status = MOD_HDCP_STATUS_HDCP2_AKE_CERT_REVOKED;
+ } else {
+ status =
MOD_HDCP_STATUS_HDCP2_VALIDATE_AKE_CERT_FAILURE;
}
}
mutex_unlock(&psp->hdcp_context.mutex);
--
2.25.1
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