Commit 765ff7ad authored by Qingqing Zhuo's avatar Qingqing Zhuo Committed by Alex Deucher
Browse files

drm/amd/display: DP HDCP Compliance 1A-08/09 tests fail 



[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: default avatarQingqing Zhuo <qingqing.zhuo@amd.com>
Reviewed-by: default avatarBhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Acked-by: default avatarAnson Jacob <Anson.Jacob@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 166590cc

drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c

+2 −0
Original line number Diff line number Diff line
@@ -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);