From 765ff7ad584aef2f0aaadb153b0c496bd4e170f7 Mon Sep 17 00:00:00 2001 From: Qingqing Zhuo Date: Fri, 22 Jan 2021 19:16:25 -0500 Subject: [PATCH] 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: Qingqing Zhuo Reviewed-by: Bhawanpreet Lakha Acked-by: Anson Jacob Signed-off-by: Alex Deucher --- 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 b26ed64..904ce9b 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); -- 2.7.4