On 11/11/20 12:43 AM, Ben Widawsky wrote:
+ case CXL_CAPABILITIES_CAP_ID_SECONDARY_MAILBOX: + dev_dbg(&cxlm->pdev->dev, + "found UNSUPPORTED Secondary Mailbox capability\n");
Per spec, the secondary mailbox is intended for use by platform firmware, so Linux should never be using it anyway. Maybe that message is slightly misleading?
Jon.P.S. Related - I've severe doubts about the mailbox approach being proposed by CXL and have begun to push back through the spec org.
-- Computer Architect
