@Kinney, Michael D<mailto:[email protected]> and @gaoliming<mailto:[email protected]>
We want to add TraceHubDebug library support on Edk2. It's new added library on Edk2, so it doesn't have any backward and forward issue. May I know have any process we may need to follow up. Have any comment or concern please also share for me. Reviewers/Maintainers: @Prakashan, Krishnadas Veliyathuparambil<mailto:[email protected]>, @Chan, Laura<mailto:[email protected]>, @K N, Karthik<mailto:[email protected]>. USF UPL spec update: https://github.com/UniversalScalableFirmware/documentation/pull/52 (Done) Edk2 Bugzilla: https://bugzilla.tianocore.org/show_bug.cgi?id=4144 (On-Going) Edk2 PR: https://github.com/tianocore/edk2/pull/3613 (On-Going) Background: * Problem: In the UPL (Universal Payload) binary which contains only the Edk2 drivers, Tracehub debug message are missing during the execution of early DXE Core modules (before ReportStatusCode is ready). * Solution: Add TraceHub lib on Edk2, to be consumed by the UPL. About TraceHubDebugLibSysT: * Library is consumed by the DebugLib and StatusCodeHandler to send the PostCodes, ProgressCodes and DEBUG messages to the TraceHub/NPK in MIPI SyS-T format. * The MIPI SyS-T APIs in this library are taken from the OpenSource implementation: https://github.com/MIPI-Alliance/public-mipi-sys-t. * Library changes done for upstreaming: MipiSystLib is rewritten to comply EDK2 coding standards and changed ways to pass trace address/verbosity with HOB directly instead of calling into TraceHubHookLib to get these info. * Proposal With UPL: consume HOB gUniversalPayloadTraceHubDebugInfoGuid to print TraceHub Debug message in DXE Core Thanks, Gua -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#96588): https://edk2.groups.io/g/devel/message/96588 Mute This Topic: https://groups.io/mt/95213711/21656 Group Owner: [email protected] Unsubscribe: https://edk2.groups.io/g/devel/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
