推进PLDM：结构化传感器、可扩展建模和服务器主机SoC PLDM规范.pdf

1、Advancing PLDM:Structured Sensors,Scalable Modeling,and the Server Host SoC PLDM SpecificationJustin King,AMDSamer El-Haj-Mahmoud,ArmCopyright 2025 DMTFDisclaimerThe information in this presentation represents a snapshot of work in progress within the DMTF.This information is subject to change witho

2、ut notice.The standard specifications remain the normative reference for all information.For additional information,see the DMTF website.This information is a summary of the information that will appear in the specifications.See the specifications for further details2AgendaPLDM for Host SoCs(CPUs)Sc

3、alable Sensors/EffectersScalable Entity AssociationStructured AttributesPutting it all together the PLDM Host SoC Model3PLDM for Host SoCsMultiple Host SoC(CPU)vendors have converged on PLDM(particularly PLDM Type 2)as their out-of-band management protocol,but are making conflicting modeling decisio

4、nsGoal:Publish a DMTF Informational Document(DSP2070)that provides guidance on how to build a PLDM model for Host SoCsPMCI has published three similar Informational Documents:DSP2054 PLDM NIC ModelingDSP2061 PLDM Accelerator ModelingDSP2067 PDLM CXL Memory Modeling4Scaling ChallengesModern SoCs cont

5、ain numerous instances of replicated components especially CPU coresReplicated components Replicated sensors and effectersExample:SoC with 256 processor coresThermal sensor per core(degrees C)Power sensor per core(milliwatts)512 numeric sensors 512 nearly-identical Numeric Sensor PDRs5PDR Cloning fo

6、r Scalable Sensors/EffectersReduce the number of PDRs by taking an existing PDR as a template and create several clones from that template.Each clone has a new sensor ID or effecter ID,entity Instance,etc but otherwise inherits all other content from the template PDR.Reduce the number of calls to en