Intel E5-2600 CPU Thermal and Power Optimization Capabilities, Cpuid, CSR did, CSR Mcaerrsrclog

2.5.2.6.11CPU Thermal and Power Optimization Capabilities

Table 2-8provides a summary of the processor power and thermal optimization capabilities that can be accessed over PECI.

Note: The Index values referenced in Table 2-8are in decimal format.

Table 2-8also provides information on alternate inband mechanisms to access similar or equivalent information for register reads and writes where applicable. The user should consult the appropriate Intel® 64 and IA-32 Architectures Software Developer’s Manual (SDM) Volumes 1, 2, and 3 or Intel® Xeon® Processor E5 Product Family Datasheet Volume Two for exact details on MSR or CSR register content.

Table 2-8. RdPkgConfig() & WrPkgConfig() CPU Thermal and Power Optimization Services Summary (Sheet 1 of 3)

	Index	Parameter	RdPkgConfig()	WrPkgConfig()		Alternate Inband
Service	Value	Value	Data (dword)		Description
				Data (dword)		MSR or CSR Access
	(decimal)	(word)
					Returns processor-
			CPUID		specific information	Execute CPUID instruction to get
		0x0000			including CPU family,
			Information		model and stepping	processor signature
					information.
					Used to ensure
		0x0001	Platform ID		microcode update	MSR 17h: IA32_PLATFORM_ID
					compatibility with
					processor.
					Returns the Device
Package		0x0002	PCU Device ID		ID information for	CSR: DID
	00				the processor Power
Identifier Read					Control Unit.
					Returns the	MSR: RESOLVED_CORES_MASK
		0x0003	Max Thread ID		maximum ‘Thread
					ID’ value supported	CSR: RESOLVED_CORES_MASK
					by the processor.
					Returns processor
		0x0004	CPU Microcode		microcode and PCU	MSR 8Bh: IA32_BIOS_SIGN_ID
			Update Revision		firmware revision
					information.
		0x0005	MCA Error		Returns the MCA	CSR: MCA_ERR_SRC_LOG
			Source Log		Error Source Log
					Read units for power,	MSR 606h:
Package Power	30	0x0000	Time, Energy	N/A	energy and time	PACKAGE_POWER_SKU_UNIT
SKU Unit Read			and Power Units		used in power	CSR:
					control registers.	PACKAGE_POWER_SKU_UNIT
					Returns Thermal	MSR 614h:
Package Power			Package Power	N/A	Design Power and
	28	0x0000			minimum package	PACKAGE_POWER_SKU
SKU Read			SKU[31:0]
					power values for the	CSR: PACKAGE_POWER_SKU
					processor SKU.
					Returns the
					maximum package	MSR 614h:
Package Power			Package Power		power value for the
	29	0x0000		N/A	processor SKU and	PACKAGE_POWER_SKU
SKU Read			SKU[64:32]
					the maximum time	CSR: PACKAGE_POWER_SKU
					interval for which it
					can be sustained.
“Wake on PECI”		0x0001 - Set			Enables package
	05		N/A	“Wake on PECI”	pop-up to C2 to	N/A
		0x0000 -
Mode Bit Write /				mode bit	service PECI
Read		Reset			PCIConfig() accesses
					if appropriate.

46	Intel® Xeon® Processor E5-1600/E5-2600/E5-4600 Product Families
	Datasheet Volume One