HP 8300 Appendix, General Uefi requirements, PCR boot measurements for notebook products, Pcr

Technical white paper UEFI Secure Boot on HP business notebooks, desktops, and workstations

Appendix

General UEFI requirements

The BIOS incorporated in the HP business notebooks, desktops, and workstations supporting Windows 8 conforms to the following sections of the UEFI 2.3.1 Class 2 specification:

2.3, 3.1, 4.3, 6.1 ~ 6.5, 7.1~7.5, 8.1, 8.2, 9.1, 9.5, 11.2 ~ 11.4, 11.8, 11.9, 12.4, 12.7, 12.8, 12.9, 18.5, 21.1, 21.3, 21.5, 27.1~27.8.

PCR boot measurements for notebook products

Table A1 lists the PCR boot measurements for notebook products. Section references indicated in Table A1 refer to the UEFI 2.3.1 Class 2 specification document.

Table A1..PCR boot measurements for hp business notebook products

PCR	Expected measurement	Actual measurement
PCR 0	S-CRTM’s version identifier using the	S-CRTM’s version identifier using the event type
	event type EV_S_CRTM_VERSION	EV_S_CRTM_VERSION
	All Host Platform firmware using the	All Host Platform firmware using the event type
	event type EV_POST_CODE	EV_POST_CODE
	ACPI data using event type
	EV_UEFI_HANDOFF_TABLES
PCR 1	Not used
PCR 2	Not used	Currently measuring FV(??)
Non-manufacturer
controlled options/UEFI
drivers
PCR 3	Not used

PCR 4	If the BIOS is configured or designed to
	not record each device the BIOS
	attempts to boot, an
	EV_OMIT_BOOT_DEVICE_EVENTS
	event MUST be measured once. See
	Section 11.3.1 (Event Types).
	The BIOS MUST record the EV_ACTION
	event “Calling INT 19h” or the
	EV_UEFI_ACTION event “Calling UEFI
	Application from Boot Option.” See
	Section 11.3.3 (EV_ACTION Event
	Types).

The BIOS MUST record the EV_ACTION event “Calling INT 19h” or the EV_UEFI_ACTION event “Calling UEFI Application from Boot Option.” See Section 11.3.3 (EV_ACTION Event Types).

PCR 5	Not used	Calling UEFI application event, GPT
PCR 6	Not used (UEFI Secure Boot data in	Secure Boot variables
	spec but MS indicates that they want
	that in PCR 7)
PCR 7	Not used

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