EFI Preboot Guidelines and Windows 8 UEFI Secure Boot for HP Business Notebooks and Desktops PPS Business Notebook and Desktop Technical white paper

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Appendix
Table A1: PCR measurement
PCR
BNB expected
BNB actual
PCR 0
S-CRTM’s version identifier using the
event type EV_S_CRTM_VERSION
All Host Platform firmware using the
event type EV_POST_CODE
ACPI data using event type
EV_EFI_HANDOFF_TABLES
S-CRTM’s version identifier using the
event type EV_S_CRTM_VERSION
All Host Platform firmware using the
event type EV_POST_CODE
PCR 1
Not used
PCR 2
Non manufacturer
controlled
options/UEFI
drivers
Not used
Currently measuring FV(??)
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_EFI_ACTION event “Calling EFI
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_EFI_ACTION event “Calling EFI
Application from Boot Option.” See
Section 11.3.3 (EV_ACTION Event Types).
PCR 5
Not used
Calling EFI application event, GPT
PCR 6
Not used (UEFI Secure Boot data in spec
but MS indicates that they want that in
PCR 7)
Secure Boot variables
PCR 7
Not used
General UEFI requirements
A UEFI BIOS supporting Win8 implements the following sections of the UEFI 2.3.1 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.