These two codes are following two specs now.
The current TcgDxe implemented the TCG EFI Protocol Spec (version 1.20,
revision 1.00) and TCG EFI Platform Spec (version 1.20, revision 1.00). The
Boot Variables (BootOrder, Boot####) were measured into PCR5. (Please note: Two
updated version (v1.22) for TCG EFI support were published at TCG website, but
the current TcgDxe wasn't aligned with these two updates)
Microsoft TrEE extended some UEFI Configuration data into PCR[7], e.g.
SecureBoot, PK, DB variables, etc. Please refer to
http://msdn.microsoft.com/en-us/library/windows/hardware/jj923068.aspx
(Measuring UEFI Configuration into PCR[7])
Best Regards & Thanks,
LONG, Qin
From: Anbazhagan, Baraneedharan [mailto:[email protected]]
Sent: Sunday, December 14, 2014 10:53 PM
To: [email protected]
Subject: [edk2] Inconsistent TPM PCR7
Hi,
MeasureVariable routine in TcgDxe module uses variable value as hash data. But
MeasureVariable routine in TrEEDxe module have a filter for
EV_EFI_VARIABLE_DRIVER_CONFIG event types and uses pointer to
EFI_VARIABLE_DATA_TREE as hash data. Whether TCG have different requirements
for PCR7 between TPM 1.2/TPM2?
-Baranee
CONFIDENTIALITY NOTICE: The information contained in this e-mail and any
accompanying documents may contain information which is HP confidential or
otherwise protected from disclosure. This transmission may also be protected by
the attorney-client privilege, the attorney work-product privilege, or both. If
you are not the intended recipient of this message, or if this message has been
addressed to you in error, please immediately alert the sender by reply e-mail
and then delete this message, including any attachments. Any dissemination,
distribution or other use of the contents of this message by anyone other than
the intended recipient is strictly prohibited.
------------------------------------------------------------------------------
Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server
from Actuate! Instantly Supercharge Your Business Reports and Dashboards
with Interactivity, Sharing, Native Excel Exports, App Integration & more
Get technology previously reserved for billion-dollar corporations, FREE
http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk
_______________________________________________
edk2-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/edk2-devel
