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docs: update Measured Boot PoC

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Updated the Measured Boot PoC to be compliant with the current TF-A
implementation that supports multiple Measured Boot backends, which
are the RSS and Event Log.

Change-Id: I8a38a801dd75e6282d103e154966959bba2d1ec7
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
This commit is contained in:
Manish V Badarkhe 2023-06-09 14:44:13 +01:00
parent c161772f40
commit 30ee1b065d
1 changed files with 4 additions and 4 deletions
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8
docs/design_documents/measured_boot_poc.rst
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@ -5,10 +5,10 @@ Measured Boot is the process of cryptographically measuring the code and
critical data used at boot time, for example using a TPM, so that the critical data used at boot time, for example using a TPM, so that the
security state can be attested later. security state can be attested later.
The current implementation of the driver included in Trusted Firmware-A The current implementation of the driver included in |TF-A| supports several
(TF-A) stores the measurements into a `TCG event log`_ in secure backends and each has a different means to store the measurements.
memory. No other means of recording measurements (such as a discrete TPM) is This section focuses on the `TCG event log`_ backend, which stores measurements
supported right now. in secure memory.
The driver also provides mechanisms to pass the Event Log to normal world if The driver also provides mechanisms to pass the Event Log to normal world if
needed. needed.