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docs: re-parent BL2 platform hooks for measured boot

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bl2_plat_mboot_init/finish() functions documentation was incorrectly
hooked up to BL2U-specific section.

Change-Id: I758cb8142e992b0c85ee36d5671fc9ecd5bde29b
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
This commit is contained in:
Sandrine Bailleux 2022-07-13 10:07:54 +02:00
parent 6367d196aa
commit a0915ba436
1 changed files with 36 additions and 36 deletions
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72
docs/getting_started/porting-guide.rst
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@ -1665,6 +1665,42 @@ element in the boot sequence. If there are no more boot sources then it
must return 0, otherwise it must return 1. The default implementation
of this always returns 0.
Function : bl2_plat_mboot_init() [optional]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
Argument : void
Return : void
When the MEASURED_BOOT flag is enabled:
- This function is used to initialize the backend driver(s) of measured boot.
- On the Arm FVP port, this function is used to initialize the Event Log
backend driver with the Event Log buffer information (base address and
size) received from BL1. It results in panic on error.
When the MEASURED_BOOT flag is disabled, this function doesn't do anything.
Function : bl2_plat_mboot_finish() [optional]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
Argument : void
Return : void
When the MEASURED_BOOT flag is enabled:
- This function is used to finalize the measured boot backend driver(s),
and also, set the information for the next bootloader component to extend
the measurement if needed.
- On the Arm FVP port, this function is used to pass the Event Log buffer
information (base address and size) to non-secure(BL33) and trusted OS(BL32)
via nt_fw and tos_fw config respectively. It results in panic on error.
When the MEASURED_BOOT flag is disabled, this function doesn't do anything.
Boot Loader Stage 2 (BL2) at EL3
--------------------------------
@ -1822,42 +1858,6 @@ Application Processor (AP) for BL2U execution to continue.
This function returns 0 on success, a negative error code otherwise.
This function is included if SCP_BL2U_BASE is defined.
Function : bl2_plat_mboot_init() [optional]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
Argument : void
Return : void
When the MEASURED_BOOT flag is enabled:
- This function is used to initialize the backend driver(s) of measured boot.
- On the Arm FVP port, this function is used to initialize the Event Log
backend driver with the Event Log buffer information (base address and
size) received from BL1. It results in panic on error.
When the MEASURED_BOOT flag is disabled, this function doesn't do anything.
Function : bl2_plat_mboot_finish() [optional]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
Argument : void
Return : void
When the MEASURED_BOOT flag is enabled:
- This function is used to finalize the measured boot backend driver(s),
and also, set the information for the next bootloader component to extend
the measurement if needed.
- On the Arm FVP port, this function is used to pass the Event Log buffer
information (base address and size) to non-secure(BL33) and trusted OS(BL32)
via nt_fw and tos_fw config respectively. It results in panic on error.
When the MEASURED_BOOT flag is disabled, this function doesn't do anything.
Boot Loader Stage 3-1 (BL31)
----------------------------