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TF-A: Document SMC_PCI_SUPPORT option

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Add some basic documentation and pointers for the SMCCC PCI
build options.

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Change-Id: Ia35f31d15066ea74135367cde2dce2f26e6ab31e
This commit is contained in:
Jeremy Linton 2021-01-26 22:42:03 -06:00 • committed by Manish Pandey
parent 1cdf1eb875
commit 2d31cb079b
1 changed files with 8 additions and 0 deletions
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8
docs/getting_started/build-options.rst
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@ -579,6 +579,11 @@ Common build options
``BL31_NOBITS_LIMIT``. When the option is ``0`` (the default), NOBITS
sections are placed in RAM immediately following the loaded firmware image.
- ``SMC_PCI_SUPPORT``: This option allows platforms to handle PCI configuration
access requests via a standard SMCCC defined in `DEN0115`_. When combined with
UEFI+ACPI this can provide a certain amount of OS forward compatibility
with newer platforms that aren't ECAM compliant.
- ``SPD``: Choose a Secure Payload Dispatcher component to be built into TF-A.
This build option is only valid if ``ARCH=aarch64``. The value should be
the path to the directory containing the SPD source, relative to
@ -849,3 +854,6 @@ commands can be used:
--------------
*Copyright (c) 2019-2021, Arm Limited. All rights reserved.*
.. _DEN0115: https://developer.arm.com/docs/den0115/latest