feat(lib): introduce Hob creation library
According to Platform Initialization (PI) Specification [1] and
discussion on edk2 mailing list [2],
StandaloneMm shouldn't create Hob but it should be passed from TF-A.
IOW, TF-A should pass boot information via HOB list to initialise
StandaloneMm properly.
And this HOB lists could be delivered via
- SPM_MM: Transfer List according to the firmware handoff spec[3]
- FF-A v1.1 >= : FF-A boot protocol.
This patch introduces a TF-A HOB creation library and
some of definitions which StandaloneMm requires to boot.
Link: https://uefi.org/sites/default/files/resources/PI_Spec_1_6.pdf [1]
Link: https://edk2.groups.io/g/devel/topic/103675962#114283 [2]
Link: https://github.com/FirmwareHandoff/firmware_handoff [3]
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
Change-Id: I5e0838adce487110206998a8b79bc3adca922cec
diff --git a/docs/getting_started/build-options.rst b/docs/getting_started/build-options.rst
index ab0b94d..7d067c6 100644
--- a/docs/getting_started/build-options.rst
+++ b/docs/getting_started/build-options.rst
@@ -1411,6 +1411,10 @@
interface through BL31 as a SiP SMC function.
Default is disabled (0).
+- ``HOB_LIST``: Setting this to ``1`` enables support for passing boot
+ information using HOB defined in `Platform Initialization specification`_.
+ This defaults to ``0``.
+
Firmware update options
~~~~~~~~~~~~~~~~~~~~~~~
@@ -1454,3 +1458,4 @@
.. _Clang: https://clang.llvm.org/docs/DiagnosticsReference.html
.. _Firmware Handoff specification: https://github.com/FirmwareHandoff/firmware_handoff/releases/tag/v0.9
.. _PSA Crypto API specification: https://armmbed.github.io/mbed-crypto/html/
+.. _Platform Initialization specification: https://uefi.org/specs/PI/1.8/index.html