feat(rme): add ENABLE_RME build option and support for RMM image
The changes include:
- A new build option (ENABLE_RME) to enable FEAT_RME
- New image called RMM. RMM is R-EL2 firmware that manages Realms.
When building TF-A, a path to RMM image can be specified using
the "RMM" build flag. If RMM image is not provided, TRP is built
by default and used as RMM image.
- Support for RMM image in fiptool
Signed-off-by: Zelalem Aweke <zelalem.aweke@arm.com>
Change-Id: I017c23ef02e465a5198baafd665a60858ecd1b25
diff --git a/docs/getting_started/build-options.rst b/docs/getting_started/build-options.rst
index 7fe6ccd..1259881 100644
--- a/docs/getting_started/build-options.rst
+++ b/docs/getting_started/build-options.rst
@@ -271,6 +271,10 @@
be enabled. If ``ENABLE_PMF`` is set, the residency statistics are tracked in
software.
+- ``ENABLE_RME``: Boolean option to enable support for the ARMv9 Realm
+ Management Extension. Default value is 0. This is currently an experimental
+ feature.
+
- ``ENABLE_RUNTIME_INSTRUMENTATION``: Boolean option to enable runtime
instrumentation which injects timestamp collection points into TF-A to
allow runtime performance to be measured. Currently, only PSCI is