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-rw-r--r--docs/getting_started/build-options.rst19
1 files changed, 18 insertions, 1 deletions
diff --git a/docs/getting_started/build-options.rst b/docs/getting_started/build-options.rst
index 2e608e2..95724e7 100644
--- a/docs/getting_started/build-options.rst
+++ b/docs/getting_started/build-options.rst
@@ -70,6 +70,23 @@ payload, whose simplistic build system is mostly independent.
- ``V``: Verbose build. If assigned anything other than 0, the build commands
are printed. Default is 0.
+Arm FVP Platform Specific Build Options
+---------------------------------------
+
+- ``FVP_CLUSTER_COUNT`` : Configures the cluster count to be used to build the
+ topology tree within TFTF. By default TFTF is configured for dual cluster for
+ CPUs with single thread (ST) and single cluster for SMT CPUs.
+ For ST CPUs this option can be used to override the default number of clusters
+ with a value in the range 1-4.
+
+- ``FVP_MAX_CPUS_PER_CLUSTER``: Sets the maximum number of CPUs implemented in
+ a single cluster. This option defaults to the maximum value of 4 for ST CPUs
+ and maximum value of 8 for SMT CPUs.
+
+- ``FVP_MAX_PE_PER_CPU``: Sets the maximum number of PEs implemented on any CPU
+ in the system. This option defaults to 1 to select ST CPUs. For platforms with
+ SMT CPUs this value must be set to 2.
+
TFTF-specific Build Options
---------------------------
@@ -107,4 +124,4 @@ FWU-specific Build Options
--------------
-*Copyright (c) 2019, Arm Limited. All rights reserved.*
+*Copyright (c) 2019-2020, Arm Limited. All rights reserved.*