diff --git a/docs/getting_started/build-options.rst b/docs/getting_started/build-options.rst
index ab787a7..d41a145 100644
--- a/docs/getting_started/build-options.rst
+++ b/docs/getting_started/build-options.rst
@@ -162,6 +162,16 @@
     cmake -DRMM_CONFIG=fvp_defcfg -S ${RMM_SOURCE_DIR} -B ${RMM_BUILD_DIR}
     cmake --build ${RMM_BUILD_DIR} -- checkincludes-codebase
 
+14.  Perform unit tests on development host:
+
+Build and run unit tests on host platform. It is recommended to do the Debug
+build of RMM.
+
+.. code-block:: bash
+
+    cmake -DRMM_CONFIG=host_defcfg -DHOST_VARIANT=host_test -DCMAKE_BUILD_TYPE=Debug -S ${RMM_SOURCE_DIR} -B ${RMM_BUILD_DIR}
+    cmake --build ${RMM_BUILD_DIR} -- run-unittests
+
 .. _build_options_table:
 
 ###################
@@ -198,6 +208,7 @@
    MBEDTLS_ECP_MAX_OPS		,248 -			,1000			,"Number of max operations per ECC signing iteration"
    RMM_FPU_USE_AT_REL2		,ON | OFF		,OFF(fake_host) ON(aarch64),"Enable FPU/SIMD usage in RMM."
    RMM_MAX_GRANULES		,			,0			,"Maximum number of memory granules available to the system"
+   HOST_VARIANT			,host_build | host_test	,host_build		, "Variant to build for the host platform. Only available when RMM_PLATFORM=host"
 
 
 
diff --git a/docs/readme.rst b/docs/readme.rst
index 25a7e1d..c198f72 100644
--- a/docs/readme.rst
+++ b/docs/readme.rst
@@ -64,7 +64,7 @@
 
 The TF-RMM project requires to be linked with certain other 3rd party projects
 and they are to be cloned from their repositories into ``ext`` folder before
-building. The projects are `MbedTLS`_, `t_cose`_, and `QCBOR`_.
+building. The projects are `MbedTLS`_, `t_cose`_, `QCBOR`_ and `CppUTest`_.
 
 The project also contains files which are imported from other projects
 into the source tree and may have a different license. Such files with
@@ -119,3 +119,4 @@
 .. _BSD-3-Clause License: https://tf-rmm.readthedocs.io/en/latest/about/license.html
 .. _License and Copyright for Contributions: https://tf-rmm.readthedocs.io/en/latest/process/contributing.html#license-and-copyright-for-contributions
 .. _Contributor's Guide: https://tf-rmm.readthedocs.io/en/latest/process/contributing.html
+.. _CppUTest: https://github.com/cpputest/cpputest.git