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diff --git a/config/cca-4world.yaml b/config/cca-4world.yaml
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+# Copyright (c) 2022, Arm Limited.
+# SPDX-License-Identifier: MIT
+
+%YAML 1.2
+---
+description: >-
+  Brings together a software stack to demonstrate Arm CCA running on FVP in a
+  four-world configuration. Includes TF-A in root world, Hafnium and some demo
+  secure partitions in secure world, RMM in realm world, and Linux in Normal
+  world.
+
+  In order to launch realm VMs, the user must bring their own rootfs that
+  contains a realm-aware kvmtool and an RSI-aware guest kernel image.
+
+concrete: true
+
+layers:
+  - cca-3world.yaml
+  - hafnium-base.yaml
+
+build:
+  tfa:
+    params:
+      SPD: spmd
+      SPMD_SPM_AT_SEL2: 1
+      SP_LAYOUT_FILE: ${artifact:SP_LAYOUT}
+      BL32: ${artifact:HAFNIUM}
+
+  # Provides secure partitions that run under Hafnium for demonstration.
+  tfa-tests:
+    repo:
+      remote: https://git.trustedfirmware.org/TF-A/tf-a-tests.git
+      revision: v2.8
+
+    toolchain: aarch64-none-elf-
+
+    params:
+      PLAT: fvp
+      DEBUG: 1
+
+    build:
+      # TODO: tfa-tests has makefile dependency bug that prevents parallel make (-j > 1).
+      - make BUILD_BASE=${param:builddir} ${param:join_equal} all pack_realm
+
+    clean:
+      - make BUILD_BASE=${param:builddir} realclean
+
+    artifacts:
+      SP_LAYOUT: ${param:builddir}/fvp/debug/sp_layout.json
+
+run:
+  terminals:
+    bp.terminal_2:
+      friendly: hafnium