diff --git a/config/arch/v8.9.yaml b/config/arch/v8.9.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..8651ebf15ece696078617fd0eeb40f07e6748636
--- /dev/null
+++ b/config/arch/v8.9.yaml
@@ -0,0 +1,26 @@
+# Copyright (c) 2023, Arm Limited.
+# SPDX-License-Identifier: MIT
+
+%YAML 1.2
+---
+description: >-
+  Implements all mandatory requirements and features as well as a sensible
+  selection of optional ones for the Armv8.9 architecture extension within the
+  Base_RevC-2xAEMvA FVP. Intended for use as an overlay to
+  FVP_Base_RevC-2xAEMvA-base.yaml.
+
+layers:
+  - arch/v8.8.yaml
+
+run:
+  params:
+    -C cluster0.has_arm_v8-9: 1
+    -C cluster1.has_arm_v8-9: 1
+    -C cluster0.has_permission_indirection_s1: 1
+    -C cluster1.has_permission_indirection_s1: 1
+    -C cluster0.has_permission_indirection_s2: 1
+    -C cluster1.has_permission_indirection_s2: 1
+    -C cluster0.has_permission_overlay_s1: 1
+    -C cluster1.has_permission_overlay_s1: 1
+    -C cluster0.has_permission_overlay_s2: 1
+    -C cluster1.has_permission_overlay_s2: 1
diff --git a/config/arch/v9.4.yaml b/config/arch/v9.4.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..c29d4e4050d17a91a0ecfd6cc16fc22dc9d997b5
--- /dev/null
+++ b/config/arch/v9.4.yaml
@@ -0,0 +1,21 @@
+# Copyright (c) 2023, Arm Limited.
+# SPDX-License-Identifier: MIT
+
+%YAML 1.2
+---
+description: >-
+  Implements all mandatory requirements and features as well as a sensible
+  selection of optional ones for the Armv9.4 architecture extension within the
+  Base_RevC-2xAEMvA FVP. Intended for use as an overlay to
+  FVP_Base_RevC-2xAEMvA-base.yaml.
+
+layers:
+  - arch/v8.9.yaml
+  - arch/v9.3.yaml
+
+run:
+  params:
+    -C cluster0.has_arm_v9-4: 1
+    -C cluster1.has_arm_v9-4: 1
+    -C cluster0.has_gcs: 1
+    -C cluster1.has_gcs: 1