diff --git a/src/dsd-guide.adoc b/src/dsd-guide.adoc
index fd28508..44080f8 100644
--- a/src/dsd-guide.adoc
+++ b/src/dsd-guide.adoc
@@ -913,10 +913,22 @@ Scope (\_SB) {
 
 ===== Arm CoreSight ACPI Specification
 
-*3ECBC8B6-1D0E-4FB3-8107-E627F805C6CD*
+*3ecbc8b6-1d0e-4fb3-8107-e627f805c6cd*
 
 https://developer.arm.com/documentation/den0067/latest
 
+===== Arm SCMI Device Properties UUID 
+
+*84a2d1c6-86b6-4199-8dac-9c17449d5e03*
+
+https://developer.arm.com/documentation/111115/latest
+
+===== Arm FFA Device Properties UUID 
+
+*c08c3233-b316-4723-a9d7-e21b7ac0fb6a*
+
+https://developer.arm.com/documentation/den0077/latest
+
 
 [appendix]
 [#deprecated-device-properties]