meta-arm/meta-arm-bsp/recipes-security/trusted-services/secure-partitions/corstone1000/0004-Update-mm-comm-buffer-region-in-dts-file.patch

From 97b4f3cd0216c30c39f6ece4f68d8faf3901fded Mon Sep 17 00:00:00 2001
From: Gowtham Suresh Kumar <gowtham.sureshkumar@arm.com>
Date: Wed, 17 Nov 2021 15:31:09 +0000
Subject: [PATCH] Update mm-comm-buffer region in dts file

Upstream-Status: Pending [Not submitted to upstream yet]
Signed-off-by: Gowtham Suresh Kumar <gowtham.sureshkumar@arm.com>


---
 .../opteesp/default_smm-gateway.dts.in        | 35 ++++++++++---------
 1 file changed, 18 insertions(+), 17 deletions(-)

diff --git a/deployments/smm-gateway/opteesp/default_smm-gateway.dts.in b/deployments/smm-gateway/opteesp/default_smm-gateway.dts.in
index 0ad7878b..183c38a7 100644
--- a/deployments/smm-gateway/opteesp/default_smm-gateway.dts.in
+++ b/deployments/smm-gateway/opteesp/default_smm-gateway.dts.in
@@ -7,23 +7,24 @@
 @DTS_TAG@
 
 @DTS_NODE@ {
-	compatible = "arm,ffa-manifest-1.0";
-	ffa-version = <0x00010000>; /* 31:16 - Major, 15:0 - Minor */
-	uuid = <@EXPORT_SP_UUID_DT@>;
-	description = "SMM Gateway";
-	execution-ctx-count = <1>;
-	exception-level = <1>; /* S-EL0 */
-	execution-state = <0>; /* AArch64 */
-	xlat-granule = <0>; /* 4KiB */
-	messaging-method = <0>; /* Direct messaging only */
-
-	memory-regions {
-		compatible = "arm,ffa-manifest-memory-regions";
-
-		mm-comm-buffer {
-			base-address = <@MM_COMM_BUFFER_ADDRESS@>;
-			pages-count = <@MM_COMM_BUFFER_PAGE_COUNT@>;
-			attributes = <0xb>;  /* ns access-read-write */
+	smm-gateway{
+		compatible = "arm,ffa-manifest-1.0";
+		ffa-version = <0x00010000>; /* 31:16 - Major, 15:0 - Minor */
+		uuid = <@EXPORT_SP_UUID_DT@>;
+		description = "SMM Gateway";
+		execution-ctx-count = <1>;
+		exception-level = <1>; /* S-EL0 */
+		execution-state = <0>; /* AArch64 */
+		xlat-granule = <0>; /* 4KiB */
+		messaging-method = <0>; /* Direct messaging only */
+		device-regions {
+          compatible = "arm,ffa-manifest-device-regions";
+          mm-comm-buffer {
+              /* Armv8 A Foundation Platform values */
+              base-address = <0x00000000 0x02000000>;
+              pages-count = <1>;
+              attributes = <0x3>; /* read-write */
+              };
 		};
 	};
 };