meta-dts-distro/recipes-bsp/txe-secure-boot: Add smmstore recipe

Signed-off-by: Pawel Langowski <pawel.langowski@3mdeb.com>

meta-dts-distro/recipes-bsp/txe-secure-boot/files/a5df001.diff

@@ -0,0 +1,41 @@
+From a5df001f258be5536b7ad9f234546330d5f3ca66 Mon Sep 17 00:00:00 2001
+From: Maciej Pijanowski <maciej.pijanowski@3mdeb.com>
+Date: Wed, 29 May 2024 13:28:14 +0200
+Subject: [PATCH] util/smmstoretool: explain what happens when no store is found
+
+We are going to expose ths tool to end users, and want to take
+care that the presented information can be consumed by them.
+
+The current code simply prints below warnings if we use release
+binary available for end-user to download:
+
+No firmware volume header present
+No valid firmware volume was found
+
+It will be concerning and not clear to end users, they might not
+understant why it happens, what are the implications, and whether
+it is something that they should worry about.
+
+This commit tries to explain what actually happens here.
+
+Change-Id: Iaa2678f5ae7c243811484c0567ced97ae0b3fc0a
+Signed-off-by: Maciej Pijanowski <maciej.pijanowski@3mdeb.com>
+---
+
+diff --git a/util/smmstoretool/storage.c b/util/smmstoretool/storage.c
+index 8a02384..87284f7 100644
+--- a/util/smmstoretool/storage.c
++++ b/util/smmstoretool/storage.c
+@@ -50,6 +50,12 @@
+ 			goto error;
+ 		}
+
++		fprintf(stderr,
++			"\nThe variable store has not been found in the ROM image\n"
++			"and is about to be initialized. This situation is normal\n"
++			"for a release image, as the variable store is usually\n"
++			"initialized on the first boot of the platform.\n\n");
++
+ 		if (!fv_init(storage->region)) {
+ 			fprintf(stderr,
+ 				"Failed to create variable store in \"%s\"\n",

meta-dts-distro/recipes-bsp/txe-secure-boot/smmstore_git.bb

@@ -0,0 +1,21 @@
+DESCRIPTION = "Utility for generating TXE Secure Boot manifests"
+LICENSE = "GPL-2.0-or-later"
+
+SRC_URI = " \
+git://github.com/coreboot/coreboot.git;branch=main;protocol=https \
+file://a5df001.diff \
+"
+
+PV = "1.0+git${SRCPV}"
+SRCREV = "${AUTOREV}"
+
+LIC_FILES_CHKSUM = " \
+file://${WORKDIR}/git/LICENSES/GPL-2.0-or-later.txt;md5=261bea1168c0bdfa73232ee90df11eb6 \
+"
+
+S = "${WORKDIR}/git"
+
+# Change working directory after patching
+do_patch:append() {
+    d.setVar("S", "${WORKDIR}/git/util/txe_sb_tool")
+}