refactor(measured-boot): move image identifier strings to a common header
The image identifier strings are used across different measured boot
backends. Move them to a common location to avoid the redefiniton
of these per backend and to avoid code duplication.
Signed-off-by: Tamas Ban <tamas.ban@arm.com>
Change-Id: I58897b9a19396be932ca5d230ee00858c09ef03f
diff --git a/include/drivers/measured_boot/metadata.h b/include/drivers/measured_boot/metadata.h
new file mode 100644
index 0000000..7c1f0f9
--- /dev/null
+++ b/include/drivers/measured_boot/metadata.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2024, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef METADATA_H
+#define METADATA_H
+
+/*
+ * Images, measured during the boot process, have some associated metadata.
+ * One of these types of metadata is the image identifier strings. These macros
+ * define these strings. They are used across the different measured boot
+ * backends.
+ * Note that these strings follow the standardization recommendations
+ * defined in the Arm Server Base Security Guide (a.k.a. SBSG, Arm DEN 0086),
+ * where applicable. They should not be changed in the code.
+ * Where the SBSG does not make recommendations, we are free to choose any
+ * naming convention.
+ * The key thing is to choose meaningful strings so that when the measured boot
+ * metadata is used in attestation, the different components can be identified.
+ */
+#define MBOOT_BL2_IMAGE_STRING "BL_2"
+#define MBOOT_BL31_IMAGE_STRING "SECURE_RT_EL3"
+#if defined(SPD_opteed)
+#define MBOOT_BL32_IMAGE_STRING "SECURE_RT_EL1_OPTEE"
+#elif defined(SPD_tspd)
+#define MBOOT_BL32_IMAGE_STRING "SECURE_RT_EL1_TSPD"
+#elif defined(SPD_tlkd)
+#define MBOOT_BL32_IMAGE_STRING "SECURE_RT_EL1_TLKD"
+#elif defined(SPD_trusty)
+#define MBOOT_BL32_IMAGE_STRING "SECURE_RT_EL1_TRUSTY"
+#else
+#define MBOOT_BL32_IMAGE_STRING "SECURE_RT_EL1_UNKNOWN"
+#endif /* SPD_opteed */
+#define MBOOT_BL32_EXTRA1_IMAGE_STRING "SECURE_RT_EL1_OPTEE_EXTRA1"
+#define MBOOT_BL32_EXTRA2_IMAGE_STRING "SECURE_RT_EL1_OPTEE_EXTRA2"
+#define MBOOT_BL33_IMAGE_STRING "BL_33"
+#define MBOOT_FW_CONFIG_STRING "FW_CONFIG"
+#define MBOOT_HW_CONFIG_STRING "HW_CONFIG"
+#define MBOOT_NT_FW_CONFIG_STRING "NT_FW_CONFIG"
+#define MBOOT_SCP_BL2_IMAGE_STRING "SYS_CTRL_2"
+#define MBOOT_SOC_FW_CONFIG_STRING "SOC_FW_CONFIG"
+#define MBOOT_STM32_STRING "STM32"
+#define MBOOT_TB_FW_CONFIG_STRING "TB_FW_CONFIG"
+#define MBOOT_TOS_FW_CONFIG_STRING "TOS_FW_CONFIG"
+#define MBOOT_RMM_IMAGE_STRING "RMM"
+#define MBOOT_SP1_STRING "SP1"
+#define MBOOT_SP2_STRING "SP2"
+#define MBOOT_SP3_STRING "SP3"
+#define MBOOT_SP4_STRING "SP4"
+#define MBOOT_SP5_STRING "SP5"
+#define MBOOT_SP6_STRING "SP6"
+#define MBOOT_SP7_STRING "SP7"
+#define MBOOT_SP8_STRING "SP8"
+
+#endif /* METADATA_H */