* Copyright (c) 2017, Intel Corporation. All rights reserved.
* Copyright (C) 2020 Linaro Ltd. <sughosh.ganu@linaro.org>
* Copyright (C) 2020 Linaro Ltd. <ilias.apalodimas@linaro.org>
+ * Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ * Authors:
+ * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
*/
#ifndef _MM_COMMUNICATION_H_
#include <part_efi.h>
+#if CONFIG_IS_ENABLED(ARM_FFA_TRANSPORT)
+/* MM service UUID string (big-endian format). This UUID is common across all MM SPs */
+#define MM_SP_UUID "33d532ed-e699-0942-c09c-a798d9cd722d"
+#endif
+
/*
* Interface to the pseudo Trusted Application (TA), which provides a
* communication channel with the Standalone MM (Management Mode)
* To avoid confusion in interpreting frames, the communication buffer should
* always begin with efi_mm_communicate_header.
*/
-struct efi_mm_communicate_header {
+struct __packed efi_mm_communicate_header {
efi_guid_t header_guid;
size_t message_len;
u8 data[];
#define MM_COMMUNICATE_HEADER_SIZE \
(sizeof(struct efi_mm_communicate_header))
-/* Defined in EDK2 ArmPkg/Include/IndustryStandard/ArmStdSmc.h */
+/* Defined in EDK2 ArmPkg/Include/IndustryStandard/ArmMmSvc.h */
-/* MM return error codes */
-#define ARM_SMC_MM_RET_SUCCESS 0
-#define ARM_SMC_MM_RET_NOT_SUPPORTED -1
-#define ARM_SMC_MM_RET_INVALID_PARAMS -2
-#define ARM_SMC_MM_RET_DENIED -3
-#define ARM_SMC_MM_RET_NO_MEMORY -4
+/* SPM return error codes */
+#define ARM_SVC_SPM_RET_SUCCESS 0
+#define ARM_SVC_SPM_RET_NOT_SUPPORTED -1
+#define ARM_SVC_SPM_RET_INVALID_PARAMS -2
+#define ARM_SVC_SPM_RET_DENIED -3
+#define ARM_SVC_SPM_RET_NO_MEMORY -5
/* Defined in EDK2 MdeModulePkg/Include/Guid/SmmVariableCommon.h */
u16 name[];
};
+#if CONFIG_IS_ENABLED(ARM_FFA_TRANSPORT)
+/* supported MM transports */
+enum mm_comms_select {
+ MM_COMMS_UNDEFINED,
+ MM_COMMS_FFA,
+ MM_COMMS_OPTEE
+};
+#endif
+
#endif /* _MM_COMMUNICATION_H_ */