mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 11:00:15 +00:00
23a397d2e2
In Arm devices OP-TEE has the ability to run StandAloneMM (from EDK2) in a separate partition and handle UEFI variables. A following patch introduces this functionality. Add the headers needed for OP-TEE <--> StandAloneMM communication Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
208 lines
6 KiB
C
208 lines
6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Headers for EFI variable service via StandAloneMM, EDK2 application running
|
|
* in OP-TEE
|
|
*
|
|
* 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>
|
|
*/
|
|
|
|
#ifndef _MM_COMMUNICATION_H_
|
|
#define _MM_COMMUNICATION_H_
|
|
|
|
#include <part_efi.h>
|
|
|
|
/*
|
|
* Interface to the pseudo Trusted Application (TA), which provides a
|
|
* communication channel with the Standalone MM (Management Mode)
|
|
* Secure Partition running at Secure-EL0
|
|
*/
|
|
|
|
#define PTA_STMM_CMDID_COMMUNICATE 0
|
|
|
|
/* OP-TEE is using big endian GUIDs while UEFI uses little endian ones */
|
|
#define PTA_STMM_UUID { 0xed32d533, 0x99e6, 0x4209, {\
|
|
0x9c, 0xc0, 0x2d, 0x72, 0xcd, 0xd9, 0x98, 0xa7 } }
|
|
|
|
#define EFI_MM_VARIABLE_GUID \
|
|
EFI_GUID(0xed32d533, 0x99e6, 0x4209, \
|
|
0x9c, 0xc0, 0x2d, 0x72, 0xcd, 0xd9, 0x98, 0xa7)
|
|
|
|
/* Defined in EDK2 MdePkg/Include/Protocol/MmCommunication.h */
|
|
|
|
/**
|
|
* struct efi_mm_communicate_header - Header used for SMM variable communication
|
|
|
|
* @header_guid: header use for disambiguation of content
|
|
* @message_len: length of the message. Does not include the size of the
|
|
* header
|
|
* @data: payload of the message
|
|
*
|
|
* Defined in EDK2 as EFI_MM_COMMUNICATE_HEADER.
|
|
* To avoid confusion in interpreting frames, the communication buffer should
|
|
* always begin with efi_mm_communicate_header.
|
|
*/
|
|
struct 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 */
|
|
|
|
/* 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
|
|
|
|
/* Defined in EDK2 MdeModulePkg/Include/Guid/SmmVariableCommon.h */
|
|
|
|
#define SMM_VARIABLE_FUNCTION_GET_VARIABLE 1
|
|
/*
|
|
* The payload for this function is
|
|
* SMM_VARIABLE_COMMUNICATE_GET_NEXT_VARIABLE_NAME.
|
|
*/
|
|
#define SMM_VARIABLE_FUNCTION_GET_NEXT_VARIABLE_NAME 2
|
|
/*
|
|
* The payload for this function is SMM_VARIABLE_COMMUNICATE_ACCESS_VARIABLE.
|
|
*/
|
|
#define SMM_VARIABLE_FUNCTION_SET_VARIABLE 3
|
|
/*
|
|
* The payload for this function is
|
|
* SMM_VARIABLE_COMMUNICATE_QUERY_VARIABLE_INFO.
|
|
*/
|
|
#define SMM_VARIABLE_FUNCTION_QUERY_VARIABLE_INFO 4
|
|
/*
|
|
* It is a notify event, no extra payload for this function.
|
|
*/
|
|
#define SMM_VARIABLE_FUNCTION_READY_TO_BOOT 5
|
|
/*
|
|
* It is a notify event, no extra payload for this function.
|
|
*/
|
|
#define SMM_VARIABLE_FUNCTION_EXIT_BOOT_SERVICE 6
|
|
/*
|
|
* The payload for this function is VARIABLE_INFO_ENTRY.
|
|
* The GUID in EFI_SMM_COMMUNICATE_HEADER is gEfiSmmVariableProtocolGuid.
|
|
*/
|
|
#define SMM_VARIABLE_FUNCTION_GET_STATISTICS 7
|
|
/*
|
|
* The payload for this function is SMM_VARIABLE_COMMUNICATE_LOCK_VARIABLE
|
|
*/
|
|
#define SMM_VARIABLE_FUNCTION_LOCK_VARIABLE 8
|
|
|
|
#define SMM_VARIABLE_FUNCTION_VAR_CHECK_VARIABLE_PROPERTY_SET 9
|
|
|
|
#define SMM_VARIABLE_FUNCTION_VAR_CHECK_VARIABLE_PROPERTY_GET 10
|
|
|
|
#define SMM_VARIABLE_FUNCTION_GET_PAYLOAD_SIZE 11
|
|
/*
|
|
* The payload for this function is
|
|
* SMM_VARIABLE_COMMUNICATE_RUNTIME_VARIABLE_CACHE_CONTEXT
|
|
*/
|
|
#define SMM_VARIABLE_FUNCTION_INIT_RUNTIME_VARIABLE_CACHE_CONTEXT 12
|
|
|
|
#define SMM_VARIABLE_FUNCTION_SYNC_RUNTIME_CACHE 13
|
|
/*
|
|
* The payload for this function is
|
|
* SMM_VARIABLE_COMMUNICATE_GET_RUNTIME_CACHE_INFO
|
|
*/
|
|
#define SMM_VARIABLE_FUNCTION_GET_RUNTIME_CACHE_INFO 14
|
|
|
|
/**
|
|
* struct smm_variable_communicate_header - Used for SMM variable communication
|
|
|
|
* @function: function to call in Smm.
|
|
* @ret_status: return status
|
|
* @data: payload
|
|
*
|
|
* Defined in EDK2 as SMM_VARIABLE_COMMUNICATE_HEADER.
|
|
*/
|
|
struct smm_variable_communicate_header {
|
|
efi_uintn_t function;
|
|
efi_status_t ret_status;
|
|
u8 data[];
|
|
};
|
|
|
|
#define MM_VARIABLE_COMMUNICATE_SIZE \
|
|
(sizeof(struct smm_variable_communicate_header))
|
|
|
|
/**
|
|
* struct smm_variable_access - Used to communicate with StMM by
|
|
* SetVariable and GetVariable.
|
|
|
|
* @guid: vendor GUID
|
|
* @data_size: size of EFI variable data
|
|
* @name_size: size of EFI name
|
|
* @attr: attributes
|
|
* @name: variable name
|
|
*
|
|
* Defined in EDK2 as SMM_VARIABLE_COMMUNICATE_ACCESS_VARIABLE.
|
|
*
|
|
*/
|
|
struct smm_variable_access {
|
|
efi_guid_t guid;
|
|
efi_uintn_t data_size;
|
|
efi_uintn_t name_size;
|
|
u32 attr;
|
|
u16 name[];
|
|
};
|
|
|
|
#define MM_VARIABLE_ACCESS_HEADER_SIZE \
|
|
(sizeof(struct smm_variable_access))
|
|
/**
|
|
* struct smm_variable_payload_size - Used to get the max allowed
|
|
* payload used in StMM.
|
|
*
|
|
* @size: size to fill in
|
|
*
|
|
* Defined in EDK2 as SMM_VARIABLE_COMMUNICATE_GET_PAYLOAD_SIZE.
|
|
*
|
|
*/
|
|
struct smm_variable_payload_size {
|
|
efi_uintn_t size;
|
|
};
|
|
|
|
/**
|
|
* struct smm_variable_getnext - Used to communicate with StMM for
|
|
* GetNextVariableName.
|
|
*
|
|
* @guid: vendor GUID
|
|
* @name_size: size of the name of the variable
|
|
* @name: variable name
|
|
*
|
|
* Defined in EDK2 as SMM_VARIABLE_COMMUNICATE_GET_NEXT_VARIABLE_NAME.
|
|
*/
|
|
struct smm_variable_getnext {
|
|
efi_guid_t guid;
|
|
efi_uintn_t name_size;
|
|
u16 name[];
|
|
};
|
|
|
|
#define MM_VARIABLE_GET_NEXT_HEADER_SIZE \
|
|
(sizeof(struct smm_variable_getnext))
|
|
|
|
/**
|
|
* struct smm_variable_query_info - Used to communicate with StMM for
|
|
* QueryVariableInfo.
|
|
*
|
|
* @max_variable_storage: max available storage
|
|
* @remaining_variable_storage: remaining available storage
|
|
* @max_variable_size: max variable supported size
|
|
* @attr: attributes to query storage for
|
|
*
|
|
* Defined in EDK2 as SMM_VARIABLE_COMMUNICATE_QUERY_VARIABLE_INFO.
|
|
*/
|
|
struct smm_variable_query_info {
|
|
u64 max_variable_storage;
|
|
u64 remaining_variable_storage;
|
|
u64 max_variable_size;
|
|
u32 attr;
|
|
};
|
|
|
|
#endif /* _MM_COMMUNICATION_H_ */
|