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/** @file
OP-TEE specific header file.
Copyright (c) 2018, Linaro Ltd. All rights reserved.<BR>
Copyright (c) 2021, Arm Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef OPTEE_LIB_H_
#define OPTEE_LIB_H_
/*
* The 'Trusted OS Call UID' is supposed to return the following UUID for
* OP-TEE OS. This is a 128-bit value.
*/
#define OPTEE_OS_UID0 0x384fb3e0
#define OPTEE_OS_UID1 0xe7f811e3
#define OPTEE_OS_UID2 0xaf630002
#define OPTEE_OS_UID3 0xa5d5c51b
#define OPTEE_MESSAGE_ATTRIBUTE_TYPE_NONE 0x0
#define OPTEE_MESSAGE_ATTRIBUTE_TYPE_VALUE_INPUT 0x1
#define OPTEE_MESSAGE_ATTRIBUTE_TYPE_VALUE_OUTPUT 0x2
#define OPTEE_MESSAGE_ATTRIBUTE_TYPE_VALUE_INOUT 0x3
#define OPTEE_MESSAGE_ATTRIBUTE_TYPE_MEMORY_INPUT 0x9
#define OPTEE_MESSAGE_ATTRIBUTE_TYPE_MEMORY_OUTPUT 0xa
#define OPTEE_MESSAGE_ATTRIBUTE_TYPE_MEMORY_INOUT 0xb
#define OPTEE_MESSAGE_ATTRIBUTE_TYPE_MASK 0xff
#define OPTEE_SUCCESS 0x00000000
#define OPTEE_ORIGIN_COMMUNICATION 0x00000002
#define OPTEE_ERROR_COMMUNICATION 0xFFFF000E
typedef struct {
UINT64 BufferAddress;
UINT64 Size;
UINT64 SharedMemoryReference;
} OPTEE_MESSAGE_PARAM_MEMORY;
typedef struct {
UINT64 A;
UINT64 B;
UINT64 C;
} OPTEE_MESSAGE_PARAM_VALUE;
typedef union {
OPTEE_MESSAGE_PARAM_MEMORY Memory;
OPTEE_MESSAGE_PARAM_VALUE Value;
} OPTEE_MESSAGE_PARAM_UNION;
typedef struct {
UINT64 Attribute;
OPTEE_MESSAGE_PARAM_UNION Union;
} OPTEE_MESSAGE_PARAM;
#define OPTEE_MAX_CALL_PARAMS 4
typedef struct {
UINT32 Command;
UINT32 Function;
UINT32 Session;
UINT32 CancelId;
UINT32 Pad;
UINT32 Return;
UINT32 ReturnOrigin;
UINT32 NumParams;
// NumParams tells the actual number of element in Params
OPTEE_MESSAGE_PARAM Params[OPTEE_MAX_CALL_PARAMS];
} OPTEE_MESSAGE_ARG;
typedef struct {
EFI_GUID Uuid; // [in] GUID/UUID of the Trusted Application
UINT32 Session; // [out] Session id
UINT32 Return; // [out] Return value
UINT32 ReturnOrigin; // [out] Origin of the return value
} OPTEE_OPEN_SESSION_ARG;
typedef struct {
UINT32 Function; // [in] Trusted Application function, specific to the TA
UINT32 Session; // [in] Session id
UINT32 Return; // [out] Return value
UINT32 ReturnOrigin; // [out] Origin of the return value
OPTEE_MESSAGE_PARAM Params[OPTEE_MAX_CALL_PARAMS]; // Params for function to be invoked
} OPTEE_INVOKE_FUNCTION_ARG;
BOOLEAN
EFIAPI
IsOpteePresent (
VOID
);
EFI_STATUS
EFIAPI
OpteeInit (
VOID
);
EFI_STATUS
EFIAPI
OpteeOpenSession (
IN OUT OPTEE_OPEN_SESSION_ARG *OpenSessionArg
);
EFI_STATUS
EFIAPI
OpteeCloseSession (
IN UINT32 Session
);
EFI_STATUS
EFIAPI
OpteeInvokeFunction (
IN OUT OPTEE_INVOKE_FUNCTION_ARG *InvokeFunctionArg
);
#endif // OPTEE_LIB_H_
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