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8d73be7a8e
Add a driver for a firmware TPM running inside TEE. Documentation of the firmware TPM: https://www.microsoft.com/en-us/research/publication/ftpm-software-implementation-tpm-chip/ Implementation of the firmware TPM: https://github.com/Microsoft/ms-tpm-20-ref/tree/master/Samples/ARM32-FirmwareTPM Signed-off-by: Thirupathaiah Annapureddy <thiruan@linux.microsoft.com>
36 lines
944 B
C
36 lines
944 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) Microsoft Corporation
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*/
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#ifndef __TPM2_FTPM_TEE_H__
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#define __TPM2_FTPM_TEE_H__
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/* This UUID is generated with uuidgen */
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#define TA_FTPM_UUID { 0xBC50D971, 0xD4C9, 0x42C4, \
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{0x82, 0xCB, 0x34, 0x3F, 0xB7, 0xF3, 0x78, 0x96} }
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/* The TAFs ID implemented in this TA */
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#define FTPM_OPTEE_TA_SUBMIT_COMMAND (0)
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#define FTPM_OPTEE_TA_EMULATE_PPI (1)
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/* max. buffer size supported by fTPM */
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#define MAX_COMMAND_SIZE 4096
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#define MAX_RESPONSE_SIZE 4096
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/**
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* struct ftpm_tee_private - fTPM's private context
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* @tee_dev: struct udevice for TEE.
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* @session: fTPM TA session identifier.
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* @is_open: Indicates whether the driver is already opened by client or not.
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* @shm: Memory pool shared with fTPM TA in TEE.
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*/
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struct ftpm_tee_private {
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struct udevice *tee_dev;
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u32 session;
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int is_open;
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struct tee_shm *shm;
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};
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#endif /* __TPM2_FTPM_TEE_H__ */
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