u-boot/drivers/tpm/tpm2_ftpm_tee.h
Thirupathaiah Annapureddy 8d73be7a8e tpm2: ftpm: A driver for firmware TPM running inside TEE
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>
2020-02-05 19:33:46 -07:00

35 lines
944 B
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) Microsoft Corporation
*/
#ifndef __TPM2_FTPM_TEE_H__
#define __TPM2_FTPM_TEE_H__
/* This UUID is generated with uuidgen */
#define TA_FTPM_UUID { 0xBC50D971, 0xD4C9, 0x42C4, \
{0x82, 0xCB, 0x34, 0x3F, 0xB7, 0xF3, 0x78, 0x96} }
/* The TAFs ID implemented in this TA */
#define FTPM_OPTEE_TA_SUBMIT_COMMAND (0)
#define FTPM_OPTEE_TA_EMULATE_PPI (1)
/* max. buffer size supported by fTPM */
#define MAX_COMMAND_SIZE 4096
#define MAX_RESPONSE_SIZE 4096
/**
* struct ftpm_tee_private - fTPM's private context
* @tee_dev: struct udevice for TEE.
* @session: fTPM TA session identifier.
* @is_open: Indicates whether the driver is already opened by client or not.
* @shm: Memory pool shared with fTPM TA in TEE.
*/
struct ftpm_tee_private {
struct udevice *tee_dev;
u32 session;
int is_open;
struct tee_shm *shm;
};
#endif /* __TPM2_FTPM_TEE_H__ */