1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) Microsoft Corporation 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #ifndef __TPM_FTPM_TEE_H__ 7*4882a593Smuzhiyun #define __TPM_FTPM_TEE_H__ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <linux/tee_drv.h> 10*4882a593Smuzhiyun #include <linux/tpm.h> 11*4882a593Smuzhiyun #include <linux/uuid.h> 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun /* The TAFs ID implemented in this TA */ 14*4882a593Smuzhiyun #define FTPM_OPTEE_TA_SUBMIT_COMMAND (0) 15*4882a593Smuzhiyun #define FTPM_OPTEE_TA_EMULATE_PPI (1) 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun /* max. buffer size supported by fTPM */ 18*4882a593Smuzhiyun #define MAX_COMMAND_SIZE 4096 19*4882a593Smuzhiyun #define MAX_RESPONSE_SIZE 4096 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun /** 22*4882a593Smuzhiyun * struct ftpm_tee_private - fTPM's private data 23*4882a593Smuzhiyun * @chip: struct tpm_chip instance registered with tpm framework. 24*4882a593Smuzhiyun * @state: internal state 25*4882a593Smuzhiyun * @session: fTPM TA session identifier. 26*4882a593Smuzhiyun * @resp_len: cached response buffer length. 27*4882a593Smuzhiyun * @resp_buf: cached response buffer. 28*4882a593Smuzhiyun * @ctx: TEE context handler. 29*4882a593Smuzhiyun * @shm: Memory pool shared with fTPM TA in TEE. 30*4882a593Smuzhiyun */ 31*4882a593Smuzhiyun struct ftpm_tee_private { 32*4882a593Smuzhiyun struct tpm_chip *chip; 33*4882a593Smuzhiyun u32 session; 34*4882a593Smuzhiyun size_t resp_len; 35*4882a593Smuzhiyun u8 resp_buf[MAX_RESPONSE_SIZE]; 36*4882a593Smuzhiyun struct tee_context *ctx; 37*4882a593Smuzhiyun struct tee_shm *shm; 38*4882a593Smuzhiyun }; 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun #endif /* __TPM_FTPM_TEE_H__ */ 41