/* * tpm_tis.h - QEMU's TPM TIS interface emulator * * Copyright (C) 2006, 2010-2013 IBM Corporation * * Authors: * Stefan Berger <stefanb@us.ibm.com> * David Safford <safford@us.ibm.com> * * This work is licensed under the terms of the GNU GPL, version 2 or later. * See the COPYING file in the top-level directory. * * Implementation of the TIS interface according to specs found at * http://www.trustedcomputinggroup.org * */ #ifndef TPM_TPM_TIS_H #define TPM_TPM_TIS_H #include "hw/isa/isa.h" #include "qemu-common.h" #define TPM_TIS_ADDR_BASE 0xFED40000 #define TPM_TIS_NUM_LOCALITIES 5 /* per spec */ #define TPM_TIS_LOCALITY_SHIFT 12 #define TPM_TIS_NO_LOCALITY 0xff #define TPM_TIS_IS_VALID_LOCTY(x) ((x) < TPM_TIS_NUM_LOCALITIES) #define TPM_TIS_IRQ 5 #define TPM_TIS_BUFFER_MAX 4096 #define TYPE_TPM_TIS "tpm-tis" typedef enum { TPM_TIS_STATE_IDLE = 0, TPM_TIS_STATE_READY, TPM_TIS_STATE_COMPLETION, TPM_TIS_STATE_EXECUTION, TPM_TIS_STATE_RECEPTION, } TPMTISState; /* locality data -- all fields are persisted */ typedef struct TPMLocality { TPMTISState state; uint8_t access; uint8_t sts; uint32_t inte; uint32_t ints; uint16_t w_offset; uint16_t r_offset; TPMSizedBuffer w_buffer; TPMSizedBuffer r_buffer; } TPMLocality; typedef struct TPMTISEmuState { QEMUBH *bh; uint32_t offset; uint8_t buf[TPM_TIS_BUFFER_MAX]; uint8_t active_locty; uint8_t aborting_locty; uint8_t next_locty; TPMLocality loc[TPM_TIS_NUM_LOCALITIES]; qemu_irq irq; uint32_t irq_num; } TPMTISEmuState; #endif /* TPM_TPM_TIS_H */