ac90053dcc
Move the device agnostic code into tpm_tis_common.c and put the ISA device specific code into tpm_tis_isa.c Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Message-id: 20200305165149.618-4-eric.auger@redhat.com Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
/*
|
|
* tpm_tis.h - QEMU's TPM TIS common header
|
|
*
|
|
* Copyright (C) 2006,2010-2013 IBM Corporation
|
|
*
|
|
* Authors:
|
|
* Stefan Berger <stefanb@us.ibm.com>
|
|
* David Safford <safford@us.ibm.com>
|
|
*
|
|
* Xen 4 support: Andrease Niederl <andreas.niederl@iaik.tugraz.at>
|
|
*
|
|
* 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. This implementation currently
|
|
* supports version 1.3, 21 March 2013
|
|
* In the developers menu choose the PC Client section then find the TIS
|
|
* specification.
|
|
*
|
|
* TPM TIS for TPM 2 implementation following TCG PC Client Platform
|
|
* TPM Profile (PTP) Specification, Familiy 2.0, Revision 00.43
|
|
*/
|
|
#ifndef TPM_TPM_TIS_H
|
|
#define TPM_TPM_TIS_H
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "sysemu/tpm_backend.h"
|
|
#include "tpm_ppi.h"
|
|
|
|
#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_BUFFER_MAX 4096
|
|
|
|
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;
|
|
uint32_t sts;
|
|
uint32_t iface_id;
|
|
uint32_t inte;
|
|
uint32_t ints;
|
|
} TPMLocality;
|
|
|
|
typedef struct TPMState {
|
|
MemoryRegion mmio;
|
|
|
|
unsigned char buffer[TPM_TIS_BUFFER_MAX];
|
|
uint16_t rw_offset;
|
|
|
|
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;
|
|
|
|
TPMBackendCmd cmd;
|
|
|
|
TPMBackend *be_driver;
|
|
TPMVersion be_tpm_version;
|
|
|
|
size_t be_buffer_size;
|
|
|
|
bool ppi_enabled;
|
|
TPMPPI ppi;
|
|
} TPMState;
|
|
|
|
extern const VMStateDescription vmstate_locty;
|
|
extern const MemoryRegionOps tpm_tis_memory_ops;
|
|
|
|
int tpm_tis_pre_save(TPMState *s);
|
|
void tpm_tis_reset(TPMState *s);
|
|
enum TPMVersion tpm_tis_get_tpm_version(TPMState *s);
|
|
void tpm_tis_request_completed(TPMState *s, int ret);
|
|
|
|
#endif /* TPM_TPM_TIS_H */
|