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/*
* Public TPM functions
*
* Copyright (C) 2011-2013 IBM Corporation
*
* Authors:
* Stefan Berger <stefanb@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.
*/
#ifndef QEMU_TPM_H
#define QEMU_TPM_H
#include "qapi/qapi-types-tpm.h"
#include "qom/object.h"
#ifdef CONFIG_TPM
int tpm_config_parse(QemuOptsList *opts_list, const char *optstr);
int tpm_init(void);
void tpm_cleanup(void);
typedef enum TPMVersion {
TPM_VERSION_UNSPEC = 0,
TPM_VERSION_1_2 = 1,
TPM_VERSION_2_0 = 2,
} TPMVersion;
#define TYPE_TPM_IF "tpm-if"
typedef struct TPMIfClass TPMIfClass;
DECLARE_CLASS_CHECKERS(TPMIfClass, TPM_IF,
TYPE_TPM_IF)
#define TPM_IF(obj) \
INTERFACE_CHECK(TPMIf, (obj), TYPE_TPM_IF)
typedef struct TPMIf TPMIf;
struct TPMIfClass {
InterfaceClass parent_class;
enum TpmModel model;
void (*request_completed)(TPMIf *obj, int ret);
enum TPMVersion (*get_version)(TPMIf *obj);
};
#define TYPE_TPM_TIS_ISA "tpm-tis"
#define TYPE_TPM_TIS_SYSBUS "tpm-tis-device"
#define TYPE_TPM_CRB "tpm-crb"
#define TYPE_TPM_SPAPR "tpm-spapr"
#define TYPE_TPM_TIS_I2C "tpm-tis-i2c"
#define TPM_IS_TIS_ISA(chr) \
object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS_ISA)
#define TPM_IS_TIS_SYSBUS(chr) \
object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS_SYSBUS)
#define TPM_IS_CRB(chr) \
object_dynamic_cast(OBJECT(chr), TYPE_TPM_CRB)
#define TPM_IS_SPAPR(chr) \
object_dynamic_cast(OBJECT(chr), TYPE_TPM_SPAPR)
#define TPM_IS_TIS_I2C(chr) \
object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS_I2C)
/* returns NULL unless there is exactly one TPM device */
static inline TPMIf *tpm_find(void)
{
Object *obj = object_resolve_path_type("", TYPE_TPM_IF, NULL);
return TPM_IF(obj);
}
static inline TPMVersion tpm_get_version(TPMIf *ti)
{
if (!ti) {
return TPM_VERSION_UNSPEC;
}
return TPM_IF_GET_CLASS(ti)->get_version(ti);
}
#else /* CONFIG_TPM */
#define tpm_init() (0)
#define tpm_cleanup()
/* needed for an alignment check in non-tpm code */
static inline Object *TPM_IS_CRB(Object *obj)
{
return NULL;
}
#endif /* CONFIG_TPM */
#endif /* QEMU_TPM_H */
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