xref: /freebsd/usr.sbin/bhyve/tpm_intf.h (revision 02e9120893770924227138ba49df1edb3896112a)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2022 Beckhoff Automation GmbH & Co. KG
5  * Author: Corvin Köhne <c.koehne@beckhoff.com>
6  */
7 
8 #pragma once
9 
10 #include <vmmapi.h>
11 
12 #include "acpi_device.h"
13 #include "config.h"
14 #include "tpm_device.h"
15 #include "tpm_emul.h"
16 
17 #define TPM_INTF_TYPE_FIFO_PTP 0x0
18 #define TPM_INTF_TYPE_CRB 0x1
19 #define TPM_INTF_TYPE_FIFO_TIS 0xF
20 
21 #define TPM_INTF_VERSION_FIFO 0
22 #define TPM_INTF_VERSION_CRB 1
23 
24 #define TPM_INTF_CAP_CRB_DATA_XFER_SIZE_4 0
25 #define TPM_INTF_CAP_CRB_DATA_XFER_SIZE_8 1
26 #define TPM_INTF_CAP_CRB_DATA_XFER_SIZE_32 2
27 #define TPM_INTF_CAP_CRB_DATA_XFER_SIZE_64 3
28 
29 #define TPM_INTF_SELECTOR_FIFO 0
30 #define TPM_INTF_SELECTOR_CRB 1
31 
32 struct tpm_intf {
33 	const char *name;
34 
35 	int (*init)(void **sc, struct tpm_emul *emul, void *emul_sc,
36 	    struct acpi_device *acpi_dev);
37 	void (*deinit)(void *sc);
38 	int (*build_acpi_table)(void *sc, struct vmctx *vm_ctx);
39 };
40 #define TPM_INTF_SET(x) DATA_SET(tpm_intf_set, x)
41