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/** @file
Macro and type definitions corresponding to the QEMU TPM interface.
Refer to "docs/specs/tpm.txt" in the QEMU source directory.
Copyright (C) 2018, Red Hat, Inc.
Copyright (c) 2018, IBM Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef __QEMU_TPM_H__
#define __QEMU_TPM_H__
#include <Base.h>
//
// whether function is blocked by BIOS settings; bits 0, 1, 2
//
#define QEMU_TPM_PPI_FUNC_NOT_IMPLEMENTED (0 << 0)
#define QEMU_TPM_PPI_FUNC_BIOS_ONLY (1 << 0)
#define QEMU_TPM_PPI_FUNC_BLOCKED (2 << 0)
#define QEMU_TPM_PPI_FUNC_ALLOWED_USR_REQ (3 << 0)
#define QEMU_TPM_PPI_FUNC_ALLOWED_USR_NOT_REQ (4 << 0)
#define QEMU_TPM_PPI_FUNC_MASK (7 << 0)
//
// The following structure is shared between firmware and ACPI.
//
#pragma pack (1)
typedef struct {
UINT8 Func[256]; // func
UINT8 In; // ppin
UINT32 Ip; // ppip
UINT32 Response; // pprp
UINT32 Request; // pprq
UINT32 RequestParameter; // pprm
UINT32 LastRequest; // lppr
UINT32 FRet; // fret
UINT8 Res1[0x40]; // res1
UINT8 NextStep; // next_step
} QEMU_TPM_PPI;
#pragma pack ()
//
// The following structure is for the fw_cfg etc/tpm/config file.
//
#pragma pack (1)
typedef struct {
UINT32 PpiAddress;
UINT8 TpmVersion;
UINT8 PpiVersion;
} QEMU_FWCFG_TPM_CONFIG;
#pragma pack ()
#define QEMU_TPM_VERSION_UNSPEC 0
#define QEMU_TPM_VERSION_1_2 1
#define QEMU_TPM_VERSION_2 2
#define QEMU_TPM_PPI_VERSION_NONE 0
#define QEMU_TPM_PPI_VERSION_1_30 1
#endif
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