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