| 1 | /* $Id: vbox-tpm.dsl 96407 2022-08-22 17:43:14Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VirtualBox ACPI - TPM ACPI device.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2021-2022 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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| 26 | */
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| 27 |
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| 28 | DefinitionBlock ("SSDT.aml", "SSDT", 1, "VBOX ", "VBOXTPMT", 2)
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| 29 | {
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| 30 | Scope (\_SB)
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| 31 | {
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| 32 | Device (TPM)
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| 33 | {
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| 34 | Method (_HID, 0, NotSerialized)
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| 35 | {
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| 36 | If (LEqual(IFID, One))
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| 37 | {
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| 38 | Return ("PNP0C31")
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| 39 | }
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| 40 | Else
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| 41 | {
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| 42 | Return ("MSFT0101")
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| 43 | }
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| 44 | }
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| 45 |
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| 46 | Method (_CID, 0, NotSerialized)
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| 47 | {
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| 48 | If (LEqual(IFID, One))
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| 49 | {
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| 50 | Return ("PNP0C31")
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| 51 | }
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| 52 | Else
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| 53 | {
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| 54 | Return ("MSFT0101")
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| 55 | }
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| 56 | }
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| 57 |
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| 58 | Method (_STR, 0, NotSerialized)
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| 59 | {
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| 60 | If (LEqual(IFID, One))
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| 61 | {
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| 62 | Return (Unicode ("TPM 1.2 Device"))
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| 63 | }
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| 64 | Else
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| 65 | {
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| 66 | Return (Unicode ("TPM 2.0 Device"))
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| 67 | }
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| 68 | }
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| 69 |
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| 70 | Method (_STA, 0, NotSerialized)
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| 71 | {
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| 72 | Return (0x0F)
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| 73 | }
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| 74 |
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| 75 | OperationRegion (TPMR, SystemMemory, 0xFED40000, 0x5000)
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| 76 | Field(TPMR, AnyAcc, NoLock, Preserve)
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| 77 | {
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| 78 | Offset(0x30),
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| 79 | IFID, 1,
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| 80 | }
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| 81 |
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| 82 | Name(RES, ResourceTemplate()
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| 83 | {
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| 84 | Memory32Fixed (ReadWrite, 0xfed40000, 0x5000, REG1)
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| 85 | })
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| 86 |
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| 87 | Method (_CRS, 0, Serialized)
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| 88 | {
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| 89 | Return (RES)
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| 90 | }
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| 91 | }
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| 92 | }
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| 93 | }
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| 94 |
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| 95 | /*
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| 96 | * Local Variables:
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| 97 | * comment-start: "//"
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| 98 | * End:
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| 99 | */
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| 100 |
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