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Add an SSDT ACPI table for the TPM device. Add a TCPA table for BIOS logging area when a TPM is being used. The latter follows this spec here: http://www.trustedcomputinggroup.org/files/static_page_files/DCD4188E-1A4B-B294-D050A155FB6F7385/TCG_ACPIGeneralSpecification_PublicReview.pdf This patch has Michael Tsirkin's patches folded in. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
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/* | ||
* This program is free software; you can redistribute it and/or modify | ||
* it under the terms of the GNU General Public License as published by | ||
* the Free Software Foundation; either version 2 of the License, or | ||
* (at your option) any later version. | ||
* This program is distributed in the hope that it will be useful, | ||
* but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
* GNU General Public License for more details. | ||
* You should have received a copy of the GNU General Public License along | ||
* with this program; if not, see <http://www.gnu.org/licenses/>. | ||
*/ | ||
#include "hw/acpi/tpm.h" | ||
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ACPI_EXTRACT_ALL_CODE ssdt_tpm_aml | ||
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DefinitionBlock ( | ||
"ssdt-tpm.aml", // Output Filename | ||
"SSDT", // Signature | ||
0x01, // SSDT Compliance Revision | ||
"BXPC", // OEMID | ||
"BXSSDT", // TABLE ID | ||
0x1 // OEM Revision | ||
) | ||
{ | ||
Scope(\_SB) { | ||
/* TPM with emulated TPM TIS interface */ | ||
Device (TPM) { | ||
Name (_HID, EisaID ("PNP0C31")) | ||
Name (_CRS, ResourceTemplate () | ||
{ | ||
Memory32Fixed (ReadWrite, TPM_TIS_ADDR_BASE, TPM_TIS_ADDR_SIZE) | ||
// older Linux tpm_tis drivers do not work with IRQ | ||
//IRQNoFlags () {TPM_TIS_IRQ} | ||
}) | ||
Method (_STA, 0, NotSerialized) { | ||
Return (0x0F) | ||
} | ||
} | ||
} | ||
} |
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/* | ||
* tpm.h - TPM ACPI definitions | ||
* | ||
* Copyright (C) 2014 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. | ||
* | ||
* Implementation of the TIS interface according to specs found at | ||
* http://www.trustedcomputinggroup.org | ||
* | ||
*/ | ||
#ifndef HW_ACPI_TPM_H | ||
#define HW_ACPI_TPM_H | ||
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#define TPM_TIS_ADDR_BASE 0xFED40000 | ||
#define TPM_TIS_ADDR_SIZE 0x5000 | ||
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#define TPM_TIS_IRQ 5 | ||
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#define TPM_LOG_AREA_MINIMUM_SIZE (64 * 1024) | ||
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#define TPM_TCPA_ACPI_CLASS_CLIENT 0 | ||
#define TPM_TCPA_ACPI_CLASS_SERVER 1 | ||
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#endif /* HW_ACPI_TPM_H */ |
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