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From adbd050d70b6173dd6880b21fd6f995af5ea79d2 Mon Sep 17 00:00:00 2001
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From: Jean Delvare <jdelvare@suse.de>
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Date: Fri, 20 Jan 2017 17:26:02 +0100
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Subject: [PATCH 9/9] biosdecode: Decode Intel Multiprocessor entry point
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Decode the entry point defined in the Intel Multiprocessor
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specification.
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---
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CHANGELOG | 5 +++++
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biosdecode.c | 34 +++++++++++++++++++++++++++++++++-
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2 files changed, 38 insertions(+), 1 deletion(-)
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diff --git a/CHANGELOG b/CHANGELOG
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index 67aef99..26a8f35 100644
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--- a/CHANGELOG
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+++ b/CHANGELOG
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@@ -1,5 +1,10 @@
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2017-01-20 Jean Delvare <jdelvare@suse.de>
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+ * biosdecode.c: Decode the entry point defined in the Intel
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+ Multiprocessor specification.
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+
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+2017-01-20 Jean Delvare <jdelvare@suse.de>
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+
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* dmidecode.c: Only decode one DMI table.
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This fixes Savannah bug #50022:
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https://savannah.nongnu.org/bugs/?50022
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diff --git a/biosdecode.c b/biosdecode.c
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index 3bbfe28..ad3d4bc 100644
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--- a/biosdecode.c
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+++ b/biosdecode.c
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@@ -2,7 +2,7 @@
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* BIOS Decode
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*
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* Copyright (C) 2000-2002 Alan Cox <alan@redhat.com>
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- * Copyright (C) 2002-2015 Jean Delvare <jdelvare@suse.de>
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+ * Copyright (C) 2002-2017 Jean Delvare <jdelvare@suse.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@@ -52,6 +52,9 @@
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* - Fujitsu application panel technical details
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* As of July 23rd, 2004
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* http://apanel.sourceforge.net/tech.php
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+ * - Intel Multiprocessor Specification
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+ * Version 1.4
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+ * http://www.intel.com/design/archives/processors/pro/docs/242016.htm
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*/
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#include <stdio.h>
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@@ -546,6 +549,34 @@ static int fjkeyinf_decode(const u8 *p, size_t len)
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}
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/*
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+ * Intel Multiprocessor
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+ */
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+
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+static size_t mp_length(const u8 *p)
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+{
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+ return 16 * p[8];
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+}
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+
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+static int mp_decode(const u8 *p, size_t len)
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+{
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+ if (!checksum(p, len))
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+ return 0;
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+
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+ printf("Intel Multiprocessor present.\n");
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+ printf("\tSpecification Revision: %s\n",
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+ p[9] == 0x01 ? "1.1" : p[9] == 0x04 ? "1.4" : "Invalid");
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+ if (p[11])
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+ printf("\tDefault Configuration: #%d\n", p[11]);
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+ else
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+ printf("\tConfiguration Table Address: 0x%08X\n",
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+ DWORD(p + 4));
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+ printf("\tMode: %s\n", p[12] & (1 << 7) ?
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+ "IMCR and PIC" : "Virtual Wire");
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+
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+ return 1;
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+}
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+
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+/*
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* Main
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*/
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@@ -562,6 +593,7 @@ static struct bios_entry bios_entries[] = {
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{ "32OS", 0, 0xE0000, 0xFFFFF, compaq_length, compaq_decode },
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{ "\252\125VPD", 0, 0xF0000, 0xFFFFF, vpd_length, vpd_decode },
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{ "FJKEYINF", 0, 0xF0000, 0xFFFFF, fjkeyinf_length, fjkeyinf_decode },
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+ { "_MP_", 0, 0xE0000, 0xFFFFF, mp_length, mp_decode },
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{ NULL, 0, 0, 0, NULL, NULL }
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};
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--
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2.10.2
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