From adbd050d70b6173dd6880b21fd6f995af5ea79d2 Mon Sep 17 00:00:00 2001

From: Jean Delvare <jdelvare@suse.de>

Date: Fri, 20 Jan 2017 17:26:02 +0100

Subject: [PATCH 19/19] biosdecode: Decode Intel Multiprocessor entry point

Decode the entry point defined in the Intel Multiprocessor

specification.

---

 CHANGELOG    |  5 +++++

 biosdecode.c | 34 +++++++++++++++++++++++++++++++++-

 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG b/CHANGELOG

index 67aef99..26a8f35 100644

--- a/CHANGELOG

+++ b/CHANGELOG

@@ -1,5 +1,10 @@

 2017-01-20  Jean Delvare  <jdelvare@suse.de>

+	* biosdecode.c: Decode the entry point defined in the Intel

+	  Multiprocessor specification.

+

+2017-01-20  Jean Delvare  <jdelvare@suse.de>

+

 	* dmidecode.c: Only decode one DMI table.

 	  This fixes Savannah bug #50022:

 	  https://savannah.nongnu.org/bugs/?50022

diff --git a/biosdecode.c b/biosdecode.c

index 3bbfe28..ad3d4bc 100644

--- a/biosdecode.c

+++ b/biosdecode.c

@@ -2,7 +2,7 @@

  * BIOS Decode

  *

  *   Copyright (C) 2000-2002 Alan Cox <alan@redhat.com>

- *   Copyright (C) 2002-2015 Jean Delvare <jdelvare@suse.de>

+ *   Copyright (C) 2002-2017 Jean Delvare <jdelvare@suse.de>

  *

  *   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

@@ -52,6 +52,9 @@

  *  - Fujitsu application panel technical details

  *    As of July 23rd, 2004

  *    http://apanel.sourceforge.net/tech.php

+ *  - Intel Multiprocessor Specification

+ *    Version 1.4

+ *    http://www.intel.com/design/archives/processors/pro/docs/242016.htm

  */

 #include <stdio.h>

@@ -546,6 +549,34 @@ static int fjkeyinf_decode(const u8 *p, size_t len)

 }

 /*

+ * Intel Multiprocessor

+ */

+

+static size_t mp_length(const u8 *p)

+{

+	return 16 * p[8];

+}

+

+static int mp_decode(const u8 *p, size_t len)

+{

+	if (!checksum(p, len))

+		return 0;

+

+	printf("Intel Multiprocessor present.\n");

+	printf("\tSpecification Revision: %s\n",

+		p[9] == 0x01 ? "1.1" : p[9] == 0x04 ? "1.4" : "Invalid");

+	if (p[11])

+		printf("\tDefault Configuration: #%d\n", p[11]);

+	else

+		printf("\tConfiguration Table Address: 0x%08X\n",

+			DWORD(p + 4));

+	printf("\tMode: %s\n", p[12] & (1 << 7) ?

+		"IMCR and PIC" : "Virtual Wire");

+

+	return 1;

+}

+

+/*

  * Main

  */

@@ -562,6 +593,7 @@ static struct bios_entry bios_entries[] = {

 	{ "32OS", 0, 0xE0000, 0xFFFFF, compaq_length, compaq_decode },

 	{ "\252\125VPD", 0, 0xF0000, 0xFFFFF, vpd_length, vpd_decode },

 	{ "FJKEYINF", 0, 0xF0000, 0xFFFFF, fjkeyinf_length, fjkeyinf_decode },

+	{ "_MP_", 0, 0xE0000, 0xFFFFF, mp_length, mp_decode },

 	{ NULL, 0, 0, 0, NULL, NULL }

 };

-- 

2.9.3