diff options
author | Jordan Crouse <jordan@cosmicpenguin.net> | 2008-11-11 19:51:14 +0000 |
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committer | Jordan Crouse <jordan.crouse@amd.com> | 2008-11-11 19:51:14 +0000 |
commit | 6c6e4333c4ef8a86e70e14fcff57a5747339b165 (patch) | |
tree | e22f3aaf38fb241263176e7ac7817141c01a7eaf /payloads/libpayload/libc/sysinfo.c | |
parent | 3b6c527322259d6ae7878411ca26ee6dd9374b3c (diff) | |
download | coreboot-6c6e4333c4ef8a86e70e14fcff57a5747339b165.tar.xz |
[PATCH] Add sysinfo_have_multiboot function
Add a new infrastructure for returning system information to payloads.
First up - a pointer to the multiboot table.
Signed-off-by: Jordan Crouse <jordan@cosmicpenguin.net>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3743 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'payloads/libpayload/libc/sysinfo.c')
-rw-r--r-- | payloads/libpayload/libc/sysinfo.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/payloads/libpayload/libc/sysinfo.c b/payloads/libpayload/libc/sysinfo.c new file mode 100644 index 0000000000..73a9ab5539 --- /dev/null +++ b/payloads/libpayload/libc/sysinfo.c @@ -0,0 +1,39 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <libpayload.h> +#include <sysinfo.h> + +extern struct sysinfo_t lib_sysinfo; + +int sysinfo_have_multiboot(unsigned long *addr) +{ + *addr = (unsigned long) lib_sysinfo.mbtable; + return (lib_sysinfo.mbtable == 0) ? 0 : 1; +} |