From: Yinghai Lu <yhlu.kernel@gmail.com>
To: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, Yinghai Lu <yhlu.kernel@gmail.com>,
Bernhard Walle <bwalle@suse.de>, Vivek Goyal <vgoyal@redhat.com>,
"Eric W. Biederman" <ebiederm@xmission.com>
Subject:
Date: Sun, 24 Aug 2008 15:43:15 -0700 [thread overview]
Message-ID: <1219617795-9774-1-git-send-email-yhlu.kernel@gmail.com> (raw)
may need user to have new kexec tools that could create e820 table
from /sys/firmware/memmap instead of /proc/iomem for second kernel
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Bernhard Walle <bwalle@suse.de>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Index: linux-2.6/arch/x86/kernel/e820.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/e820.c
+++ linux-2.6/arch/x86/kernel/e820.c
@@ -1279,6 +1279,10 @@ void __init e820_reserve_resources(void)
res = alloc_bootmem_low(sizeof(struct resource) * e820.nr_map);
for (i = 0; i < e820.nr_map; i++) {
+ if (e820.map[i].type != E820_RAM) {
+ res++;
+ continue;
+ }
end = e820.map[i].addr + e820.map[i].size - 1;
#ifndef CONFIG_RESOURCES_64BIT
if (end > 0x100000000ULL) {
reply other threads:[~2008-08-24 22:44 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1219617795-9774-1-git-send-email-yhlu.kernel@gmail.com \
--to=yhlu.kernel@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=bwalle@suse.de \
--cc=ebiederm@xmission.com \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=tglx@linutronix.de \
--cc=vgoyal@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox