From: Paolo Bonzini <pbonzini@redhat.com>
To: Alexander Graf <agraf@suse.de>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 1.3?] multiboot: fix e801 memory map
Date: Thu, 29 Nov 2012 20:40:45 +0100 [thread overview]
Message-ID: <50B7BA3D.5010600@redhat.com> (raw)
In-Reply-To: <9FB55746-DDB0-4E07-BF8D-46CC7A61A2F3@suse.de>
Il 29/11/2012 20:24, Alexander Graf ha scritto:
>> > It is in hw/multiboot.c:
>> >
>> > stl_p(bootinfo + MBI_MEM_LOWER, 640);
> You want to remove that one then.
I wasn't sure of what happens if the multiboot option ROM is old. Do we
support that to any extent?
> > Regarding the testcase, Xen will touch the EBDA without this patch and
> > with http://permalink.gmane.org/gmane.comp.emulators.xen.devel/144855.
> > However, SeaBIOS does not complain.
>
> I see :). Well, the patch is unintrusive enough for be ok for 1.3 IMHO.
Actually it's relatively easy to see a failure with Xen and a need to
PCI passthrough something with a bulky boot ROM; iSCSI or FC cards will
do. You'll need both the Xen patch above, and this patch to boot
successfully. Otherwise, it will fail to boot.
Paolo
next prev parent reply other threads:[~2012-11-29 19:40 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-29 17:11 [Qemu-devel] [PATCH 1.3?] multiboot: fix e801 memory map Paolo Bonzini
2012-11-29 17:11 ` [Qemu-devel] [PATCH] " Paolo Bonzini
2012-11-29 18:49 ` [Qemu-devel] [PATCH 1.3?] " Alexander Graf
2012-11-29 18:51 ` Alexander Graf
2012-11-29 19:21 ` Paolo Bonzini
2012-11-29 19:24 ` Alexander Graf
2012-11-29 19:40 ` Paolo Bonzini [this message]
2012-11-29 21:12 ` Anthony Liguori
2012-11-30 16:15 ` Anthony Liguori
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