From: Gleb Natapov <gleb@redhat.com>
To: Kevin O'Connor <kevin@koconnor.net>
Cc: Stefan Hajnoczi <stefanha@gmail.com>,
seabios@seabios.org, Avi Kivity <avi@redhat.com>,
kvm@vger.kernel.org, qemu-devel@nongnu.org
Subject: [Qemu-devel] Re: [SeaBIOS] [PATCHv2] Support for booting from virtio disks
Date: Tue, 11 May 2010 15:47:40 +0300 [thread overview]
Message-ID: <20100511124740.GN2504@redhat.com> (raw)
In-Reply-To: <20100511124529.GA14189@morn.localdomain>
On Tue, May 11, 2010 at 08:45:29AM -0400, Kevin O'Connor wrote:
> On Tue, May 11, 2010 at 10:04:25AM +0100, Stefan Hajnoczi wrote:
> > From what I can tell SeaBIOS is reading CMOS_BIOS_BOOTFLAG1 and
> > CMOS_BIOS_BOOTFLAG2 from non-volatile memory. The values index into
> > bev[], which contains IPL entries (the drives).
> >
> > Is the order of bev[] entries well-defined? Is there a way for QEMU
> > command-line to know that the first virtio-blk device corresponds to x
> > and the IDE CD-ROM corresponds to y?
>
> SeaBIOS arranges for bev[0] = floppy, bev[1] = hd, bev[2] = cdrom, and
> bev[3] to be the first network card - it does this so that the boot
> order can be read from qemu. However, it's a pain to force this
> order.
>
What if there are more then one disk?
--
Gleb.
next prev parent reply other threads:[~2010-05-11 12:47 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-10 8:11 [Qemu-devel] [PATCHv2] Support for booting from virtio disks Gleb Natapov
2010-05-10 8:25 ` [Qemu-devel] " Stefan Hajnoczi
2010-05-10 8:29 ` Gleb Natapov
2010-05-10 15:48 ` Anthony Liguori
2010-05-10 15:54 ` Gleb Natapov
2010-05-10 15:58 ` Anthony Liguori
2010-05-10 16:09 ` Gleb Natapov
2010-05-13 16:49 ` [Qemu-devel] Re: [SeaBIOS] " Avi Kivity
2010-05-16 8:28 ` Gleb Natapov
2010-05-11 8:19 ` [Qemu-devel] " Avi Kivity
2010-05-11 9:04 ` Stefan Hajnoczi
2010-05-11 12:33 ` Gleb Natapov
2010-05-11 12:45 ` [Qemu-devel] Re: [SeaBIOS] " Kevin O'Connor
2010-05-11 12:47 ` Gleb Natapov [this message]
2010-05-12 0:44 ` Kevin O'Connor
2010-05-11 12:31 ` [Qemu-devel] " Gleb Natapov
2010-05-12 7:22 ` Avi Kivity
2010-05-12 7:55 ` Gleb Natapov
2010-05-12 12:57 ` Kevin O'Connor
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