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Re: [Qemu-devel] Re: qdev property bug?
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] Re: qdev property bug? |
Date: |
Mon, 14 Dec 2009 22:36:03 +0200 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
On Mon, Dec 14, 2009 at 10:34:28PM +0200, Michael S. Tsirkin wrote:
> On Mon, Dec 14, 2009 at 09:32:30PM +0100, Gerd Hoffmann wrote:
> > On 12/14/09 21:20, Michael S. Tsirkin wrote:
> >>> So far, it's not clear to me that anyone has demonstrated how this is
> >>> harmful for people that don't want pxe booting. Assuming we fix the bug
> >>> about rom loading, then there's really no impact to users.
> >
> > Fix (v2) is on the list already.
> >
> >> PXE booting might have security impact. You do not want to
> >> do this if you are on a hostile network.
> >
> > Option rom loaded doesn't imply pxe boot will be tried. It only means
> > PXE boot can be selected, either via
> >
> > -boot order=[something with 'n' here]
> >
> > or via
> >
> > -boot menu=on + F12 + picking menu entry
> >
> > By default qemu doesn't try to PXE-boot, even if no other bootable
> > device is available.
> >
> > cheers,
> > Gerd
>
> I guess so. But then, why are we loading it in BIOS
> and wasting memory? Let's only shadow the ROM
> when PXE is selected?
Or, we could have a very small ROM, that loads
more actual code from card or from qemu directly
when it is run.
>
> --
> MST
- Re: [Qemu-devel] Re: qdev property bug?, (continued)
- Re: [Qemu-devel] Re: qdev property bug?, Anthony Liguori, 2009/12/14
- Re: [Qemu-devel] Re: qdev property bug?, Michael S. Tsirkin, 2009/12/14
- Re: [Qemu-devel] Re: qdev property bug?, Anthony Liguori, 2009/12/14
- Re: [Qemu-devel] Re: qdev property bug?, Michael S. Tsirkin, 2009/12/14
- Re: [Qemu-devel] Re: qdev property bug?, Gerd Hoffmann, 2009/12/14
- Re: [Qemu-devel] Re: qdev property bug?, Michael S. Tsirkin, 2009/12/14
- Re: [Qemu-devel] Re: qdev property bug?,
Michael S. Tsirkin <=
- Re: [Qemu-devel] Re: qdev property bug?, Anthony Liguori, 2009/12/14
- Re: [Qemu-devel] Re: qdev property bug?, Michael S. Tsirkin, 2009/12/14
- Proper support for PCI-based option rom loading (was Re: [Qemu-devel] Re: qdev property bug?), Anthony Liguori, 2009/12/14
- Re: Proper support for PCI-based option rom loading (was Re: [Qemu-devel] Re: qdev property bug?), Kevin O'Connor, 2009/12/14
- Re: Proper support for PCI-based option rom loading (was Re: [Qemu-devel] Re: qdev property bug?), Kevin O'Connor, 2009/12/14
- Re: Proper support for PCI-based option rom loading (was Re: [Qemu-devel] Re: qdev property bug?), Anthony Liguori, 2009/12/15
- Re: Proper support for PCI-based option rom loading (was Re: [Qemu-devel] Re: qdev property bug?), Anthony Liguori, 2009/12/15
- Re: [SeaBIOS] Proper support for PCI-based option rom loading (was Re: [Qemu-devel] Re: qdev property bug?), Avi Kivity, 2009/12/15
- Re: [SeaBIOS] Proper support for PCI-based option rom loading (was Re: [Qemu-devel] Re: qdev property bug?), Anthony Liguori, 2009/12/15
- Re: [SeaBIOS] Proper support for PCI-based option rom loading (was Re: [Qemu-devel] Re: qdev property bug?), Kevin OConnor, 2009/12/15