Re: [Qemu-devel] [PATCH] Make default invocation of block drivers safer

[Anthony Liguori]

On 07/14/2010 01:54 PM, Aurelien Jarno wrote:
> On Wed, Jul 14, 2010 at 08:43:11PM +0200, Christoph Hellwig wrote:
>    
> > Err, strong NACK.  Please don't start messing with the contents of the
> > data plane, we're getting into real trouble there.  It's perfectly
> > valid for a guest to create an image inside an image, and with hardware
> > support for nested virtualization I guess this use case will become
> > rather common, just as it already is on S/390 with VM.
> >
> >      
> Maybe it should only be done on the hard drive used to boot?
>    

It's just as dangerous on any other disk.  My use of "bootsector" in the 
code is probably misleading.

Regards,

Anthony Liguori