Eric Van Hensbergen wrote:
> On 5/22/07, Avi Kivity <[EMAIL PROTECTED]> wrote:
>> Anthony Liguori wrote:
>> >>
>> >> In a PV environment why not just pass an initial cookie/hash/whatever
>> >> as a command-line argument/register/memory-space to the underlying
>> >> kernel?
>> >>
>> >
>> > You can't pass a command line argument to Windows (at least, not 
>> easily
>> > AFAIK).  You could get away with an MSR/CPUID flag but then you're
>> > relying on uniqueness which isn't guaranteed.
>> >
>>
>> In the general case, you can't pass a command line argument to Linux
>> either.  kvm doesn't boot Linux; it boots the bios, which boots the boot
>> sector, which boots grub, which boots Linux.  Relying on the user to
>> edit the command line in grub is wrong.
>>
>
> I didn't think we were talking about the general case, I thought we
> were discussing the PV case.

It is still useful to use PV drivers with full virtualization so it's 
something that ought to be considered.

Regards,

Anthony Liguori

>   In the PV case, having bios/bootloader
> is unnecessary overhead.  To that same end, I don't see Windows in the
> PV case unless they magically want to to coordinate PV standards with
> us, in which case we certainly can negotiate a more sane discovery
> mechanism.
>
>                -eric
>


-------------------------------------------------------------------------
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/
_______________________________________________
kvm-devel mailing list
kvm-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/kvm-devel

Reply via email to