Re: gcc + kvm + 64 bit ? confused :-/

Andi Kleen
2007-07-11T10:54:13Z

On Wed, Jul 11, 2007 at 11:43:26AM +0200, Benjamin Budts wrote:
> I'm a bit confused using the -march=xxx options for gcc when using a
> kernel virtual machine...
> Getting errors on smp when using the -march=nocoma for gcc... possibly

What errors?

> because smp is not fully supported yet I suppse.
>
> I guess my question is, when installing kvm, is the virtual machine 64
> bit capable or should I install 32 bit OS ?
>
> I installed an amd64 debian image and it seems to be running
> fine...except for the problem mentioned above.
>
> And what type of architecture do i have to mention with gcc in a kvm ?
> march ... arch...

The same as the host or generic cpu if you're not sure.

-Andi