[libvirt] [PATCH] kvm 32bit guest on 64bit host

Gerd v. Egidy lists at egidy.de
Tue Jun 3 10:06:58 UTC 2008

Hi Dan,

> > Thanks for looking at my patch. I understand that KVM does not offer a
> > i686 host cpu but allows x86_64 and i686 guests.
> >
> > The reason for my patch was that I could not create i686 guests on a
> > x86_64 host with KVM, the only option offered was using qemu.
> Yes you can - just select the x86_64 option. It is refering to the *CPU*
> architecture that is virtualized, *not* the OS architecture. You can select
> x86_64 CPU and then install a i386 operating system just fine.

I'm using virt-manager to create a new vm. Virt-manager asks me "CPU 
architecture" and "Hypervisor". When I select i686 as CPU arch I can not 
select KVM as hypervisor, only qemu is offered.

If I understand you correctly, I should select x86_64 and KVM, even if I want 
to run a 32 bit OS, right?

Isn't that counter-intuitive?

Kind regards,


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