Re: [Qemu-devel] Can VMX provide real mode support?

[Luiz Capitulino]

On Wed, 21 Mar 2012 15:48:43 +0200
Avi Kivity <address@hidden> wrote:

> On 03/21/2012 03:40 PM, Jan Kiszka wrote:
> > On 2012-03-21 13:38, GaoYi wrote:
> > > Hi Jan,
> > > 
> > >     Since the newest Intel-VT supports the guest OS under the real mode, 
> > > which was already supported in AMD-V, can the VMX in the latest KVM 
> > > support that case?
> >
> > Yes, both with our without that "unrestricted guest" support (as Intel
> > called it), real mode will generally work. Without that CPU feature, I
> > think to recall that there were some limitations for big real mode, not
> > sure.
> >
> 
> Yes, big real mode will not work without "unrestricted guest".  There
> was some work to emulate it (module option emulate_invalid_guest_state),
> but it is not complete.

Can you provide a pointer for this? series?