So if the VT already supports unrestricted guest, KVM can then runs such guest?
在 2012年3月25日 下午5:55，Avi Kivity <a...@redhat.com>写道： > On 03/23/2012 07:58 PM, Luiz Capitulino wrote: > > On Wed, 21 Mar 2012 15:48:43 +0200 > > Avi Kivity <a...@redhat.com> 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? > > It's merged (look for emulate_invalid_guest_state in vmx.c), just > incomplete. > > -- > error compiling committee.c: too many arguments to function > >
