Re: [Qemu-devel] Re: KQemu require Intel VT or AMD-V processors ?

[Rick Vernam]

On Tuesday 13 November 2007 02:42:49 pm address@hidden wrote:
> Ok I see what went wrong.
> I accidentally had a XEN kernel still running so insmod did not work.
> Now it works and the message disappeared.
>
> But, kqemu is not much faster than qemu. I perceive about 1.5x over a
> 1gbit network  to a terminal through an x session.
> It is much much slower than win4lin, but it is free and
> I can live with it under most applications except streaming.
> Is there something I could have done wrong?
not necessarily wrong, but try qemu with the -kernel-kqemu command line 
option - ie, qemu -kernel-kqemu -hda WinXP_Home.img

>
> Server: Dual Opteron 1.6Ghz/16G SUN V20Z
> Terminal:  Mac Mini 1.6GHz
> Connected with 1Gbit network.
>
> Jan Jezabek wrote:
> > address@hidden wrote:
> >> Question 1) Does KQemu require Intel VT or AMD-V processors ?
> >>
> >> Question 2) Qemu runs and XP as guest is working on a Linux FC7 host.
> >>
> >> I installed kqemu from sources (kqemu-1.3.0pre11.tar.gz) and it
> >> configured/mak/make install without errors.
> >>
> >> However, when I e.g. start a VM, I still get the following error:
> >> qemu]# qemu -hda WinXP_Home.img
> >> Could not open '/dev/kqemu' - QEMU acceleration layer not activated
> >>
> >> So it seems that devices were never created. there is also no kqemu
> >> daemon or anything I can verify kqemu to be running.
> >> It is not in processes either.
> >>
> >> Maybe I misuunderstand how kqemu works, but usually it should be a
> >> daemon if it creates a device '/dev/kqemu' at installation !
> >>
> >> Any Ideas where I got the cat by the tail?
> >
> > KQEMU is a kernel module. You'll need to do
> >
> > /sbin/modprobe kqemu
> >
> > (as root) before you start QEMU. Then the warning will go away and
> > QEMU will be accelerated.
> >
> > Regards,
> > Jan Jezabek