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

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

[admin]

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?

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

[Jan Jezabek]

admin@mmri.us 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

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

[admin]

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?

Server: Dual Opteron 1.6Ghz/16G SUN V20Z
Terminal:  Mac Mini 1.6GHz
Connected with 1Gbit network.



Jan Jezabek wrote:
> admin@mmri.us 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
>
>
>
>
>

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

[Rick Vernam]

On Tuesday 13 November 2007 02:42:49 pm admin@mmri.us 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:
> > admin@mmri.us 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

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

[admin]

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[Qemu-devel] qemu & samba

[admin]

This should be my last post, thanks all for the kind help until 
users-group is active again.

I have samba servers running and they work as other windows clients use 
them, but qemu/kqemu seemingly do not support samba.
I can remeber something along those lines in Howtos read quite a while 
ago, but I read manuals for about 5 VM's so it might have been for Xen 
or something else.

Question: Is there a way to get samba working or must I resign to use 
Cygwin/ssh for all file transfers to the Linux NFS volumes?
or
Is there any other way to access nfs volumes without reverting to 
sftp/ssh clients like gftp et al?