kvm-18

kvm-18

[Eildert Groeneveld]

Hello Folks
I am trying to get kvm going on my bleeding edge kubuntu system (feisty).

the normal apt-get install kvm does not work as the 2.6.20 kernel is missing
kvm-api-9 

So I grabbed kvm-18 source from sourceforge together with the kernel 
2.6.21-rc6

make etc works

but when starting kvm or qemu I get
g@eno:~/kvm$ /usr/local/bin/qemu . -no-acpi -hda winxp.img  -cdrom 
winxp.iso  -boot d -m 512
kvm kernel version too old
Could not initialize KVM, will disable KVM support

I somehow did manage to get the isntallation process going. However it seems 
that it is so slow that it is basically not operational. Also, the 
installation never really finished.


Question:
1. how do I know when kvm is using hardware virtualization (the only useful 
operational mode?)
2. how can I get kvm going given my setup?
   I tried kvm-16 on the 2.6.20-14 kernel. that compiled and installed ok
   Upon starting qemu no complaints about version being too old but it was
   slooooow (this is dual core 1.66GHz)

greetings

Eildert
-- 
Eildert Groeneveld
===================================================
Institute for Animal Breeding
Mariensee 31535 Neustadt Germany
Tel : (+49)(0)5034 871155 Fax : (+49)(0)5034 871239
e-mail: eildert.groeneveld-mbE8gMShV9A@public.gmane.org http://vce.tzv.fal.de/index.pl
http://www.tzv.fal.de/~eg/ http://apiis.tzv.fal.de/index.pl
===================================================

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Re: kvm-18

[Carsten Emde]

Eildert,
> I am trying to get kvm going on my bleeding edge kubuntu system (feisty).
> [..]
> but when starting kvm or qemu I get
> [..]
> kvm kernel version too old
> Could not initialize KVM, will disable KVM support
You preferably configure --prefix=/usr.
The command "make install" will then copy the modules to the 
/lib/modules/<version>/extra directory which gets searched first.
One of "modprobe kvm_intel" and "modprobe kvm_amd" will then load the 
newly produced modules.

Then start kvm, but fasten your seat belts first.

	--cbe

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Re: kvm-18

[Eildert Groeneveld]

On Friday 13 April 2007, Carsten Emde wrote:
> Eildert,
>
> > I am trying to get kvm going on my bleeding edge kubuntu system (feisty).
> > [..]
> > but when starting kvm or qemu I get
> > [..]
> > kvm kernel version too old
> > Could not initialize KVM, will disable KVM support
>
> You preferably configure --prefix=/usr.
> The command "make install" will then copy the modules to the
> /lib/modules/<version>/extra directory which gets searched first.
> One of "modprobe kvm_intel" and "modprobe kvm_amd" will then load the
> newly produced modules.
>
> Then start kvm, but fasten your seat belts first.
>
> 	--cbe

thanks for the response
even this suggestion does not prevent the kernel modules to be loaded first.
Anyway, I used insmod from the extra directory and it seems to load the right 
models. Now I also know when HW virtualzation is used: in the qemu frame it 
says QEMU/KVM, good.
It does start up much faster but then:

eg@eno:~/kvm$ /usr/bin/qemu . -hda kubuntu.img  -cdrom kubuntu.iso  -boot 
d  -m 512
exception 13 (0)
rax 000000000000001f rbx 000000000006dffe rcx 0000000000031c21 rdx 
0000000000031c02
rsi 000000000006dffe rdi 000000000004f661 rsp 0000000000007bd6 rbp 
000000000006dfe8
r8  0000000000000000 r9  0000000000000000 r10 0000000000000000 r11 
0000000000000000
r12 0000000000000000 r13 0000000000000000 r14 0000000000000000 r15 
0000000000000000
rip 0000000000001451 rflags 00033002
cs 4004 (00040040/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
ds 4004 (00040040/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
es 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
ss 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
fs 0080 (00000800/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
gs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
tr 0000 (20850000/00002088 p 1 dpl 0 db 0 s 0 type b l 0 g 0 avl 0)
ldt 0000 (00000000/0000ffff p 1 dpl 0 db 0 s 0 type 2 l 0 g 0 avl 0)
gdt 40620/f
idt 0/3ff
cr0 60000010 cr2 0 cr3 0 cr4 0 cr8 0 efer 0
Aborted
eg@eno:~/kvm$                                                         

any idea?

-- 
Eildert Groeneveld
===================================================
Institute for Animal Breeding
Mariensee 31535 Neustadt Germany
Tel : (+49)(0)5034 871155 Fax : (+49)(0)5034 871239
e-mail: eildert.groeneveld-mbE8gMShV9A@public.gmane.org http://vce.tzv.fal.de/index.pl
http://www.tzv.fal.de/~eg/ http://apiis.tzv.fal.de/index.pl
===================================================

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Re: kvm-18

[Dor Laor]

>On Friday 13 April 2007, Carsten Emde wrote:
>> Eildert,
>>
>> > I am trying to get kvm going on my bleeding edge kubuntu system
>(feisty).
>> > [..]
>> > but when starting kvm or qemu I get
>> > [..]
>> > kvm kernel version too old
>> > Could not initialize KVM, will disable KVM support
>>
>> You preferably configure --prefix=/usr.
>> The command "make install" will then copy the modules to the
>> /lib/modules/<version>/extra directory which gets searched first.
>> One of "modprobe kvm_intel" and "modprobe kvm_amd" will then load the
>> newly produced modules.
>>
>> Then start kvm, but fasten your seat belts first.
>>
>> 	--cbe
>
>thanks for the response
>even this suggestion does not prevent the kernel modules to be loaded
>first.
>Anyway, I used insmod from the extra directory and it seems to load the
>right
>models. Now I also know when HW virtualzation is used: in the qemu
frame it
>says QEMU/KVM, good.
>It does start up much faster but then:
>
>eg@eno:~/kvm$ /usr/bin/qemu . -hda kubuntu.img  -cdrom kubuntu.iso
-boot
>d  -m 512
>exception 13 (0)
>rax 000000000000001f rbx 000000000006dffe rcx 0000000000031c21 rdx
>0000000000031c02
>rsi 000000000006dffe rdi 000000000004f661 rsp 0000000000007bd6 rbp
>000000000006dfe8
>r8  0000000000000000 r9  0000000000000000 r10 0000000000000000 r11
>0000000000000000
>r12 0000000000000000 r13 0000000000000000 r14 0000000000000000 r15
>0000000000000000
>rip 0000000000001451 rflags 00033002
>cs 4004 (00040040/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
>ds 4004 (00040040/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
>es 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
>ss 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
>fs 0080 (00000800/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
>gs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
>tr 0000 (20850000/00002088 p 1 dpl 0 db 0 s 0 type b l 0 g 0 avl 0)
>ldt 0000 (00000000/0000ffff p 1 dpl 0 db 0 s 0 type 2 l 0 g 0 avl 0)
>gdt 40620/f
>idt 0/3ff
>cr0 60000010 cr2 0 cr3 0 cr4 0 cr8 0 efer 0
>Aborted
>eg@eno:~/kvm$
>
>any idea?
>

This seems like the known VT real-mode problem.
Cancel the graphical splash screen on the start and it will work fine.
In order to cancel it, run it with -no-kvm, change the settings and
re-run it normally.
Dor.

>--
>Eildert Groeneveld
>===================================================
>Institute for Animal Breeding
>Mariensee 31535 Neustadt Germany
>Tel : (+49)(0)5034 871155 Fax : (+49)(0)5034 871239
>e-mail: eildert.groeneveld-mbE8gMShV9A@public.gmane.org http://vce.tzv.fal.de/index.pl
>http://www.tzv.fal.de/~eg/ http://apiis.tzv.fal.de/index.pl
>===================================================
>
>-----------------------------------------------------------------------
--
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