Re: KVM Nested L2 guest startup problems

From: Bandan Das
Date: Fri May 02 2014 - 14:39:25 EST


Hu Yaohui <loki2441@xxxxxxxxx> writes:

> On Fri, May 2, 2014 at 11:52 AM, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote:
>> Il 02/05/2014 17:17, Hu Yaohui ha scritto:
>>
>>> Hi Paolo,
>>> I have tried L0 with linux kernel 3.14.2 and L1 with linux kernel 3.14.2
>>> L1 QEMU qemu-1.7.0
>>> L2 QEMU qemu-1.7.0.
>>
>>
>> Do you mean L0 and L1?
> Yes.
>>
>> What is your QEMU command line, and what is the processor? Also, what guest
>> you are running?
>>
> L0 host
> - Debian 7 with linux kernel 3.14.2
> - 24 pCPU, 120G pMEM
> - cpu mode: Intel(R) Xeon(R) CPU E5-2620 v2 @ 2.10GHz

Ivy Bridge-EP ? Looks similar to
https://bugzilla.kernel.org/show_bug.cgi?id=73331

Just out of curiosity, any difference if you run with ept=0 ?

> - QEMU command line of L1
> $ sudo qemu-system-x86_64 -machine accel=kvm -drive
> file=vdisk.img,if=virtio -m 4096 -smp 10 -net
> nic,model=virtio,macaddr=52:54:00:12:34:80 -cpu kvm64,+vmx -net
> tap,ifname=qtap0,script=no,downscript=no -vnc :2
>
> L1 guest
> - Ubuntu 10.04 with linux kernel 3.14.2
> - QEMU command line of L2
> $qemu-system-x86_64 -machine accel=kvm -smp 2 -boot c -drive
> file=/home/nested/vmdisks/vdisk1-virtnet.img,if=virtio -m 2048 -vnc :4
> -net nic,model=virtio,macaddr=52:54:00:12:34:90 -net
> tap,ifname=qtap0,script=no,downscript=no
>
> L2 guest
> - Ubuntu 10.04 with linux kernel 2.6.32
>> Paolo
>>
>>
>>> I still get the same error when running qemu in L1 guest.
>>
>>
> --
> To unsubscribe from this list: send the line "unsubscribe kvm" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/