Re: [PATCH 07/28] kvm tools: Move 'kvm__recommended_cpus' to arch-specific code

Alexander Graf
2011-12-07T15:58:57Z

On 07.12.2011, at 16:25, Sasha Levin <levinsasha928@gmail.com> wrote:

> On Wed, 2011-12-07 at 16:00 +0100, Alexander Graf wrote:
>> On 07.12.2011, at 15:25, Avi Kivity <avi@redhat.com> wrote:
>>
>>> On 12/07/2011 04:22 PM, Sasha Levin wrote:
>>>> On Wed, 2011-12-07 at 16:11 +0200, Avi Kivity wrote:
>>>>> On 12/07/2011 10:29 AM, Sasha Levin wrote:
>>>>>> I also got another one, but it's **completely untested** (not even
>>>>>> compiled). Alex, Matt, any chance one of you can loan a temporary ppc
>>>>>> shell for the upcoming tests of KVM tool/ppc KVM?
>>>>>>
>>>>>
>>>>> qemu offers free ppc shells
>>>>
>>>> qemu would let me nest a guest inside a ppc guest on my x86?
>>>
>>> On supervisor mode only (trap-and-emulate virtualization); I don't think
>>> qemu emulates ppc hypervisor mode.
>>
>> Yup, that should work for PR KVM. I'm not sure Matt's patches work in that mode though.
>>
>> So you should be able to run qemu-system-ppc64 -M pseries -nographic to emulate a ppc box and then do the same in the guest with -enable-kvm.
>>
>> If that works, you can try with kvm tool in the first guest :).
>
> Tried that, got the following (qemu-kvm-1.0 on qemu-kvm.git):
>
> LINK ppc64-softmmu/qemu-system-ppc64
> ../libhw64/i8259.o: In function `kvm_i8259_set_irq':
> /root/work/src/qemu-kvm/hw/i8259.c:707: undefined reference to `apic_set_irq_delivered'
> ../libhw64/i8259.o: In function `pic_read_irq':
> /root/work/src/qemu-kvm/hw/i8259.c:240: undefined reference to `timer_acks'
> /root/work/src/qemu-kvm/hw/i8259.c:241: undefined reference to `timer_ints_to_push'
> collect2: ld returned 1 exit status
> make[1]: *** [qemu-system-ppc64] Error 1
> make: *** [subdir-ppc64-softmmu] Error 2
>
> What am I doing wrong?

You're probably using the wrong tree :). The qemu-kvm fork used to work a while back, but I don't autotest it. Try again with

git://git.qemu.org/qemu.git

and make sure to have libfdt installed :)

Alex

>