On 04/02/2012 11:58 PM, Jan Kiszka wrote:
> On 2012-04-02 23:55, Gilles Chanteperdrix wrote:
>> On 04/02/2012 10:59 PM, Jan Kiszka wrote:
>>> On 2012-04-02 22:56, Jan Kiszka wrote:
>>>>> No luck, I am using qemu 0.12.5, there is no -global option documented,
>>>>
>>>> Err, that's prehistoric. Use stable 1.0.x at least to receive proper
>>>> HPET support.
>>>
>>> Oh, and there is one further pitfall: You need to provide
>>> -no-kvm-irqchip to use the HPET with MSI support because qemu-kvm does
>>> not forward those MSIs to the kernel irqchip model. I'm sitting on
>>> patches...
>>
>> Yes, I needed that. It works now, except that I could not find how to
>> use an NFS root filesystem. But with an ext3 file-backed filesystem, I
>> could get that:
>
> If your NFS server runs on the host and you use userspace networking
> (default without additional parameters), the guest should be able to
> reach the server under 10.0.2.2 and use an IP like 10.0.2.15 (or dhcp).
> However, I recently failed to get this working as well but didn't dig
> deeper.
Well, with -net user, I do not get any network interface on the
simulated kernel. Maybe there a special network driver to enable in the
kernel? The documentation does not say which network card is simulated,
and I do not see any with lspci.
Something else, is it possible to run kvm using SCHED_FIFO policy? I
tried that and I almost got a lockup, was probably saved by throttling.
--
Gilles.
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