Re: [kvm-devel] Windows PV driver for KVM

[Jiang, Y. <yun...@in...>]

Hi, Dor, I just checked the URL and seems it is not updated still,
willyou update it?

-- Yunhong Jiang

Dor Laor <mailto:dor...@qu...> wrote:
> On Wed, 2008-05-07 at 21:17 +0800, Jiang, Yunhong wrote:
>> Avi Kivity <mailto:av...@qu...> wrote:
>>> Jiang, Yunhong wrote:
>>>> I noticed there is a windows PV driver based on virtIO in
>>>> http://sourceforge.net/project/showfiles.php?group_id=180599
>>>> 
>>>> But when I enable the driver in guest, the guest will hang. I'm
using
>>>> changeset around April, 18. Since the driver is created in March, I
>>>> assume the changeset in Apri should be ok.
>>>> 
>>>> Are there any special action needed to enable the PV driver in
windows?
>>>> Have anyone tried it recently?
>>>> 
>>> 
>>> We are using it in production.  What HAL is the guest using?  Are
you
>>> running with smp?
>> 
>> The HAL is ACPI multipprocessor PC.
>> It is a UP guest. But I do notice one thing strange. When I use
device
>> manager->Processors, I see a lot of CPU listed. But it is really a UP
>> system and I can only get one cpu in the task manager->performance
>> window. Not sure if that's the reason of the hang.
>> 
> 
> We just fixed an smp bug for virtio (also triggered by single
processor
> with ACPI multiprocessor HAL). We'll publish a new binary tomorrow.
> 
> The reason you see multiple cpus although there is only one is that we
> expose the maximum number in the bios. The system is actually uses the
> required number so this behavior is ok.
> 
> 
>> -- Yunhong Jiang
>> 
>>> 
>>> --
>>> Any sufficiently difficult bug is indistinguishable from a feature.
>> 
>> 
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