Re: [Qemu-devel] [PATCH v3] vl.c: Support multiple CPU ranges on -numa option

[Paolo Bonzini]

Il 20/06/2013 13:34, Michael Tokarev ha scritto:
> 20.06.2013 13:52, Paolo Bonzini wrote:
>> Il 20/06/2013 11:30, Igor Mammedov ha scritto:
>>>>> libvirt uses the "cpus" option already, so we have to keep it working.
>>> Sure, we can leave it as it's now for some time while a new interface is
>>> introduced/adopted. And than later deprecate "cpus".
>>
>> So, you used a new name because the new behavior of "-numa
>> node,cpus=1-2,cpus=3-4" would be incompatible with the old.
> 
> BTW, as I tried to touch exactly the same place yesterday (trying
> to convert it to QemuOpts) -- what does this "node" mean?
> 
> For example, with
> 
>   -device [type=]devicetype,foo=bar,xzy=abc
> 
> this creates a new device for each "invocation" of option.  But
> what does this `-numa node' mean?  Can there be anything else
> besides node?  Why it is needed/used for?

Nothing, I think it's just that somebody took inspiration from "-device". :)

> This -numa option is the last one which uses the old option
> parsing mechanism (there's also some smbios-related thing
> but it's simple to convert, I almost got it ready yesterday),

That would be awesome.

Paolo