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Re: [Qemu-devel] [libvirt] [PATCH] vl.c: Support multiple CPU ranges on
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [libvirt] [PATCH] vl.c: Support multiple CPU ranges on -numa option |
Date: |
Mon, 25 Feb 2013 13:54:25 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130219 Thunderbird/17.0.3 |
On 02/21/2013 01:57 PM, Eduardo Habkost wrote:
>>> Note that the following format, currently used by libvirt:
>>>
>>> -numa nodes,cpus=A,B,C,D
>>>
>>> will _not_ work yet, as "," is the option separator for the command-line
>>> option parser, and it will require changing the -numa option parsing
>>> code to handle "cpus" as a special case.
>>
>> No way.
>
> Agreed. :-)
>
> The bad news is that libvirt uses this format since forever, this format
> never worked, and nobody ever noticed that this was broken.
Well, libvirt just entered freeze for 1.0.3. I think the best course of
action on libvirt's side is to patch 1.0.3 to flat-out reject any cpumap
that cannot be represented in a syntax understood by qemu 1.4; then a
future libvirt can re-add support for whatever new syntax qemu 1.5 deems
as appropriate.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- [Qemu-devel] [PATCH] vl.c: Support multiple CPU ranges on -numa option, Eduardo Habkost, 2013/02/21
- Re: [Qemu-devel] [PATCH] vl.c: Support multiple CPU ranges on -numa option, Eduardo Habkost, 2013/02/21
- Re: [Qemu-devel] [PATCH] vl.c: Support multiple CPU ranges on -numa option, Markus Armbruster, 2013/02/26
- Re: [Qemu-devel] [PATCH] vl.c: Support multiple CPU ranges on -numa option, Eduardo Habkost, 2013/02/26
- Re: [Qemu-devel] [PATCH] vl.c: Support multiple CPU ranges on -numa option, Paolo Bonzini, 2013/02/26