From mboxrd@z Thu Jan  1 00:00:00 1970
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: xl cpu online/offline?
Date: Wed, 13 Jan 2016 10:40:47 -0500
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To: Andrew Cooper <andrew.cooper3@citrix.com>
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On Wed, Jan 13, 2016 at 03:15:20PM +0000, Andrew Cooper wrote:
> On 13/01/16 14:53, Konrad Rzeszutek Wilk wrote:
> > Hey,
> >
> > We have some libxc calls for onlining/offlining the CPU and they
> > are quite good for testing how well Xen behaves without say
> > doing an S3 suspend or such.
> >
> > It occurred to me that it would be nice to have them hook up in
> > libxl/xl but I am not exactly sure what the right command line would be?
> >
> > And whether you want to make it super-duper smart to be able to deal
> > with ranges or hex masks, etc (like xentrace does).
> >
> > Anyhow my first thought was:
> >
> >  xl cpu online/offline
> >
> > but most of the commands seem to follow one command per action, so perhaps:
> >
> >  xl cpu-online
> >  xl cpu-offline
> >
> > ? 
> 
> Merging the xen-hptool functionality into xl would be a good improvement.
> 
> It uses:
> andrewcoop@andrewcoop:~$ ssh idol xen-hptool

/me nods. 

> xen-hptool: Xen CPU/memory hotplug tool
> Usage: xen-hptool <command> [args]
> Commands:
>   help                     display this help
>   cpu-online    <cpuid>    online CPU <cpuid>
>   cpu-offline   <cpuid>    offline CPU <cpuid>
>   mem-online    <mfn>      online MEMORY <mfn>
>   mem-offline   <mfn>      offline MEMORY <mfn>
>   mem-status    <mfn>      query Memory status<mfn>
> 
> ~Andrew