Re: [Xen-devel] [PATCH 6/6] xl: allow specified domain id to be used for create, restore and migrate

["Durrant, Paul" <pdurrant@xxxxxxxxxx>]

> -----Original Message-----
> From: Ian Jackson <ian.jackson@xxxxxxxxxx>
> Sent: 02 January 2020 17:30
> To: Durrant, Paul <pdurrant@xxxxxxxxxx>
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx; Wei Liu <wl@xxxxxxx>
> Subject: Re: [PATCH 6/6] xl: allow specified domain id to be used for
> create, restore and migrate
> 
> Paul Durrant writes ("[PATCH 6/6] xl: allow specified domain id to be used
> for create, restore and migrate"):
> > This patch adds the option to use a specified domain id to be used for
> > the create, restore and migrate lifecycle operations and documentation
> > thereof.
> 
> I approve of the idea that the xl user can specify the domid.  But:
> 
> Why should this be a command line argument to xl, rather than a domain
> config parameter ?  Obviously there needs to be a way to override the
> choice, especially to make localhost migration work, but there is
> already a way to specify extra config on domain create, at least.
> 

I debated which was best and came down on the side of a command line parameter 
becase I thought that chances of an admin wanting to tie a cfg to specified 
domid was small. But I guess the cfg can already specify a name, which needs to 
be overridden on a per-creation basis if an admin wants to use a common 
'template' cfg... so maybe that option is indeed more consistent.

  Paul

> Thanks,
> Ian.

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