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Date: Mon, 7 Apr 2014 09:32:27 +0200
From: Igor Mammedov <imammedo@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH 00/35] pc: ACPI memory hotplug
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To: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: qemu-devel@nongnu.org

On Fri, 4 Apr 2014 17:57:28 +0100
"Dr. David Alan Gilbert" <dgilbert@redhat.com> wrote:

> * Igor Mammedov (imammedo@redhat.com) wrote:
> 
> <snip>
> 
> > This series allows to hotplug 'arbitrary' DIMM devices specifying size,
> > NUMA node mapping (guest side), slot and address where to map it, at runtime.
> 
> Some high level questions:
>   1) Is the intention that all guest RAM would be hot pluggable like this
>      (i.e. no memory would be allocated in the normal way)
Later, I plan to convert initial memory to DIMM devices as well, but only to not
hotpluggable ones so far for simplicity sake.

>   2) Does something stop it being invoked during a migration?
As far as I know, there is no checks to prevent any hotplug op during
migration. Considering how migration currently works, hotplug should be
disabled at migration time.

> 
> Dave
> --
> Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK