[SeaBIOS] [RFC PATCH v3 00/19] ACPI memory hotplug

Vasilis Liaskovitis vasilis.liaskovitis at profitbricks.com
Thu Nov 1 10:01:19 CET 2012

On Wed, Oct 31, 2012 at 01:16:56PM +0200, Avi Kivity wrote:
> On 10/31/2012 12:58 PM, Stefan Hajnoczi wrote:
> > On Fri, Sep 21, 2012 at 1:17 PM, Vasilis Liaskovitis
> > <vasilis.liaskovitis at profitbricks.com> wrote:
> >> This is v3 of the ACPI memory hotplug functionality. Only x86_64 target is supported
> >> for now.
> > 
> > Hi Vasilis,
> > Regarding the hot unplug issue we've been discussing, it's possible to
> > progress this patch series without fully solving that problem upfront.
> > 
> > Karen Noel suggested that the series could be rolled without the hot
> > unplug command, so that it's not possible to hit the unsafe case.
> > This would allow users to hot plug additional memory.  They would have
> > to use virtio-balloon to reduce the memory footprint again.  Later,
> > when the memory region referencing issue has been solved the hot
> > unplug command can be added.
> > 
> > Just wanted to mention Karen's idea in case you feel stuck right now.
> We could introduce hotunplug as an experimental feature so people can
> test and play with it, and later graduate it to a fully supported feature.

ok, I 'll separate hotplug and hotunplug patches for next version of the
patchseries (maybe even offer hotunplug in a separate series)


- Vasilis

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