Re: [Xen-devel] [Xen-users] Purpose of mem-max command

[Daniel Kiper <daniel.kiper@xxxxxxxxxx>]

On Tue, Oct 13, 2015 at 11:55:09AM +0100, Ian Campbell wrote:
> [CCing Daniel]
>
> Daniel, please could you advice on which Xen releases, guest types and
> guest kernel versions are currently expected to work with memory hotplug.

Well... It worked, regardless of guest type, when it was introduced first time.
At that time xend was Xen toolstack. Than xl appeared on the scene and it 
stopped
working. I tried to fix it but I was diverted to something more important. Last
time David (CC-ed here) fixed some memory hotplug issues in Linux kernel (please
check for-linus-4.4 branch in 
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git
for more details). I suppose that he manged to overcome some xl deficiencies and
he will be able to shed some light what he did. If not or his work is not 
upstreamable
then I leave this on my TODO list. I hope that I will be able to work on this 
next
year. However, if somebody is up to this work I am able to mentor he/she or at
least review relevant patch series. Here are my old patches for xl:
http://lists.xen.org/archives/html/xen-devel/2013-04/msg03072.html This is 
really
old but I think it could be good starting point for further work.

Daniel

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