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[Xen-devel] Re: [PATCH R4 0/7] xen/balloon: Memory hotplug support for X

To: Daniel Kiper <dkiper@xxxxxxxxxxxx>
Subject: [Xen-devel] Re: [PATCH R4 0/7] xen/balloon: Memory hotplug support for Xen balloon driver
From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Date: Wed, 9 Mar 2011 14:01:25 +0000
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On Tue, 8 Mar 2011, Daniel Kiper wrote:
> Hi,
> I am sending next version of memory hotplug
> support for Xen balloon driver patch. It applies
> to Linus' git tree, v2.6.38-rc8 tag. Most of
> suggestions were taken into account. Thanks for
> everybody who tested and/or sent suggestions
> to my work.
> There are a few prerequisite patches which fixes
> some problems found during work on memory hotplug
> patch or add some futures which are needed by
> memory hotplug patch.
> Full list of fixes/futures:
>   - xen/balloon: Removal of driver_pages,
>   - xen/balloon: HVM mode support,
>   - xen/balloon: Migration from mod_timer() to schedule_delayed_work(),
>   - xen/balloon: Protect against CPU exhaust by event/x process,
>   - xen/balloon: Minor notation fixes,
>   - mm: Extend memory hotplug API to allow memory hotplug in virtual guests,
>   - xen/balloon: Memory hotplug support for Xen balloon driver.
> Additionally, I suggest to apply patch prepared by Steffano Stabellini
> (https://lkml.org/lkml/2011/1/31/232) which fixes memory management
> issue in Xen guest. I was not able boot guest machine without
> above mentioned patch.

after some discussions we came up with a different approach to fix the
issue; I sent a couple of patches a little while ago:


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