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Re: [Xen-devel] Announce: Xen userland for Windows PV drivers

To: AP Xen <apxeng@xxxxxxxxx>
Subject: Re: [Xen-devel] Announce: Xen userland for Windows PV drivers
From: Chris Smowton <cs448@xxxxxxxxx>
Date: Thu, 10 Jun 2010 22:38:04 +0100
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Would there normally be a userland interface to the balloon driver? My (admittedly cursory) impression was that ballooning was an act coordinated between the guest kernel and the hypervisor / control domain. That would make it a matter entirely of concern to James' drivers.

Looking at his Mercurial log, it seems he's been working on it just a few weeks ago -- see http://xenbits.xensource.com/ext/win-pvdrivers.hg?rev/aee3767c191d

Chris
Chris,

Does this have memory ballooning support?

Thanks,
AP

-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-
bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Chris Smowton
Sent: Thursday, June 10, 2010 12:21 PM
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Announce: Xen userland for Windows PV drivers

Hey all,

About 4-5 months ago, I wrote some userland libraries to go against
James Harper's PV drivers for Windows Xen guests
(http://wiki.xensource.com/xenwiki/XenWindowsGplPv). These provide a
Xenstore, event channel and userland page granting interface very
similar to those provided to Linux apps. I sent patches to James some
months ago, but hearing no feedback for some time I've pushed my
patches
to a Github repo.

If anyone's interested in the code, it can be found at
http://github.com/smowton/xen-pv-windows-evtchn

Any questions please email cs448@xxxxxxxxx

Chris

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