Re: a xen question

[Anh Nguyen <nguyenminhanh@gmail.com>]

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Hi George,

I am interested in the xen-linux kernel for PV guests.

For HVM guests, I find it a bit difficult to pinpoint exactly what devices
are enabled because the ioemu-qemu-xen directory inside xen source seems to
contain a lot of code not used by xen.

Thanks,

On Thu, May 6, 2010 at 1:36 PM, George Dunlap
<George.Dunlap@eu.citrix.com>wrote:

> Ahn, the backends and frontends depends on which version of the kernel
> you're using.  Do you want to look at the pv-ops kernel (the long-term
> future), or the xen-linux kernel (a fork which will never make it
> as-is into Linux, but is ATM more widely used)?
>
> Stefano, which devices are enabled in qemu in our Xen tree?  Can you
> give Anh some pointers on how to find out which files correspond to
> those devices?  Thanks!
>
>  -George
>
> On Sun, May 2, 2010 at 12:47 AM, Anh Nguyen <nguyenminhanh@gmail.com>
> wrote:
> > Hi George,
> > I want to measure the size of Xen virtual devices (in term of lines of
> > code), for both HVM and PV guests. From what I learnt, Xen uses
> > Qemu daemon running in Dom 0 to emulate virtual devices for HVM guests.
> For
> > PV guests, backend devices in Dom 0 talks to frontend devices in Dom U.
> > I tried to post this question to xen-devel list but they did not go
> through.
> > I would really appreciate if you could help me to answer them, or point
> me
> > to the right direction:
> > 1. What devices are offered to Xen HVM guests, what about Xen PV guests?
> > 2. Where can I find the source code for those devices?
> > Thanks a lot,
> > Anh
> >
> > On Sat, May 1, 2010 at 5:18 PM, Sam King <kingst@uiuc.edu> wrote:
> >>
> >> Hi George,
> >>
> >> One of my students, Anh (included in this email), has some questions
> about
> >> Xen.  He has tried posting to the newsgroup without much luck, I was
> hoping
> >> that you could either answer his questions or point him in the right
> >> direction.
> >>
> >> Cheers,
> >> Sam
> >
> >
>

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