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Re: [Xen-devel] gdbsx?

To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] gdbsx?
From: Mukesh Rathor <mukesh.rathor@xxxxxxxxxx>
Date: Wed, 03 Sep 2008 15:57:10 -0700
Cc: Xen Developers <xen-devel@xxxxxxxxxxxxxxxxxxx>, Jun Koi <junkoi2004@xxxxxxxxx>
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>Mukesh: Could you explain a bit the advantage of gdbsx over the
>current implementation that is already in tree? I figured out some,
>but still might miss some. That is not very clear from the slides.

I've not used the current implementation in the tree so can't compare.
The main reason for gdbsx is because we use 32bit dom0 on 64bit hypervisor,
and I couldn't get libxc to support that after a lot of effort.

What I can tell you about gdbsx is, it's a clean, simplified, lightweight
implementation, that relies on the hyp for most of the work with minimal
changes. It supports all guests, PV or HVM, 32bit or 64bit.

Keir Fraser wrote:
> On 1/9/08 17:15, "Jun Koi" <junkoi2004@xxxxxxxxx> wrote:
> It has some chance, if it is used and if it is cleanly implemented. Equally
> for now it ought to be able to live quite happily outside of the main
> repository.
>  -- Keir

gdbsx currently works on 32bit dom0 running on 64bit hyp, hence, probably
not ready for the main repo. OTOH, kdb is getting there....


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