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Date: Fri, 19 Jul 2013 07:58:40 -0700
Message-ID: <CAK7GKxnB933DkO8qM6HxZCbDVNn4ze5Ere7ZWnXxBieYMg88dQ@mail.gmail.com>
Subject: Re: is kexec on Xen domU possible?
From: Brandon Philips <brandon@ifup.org>
To: Daniel Kiper <daniel.kiper@oracle.com>
Cc: Greg KH <gregkh@linuxfoundation.org>,
        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
        Eric Biederman <ebiederm@xmission.com>, linux-kernel@vger.kernel.org,
        xen-devel@lists.xensource.com,
        virtualization@lists.linux-foundation.org
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On Fri, Jul 19, 2013 at 6:18 AM, Daniel Kiper <daniel.kiper@oracle.com> wrote:
>   - PV guests: there is no support for kexec at this time;
>     Once I wrote an implementatation for that type of guests
>     for one company but according to our agreement I could not
>     publish this code; However, I could use it as a base for
>     publicly available kexec implementation; Currently, I do
>     not have any plans to work on this due to some more important
>     stuff to do; However, question about kexec support for PV
>     guests is raised from time to time and maybe this issue
>     will be much more important than others once,

To do kexec on PV guests is there a dependency on support from the dom0?

e.g. if we recreated your patches and merged them into 3.12 and booted
on a XenServer from a few years ago would it work?

What I want to do is use kexec on existing public cloud providers,
that use Xen, like AWS or Rackspace.

Thanks,

Brandon
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