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    SubjectRe: is kexec on Xen domU possible?
    On Fri, Jul 19, 2013 at 07:58:40AM -0700, Brandon Philips wrote:
    > 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?

    No.

    > 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?

    No.

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

    Look for HVM or PVonHVM guests support in this providers.
    Sadly, there is no support for kexec on PV guests.

    Daniel


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