[lkml]   [2012]   [Mar]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH 0/2 v3] kvm: notify host when guest panicked
    On 03/13/2012 08:44 AM, Wen Congyang wrote:
    > At 03/12/2012 06:33 PM, Avi Kivity Wrote:
    > > On 03/12/2012 11:04 AM, Wen Congyang wrote:
    > >> Do you have any other comments about this patch?
    > >>
    > >
    > > Not really, but I'm not 100% convinced the patch is worthwhile. It's
    > > likely to only be used by Linux, which has kexec facilities, and you can
    > > put talk to management via virtio-serial and describe the crash in more
    > > details than a simple hypercall.
    > Hmm, can we use virtio-serial to talk with not-linux OS? I guess the answer
    > is no. If so, virtio-serial is also used by linux.

    You can use virtio-serial with any guest that has a driver. There are
    drivers available for Windows.

    > Another problem is: virtio-serial is available on many deployed versions
    > but the guest must have virtio-serial device. So we cannot know the guest
    > is panicked if it does not have virtio-serial device while the hypercall does
    > not depend on any device.

    The hypercall implementation must exist in the hypervisor.

    virtio-serial is used by the guest agent, so it's likely to be
    availalble in all cloud or data center deployments.

    error compiling committee.c: too many arguments to function

     \ /
      Last update: 2012-03-13 09:57    [W:0.019 / U:5.464 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site