[lkml]   [2010]   [Sep]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [KVM timekeeping fixes 1/4] Fix kvmclock bug
    On Sat, Sep 18, 2010 at 02:38:12PM -1000, Zachary Amsden wrote:
    > If preempted after kvmclock values are updated, but before hardware
    > virtualization is entered, the last tsc time as read by the guest is
    > never set. It underflows the next time kvmclock is updated if there
    > has not yet been a successful entry / exit into hardware virt.
    > Fix this by simply setting last_tsc to the newly read tsc value so
    > that any computed nsec advance of kvmclock is nulled.
    > Signed-off-by: Zachary Amsden <>

    Applied, thanks.

     \ /
      Last update: 2010-09-20 17:45    [W:0.020 / U:1.440 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site