On Thu, 24 Jan 2019 13:59:35 +0100 Michael Mueller <mimu@xxxxxxxxxxxxx> wrote: > The Guest Information Block (GIB) links the GISA of all guests > that have adapter interrupts pending. These interrupts cannot be > delivered because all vcpus of these guests are currently in WAIT > state or have masked the respective Innterruption Sub Class (ISC). > If enabled, a GIB alert is issued on the host to schedule these > guests to run suitable vcpus to consume the pending interruptions. > > This mechanism allows to process adapter interrupts for currently > not running guests. > > The GIB is created during host initialization and associated with > the Adapter Interruption Facility in case an Adapter Interruption > Virtualization Facility is available. > > The GIB initialization and thus the activation of the related code > will be done in an upcoming patch of this series. > > Signed-off-by: Michael Mueller <mimu@xxxxxxxxxxxxx> > Reviewed-by: Janosch Frank <frankja@xxxxxxxxxxxxx> > Reviewed-by: Christian Borntraeger <borntraeger@xxxxxxxxxx> > Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx> > Reviewed-by: Pierre Morel <pmorel@xxxxxxxxxxxxx> I don't agree with the commit message to 100%, but I'd rather not start a discussion. Acked-by: Halil Pasic <pasic@xxxxxxxxxxxxx> [..]
