On Tue, 5 May 2020 14:57:57 +0200 Eric Farman <far...@linux.ibm.com> wrote:
> From: Farhan Ali <al...@linux.ibm.com> > > The crw region can be used to obtain information about > Channel Report Words (CRW) from vfio-ccw driver. > > Currently only channel-path related CRWs are passed to > QEMU from vfio-ccw driver. > > Signed-off-by: Farhan Ali <al...@linux.ibm.com> > Signed-off-by: Eric Farman <far...@linux.ibm.com> > --- > > Notes: > v3->v4: > - Merge region patch into IRQ patch [CH] > - Rework the testing/clearing notifier and reading region [CH] > > v2->v3: > - Remove "size==0" check in CRW notifier [CH] > - Remove intermediate rsc/erc variables, use css_queue_crw_cont() [CH] > - s/crw0/crw/ [CH] > > v1->v2: > - Add a loop to continually read region while data is > present, queueing CRWs as found [CH] > > v0->v1: [EF] > - Fixed copy/paste error in error message (s/schib/CRW) > - Check vcdev->crw_region before registering the irq, > in case host kernel does not have matching support > - Split the refactoring changes to an earlier (new) patch > (and don't remove the "num_irqs" check in the register > routine, but adjust it to the check the input variable) > - Don't revert the cool vfio_set_irq_signaling() stuff > - Unregister CRW IRQ before IO IRQ in unrealize > - s/crw1/crw0/ > > hw/vfio/ccw.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 73 insertions(+) > Reviewed-by: Cornelia Huck <coh...@redhat.com>
