Remove the explicit prefetch check when using vfio-ccw devices.
This check is not needed as all Linux channel programs are intended
to use prefetch and will be executed in the same way regardless.
Signed-off-by: Jared Rossi <jro...@linux.ibm.com>
---
hw/vfio/ccw.c | 13 +++----------
1 file changed, 3 insertions(+), 10 deletions(-)
diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c
index 50cc2ec75c..e649377b68 100644
--- a/hw/vfio/ccw.c
+++ b/hw/vfio/ccw.c
@@ -74,16 +74,9 @@ static IOInstEnding vfio_ccw_handle_request(SubchDev *sch)
struct ccw_io_region *region = vcdev->io_region;
int ret;
- if (!(sch->orb.ctrl0 & ORB_CTRL0_MASK_PFCH)) {
- if (!(vcdev->force_orb_pfch)) {
- warn_once_pfch(vcdev, sch, "requires PFCH flag set");
- sch_gen_unit_exception(sch);
- css_inject_io_interrupt(sch);
- return IOINST_CC_EXPECTED;
- } else {
- sch->orb.ctrl0 |= ORB_CTRL0_MASK_PFCH;
- warn_once_pfch(vcdev, sch, "PFCH flag forced");
- }
+ if (!(sch->orb.ctrl0 & ORB_CTRL0_MASK_PFCH) && vcdev->force_orb_pfch) {
+ sch->orb.ctrl0 |= ORB_CTRL0_MASK_PFCH;
+ warn_once_pfch(vcdev, sch, "PFCH flag forced");
}
QEMU_BUILD_BUG_ON(sizeof(region->orb_area) != sizeof(ORB));
--
2.21.1
