Commit ea2dd691 authored by Halil Pasic's avatar Halil Pasic Committed by Cornelia Huck
Browse files

vfio-ccw: remove orb.c64 (64 bit data addresses) check 



The vfio-ccw module does the check too, and there is actually no
technical obstacle for supporting fmt 1 idaws. Let us be ready for the
beautiful day when fmt 1 idaws become supported by the vfio-ccw kernel
module. QEMU does not have to do a thing for that, except not insisting
on this check.

Signed-off-by: default avatarHalil Pasic <pasic@linux.ibm.com>
Acked-by: default avatarJason J. Herne <jjherne@linux.ibm.com>
Tested-by: default avatarJason J. Herne <jjherne@linux.ibm.com>
Message-Id: <20180524175828.3143-3-pasic@linux.ibm.com>
Signed-off-by: default avatarCornelia Huck <cohuck@redhat.com>
parent 9a51c9ee

hw/s390x/css.c

+0 −11
Original line number Diff line number Diff line
@@ -1199,17 +1199,6 @@ static IOInstEnding sch_handle_start_func_passthrough(SubchDev *sch) 
        assert(orb != NULL);

        p->intparm = orb->intparm;

    }



    /*

     * Only support prefetch enable mode.

     * Only support 64bit addressing idal.

     */

    if (!(orb->ctrl0 & ORB_CTRL0_MASK_C64)) {

        warn_report("vfio-ccw requires PFCH and C64 flags set");

        sch_gen_unit_exception(sch);

        css_inject_io_interrupt(sch);

        return IOINST_CC_EXPECTED;

    }

    return s390_ccw_cmd_request(sch);

}