From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45439) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fGZ8j-0000gD-5u for qemu-devel@nongnu.org; Wed, 09 May 2018 20:09:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fGZ8f-0006h5-LA for qemu-devel@nongnu.org; Wed, 09 May 2018 20:08:57 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:33658) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fGZ8f-0006gn-CS for qemu-devel@nongnu.org; Wed, 09 May 2018 20:08:53 -0400 Received: from pps.filterd (m0098409.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w4A04UN5114761 for ; Wed, 9 May 2018 20:08:52 -0400 Received: from e06smtp14.uk.ibm.com (e06smtp14.uk.ibm.com [195.75.94.110]) by mx0a-001b2d01.pphosted.com with ESMTP id 2hv643m4nk-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 09 May 2018 20:08:52 -0400 Received: from localhost by e06smtp14.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 10 May 2018 01:08:50 +0100 From: Halil Pasic Date: Thu, 10 May 2018 02:07:12 +0200 In-Reply-To: <20180510000712.6472-1-pasic@linux.ibm.com> References: <20180510000712.6472-1-pasic@linux.ibm.com> Message-Id: <20180510000712.6472-3-pasic@linux.ibm.com> Subject: [Qemu-devel] [PATCH 2/2] vfio-ccw: remove orb.c64 (64 bit data addresses) check List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Cornelia Huck , qemu-s390x@nongnu.org, qemu-devel@nongnu.org Cc: Halil Pasic , Dong Jia Shi , "Jason J. Herne" , Pierre Morel 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: Halil Pasic Acked-by: Jason J. Herne Tested-by: Jason J. Herne --- hw/s390x/css.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/hw/s390x/css.c b/hw/s390x/css.c index 32f1b2820d..1554b4c2f5 100644 --- a/hw/s390x/css.c +++ b/hw/s390x/css.c @@ -1191,17 +1191,6 @@ 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); } -- 2.16.3