From patchwork Fri Mar 17 03:19:28 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dong Jia Shi X-Patchwork-Id: 9629671 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0316A60132 for ; Fri, 17 Mar 2017 03:29:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E616228632 for ; Fri, 17 Mar 2017 03:29:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DACDE28679; Fri, 17 Mar 2017 03:29:39 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8A4E428632 for ; Fri, 17 Mar 2017 03:29:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751801AbdCQD3i (ORCPT ); Thu, 16 Mar 2017 23:29:38 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:57797 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751389AbdCQD3h (ORCPT ); Thu, 16 Mar 2017 23:29:37 -0400 Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v2H3J9lF051008 for ; Thu, 16 Mar 2017 23:20:14 -0400 Received: from e32.co.us.ibm.com (e32.co.us.ibm.com [32.97.110.150]) by mx0a-001b2d01.pphosted.com with ESMTP id 297yvb9scw-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Thu, 16 Mar 2017 23:20:14 -0400 Received: from localhost by e32.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 16 Mar 2017 21:20:12 -0600 Received: from b03cxnp08026.gho.boulder.ibm.com (9.17.130.18) by e32.co.us.ibm.com (192.168.1.132) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Thu, 16 Mar 2017 21:20:09 -0600 Received: from b03ledav004.gho.boulder.ibm.com (b03ledav004.gho.boulder.ibm.com [9.17.130.235]) by b03cxnp08026.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v2H3K7Vs11338082; Thu, 16 Mar 2017 20:20:08 -0700 Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D95FF78043; Thu, 16 Mar 2017 21:20:07 -0600 (MDT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTP id 00C8D78041; Thu, 16 Mar 2017 21:20:05 -0600 (MDT) From: Dong Jia Shi To: kvm@vger.kernel.org, linux-s390@vger.kernel.org, qemu-devel@nongnu.org Cc: bjsdjshi@linux.vnet.ibm.com, renxiaof@linux.vnet.ibm.com, cornelia.huck@de.ibm.com, borntraeger@de.ibm.com, agraf@suse.com, alex.williamson@redhat.com, pmorel@linux.vnet.ibm.com, pasic@linux.vnet.ibm.com Subject: [PATCH v4 11/11] vfio/ccw: update sense data if a unit check is pending Date: Fri, 17 Mar 2017 04:19:28 +0100 X-Mailer: git-send-email 2.8.4 In-Reply-To: <20170317031928.40189-1-bjsdjshi@linux.vnet.ibm.com> References: <20170317031928.40189-1-bjsdjshi@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 17031703-0004-0000-0000-000011CB0AAE X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00006796; HX=3.00000240; KW=3.00000007; PH=3.00000004; SC=3.00000206; SDB=6.00834931; UDB=6.00410082; IPR=6.00612586; BA=6.00005215; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00014684; XFM=3.00000013; UTC=2017-03-17 03:20:11 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17031703-0005-0000-0000-00007DE13979 Message-Id: <20170317031928.40189-12-bjsdjshi@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-03-17_01:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1702020001 definitions=main-1703170026 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Concurrent-sense data is currently not delivered. This patch stores the concurrent-sense data to the subchannel if a unit check is pending and the concurrent-sense bit is enabled. Then a TSCH can retreive the right IRB data back to the guest. Signed-off-by: Dong Jia Shi --- hw/vfio/ccw.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c index 00ab285..b9e365a 100644 --- a/hw/vfio/ccw.c +++ b/hw/vfio/ccw.c @@ -94,6 +94,7 @@ static void vfio_ccw_io_notifier_handler(void *opaque) CcwDevice *ccw_dev = CCW_DEVICE(cdev); SubchDev *sch = ccw_dev->sch; SCSW *s = &sch->curr_status.scsw; + PMCW *p = &sch->curr_status.pmcw; IRB irb; if (!event_notifier_test_and_clear(&vcdev->io_notifier)) { @@ -133,6 +134,12 @@ static void vfio_ccw_io_notifier_handler(void *opaque) /* Update control block via irb. */ copy_scsw_to_guest(s, &irb.scsw); + /* If a uint check is pending, copy sense data. */ + if ((s->dstat & SCSW_DSTAT_UNIT_CHECK) && + (p->chars & PMCW_CHARS_MASK_CSENSE)) { + memcpy(sch->sense_data, irb.ecw, sizeof(irb.ecw)); + } + read_err: css_inject_io_interrupt(sch); }