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Violators will be prosecuted; Mon, 12 Sep 2016 12:00:37 +0100 X-IBM-Helo: d06dlp02.portsmouth.uk.ibm.com X-IBM-MailFrom: cornelia.huck@de.ibm.com X-IBM-RcptTo: qemu-devel@nongnu.org Received: from b06cxnps3075.portsmouth.uk.ibm.com (d06relay10.portsmouth.uk.ibm.com [9.149.109.195]) by d06dlp02.portsmouth.uk.ibm.com (Postfix) with ESMTP id 0EA082190056 for ; Mon, 12 Sep 2016 11:59:58 +0100 (BST) Received: from d06av04.portsmouth.uk.ibm.com (d06av04.portsmouth.uk.ibm.com [9.149.37.216]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u8CB0aDo25231572 for ; Mon, 12 Sep 2016 11:00:36 GMT Received: from d06av04.portsmouth.uk.ibm.com (localhost [127.0.0.1]) by d06av04.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u8CB0Y0L028490 for ; Mon, 12 Sep 2016 05:00:36 -0600 Received: from gondolin.boeblingen.de.ibm.com (dyn-9-152-224-137.boeblingen.de.ibm.com [9.152.224.137]) by d06av04.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id u8CB0VeS028118 (version=TLSv1/SSLv3 cipher=AES256-SHA256 bits=256 verify=NO); Mon, 12 Sep 2016 05:00:34 -0600 From: Cornelia Huck To: qemu-devel@nongnu.org Date: Mon, 12 Sep 2016 13:00:26 +0200 X-Mailer: git-send-email 2.9.3 In-Reply-To: <20160912110028.32265-1-cornelia.huck@de.ibm.com> References: <20160912110028.32265-1-cornelia.huck@de.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16091211-0028-0000-0000-00000212D387 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16091211-0029-0000-0000-00002045189F Message-Id: <20160912110028.32265-4-cornelia.huck@de.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-09-12_06:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1609020000 definitions=main-1609120171 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PATCH 3/5] virtio-ccw: respond to READ_STATUS command X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Cornelia Huck , borntraeger@de.ibm.com, jfrei@linux.vnet.ibm.com, Pierre Morel , agraf@suse.de Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Pierre Morel This patch adds the response to the READ_STATUS CCW command. Signed-off-by: Pierre Morel Signed-off-by: Cornelia Huck --- hw/s390x/virtio-ccw.c | 20 ++++++++++++++++++++ hw/s390x/virtio-ccw.h | 1 + 2 files changed, 21 insertions(+) diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c index a554a24..ad90792 100644 --- a/hw/s390x/virtio-ccw.c +++ b/hw/s390x/virtio-ccw.c @@ -455,6 +455,26 @@ static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw) } } break; + case CCW_CMD_READ_STATUS: + if (check_len) { + if (ccw.count != sizeof(status)) { + ret = -EINVAL; + break; + } + } else if (ccw.count < sizeof(status)) { + /* Can't execute command. */ + ret = -EINVAL; + break; + } + if (!ccw.cda) { + ret = -EFAULT; + } else { + address_space_stb(&address_space_memory, ccw.cda, vdev->status, + MEMTXATTRS_UNSPECIFIED, NULL); + sch->curr_status.scsw.count = ccw.count - sizeof(vdev->status);; + ret = 0; + } + break; case CCW_CMD_WRITE_STATUS: if (check_len) { if (ccw.count != sizeof(status)) { diff --git a/hw/s390x/virtio-ccw.h b/hw/s390x/virtio-ccw.h index 1c6bc86..86bdd6c 100644 --- a/hw/s390x/virtio-ccw.h +++ b/hw/s390x/virtio-ccw.h @@ -42,6 +42,7 @@ #define CCW_CMD_SET_IND 0x43 #define CCW_CMD_SET_CONF_IND 0x53 #define CCW_CMD_READ_VQ_CONF 0x32 +#define CCW_CMD_READ_STATUS 0x72 #define CCW_CMD_SET_IND_ADAPTER 0x73 #define CCW_CMD_SET_VIRTIO_REV 0x83