From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49248) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cooMi-0006JJ-IX for qemu-devel@nongnu.org; Fri, 17 Mar 2017 05:40:09 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cooMd-00015d-MN for qemu-devel@nongnu.org; Fri, 17 Mar 2017 05:40:08 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:52295 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cooMd-00014g-Fv for qemu-devel@nongnu.org; Fri, 17 Mar 2017 05:40:03 -0400 Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v2H9d0ip084950 for ; Fri, 17 Mar 2017 05:40:01 -0400 Received: from e31.co.us.ibm.com (e31.co.us.ibm.com [32.97.110.149]) by mx0b-001b2d01.pphosted.com with ESMTP id 297nkpdm8v-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Fri, 17 Mar 2017 05:40:01 -0400 Received: from localhost by e31.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 17 Mar 2017 03:40:00 -0600 Date: Fri, 17 Mar 2017 17:39:53 +0800 From: Dong Jia Shi References: <20170317031743.40128-1-bjsdjshi@linux.vnet.ibm.com> <20170317031743.40128-2-bjsdjshi@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Message-Id: <20170317093953.GP6839@bjsdjshi@linux.vnet.ibm.com> Subject: Re: [Qemu-devel] [PATCH v4 01/16] s390: cio: introduce cio_cancel_halt_clear List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Sebastian Ott Cc: Dong Jia Shi , kvm@vger.kernel.org, linux-s390@vger.kernel.org, qemu-devel@nongnu.org, renxiaof@linux.vnet.ibm.com, Cornelia Huck , borntraeger@de.ibm.com, agraf@suse.com, alex.williamson@redhat.com, pmorel@linux.vnet.ibm.com, pasic@linux.vnet.ibm.com, Peter Oberparleiter * Sebastian Ott [2017-03-17 10:26:51 +0100]: > On Fri, 17 Mar 2017, Dong Jia Shi wrote: > > For future code reuse purpose, this decouples the cio code with > > the ccw device specific parts from ccw_device_cancel_halt_clear, > > and makes a new common I/O interface named cio_cancel_halt_clear. > > What would the user of cio_cancel_halt_clear be? Hi Sebastian, We are trying to introduce a new I/O subchannel driver to enable usage of I/O subchannels via VFIO-CCW, so we can passthru a subchannel to a KVM guest. And that new vfio-ccw subchannel driver is the user. :> > > Sebastian -- Dong Jia