From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53080) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fsCNw-0000lN-Cy for qemu-devel@nongnu.org; Tue, 21 Aug 2018 15:32:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fsCNp-0007hu-Tu for qemu-devel@nongnu.org; Tue, 21 Aug 2018 15:32:12 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:40768 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 1fsCNo-0007fv-6n for qemu-devel@nongnu.org; Tue, 21 Aug 2018 15:32:05 -0400 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w7LJTUm0030863 for ; Tue, 21 Aug 2018 15:32:03 -0400 Received: from e33.co.us.ibm.com (e33.co.us.ibm.com [32.97.110.151]) by mx0b-001b2d01.pphosted.com with ESMTP id 2m0pp6njpp-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 21 Aug 2018 15:32:02 -0400 Received: from localhost by e33.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 21 Aug 2018 13:32:02 -0600 Reply-To: jjherne@linux.ibm.com References: <1530811543-6881-1-git-send-email-jjherne@linux.ibm.com> <20180815134844.55722b47.cohuck@redhat.com> From: "Jason J. Herne" Date: Tue, 21 Aug 2018 15:31:55 -0400 MIME-Version: 1.0 In-Reply-To: <20180815134844.55722b47.cohuck@redhat.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Message-Id: Subject: Re: [Qemu-devel] [RFC 00/15] s390: vfio-ccw dasd ipl support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Cornelia Huck Cc: qemu-devel@nongnu.org, qemu-s390x@nongnu.org, pasic@linux.ibm.com, bjsdjshi@linux.ibm.com, borntraeger@de.ibm.com On 08/15/2018 07:48 AM, Cornelia Huck wrote: > On Thu, 5 Jul 2018 13:25:28 -0400 > "Jason J. Herne" wrote: > >> This is to support booting from vfio-ccw dasd devices. We basically implement >> the real hardware ipl procedure. This allows for booting Linux guests on >> vfio-ccw devices. >> >> vfio-ccw's channel program prefetch algorithm complicates ipl because most ipl >> channel programs dynamically modify themselves. Details on the ipl process and >> how we worked around this issue can be found in docs/devel/s390-dasd-ipl.txt. > > Cleaning up my mail backlog... I think there were some comments; will > there be a new version forthcoming? > Yes there will. We're hitting a hang now and not sure if it is a device, configuration or coding problem. Once I get that cleared up I'll be back for round #2. -- -- Jason J. Herne (jjherne@linux.ibm.com)