From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:45806) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h0qOH-0005Js-4a for qemu-devel@nongnu.org; Mon, 04 Mar 2019 11:24:33 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1h0qOG-0001x4-Bq for qemu-devel@nongnu.org; Mon, 04 Mar 2019 11:24:33 -0500 Date: Mon, 4 Mar 2019 17:24:23 +0100 From: Cornelia Huck Message-ID: <20190304172423.482162ab.cohuck@redhat.com> In-Reply-To: <1551466776-29123-1-git-send-email-jjherne@linux.ibm.com> References: <1551466776-29123-1-git-send-email-jjherne@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v3 00/16] s390: vfio-ccw dasd ipl support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Jason J. Herne" Cc: qemu-devel@nongnu.org, qemu-s390x@nongnu.org, pasic@linux.ibm.com, alifm@linux.ibm.com, borntraeger@de.ibm.com, Thomas Huth On Fri, 1 Mar 2019 13:59:20 -0500 "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. > > Note to Connie: In the v2 review you mentioned some issues with the error > handling code involving printing of the eckd dasd sense data. I've addressed > those concerns in a new patch just to make those changes clearly stand out from > the rest of the code. I can squash them into patches 10, 11, and 15 if you > prefer that to having it as a separate patch. Whatever makes sense... but I'll let the s390 bios maintainers decide. Speaking of which: Please do keep Thomas on cc:... [This is probably a bit late for 4.0, as softfreeze is next Tuesday and pull requests for master need to be on-list by then... speaking of pull requests: I'd prefer to queue this via a pull request from the bios maintainers rather than picking the patches myself, if possible.]