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Mon, 4 Oct 2021 09:25:31 +0000 (GMT) Received: from li-e979b1cc-23ba-11b2-a85c-dfd230f6cf82 (unknown [9.171.45.119]) by d06av21.portsmouth.uk.ibm.com (Postfix) with SMTP id 93E5952050; Mon, 4 Oct 2021 09:25:30 +0000 (GMT) Date: Mon, 4 Oct 2021 11:25:28 +0200 From: Halil Pasic To: Cornelia Huck Subject: Re: [RFC PATCH 1/1] virtio: write back features before verify Message-ID: <20211004112528.74442e52.pasic@linux.ibm.com> In-Reply-To: <87pmsl2rzd.fsf@redhat.com> References: <20210930012049.3780865-1-pasic@linux.ibm.com> <87r1d64dl4.fsf@redhat.com> <20210930130350.0cdc7c65.pasic@linux.ibm.com> <87ilyi47wn.fsf@redhat.com> <20211001162213.18d7375e.pasic@linux.ibm.com> <87v92g3h9l.fsf@redhat.com> <20211002082128-mutt-send-email-mst@kernel.org> <87pmsl2rzd.fsf@redhat.com> Organization: IBM X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: iSY6NboaJgOAOYom2ahH_CQcl1msSaq2 X-Proofpoint-ORIG-GUID: wcV1khcVsbws-U_qnZdOO6FoCTCcQvQO X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.391,FMLib:17.0.607.475 definitions=2021-10-04_02,2021-10-01_02,2020-04-07_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 mlxlogscore=999 spamscore=0 lowpriorityscore=0 impostorscore=0 priorityscore=1501 clxscore=1015 mlxscore=0 adultscore=0 phishscore=0 malwarescore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109230001 definitions=main-2110040063 Cc: linux-s390@vger.kernel.org, markver@us.ibm.com, "Michael S. Tsirkin" , linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, Halil Pasic , Xie Yongji , Christian Borntraeger X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" On Mon, 04 Oct 2021 09:01:42 +0200 Cornelia Huck wrote: > On Sat, Oct 02 2021, "Michael S. Tsirkin" wrote: > > > On Fri, Oct 01, 2021 at 05:18:46PM +0200, Cornelia Huck wrote: > >> I'd say we need a hack here so that we assume little-endian config space > >> if VERSION_1 has been offered; if your patch here works, I assume QEMU > >> does what we expect (assmuming little-endian as well.) I'm mostly > >> wondering what happens if you use a different VMM; can we expect it to > >> work similar to QEMU? > > > > Hard to say of course ... hopefully other VMMs are actually > > implementing the spec. E.g. IIUC rust vmm is modern only. > > Yes, I kind of hope they are simply doing LE config space accesses. > > Are there any other VMMs that are actually supported on s390x (or other > BE architectures)? > I think zCX (z/OS Container Extensions) is relevant as it uses virtio. That is all I know about. Regards, Halil _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization