From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59317) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dmdEJ-0002mi-NA for qemu-devel@nongnu.org; Tue, 29 Aug 2017 05:54:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dmdEE-00079a-PN for qemu-devel@nongnu.org; Tue, 29 Aug 2017 05:54:43 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:46421) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dmdEE-00079G-HA for qemu-devel@nongnu.org; Tue, 29 Aug 2017 05:54:38 -0400 Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v7T9sYsU115150 for ; Tue, 29 Aug 2017 05:54:36 -0400 Received: from e32.co.us.ibm.com (e32.co.us.ibm.com [32.97.110.150]) by mx0a-001b2d01.pphosted.com with ESMTP id 2cn4e6n5ar-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Tue, 29 Aug 2017 05:54:34 -0400 Received: from localhost by e32.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 29 Aug 2017 03:53:41 -0600 References: <1503907487-2764-1-git-send-email-zyimin@linux.vnet.ibm.com> <1503907487-2764-5-git-send-email-zyimin@linux.vnet.ibm.com> <20170828175722.0b54b59a.cohuck@redhat.com> <498a00ca-ea1a-ae09-0772-4a25c729841e@linux.vnet.ibm.com> <20170829100746.66c47fd8.cohuck@redhat.com> <0d7cc071-cebe-82d5-90da-9737a5f0733e@linux.vnet.ibm.com> <20170829113353.0a13f88a.cohuck@redhat.com> <20170829114920.48eb459b.cohuck@redhat.com> From: Yi Min Zhao Date: Tue, 29 Aug 2017 17:53:35 +0800 MIME-Version: 1.0 In-Reply-To: <20170829114920.48eb459b.cohuck@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Message-Id: Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] [PATCH 4/4] s390x/pci: add iommu replay callback List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Cornelia Huck Cc: qemu-devel@nongnu.org, borntraeger@de.ibm.com, pasic@linux.vnet.ibm.com, pmorel@linux.vnet.ibm.com, agraf@suse.de, richard.henderson@linaro.org =E5=9C=A8 2017/8/29 =E4=B8=8B=E5=8D=885:49, Cornelia Huck =E5=86=99=E9=81= =93: > On Tue, 29 Aug 2017 11:33:53 +0200 > Cornelia Huck wrote: > >> My question was whether virtio-pci works with your patches on top at >> all - last time I checked on master, virtio-pci devices failed to >> realize with a "msi-x is mandatory" message. > Just checked again, I still get > > qemu-system-s390x: -device virtio-rng-pci: MSI-X support is mandatory i= n the S390 architecture > > Any clue to what is missing? > > virtio-rng-pci doesn't support msix. But msix is required on s390 arch. So we avoid plugging any pci device without msix support.