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Tsirkin" To: David Hildenbrand Subject: Re: [PATCH v1] virtio-mem-pci: force virtio version 1 Message-ID: <20200727074404-mutt-send-email-mst@kernel.org> References: <20200708143619.38743-1-david@redhat.com> <2a7d938b-cd30-4598-b151-d16dc0a2f46b@redhat.com> MIME-Version: 1.0 In-Reply-To: <2a7d938b-cd30-4598-b151-d16dc0a2f46b@redhat.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=205.139.110.61; envelope-from=mst@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/27 01:46:13 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Cornelia Huck , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Mon, Jul 27, 2020 at 01:42:56PM +0200, David Hildenbrand wrote: > On 22.07.20 16:22, David Hildenbrand wrote: > > On 08.07.20 16:36, David Hildenbrand wrote: > >> Let's force virtio version 1. While at it, use qdev_realize() to set > >> the parent bus and realize - like most other virtio-*-pci > >> implementations. > >> > >> Fixes: 0b9a2443a48b ("virtio-pci: Proxy for virtio-mem") > >> Cc: Cornelia Huck > >> Cc: "Michael S. Tsirkin" > >> Signed-off-by: David Hildenbrand > >> --- > >> hw/virtio/virtio-mem-pci.c | 4 ++-- > >> 1 file changed, 2 insertions(+), 2 deletions(-) > >> > >> diff --git a/hw/virtio/virtio-mem-pci.c b/hw/virtio/virtio-mem-pci.c > >> index 1a8e854123..831022aa86 100644 > >> --- a/hw/virtio/virtio-mem-pci.c > >> +++ b/hw/virtio/virtio-mem-pci.c > >> @@ -21,8 +21,8 @@ static void virtio_mem_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) > >> VirtIOMEMPCI *mem_pci = VIRTIO_MEM_PCI(vpci_dev); > >> DeviceState *vdev = DEVICE(&mem_pci->vdev); > >> > >> - qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); > >> - object_property_set_bool(OBJECT(vdev), true, "realized", errp); > >> + virtio_pci_force_virtio_1(vpci_dev); > >> + qdev_realize(vdev, BUS(&vpci_dev->bus), errp); > >> } > >> > >> static void virtio_mem_pci_set_addr(MemoryDeviceState *md, uint64_t addr, > >> > > > > Ping @mst > > > > With Conny's patches in, simple virtio-mem examples currently fail with > > qemu-system-x86_64: -device > virtio-mem-pci,id=vm0,memdev=mem0,node=0,requested-size=300M: device is > modern-only, use disable-legacy=on > > So we really want this in QEMU 5.1 > > -- > Thanks, > > David / dhildenb That's something to note in the commit log btw. -- MST