From patchwork Tue Dec 5 03:33:12 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wang, Wei W" X-Patchwork-Id: 10092039 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 3ECCA60348 for ; Tue, 5 Dec 2017 03:51:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 321872879C for ; Tue, 5 Dec 2017 03:51:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2702E29457; Tue, 5 Dec 2017 03:51:10 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 92C9D2879C for ; Tue, 5 Dec 2017 03:51:09 +0000 (UTC) Received: from localhost ([::1]:46244 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eM4GC-0001Ph-R3 for patchwork-qemu-devel@patchwork.kernel.org; Mon, 04 Dec 2017 22:51:08 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33265) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eM4Er-0001Np-Ot for qemu-devel@nongnu.org; Mon, 04 Dec 2017 22:49:47 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eM4Eq-0007Mk-KP for qemu-devel@nongnu.org; Mon, 04 Dec 2017 22:49:45 -0500 Received: from mga01.intel.com ([192.55.52.88]:32277) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eM4Eq-0007JF-Al for qemu-devel@nongnu.org; Mon, 04 Dec 2017 22:49:44 -0500 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Dec 2017 19:49:43 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.45,362,1508828400"; d="scan'208";a="9615355" Received: from devel-ww.sh.intel.com ([10.239.48.110]) by orsmga003.jf.intel.com with ESMTP; 04 Dec 2017 19:49:41 -0800 From: Wei Wang To: virtio-dev@lists.oasis-open.org, qemu-devel@nongnu.org, mst@redhat.com, marcandre.lureau@redhat.com, jasowang@redhat.com, stefanha@redhat.com, pbonzini@redhat.com Date: Tue, 5 Dec 2017 11:33:12 +0800 Message-Id: <1512444796-30615-4-git-send-email-wei.w.wang@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1512444796-30615-1-git-send-email-wei.w.wang@intel.com> References: <1512444796-30615-1-git-send-email-wei.w.wang@intel.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 192.55.52.88 Subject: [Qemu-devel] [PATCH v3 3/7] virtio/virtio-pci.c: add vhost-pci-net-pci X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: zhiyong.yang@intel.com, jan.kiszka@siemens.com, Wei Wang , avi.cohen@huawei.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Add the virtio-pci emulation part of the vhost-pci device. BAR2 is used to expose the remote VM's memory to the guest, and its default size is set to 64GB. Signed-off-by: Wei Wang --- hw/virtio/virtio-pci.c | 55 ++++++++++++++++++++++++++ hw/virtio/virtio-pci.h | 14 +++++++ include/hw/pci/pci.h | 1 + include/standard-headers/linux/vhost_pci_net.h | 3 ++ 4 files changed, 73 insertions(+) diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index e92837c..2a614b8 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -2386,6 +2386,60 @@ static const TypeInfo virtio_net_pci_info = { .class_init = virtio_net_pci_class_init, }; +/* vhost-pci-net */ + +static Property vpnet_pci_properties[] = { + DEFINE_PROP_END_OF_LIST(), +}; + +static void vpnet_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) +{ + VhostPCINetPCI *dev = VHOST_PCI_NET_PCI(vpci_dev); + DeviceState *vdev = DEVICE(&dev->vdev); + + memory_region_init(&dev->vdev.bar_region, NULL, "RemoteMemory", + REMOTE_MEM_BAR_SIZE); + pci_register_bar(&vpci_dev->pci_dev, REMOTE_MEM_BAR_ID, + PCI_BASE_ADDRESS_SPACE_MEMORY | + PCI_BASE_ADDRESS_MEM_PREFETCH | + PCI_BASE_ADDRESS_MEM_TYPE_64, + &dev->vdev.bar_region); + + qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); + virtio_pci_force_virtio_1(vpci_dev); + object_property_set_bool(OBJECT(vdev), true, "realized", errp); +} + +static void vpnet_pci_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + VirtioPCIClass *vpciklass = VIRTIO_PCI_CLASS(klass); + + k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; + k->device_id = PCI_DEVICE_ID_VHOST_PCI_NET; + k->class_id = PCI_CLASS_NETWORK_ETHERNET; + set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); + dc->props = vpnet_pci_properties; + vpciklass->realize = vpnet_pci_realize; +} + +static void vpnet_pci_instance_init(Object *obj) +{ + VhostPCINetPCI *dev = VHOST_PCI_NET_PCI(obj); + + virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), + TYPE_VHOST_PCI_NET); +} + +static const TypeInfo vpnet_pci_info = { + .name = TYPE_VHOST_PCI_NET_PCI, + .parent = TYPE_VIRTIO_PCI, + .instance_size = sizeof(VhostPCINetPCI), + .instance_init = vpnet_pci_instance_init, + .class_init = vpnet_pci_class_init, +}; + /* virtio-rng-pci */ static void virtio_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) @@ -2626,6 +2680,7 @@ static void virtio_pci_register_types(void) type_register_static(&virtio_balloon_pci_info); type_register_static(&virtio_serial_pci_info); type_register_static(&virtio_net_pci_info); + type_register_static(&vpnet_pci_info); #ifdef CONFIG_VHOST_SCSI type_register_static(&vhost_scsi_pci_info); #endif diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h index 12d3a90..cc58c17 100644 --- a/hw/virtio/virtio-pci.h +++ b/hw/virtio/virtio-pci.h @@ -18,6 +18,7 @@ #include "hw/pci/msi.h" #include "hw/virtio/virtio-blk.h" #include "hw/virtio/virtio-net.h" +#include "hw/virtio/vhost-pci-net.h" #include "hw/virtio/virtio-rng.h" #include "hw/virtio/virtio-serial.h" #include "hw/virtio/virtio-scsi.h" @@ -44,6 +45,7 @@ typedef struct VirtIOSCSIPCI VirtIOSCSIPCI; typedef struct VirtIOBalloonPCI VirtIOBalloonPCI; typedef struct VirtIOSerialPCI VirtIOSerialPCI; typedef struct VirtIONetPCI VirtIONetPCI; +typedef struct VhostPCINetPCI VhostPCINetPCI; typedef struct VHostSCSIPCI VHostSCSIPCI; typedef struct VHostUserSCSIPCI VHostUserSCSIPCI; typedef struct VirtIORngPCI VirtIORngPCI; @@ -293,6 +295,18 @@ struct VirtIONetPCI { }; /* + * vhost-pci-net-pci: This extends VirtioPCIProxy. + */ +#define TYPE_VHOST_PCI_NET_PCI "vhost-pci-net-pci" +#define VHOST_PCI_NET_PCI(obj) \ + OBJECT_CHECK(VhostPCINetPCI, (obj), TYPE_VHOST_PCI_NET_PCI) + +struct VhostPCINetPCI { + VirtIOPCIProxy parent_obj; + VhostPCINet vdev; +}; + +/* * virtio-9p-pci: This extends VirtioPCIProxy. */ diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index 8d02a0a..7911fa8 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -85,6 +85,7 @@ extern bool pci_available; #define PCI_DEVICE_ID_VIRTIO_RNG 0x1005 #define PCI_DEVICE_ID_VIRTIO_9P 0x1009 #define PCI_DEVICE_ID_VIRTIO_VSOCK 0x1012 +#define PCI_DEVICE_ID_VHOST_PCI_NET 0x1014 #define PCI_VENDOR_ID_REDHAT 0x1b36 #define PCI_DEVICE_ID_REDHAT_BRIDGE 0x0001 diff --git a/include/standard-headers/linux/vhost_pci_net.h b/include/standard-headers/linux/vhost_pci_net.h index cfb2413..792261e 100644 --- a/include/standard-headers/linux/vhost_pci_net.h +++ b/include/standard-headers/linux/vhost_pci_net.h @@ -29,7 +29,10 @@ #include "standard-headers/linux/virtio_ids.h" +#define REMOTE_MEM_BAR_ID 2 +#define REMOTE_MEM_BAR_SIZE 0x1000000000 #define METADATA_SIZE 4096 + #define MAX_REMOTE_REGION 8 struct vpnet_config {