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Fri, 15 May 2020 08:21:12 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzPELqCVKMK9hECEQKDvH51TzvynxIWjkkPp4CpKZLDeuxg/pzsM09HF9TfUvRQIBKphVg2cw== X-Received: by 2002:adf:f786:: with SMTP id q6mr4744034wrp.120.1589556072314; Fri, 15 May 2020 08:21:12 -0700 (PDT) Received: from steredhat.redhat.com ([79.49.207.108]) by smtp.gmail.com with ESMTPSA id q9sm3913849wmb.34.2020.05.15.08.21.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 May 2020 08:21:11 -0700 (PDT) From: Stefano Garzarella To: qemu-devel@nongnu.org Subject: [PATCH 0/3] virtio: add vhost-user-vsock device Date: Fri, 15 May 2020 17:21:07 +0200 Message-Id: <20200515152110.202917-1-sgarzare@redhat.com> X-Mailer: git-send-email 2.25.4 MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.120; envelope-from=sgarzare@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/14 22:56:02 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, 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=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: Julio Montes , Sebastien Boeuf , Stefan Hajnoczi , "Michael S. Tsirkin" Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This series add vhost-user-vsock base device and its PCI version (vhost-user-vsock-pci). The vhost-user-vsock device can be used to implement the virtio-vsock device emulation in user-space. An use case might be Kata, where they prefer to emulate devices in user-space. The first patch creates a new vhost-vsock-common parent class with the common code usable for both vhost-vsock and vhost-user-vsock devices. The other patches add the vhost-user-vsock base device and its PCI version. I also implemented a vhost-user-vsock [1] (still WiP) application written in Rust using crates from Cloud Hypervisor. The application implements the Firecracker hybrid vsock (vsock over unix domain socket) [2] The vhost-user-vsock-pci device can be tested following these steps: # build vhost-user-vsock application git clone https://github.com/stefano-garzarella/cloud-hypervisor.git git checkout vhost-user-vsock cargo build # start vhost-user-vsock ./target/debug/vhost_user_vsock \ --vsock-backend guest_cid=4,uds_path=/tmp/vm4.vsock,sock=/tmp/vhost4.socket # start QEMU qemu-system-x86_64 -m 1G -smp 2 -cpu host -M q35,accel=kvm \ ... \ -chardev socket,id=char0,reconnect=0,path=/tmp/vhost4.socket \ -device vhost-user-vsock-pci,chardev=char0 -monitor stdio # Guest listening guest$ nc --vsock -l 1234 host$ nc -U /tmp/vm4.vsock CONNECT 1234 # Host listening host$ nc -l -U /tmp/vm4.vsock_1234 guest$ nc --vsock 2 1234 [1] https://github.com/stefano-garzarella/cloud-hypervisor.git (vhost-user-vsock branch) [2] https://github.com/firecracker-microvm/firecracker/blob/master/docs/vsock.md Stefano Garzarella (3): vhost-vsock: add vhost-vsock-common abstraction virtio: add vhost-user-vsock base device virtio: add vhost-user-vsock-pci device configure | 3 + include/hw/virtio/vhost-user-vsock.h | 36 ++++ include/hw/virtio/vhost-vsock-common.h | 47 ++++ include/hw/virtio/vhost-vsock.h | 11 +- hw/virtio/vhost-user-vsock-pci.c | 84 ++++++++ hw/virtio/vhost-user-vsock.c | 188 ++++++++++++++++ hw/virtio/vhost-vsock-common.c | 258 ++++++++++++++++++++++ hw/virtio/vhost-vsock.c | 283 ++++--------------------- hw/virtio/Makefile.objs | 4 +- 9 files changed, 663 insertions(+), 251 deletions(-) create mode 100644 include/hw/virtio/vhost-user-vsock.h create mode 100644 include/hw/virtio/vhost-vsock-common.h create mode 100644 hw/virtio/vhost-user-vsock-pci.c create mode 100644 hw/virtio/vhost-user-vsock.c create mode 100644 hw/virtio/vhost-vsock-common.c