spdk vhost-user-scsi vhost-kernel方案相较于virtio-scsi优化了host上的io,但是仍然存在通知的开销,guest需要通知qemu,qemu需要通知host kernel vhost-scsi,于是进一步演进出了vhost-user方案: 整体架构如上图所示,virtio backend仍然在host用户态,但是放到了qemu外部,vhost作为独立进程运行在host用户态,通过hugepage的共...
通过设置RTE_VHOST_USER_CLIENT标志,OVS可请求创建vhost user套接口的客户端模式。 OVS函数netdev_dpdk_vhost_construct调用DPDK的rte_vhost_driver_register函数,其又调用vhost_user_create_server或者vhost_user_create_client函数创建套接口。默认使用前者创建服务端模式的套接口,如果设置了RTE_VHOST_USER_CLIENT标志,创...
-netdev vhost-user,id=str,chardev=dev[,vhostforce=on|off] configure a vhost-user network, backed by a chardev 'dev' -netdev vhost-vdpa,id=str,vhostdev=/path/to/dev configure a vhost-vdpa network,Establish a vhost-vdpa netdev -netdev hubport,id=str,hubid=n[,netdev=nd] configure a...
-chardev socket,id=spdk_vhost_scsi0,path=/var/tmp/vhost.0 \ -device vhost-user-scsi-pci,id=scsi0,chardev=spdk_vhost_scsi0,num_queues=4 \ -chardev socket,id=spdk_vhost_blk0,path=/var/tmp/vhost.1 \ -device vhost-user-blk-pci,chardev=spdk_vhost_blk0,num-queues=4...
path=/tmp/vhost1,server -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,mrg_rxbuf=on,rx_queue_size=256,tx_queue_size=256-vnc :10root48617148618qemu-system-aarch64 -name vm2 -daemonize -enable-kvm -M virt...
vhost-net support no vhost-crypto support no vhost-scsi support no vhost-vsock support no vhost-user support yes Trace backends log spice support no rbd support no xfsctl support no smartcard support no libusb no usb net redir no OpenGL support no ...
1、首先知道下源码项目作者打补丁太猛,scsi等virtIO设备存在无法工作bug,下面文字讲解了解下就是,可不看下面内容 源码项目作者打补丁太猛,对pci.h文件 里面所有redhat virtIO设备都强制改成了8086(intel),bug就是如果你原先pve里面有虚拟机使用了virtIO等设备都用不起(比如scsi virtIO网卡,rng等等设备。用不起的原因...
scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -chardev socket,id=charnet0,path=/var/run/openvswitch/vhuc26fd3c6-4b -netdev vhost-user,chardev=charnet0,queues=8,id=hostnet0 -device virtio-net-pci,mq=on,vectors=18,netdev=hostnet0,id=net0,mac=...
bootdisk: (ide|sata|scsi|virtio)\d+ Enable booting from specified disk. Deprecated: Use boot: order=foo;bar instead. cdrom: <volume> This is an alias for option -ide2 cicustom: [meta=<volume>] [,network=<volume>] [,user=<volume>] [,vendor=<volume>] cloud-init: Specify custom ...
注意:RedHat Linux KVM 不支持 SCSI 模拟。 在不显式指定使用其它类型设备的情况下,KVM 虚机将使用这些默认的虚拟设备。比如上面描述的默认情况下 KVM 虚机默认使用rtl8139网卡。比如,在 RedHat Linxu 6.5 主机上启动KVM RedHat Linux 6.4 虚机后,登录虚机,查看 pci 设备,可以看到这些模拟设备: ...