本发明涉及一种基于VFIOUser协议的自动重协商方法及系统,属于虚拟化技术领域,该方法包括:响应用户向QEMU虚机挂载新的VFIOUser盘;通过所述QEMU虚机进行设备初始化;登入所述QEMU虚机,对所述VFIOUser盘持续读写;SPDK进程异常重启;通过所述QEMU虚机向SPDK unix socket发起重协商;SPDK VFIOUser盘状态恢复,虚机IO恢复.可以...
VFIO-USER简介 VFIO-USER 是一种协议,允许在虚拟机监视器 (VMM) 之外的单独进程中模拟设备。 ▪ VFIO-USER 规范主要基于 Linux VFIO ioctl 接口,以将其实现为通过 UNIX 域套接字发送的消息。 ▪ VFIO-USER 有两个部分: • VFIO-USER 客户端在 VMM 或应用程序中运行。 • VFIO-USER 服务器用于在单...
Error - no supported modules(DPDK driver) are loaded [45.422045] VFIO - User Level meta-driver version:0.3YError-no supported modules(DPDK driver) are loaded[root@localhost~]# 正常情况下 [root@localhost cloud_images]# lsmod |grep vfio vfio_pci2621440vfio_virqfd2621441vfio_pci vfio_iommu_type...
aA用户vfioVFIO角度userUser 系统标签: vfiouseriommuwilliamsonperspectivealex Alex Williamson 1 VFIO: A user's perspective Alex Williamson alex.williamson@redhat November 8 th , 2012 KVM Forum 2012 Alex Williamson 2 What is VFIO? Alex Williamson 3 What is VFIO? ● A new user level driver framewor...
在Userfaultfd之前,用户态缺页处理使用 "mprotect + SIGSEGV信号处理" 来实现的,libsigsegv[10]就是专门用来干这个的一个GNU库。[12] 这种方法比较triky,效率不如新出的userfaultfd?[11] [1]https://www.kernel.org/doc/Documentation/vfio-mediated-device.txt ...
This fixes a number of issues with how DMA is handled, based on some changes by Thanos Makatos: rename callbacks to register/unregister, as there is not necessarily any mapping provide the (large)...
Linux based user-space RSHIM driver for the Mellanox BlueField SoC - pcie: Add VFIO support for Bluefield-3 · Mellanox/rshim-user-space@d4f90f4
Mdev-GPU enables the creation of arbitrary user-configurable Mediated Device types on existing drivers which either don't supportVFIO-Mdev functionalityor only support pre-defined Mdev types. How does this work? In order to virtualize the GPU via the VFIO-Mdev API a driver must register devices...