image/svg+xmlTomasz KulasekVhost-SCSI deviceSPDK bdev(s)(NVMe, NVMf, Ceph RBD, PMEM)SPDK vhostQEMUVirtio-SCSI deviceVhost-user driver (master)Shared hugepage memoryVirtqueuesI/O bufferspollingDMAKVMcallfdeventfd interruptirqfdVirtio-SCSI PCIdriverVMUnix domain socketVhost-user messages