How to emulate block devices with QEMU | Linux Today
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How to emulate block devices with QEMU

Written By
DZ
Dongli Zhang
May 8, 2020

Block devices are significant components of the Linux kernel. In this article, we introduce the usage of QEMU to emulate some of these block devices, including SCSI, NVMe, Virtio and NVDIMM. This ability facilitates Linux administrators or developers, to study, debug and develop the Linux kernel, as it is much easier to customize the configuration and topology of block devices with QEMU. In addition, it is also considerably faster to reboot a QEMU/KVM virtual machine than to reboot a baremetal server.
DZ

Dongli Zhang

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