Markus Armbruster <[email protected]> 于2022年7月12日周二 13:47写道： > > Sam Li <[email protected]> writes: > > > This patch series adds support for zoned device to virtio-blk emulation. > > Zoned > > Storage can support sequential writes, which reduces write amplification in > > SSD, > > leading to higher write throughput and increased capacity. > > Forgive me if this has already been discussed, or is explained deeper in > the patch series... > > The commit message sounds like you're extending virtio-blk to optionally > emulate zoned storage. Correct?
Yes! The main purpose is to emulate zoned storage only for the zoned device files. Right now, QEMU sees those as regular block devices. > PATCH 1 adds a new block block device driver 'zoned_host_device', and > PATCH 9 exposes it in QAPI. This is for passing through a zoned host > device, correct? Yes! It allows the guest os see zoned host device. It is still in development. Maybe the implementations will change later. Best regards, Sam
