VirtIO-FS Support Is In QEMU 5.0 For Better File/Folder Sharing Between Hosts And VMs

[phoronix]

Phoronix: VirtIO-FS Support Is In QEMU 5.0 For Better File/Folder Sharing Between Hosts And VMs

Added back in Linux 5.4 was the VirtIO-FS file-system driver as a a FUSE-framework-based file-system implementation designed for guest to/from host file-system sharing for VirtIO para-virtualized devices. Now with QEMU 5.0 VirtIO-FS is supported on its side...

http://www.phoronix.com/scan.php?page=news_item&px=VirtIO-FS-QEMU-5.0-Merged

[tildearrow]

Well, I think there is a a typo;

Phoronix: VirtIO-FS Support Is In QEMU 5.0 For Better File/Folder Sharing Between Hosts And VMs

Added back in Linux 5.4 was the VirtIO-FS file-system driver as a a FUSE-framework-based file-system implementation designed for guest to/from host file-system sharing for VirtIO para-virtualized devices. Now with QEMU 5.0 VirtIO-FS is supported on its side...

http://www.phoronix.com/scan.php?pag...EMU-5.0-Merged

[hiryu]

https://virtio-fs.gitlab.io/howto-boot.html

Seems having your root filesystem be virtio-fs is possible. Pretty nice to be to not have to deal with disk images (but disk images will still be very nice to have for some things).

[OneTimeShot]

Hmm... slowly virtualisation is coming full circle back to being chroot.

[Chewi]

I'm currently using QEMU on a Windows host to Linux guest every day for work so I was hoping to get this going under Windows. I've been able to build the WinFSP passthrough-fuse3 test program using mingw-w64 but I get a DLL error when I try to run it. Trying to build virtiofsd itself just leads to a ton of compile errors. I guess it needs to be adjusted to use the POSIX compatibility layer that WinFSP has and I bet that layer has a lot missing. Switching to Rust is interested but I suspect it won't make this any easier.

[MrCal]

Can a Windows guest VM using WinFSP access a Linux host VirtIO-FS shared folder?

[MrCal]

Maybe I got it wrong, VirtIO-FS is being used by Linux guests (kernel 5.4) accessing a shared folder on the host, right!
So WinFSP is the equalevant of VirtIO-FS for Win guests? Can it be used to access shared folders on the KVM host?