- Contact: port-xen
Abstract: The blktap2 method provides a userland daemon to provide access to on disk files, arbitrated by the kernel. The NetBSD kernel lacks this support and currently disables blktap in xentools.
- blktap2 driver for /dev/blktapX
- Tool support to be enabled in xentools
- Enable access to various file formats (Qcow, VHD etc) , via the [ tap: ] disk specification.
The driver interacts with some areas of the kernel that are different from linux - eg: inter-domain page mapping, interdomain signalling. This may make it more challenging than a simple driver, especially with test/debug/performance risk.
Note: There's opportunity to compare notes with the FUSE/rump implementations.