Matthew Dillon wrote: > In anycase, as usual I rattle on. If FreeBSD is interested I recommend > simply looking at the cool features I added to DragonFly's kernel to > make virtual kernels possible. It's really just three major items: > Signal mailboxes, a new MAP_VPAGETABLE for mmap, and the new vmspace_*() > system calls for managing VM spaces. Once those features were in place > it didn't take long for me to create a 'vkernel' platform that linked > against libc and used the new system calls.
Virtual kernels are a cool idea, but I (and I believe practically anyone using FreeBSD for non-development work) would much rather see a Xen-like functionality (to be precise: ability to run foreign kernels and Windows; qemu is too slow) than just a variation of the native kernel.
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