Xen Dom0, are we making progress?

[Ivan Voras]

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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