Andrey V. Elsukov wrote:
16.03.08, 09:30, "David O'Brien" <[EMAIL PROTECTED]>:
Add virtual kernel (vkernel) support to FreeBSD for the i386 and amd64
architectures.
The vkernel support in question is the one found in DragonFlyBSD.
Not being up on DragonFlyBSD, can you better describe what "vkernel" is?
vkernel is similar to User Mode Linux technology. You can boot vkernel as a
user mode process. I think it will be good to have similar in FreeBSD.
There are several links:
http://leaf.dragonflybsd.org/mailarchive/users/2007-01/msg00237.html
http://www.dragonflybsd.org/docs/articles/vkernel/vkernel.shtml
The two links that Andrey posted are very good. I just want to add a
short summary:
A vkernel is a kernel running as a user process under a real kernel. The
vkernel runs in the CPU's priviledge ring 3. It services its child
processes like a normal kernel, but whenever a page table needs to be
modified, context switched, or some other privileged operation needs to
be executed, the vkernel asks the real kernel through a syscall interface.
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