On Tue, 04 Aug 2009 13:46:31 EDT erik quanstrom <[email protected]> wrote:
> > Anyway, a couple of areas to look into, if you want plan9 on
> > vbox: try changing the memory layout of plan9 or figure out
> > what qemu did to make plan9 run well and apply that change to
> > vbox.
>
> what makes you think its a memory layout issue?
I can no longer remember but I think the following played some
part in thinking that. Qemu internals document (on qemu.org):
For system emulation, QEMU uses the mmap() system call to
emulate the target CPU MMU. It works as long the emulated
OS does not use an area reserved by the host OS (such as
the area above 0xc0000000 on x86 Linux).
Elsewhere it says
Achieving self-virtualization is not easy because there
may be address space conflicts. QEMU solves this problem
by being an executable ELF shared object as the
ld-linux.so ELF interpreter. That way, it can be
relocated at load time.
It was a hypothesis and it could be all wet.
