Michael,
That sounds like a pointless exercise to me. First of all VirtualBox
isn't some QEmu extension like KVM
and the entire code is very tightly integrated. It's not possible
without rewriting 75% of the hypervisor.
Be my guest, but I don't know how many man years you've allocated for
this task. :-)
I also fail to see what you want to accomplish with that.
(MM)IO is handled in the instruction emulator, which calls the IOM*
functions, which end up calling
the registered device handlers. (src/VBox/VMM for IO handling,
src/VBox/Devices for the virtual device code)
Sander
On 12/22/2010 8:35 AM, Michael van der Kolff wrote:
I was thinking of attempting to write a patch to make VirtualBox use
KVM for its CPU (KVM only implements the CPU, it doesn't implement
platform - that's someone else's job). So, I read alternately the
doxygen documentation& the VBox source code (kvm-all.c from qemu
shows how to handle all of the stuff that KVM can chuck back - simple
once one sees how...). Anyway, I was looking to join the bits that do
MMIO& IO, and the doxygen documentation& names, categorisation,
etc... would seem to imply that IOMMMIO{Read/Write} are responsible
for that - except it would seem that they aren't called anywhere right
now.
How exactly is MMIO handled in VirtualBox right now?
Cheers,
Michael
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