On Fri, 17 Jul 2009, Alexander Graf wrote:
Some KVM platforms don't support dirty logging yet, like IA64 and
PPC,
so in order to still have screen updates on those, we need to fake
it.
This patch just tells the getter function for dirty bitmaps, that all
pages within a slot are dirty when the slot has dirty logging
enabled.
That way we can implement dirty logging on those platforms sometime
when
it drags down performance, but share the rest of the code with dirty
logging capable platforms.
Isn't it going to be very very slow?
I think a memcmp based approach as a fallback would be a better idea,
and if we could make this generic it would be even better :)