[OpenBIOS] QEMU old Mac work

[Benjamin Herrenschmidt]

On Wed, 2016-08-10 at 20:54 +1000, Benjamin Herrenschmidt wrote:
> On Wed, 2016-08-10 at 11:26 +0200, Howard Spoelstra wrote:
> > 
> > I notice the problem in Puma (10.1) It seems there is some timer
> > error?, as e.g., the time remaining for installation fluctuates like
> > crazy (1600 hrs to go), and the beachball spins like mad. At boot
> > there is a too rapid succession of “still waiting for boot device” .
> > Just guessing, but might a timing issue also explain the slowness of
> > Leopard?
> 
> Possible. I'm not really sure, I haven't had too much of a chance to
> investigate but it's quite possible that there's a problem with time
> base calibration.
> 
> Though the VIA part of the PMU is identical to the CUDA part (unless I
> missed something up ...)

Regarding Leopard, I think that it's just slow :-) I installed it on my
old Mini G5 and it's definitely much slower than Tiger accross the board.

Chers,
Ben.