> On Thu, 15 Apr 1999 15:56:25 +0200 (MET DST) 
>  Anders Magnusson <ragge@ludd.luth.se> wrote:
> 
>  > > This is cool... I didn't realize the VAX port direct-mapped all of
>  > > physical RAM :-)
>  > > 
>  > Well, I started mapping in all physical memory first in the virtual
>  > memory a couple of years ago to simplify pmap_copy_page() and
>  > pmap_zero_page(), which only is 3 resp. 2 instructions each :-)
> 
> Kewl :-)
> 
> I suppose it's fairly simple to do on the VAX, because, well, I've
> never seen a VAX with a Lot of memory :-)
> 
VAXen has a hardware-specified kernel area of 1GB but can only handle
512MB of physical memory, so that won't be a problem. (Unless it's one
of the new type of VAXen with 3.5GB of memory, but I have no idea about
how those machines work at all, so for now I don't care :-)

-- Ragge