large pages (amd64)

[Alan Cox]

Nathanael Hoyle wrote:
[snip]
> Having been corrected by both you and Joerg (thank you!), I went back 
> to re-verify my understanding. It appears that while I was slightly 
> mixing PAE in with PSE, PSE support for 4MB pages was introduced 
> 'silently' with the Pentium, and documented first with the Pentium 
> Pro.  I haven't found anything that points to earlier inclusion. 
> Certainly the 80386 processor specifically, I am fairly confident 
> would be limited to the 4KB pages.
>
> Agreed? Or are you aware of earlier usage than the Pentium for 4MB pages?
>

Yes, I agree.  I'm not aware of 4MB page support before the Pentium.

Regards,
Alan