Re: 8259A initialization with AMD SC520 chip (586)

From: Ralf Baechle (ralf@uni-koblenz.de)
Date: Mon May 29 2000 - 06:19:55 EST


On Tue, May 23, 2000 at 04:08:57PM -0700, Linus Torvalds wrote:

> > > Actually, I do want to know. (I'm writing an x86 formal spec).
> > > Do you mark the pte? :-)
> >
> > And what happens if marking the pte causes a page fault..
>
> x86 pte's are physical. You only get virtual pte's on m68k (and I have no
> idea what those do).

You also get virtual pte's on CPUs that do software tlb reloading. MIPS
kernel once used that and I plan to use that again, allows the exception
handler to assume a flat TLB.

  Ralf

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Wed May 31 2000 - 21:00:22 EST