Re: [PATCH] drivers/char/mem.c: Add /dev/ioports, supporting 16-bit and 32-bit ports

Maciej W. Rozycki
2014-06-06T09:02:42Z

On Wed, 4 Jun 2014, H. Peter Anvin wrote:

> > Also IIRC PCI-PCI bridges only forward port I/O space accesses
> > within the low 64kB.
>
> Not true.

It must have been an implementation-specific constraint then (e.g.
DECchip 21050), it's been a while since I looked into it. Thanks for
straightening me out.

Maciej