Re: multi-domain PCI and sysfs

Jon Smirl
2004-09-08T03:40:19Z

On Tue, 7 Sep 2004 16:11:40 -0700, David S. Miller <davem@davemloft.net> wrote:
> On Tue, 7 Sep 2004 18:58:53 -0400
> Jon Smirl <jonsmirl@gmail.com> wrote:
> > How many active VGA devices can I have in this system 1 or 4? If the
> > answer is 4, how do I independently address each VGA card? If the
> > answer is one, you can see why I want a pci0000 node to hold the
> > attribute for turning it off and on.
>
> I don't know about the above but for a multi-domain system the
> way it works is that the I/O ports are accessed using a different
> base address for each domain.

How does this work for IO ports in port space instead of memory mapped IO?

--
Jon Smirl
jonsmirl@gmail.com