Re: multi-domain PCI and sysfs
From: Jon Smirl
Date: Tue Sep 07 2004 - 22:43:42 EST
On Tue, 7 Sep 2004 16:11:40 -0700, David S. Miller <davem@xxxxxxxxxxxxx> wrote:
> On Tue, 7 Sep 2004 18:58:53 -0400
> Jon Smirl <jonsmirl@xxxxxxxxx> 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?
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