Subject: Re: Multiple busses of the same kind
To: Todd Vierling <tv@wasabisystems.com>
From: Jason R Thorpe <thorpej@zembu.com>
List: tech-kern
Date: 07/31/2001 15:29:00
On Tue, Jul 31, 2001 at 06:21:22PM -0400, Todd Vierling wrote:
> : All, well, on almost all platforms *OTHER* than the PC, the ISA bus
> : is in fact not in 0-1MB of CPU address space.
>
> The point was that the origins of the thread referred to an i386 laptop with
> two pcib's when docked, although I don't believe that it was ever confirmed
> to have a real ISA bus inside the docking station (...I'd believe so,
> though).
You have to have multiple PCI domains in order to support this, so on
the PC, the answer is "no". (On PCs, even multiple PCI->Host bridges
implement only one PCI domain.)
--
-- Jason R. Thorpe <thorpej@zembu.com>