Subject: Re: access to external proms for PCI#
To: Garrett D'Amore <>
From: David Laight <>
List: tech-kern
Date: 12/18/2005 17:30:57
On Sun, Dec 18, 2005 at 09:21:52AM -0800, Garrett D'Amore wrote:
> The current cardbus code, as I read it, only accesses the expansion rom
> data if the configuration code (BIOS or elsewhere) writes a reasonable
> address into the BAR register.  I think therefore that using the PCI
> code I was suggesting will be OK.  (I.e. having it go ahead and map
> expansion roms without enabling them.)

Ok, if they've been allocated a physical address - but not a virtual one
then you don't have a massive problem.


David Laight: