Messages in this thread | | | Date | Tue, 18 Dec 2007 19:55:37 -0500 | From | Chuck Ebbert <> | Subject | Re: PCI resource problems caused by improper address rounding |
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On 12/18/2007 07:11 PM, Robert Hancock wrote: >> However, I wonder about that >> >> e0000000-efffffff : pnp 00:0b >> >> thing. I actually suspect that that whole allocation is literally >> *meant* for that 256MB graphics aperture, but the kernel explicitly >> avoids it because it's listed in the PnP tables. > > That is probably the MMCONFIG aperture, in that case any attempt to map > the graphics BAR there will have disastrous results. (This BIOS has an > MCFG table, though it looks like this Fedora kernel has MMCONFIG > disabled, so we can't tell what it actually contains.) >
You can boot with "pci=mmconf" to enable it.
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