On 9/13/07, H. Peter Anvin <[EMAIL PROTECTED]> wrote: > Yinghai Lu wrote: > > > > BIOS guys also said that fam 10h need mmconfig via eax accessing, may > > need OS do sth, so it is safe to stay with MCFG entry for SB like > > mcp55... > > > > but latest kernel already have that workaround to make mmconfig via eax... > > > > This is actually a good point. Since the CPU vendor managed to > completely fuck up the operation of MMCONFIG itself on this CPU (it's a > *MEMORY REFERENCE*, guys!), it is actually to be expected and prudent > that BIOS vendors will drop the MCFG entry. MMCONFIG doesn't actually > work on this CPU for any system software which doesn't already know to > work around this particular piece of severe braindamage; > standards-complicant MMCONFIG isn't supported at all.
if other mmconfig device on x86 is sick of accessing via eax, may need to provide one fam10h_pci_mmcfg to be assigned to raw_pci_ops instead and leave pci_mmcfg to default behavior ( *MEMORY REFERENCE*). YH - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
