* H. Peter Anvin <hpa@xxxxxxxxx> wrote: > Yinghai Lu wrote: > > > > that need to do done much earlier, and much simple, just need to make that range to be reserved in e820. > > and later e820_setup_gap even don't need to be aligned again. > > > > As long as that doesn't cause the PCI layer to move devices > already assigned in this range out of it. What we want is really > a "weak reserve". On the other hand, that may very well be the > semantics of the existing reserved space, too (I honestly haven't > looked lately.) We have reserve_region_with_split(), which 'wraps around' existing resources non-intrusively by creating split-up resources - preventing their forced reallocation (and preventing their possible breakage - a number of BARs dont like dynamic reallocations at all). Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
