On Tue, Apr 10, 2012 at 3:32 AM, Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx> wrote: > Additionally, I think there is a remaining issue even if we change > this check like below. > > > if (!!(pci_probe & PCI_PROBE_MASK & ~PCI_PROBE_MMCONF)) > return 0; > > I think this check has an assumption that system has at least one > MCFG table entry and it has been initialized before > acpi_pci_root_add() is called. I think this doesn't work on the > system that doesn't have MCFG and all the pci root bridge have > _CBA (that is, all host bridges are hot-pluggable and BIOS is > implemented in the way PCI FW spec defines). As a result, MMCONFIG > would never be enabled on such systems. Could you double check this? You are right. We can just remove that checking. But wonder if current x86_64 system support that. All peer root buses can be physically removed ? Thanks Yinghai -- 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
