Re: [coreboot] pci resource allocation overlaps config_mmconf_base_address

[Rudolf Marek]

I think this was heavily discussed a while back, and lead to some
naughty work arounds in the i945 code. because having such big a "hole"
lead to no resources being placed after the MMCONF area.

I think with a dynamic resource there are some place above the address.  Which 
gets normally used.


Besides the mentioned file, the acpi_tables does  following:

For the acpi it takes it from resource system:

unsigned long acpi_fill_mcfg(unsigned long current)
{
        device_t dev;
        struct resource *res;

        dev = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_K8M890CE_5, 
0);
        if (!dev)
                return current;

        res = find_resource(dev, K8T890_MMCONFIG_MBAR);
        if (res) {
                current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *)
                                current, res->base, 0x0, 0x0, 0xff);
        }
        return current;
}


Thanks,
Rudolf

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