Re: [SeaBIOS] [PATCH v2 5/9] seabios: add q35 initialization functions.

[Gerd Hoffmann]

Hi,
> +void mch_mem_addr_init(struct pci_device *dev, void *arg)
> +{
> u64 *start = (u64 *)arg;
> /* mmconfig space */
> *start = Q35_HOST_BRIDGE_PCIEXBAR_ADDR +
>            Q35_HOST_BRIDGE_PCIEXBAR_SIZE;
> mtrr_base = *start;
>
> +}

Ah, I see.  mtrr needs to cover mmconfig too, thats why it is separate
from pcimem_start.

Does that actually work?  Can you create mtrr entries for 0xb0000000 ->
0xffffffff?  Maybe you need two, one 0xb0000000 -> 0xbfffffff and one
0xc0000000 -> 0xffffffff.

cheers,
  Gerd