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

Gerd Hoffmann kraxel at redhat.com
Tue Oct 9 08:59:25 CEST 2012


  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




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