Re: [PATCH v1 00/12] PCI: Rework shadow ROM handling

[Linus Torvalds]

On Fri, Mar 11, 2016 at 4:49 PM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote:
>
> FWIW, if I disable all the checks in pci_get_rom_size, I learn that my
> video ROM consists entirely of 0xff bytes.  Maybe there just isn't a
> ROM shadow on my laptop.

I think most laptops end up having the graphics ROM be part of the
regular system flash, and there is no actual rom associated with the
PCI device that is the GPU itself.

The actual GPU ROM tends to be associated with plug-in cards, not
soldered-down chips in a laptop where they don't want extra flash
chips.

               Linus