[SeaBIOS] Re: [PATCH] optionroms: Use revision when finding Option ROM

[Kevin O'Connor]

On Mon, Mar 16, 2020 at 05:48:55PM +0100, Paul Menzel wrote:
> From: Rob Barnes 
> Date: Wed, 22 Jan 2020 14:09:21 -0700
>
> Some devices have the same vendor and device ID but need different
> Option ROM files. Change the look-up to include the revision, then
> fallback to looking up without the revision.

Thanks.  At a high-level I think this change is fine.  However, the
documentation would also need to be updated (specifically I'm thinking
about docs/Runtime_config.md).

-Kevin
> BUG=b:148125384
> TEST=Manual, boot trembyle and confirm SeaBIOS console is displayed.
>
> Change-Id: I4c969b08727077fcb5ca1198e61cc6711c675019
> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/seabios/+/...
> Reviewed-by: Raul E Rangel 
> Tested-by: Rob Barnes 
> Commit-Queue: Rob Barnes 
> Auto-Submit: Rob Barnes
>
> src/optionroms.c | 13 ++++++++++---
>  1 file changed, 10 insertions(+), 3 deletions(-)
>
> diff --git a/src/optionroms.c b/src/optionroms.c
> index e906ab9..c3aa9b0 100644
> --- a/src/optionroms.c
> +++ b/src/optionroms.c
> @@ -329,10 +329,17 @@ init_pcirom(struct pci_device *pci, int isvga, u64
> *sources)
>      dprintf(4, "Attempting to init PCI bdf %pP (vd %04x:%04x)\n"
>              , pci, pci->vendor, pci->device);
> char fname[17];
> snprintf(fname, sizeof(fname), "pci%04x,%04x.rom"
>         , pci->vendor, pci->device);
> char fname[20];
> // Try to find rom file with revision included
> snprintf(fname, sizeof(fname), "pci%04x,%04x,%02x.rom"
>         , pci->vendor, pci->device, pci->revision);
> struct romfile_s *file = romfile_find(fname);
> if (!file) {
>    // Fallback to finding rom file without revision
>    snprintf(fname, sizeof(fname), "pci%04x,%04x.rom"
>         , pci->vendor, pci->device);
>    file = romfile_find(fname);
> }
> struct rom_header *rom = NULL;
> if (file)
>     rom = deploy_romfile(file);