Hi,
On 07/13/20 12:22, Marcello Sylvester Bauer wrote:
> From: Patrick Rudolph <patrick.rudo...@9elements.com>
>
> The Option ROM scanner can't work as enumeration was done by the
> first stage bootloader. Running it will disable the ability of the
> PCIPlatform code to scan for ROMs.
>
> Required for the following patch that enables custom Option ROM
> scanning using gPciPlatformProtocol.
>
> Signed-off-by: Patrick Rudolph <patrick.rudo...@9elements.com>
> Signed-off-by: Marcello Sylvester Bauer <marcello.ba...@9elements.com>
> Cc: Patrick Rudolph <patrick.rudo...@9elements.com>
> Cc: Christian Walter <christian.wal...@9elements.com>
> Cc: Maurice Ma <maurice...@intel.com>
> Cc: Nate DeSimone <nathaniel.l.desim...@intel.com>
> Cc: Star Zeng <star.z...@intel.com>
> ---
> MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c | 10 ++++++----
> 1 file changed, 6 insertions(+), 4 deletions(-)
Please don't forget to CC the maintainers / designated reviewers of this
code.
$ python BaseTools/Scripts/GetMaintainer.py \
-l MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
Jian J Wang <jian.j.w...@intel.com>
Hao A Wu <hao.a...@intel.com>
Ray Ni <ray...@intel.com>
devel@edk2.groups.io
I'm adding Jian, Hao, and Ray now.
Also CC'ing Anthony and Julien, because OVMF runs on Xen with
PcdPciDisableBusEnumeration=TRUE, and this patch changes behavior in
that case.
Thanks
Laszlo
>
> diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
> b/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
> index 6c68a97d4e46..7420f0079f7d 100644
> --- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
> +++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
> @@ -2530,10 +2530,12 @@ PciEnumeratorLight (
> //
> RemoveRejectedPciDevices (RootBridgeDev->Handle, RootBridgeDev);
>
> - //
> - // Process option rom light
> - //
> - ProcessOptionRomLight (RootBridgeDev);
> + if (!PcdGetBool (PcdPciDisableBusEnumeration)) {
> + //
> + // Process option rom light
> + //
> + ProcessOptionRomLight (RootBridgeDev);
> + }
>
> //
> // Determine attributes for all devices under this root bridge
>
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