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Re: [Xen-devel] [edk2] [PATCH RFC v2 1/7] MdeModulePkg: introduce PcdPciAllowFullEnumeration ... [and one more message]

On Mon, Nov 25, 2013 at 03:12:04AM +0000, Kinney, Michael D wrote:
> Jordan,
> I agree that removing code duplication is a good idea.
> I believe we can make the one in the MdeModulePkg functional
> everywhere.  Size will be the only remaining difference.  This can be
> addressed longer term.  If the proposed PCD is configured as
> FixedAtBuild in a DSC file, we should be able to get the optimized
> code generation for the PciBusDxe to remove all the code/data that is
> only used for PCI Enumeration.  Then the PciBusNoEnumeration could be
> retired.

Forgive my ignorance -- is it possible to change FixedAtBuild PCD during
runtime? Jordan had the idea to disable / enable PCI enumeration during
runtime, so that we can have one single binary for all OVMF users.

> I have no issues with adding a PCD to make the PciBusDxe in the
> MdeModulePkg skip enumeration all together.

Cool, thank you for confirming this.


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