Re: [edk2] [PATCH v2] MdeModulePkg/PciBusDxe: make OPROM BAR degradation configurable

2016-09-23 Thread Ard Biesheuvel
On 19 September 2016 at 09:36, Ard Biesheuvel wrote: > The 'universal' PCI bus driver in MdeModulePkg contains a quirk to > degrade 64-bit PCI MMIO BARs to 32-bit in the presence of an option > ROM on the same PCI controller. > > This quirk is highly specific to not

[edk2] [PATCH v2] MdeModulePkg/PciBusDxe: make OPROM BAR degradation configurable

2016-09-19 Thread Ard Biesheuvel
The 'universal' PCI bus driver in MdeModulePkg contains a quirk to degrade 64-bit PCI MMIO BARs to 32-bit in the presence of an option ROM on the same PCI controller. This quirk is highly specific to not just the X64 architecture in general, but to the PC platform in particular, given that only