On Sat, Nov 23, 2024 at 06:05:40PM -0800, mitchell.augustin via groups.io wrote: > Hi again, > I have a more specific version of a prior question: Is there some > fw_cfg flag that would simply allow me to use the classic MMIO window, > in effect keeping PlatformInfoHob->PcdPciMmio64Size and > PlatformInfoHob->PcdPciMmio64Base set to what they would be with the > PlatformDynamicMmioWindow patch ( > https://github.com/tianocore/edk2/commit/ecb778d0ac62560aa172786ba19521f27bc3f650 > ) disabled?
Not directly. OVMF considers PcdPciMmio64Size being the minimum size. Rf the dynamic mmio window would be larger it will simply use the dynamic mmio window, otherwise the PcdPciMmio64Size + PcdPciMmio64Base values. The dynamic mmio windos is 1/8 of the address space, i.e. for phys-bits=42 (4TB address space) the dynamic mmio window size is 512GB. In that case you can set PcdPciMmio64Size to 1TB and PcdPciMmio64Base to 1 or 2 or 3 TB and OVMF should use these values. take care, Gerd -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#120831): https://edk2.groups.io/g/devel/message/120831 Mute This Topic: https://groups.io/mt/109651206/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
