Hi, > I think one can go with 2GB MMIO hole.
Agreeing here. We have PAE. Non-ancient 32bit kernels should support and use it, for both security reasons (nox support requires PAE page table format) and accessing physical address space above 4G. > The PCIe > 4GB is a question, I don't > think Windows have good support for this. Depends on the version. Recent windows versions have no problems handling it. WinXP throws a BSOD though in case it finds a 64bit mmio window described in \_SB.PCI0._CRS ... cheers, Gerd -- coreboot mailing list: coreboot@coreboot.org https://www.coreboot.org/mailman/listinfo/coreboot