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    SubjectRe: [PATCH 4/8] x86 boot: allow overlapping ebda and efi memmap memory ranges
    Huang wrote:
    > I think it is better to change boot loader to avoid memory area of EBDA.

    Would this require the bootloader to know the kernels rather arbitrary
    heuristics for inventing and placing an EBDA area, in reserve_ebda_region()?

    In general, I would think it better not to have to code into the EFI
    firmware or bootloader such knowledge. But perhaps I am wrong here.

    If the kernel is going to reserve an EBDA region even if no EBDA is
    requested by the BIOS, then I would think that the kernel should be
    more tolerant of BIOS's that put something else in that place.

    > Or do not reserve EBDA on EFI system.

    I suppose. This would have been a bigger change than I could
    suggest. For all I know, there are existing systems using EBDA
    and EFI together. Would this change break them?

    If you have good reason to know that's essentially impossible then
    I have no objections, so far as my needs go, to not reserving EBDA
    on EFI systems.

    --
    I won't rest till it's the best ...
    Programmer, Linux Scalability
    Paul Jackson <pj@sgi.com> 1.940.382.4214


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