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    SubjectRe: [PATCH]Fix broken VMI in 2.6.27-rc..
    Zachary Amsden wrote:
    >
    >> Realistically speaking, any (virtual) machine which does *not* have a
    >> full complement of lowmem (i.e. less than 896 MB in the common case)
    >> will not suffer significatly from losing a few megabytes of address space.
    >
    > Yes, the reason to make the fixmap moveable is to allow as much address
    > space as possible for big memory (physical) machines.
    >

    That being said, the fixmap area being movable more than kind of defeats
    a major point of the fixmap area; the addresses in it are no longer fixed.

    The only way I can see around that, though, is to move the 1:1 mapping
    base up by 2/4 MB (for PAE/no PAE, respectively) and put the fixmap area
    there. Kind of sucks, but would be doable.

    -hpa


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