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    SubjectRe: [PATCH] export e820 table on x86

    On Thu, 21 Nov 2002, Dave Hansen wrote:
    >
    > BIOS-e820: 0000000000000000 - 000000000009dc00 (usable)
    > BIOS-e820: 000000000009dc00 - 00000000000a0000 (reserved)
    > BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
    > BIOS-e820: 0000000000100000 - 000000003fff9380 (usable)
    > BIOS-e820: 000000003fff9380 - 0000000040000000 (ACPI data)
    > BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
    > BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
    > BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved)
    >
    > I added a " e820" onto the end of each of the cases in
    > register_memory(). Where does the "00000000000e0000 -
    > 0000000000100000 (reserved)" entry go?

    The kernel removes all region claims in the 0xa0000 - 0x100000 area, since
    there are broken bioses that claim there is good memory there even if
    there isn't.

    > I wonder if it is vital to the next boot...

    Nope, the next boot would also just remove it..

    Linus

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