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    SubjectRe: [PATCH v5 13/14] x86: reserve setup_data ranges late after parsing memmap cmdline
    On Mon, Dec 09, 2013 at 05:42:26PM +0800, Dave Young wrote:
    > Currently e820_reserve_setup_data is called before parsing early params,
    > it works in normal case. But for memmap=exactmap, the final memory ranges
    > are created after parsing memmap= cmdline params, so the previous
    > e820_reserve_setup_data has no effect. For example, setup_data ranges
    > will still be marked as normal system ram, thus when later sysfs driver
    > ioremap them kernel will warn about mapping normal ram.
    > This patch fix it by moving the e820_reserve_setup_data callback after
    > parsing early params so they can be set as reserved ranges and later
    > ioremap will be fine with it.
    > changes:
    > Boris: improve patch description
    > Signed-off-by: Dave Young <>

    Acked-by: Borislav Petkov <>


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