[lkml]   [2000]   [Oct]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: IRQ affinity vs. MTRRs, was Re: 36 bit MTRRs, Re: test10-pre1 problems on 4-way SuperServer8050
    Boszormenyi Zoltan <> writes:
    > I came up with an idea. The MTRRs are per-cpu things.
    > Ingo Molnar's IRQ affinity code helps binding certain
    > IRQ sources to certain CPUs.

    They are implemented as per-cpu things but the Intel manuals say that
    all cpus should have the same MTRR settings. They also give
    pseudo-code for how to update them on an SMP system, which mtrr.c

    If the BIOS has set them up differently at boot time, mtrr.c will
    complain and copy the MTRR settings of CPU0 to the others.

    David Wragg

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 12:41    [W:0.021 / U:6.320 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site