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    SubjectRe: [PATCH] x86_64: Change FIRST_SYSTEM_VECTOR to a variable.
    On Wed, Apr 9, 2008 at 7:59 AM, Ingo Molnar <mingo@elte.hu> wrote:
    >
    > * Alan Mayer <ajm@sgi.com> wrote:
    >
    > > Subject: [PATCH] x86_64: Change FIRST_SYSTEM_VECTOR to a variable.
    > >
    > > From: Alan Mayer <ajm@sgi.com>
    > >
    > > The SGI UV system needs several more system vectors than a vanilla
    > > x86_64 system. Rather than burden the other archs with extra system
    > > vectors that they don't use, change FIRST_SYSTEM_VECTOR to a variable,
    > > so that it can be dynamic.
    >
    > nice - but please split this up into two patches: first one that changes
    > the generic code to use a variable limit - this patch will (should) be a
    > functional NOP.
    >
    > then a second patch adds those two new UV vectors.
    >
    > Also, could you please also change the 32-bit side as well so that we at
    > least keep the two implementations roughly in sync?
    >

    for x86_64, current from 0x20 to 0x2f, we only use one for irq migration.

    wonder if you can use 2 from them for UV...

    YH


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