Re: [PATCH] x86_64: Change FIRST_SYSTEM_VECTOR to a variable.

["Yinghai Lu" <yhlu.kernel@gmail.com>]

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