Re: [RFC 8/8] x86_64: Support for new UV apic

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

On Wed, Mar 26, 2008 at 12:38 AM, Ingo Molnar <mingo@elte.hu> wrote:
>
>  * Jack Steiner <steiner@sgi.com> wrote:
>
>  > > > -        obj-y                            += genapic_64.o genapic_flat_64.o
>  > > > +        obj-y                            += genapic_64.o genapic_flat_64.o genx2apic_uv_x.o
>  > >
>  > > Definitely should be a CONFIG
>  >
>  > Not sure that I understand why. The overhead of UV is minimal & we
>  > want UV enabled in all distro kernels. OTOH, small embedded systems
>  > probably want to eliminate every last bit of unneeded code.
>  >
>  > Might make sense to have a config option. Thoughts????
>
>  i wouldnt mind having UV enabled by default (it can be a config option
>  but default-enabled on generic kernels so all distros will pick this hw
>  support up), but we definitely need the genapic unification before we
>  can add more features.

config option would be reasonable.
for x86_64
subarch already have X86_PC, X86_VSMP.
we have X86_UVSMP

YH

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