Intel Xeon Processor kernel compile CPU type.

[Howard Leadmon]

Good, so nocona is really the right one to specify.   Good to know I have
been doing it correctly on my x64 machines, and heck nice document/defines
there, I'll keep that in my notes so I know how to find stuff like that in
the future..  


---
Howard Leadmon 


> -----Original Message-----
> From: Roland Smith [mailto:rsmith at xs4all.nl]
> Sent: Friday, February 20, 2009 1:59 PM
> To: Howard Leadmon
> Cc: 'Oliver Pinter'; freebsd-amd64 at freebsd.org
> Subject: Re: Intel Xeon Processor kernel compile CPU type.
> 
> On Fri, Feb 20, 2009 at 09:05:46AM -0500, Howard Leadmon wrote:
> >  I knew HAMMER was the only type for making your kernel, but what
> CPUTYPE's
> > are OK for 64bit?
> <snip>
> > CPU: Intel(R) Xeon(TM) CPU 2.80GHz (2793.20-MHz K8-class CPU)
> >   Origin = "GenuineIntel"  Id = 0xf48  Stepping = 8
> >
> >
> Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,M
> CA
> > ,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
> >   Features2=0x649d<SSE3,RSVD2,MON,DS_CPL,EST,CNXT-ID,CX16,xTPR>
> >   AMD Features=0x20100800<SYSCALL,NX,LM>
> >   AMD Features2=0x1<LAHF>
> >   Cores per package: 2
> >   Logical CPUs per core: 2
> > FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs
> >
> >  So should this stuff be set to nocona, core2, or what??
> 
> Have a look at /usr/share/mk/bsd.cpu.mk. If you are using the amd64
> architecture, you can use CPUTYPE=prescott or CPUTYPE=core2, but both
> will be converted to CPUTYPE=nocona. That's probably because that is the
> latest variant that the gcc in base understands.
> 
> Roland
> --
> R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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