How to tell whether CPU supports x64?

[Devin Teske]

On Thu, 2011-03-17 at 14:33 -0700, Tait wrote:

> I have a remote server, and I'd like to know if it will support
> 64-bit instructions. Is there some way I can tell? It's running 32-bit
> FreeBSD right now.
> 
> >From dmesg.boot:
> 	Timecounter "i8254" frequency 1193182 Hz quality 0
> 	CPU: Intel(R) Xeon(TM) CPU 2.40GHz (2387.76-MHz 686-class CPU)
> 	Origin = "GenuineIntel"  Id = 0xf29  Stepping = 9
> 	Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
> 	Features2=0x4400<CNTX-ID,<b14>>
> 	Logical CPUs per core: 2
> 	real memory  = 1073676288 (1023 MB)
> 	avail memory = 1041502208 (993 MB)
> 	ACPI APIC Table: <DELL   PE1750  >
> 	FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
> 	cpu0 (BSP): APIC ID:  0
> 	cpu1 (AP): APIC ID:  1
> 
> I've had no luck trying to search for the id/stepping. Would the
> feature list show x64 support?


Just as an FYI, dmidecode offers a pretty comprehensive view of your
hardware. Available both as a package and in the ports tree.
--
Devin


> 
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