How can the cpu type be read in the linux kernel code (viz. x86, x86_64)?
Question
I want to detect the cpu type while the kernel is booting (viz. x86 or x86_64) so that I can do a task differently based on the cpu type. Is there a simple way to know the CPU type?
2 answers
solution1
2 2014-03-06 10:04:13
您可以阅读/proc/cpuinfo以获取cpu类型
solution2
1 ACCPTED 2014-03-06 09:48:15
How about the cpuid instruction ?
There is a module interfacing it, source code is here .
If interested, also have a look here or here or here for other examples.
Also have a look at this question for using cpuid to know if your system supports SSE.
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