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CONFIG_X86_CPUID: /dev/cpu/*/cpuid - CPU information support

General informations

The Linux kernel configuration item CONFIG_X86_CPUID has multiple definitions:

/dev/cpu/*/cpuid - CPU information support found in arch/i386/Kconfig

The configuration item CONFIG_X86_CPUID:

Help text

This device gives processes access to the x86 CPUID instruction to be executed on a specific processor. It is a character device with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to /dev/cpu/31/cpuid.

/dev/cpu/*/cpuid - CPU information support found in arch/x86/Kconfig

The configuration item CONFIG_X86_CPUID:

Help text

This device gives processes access to the x86 CPUID instruction to be executed on a specific processor. It is a character device with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to /dev/cpu/31/cpuid.

/dev/cpu/*/cpuid - CPU information support found in arch/x86_64/Kconfig

The configuration item CONFIG_X86_CPUID:

Help text

This device gives processes access to the x86 CPUID instruction to be executed on a specific processor. It is a character device with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to /dev/cpu/31/cpuid.

Hardware

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