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/x86/Kconfig

The configuration item CONFIG_X86_CPUID:

• prompt: /dev/cpu/*/cpuid - CPU information support
• type: tristate
• depends on: (none)
• defined in arch/x86/Kconfig
• found in Linux kernels: 2.6.24–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD
• modules built: ../../i386/kernel/cpuid, ../../i386/kernel/cpuid, cpuid, cpuid, 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:

• prompt: /dev/cpu/*/cpuid - CPU information support
• type: tristate
• depends on: (none)
• defined in arch/x86_64/Kconfig
• found in Linux kernels: 2.5.45–2.5.75, 2.6.0–2.6.23
• modules built: ../../i386/kernel/cpuid, ../../i386/kernel/cpuid, cpuid, cpuid, 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/i386/Kconfig

The configuration item CONFIG_X86_CPUID:

• prompt: /dev/cpu/*/cpuid - CPU information support
• type: tristate
• depends on: (none)
• defined in arch/i386/Kconfig
• found in Linux kernels: 2.5.45–2.5.75, 2.6.0–2.6.23
• modules built: ../../i386/kernel/cpuid, ../../i386/kernel/cpuid, cpuid, cpuid, 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

LKDDb

Raw data from LKDDb:

• lkddb module ../../i386/kernel/cpuid CONFIG_X86_CPUID : arch/i386/Kconfig : "/dev/cpu/*/cpuid - CPU information support" # in 2.6.0
• lkddb module ../../i386/kernel/cpuid CONFIG_X86_CPUID : arch/x86_64/Kconfig : "/dev/cpu/*/cpuid - CPU information support" # in 2.6.0
• lkddb module cpuid CONFIG_X86_CPUID : arch/i386/Kconfig : "/dev/cpu/*/cpuid - CPU information support" # in 2.5.45–2.5.75, 2.6.1–2.6.23
• lkddb module cpuid CONFIG_X86_CPUID : arch/x86/Kconfig : "/dev/cpu/*/cpuid - CPU information support" # in 2.6.24–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD
• lkddb module cpuid CONFIG_X86_CPUID : arch/x86_64/Kconfig : "/dev/cpu/*/cpuid - CPU information support" # in 2.5.45–2.5.75, 2.6.1–2.6.23

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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