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CONFIG_X86_MSR: /dev/cpu/*/msr - Model-specific register support

General informations

The Linux kernel configuration item CONFIG_X86_MSR has multiple definitions:

/dev/cpu/*/msr - Model-specific register support found in arch/i386/Kconfig

The configuration item CONFIG_X86_MSR:

• prompt: /dev/cpu/*/msr - Model-specific register support
• type: tristate
• depends on: (none)
• defined in arch/i386/Kconfig
• found in Linux kernels: 2.6.0–2.6.23
• modules built: msr, msr, msr

Help text

This device gives privileged processes access to the x86 Model-Specific Registers (MSRs). It is a character device with major 202 and minors 0 to 31 for /dev/cpu/0/msr to /dev/cpu/31/msr. MSR accesses are directed to a specific CPU on multi-processor systems.

/dev/cpu/*/msr - Model-specific register support found in arch/x86/Kconfig

The configuration item CONFIG_X86_MSR:

• prompt: /dev/cpu/*/msr - Model-specific register support
• type: tristate
• depends on: (none)
• defined in arch/x86/Kconfig
• found in Linux kernels: 2.6.24–2.6.39, 3.0–3.9, 3.10-rc+HEAD
• modules built: msr, msr, msr

Help text

This device gives privileged processes access to the x86 Model-Specific Registers (MSRs). It is a character device with major 202 and minors 0 to 31 for /dev/cpu/0/msr to /dev/cpu/31/msr. MSR accesses are directed to a specific CPU on multi-processor systems.

/dev/cpu/*/msr - Model-specific register support found in arch/x86_64/Kconfig

The configuration item CONFIG_X86_MSR:

• prompt: /dev/cpu/*/msr - Model-specific register support
• type: tristate
• depends on: (none)
• defined in arch/x86_64/Kconfig
• found in Linux kernels: 2.6.0–2.6.23
• modules built: msr, msr, msr

Help text

This device gives privileged processes access to the x86 Model-Specific Registers (MSRs). It is a character device with major 202 and minors 0 to 31 for /dev/cpu/0/msr to /dev/cpu/31/msr. MSR accesses are directed to a specific CPU on multi-processor systems.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module msr CONFIG_X86_MSR : arch/i386/Kconfig : "/dev/cpu/*/msr - Model-specific register support"
• lkddb module msr CONFIG_X86_MSR : arch/x86/Kconfig : "/dev/cpu/*/msr - Model-specific register support"
• lkddb module msr CONFIG_X86_MSR : arch/x86_64/Kconfig : "/dev/cpu/*/msr - Model-specific register support"

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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