CONFIG_PID_IN_CONTEXTIDR: Write the current PID to the CONTEXTIDR register

General informations

The Linux kernel configuration item CONFIG_PID_IN_CONTEXTIDR has multiple definitions:

Write the current PID to the CONTEXTIDR register found in arch/arm64/Kconfig.debug

The configuration item CONFIG_PID_IN_CONTEXTIDR:

• prompt: Write the current PID to the CONTEXTIDR register
• type: bool
• depends on: (none)
• defined in arch/arm64/Kconfig.debug
• found in Linux kernels: 3.9–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD

Help text

Enabling this option causes the kernel to write the current PID to the CONTEXTIDR register, at the expense of some additional instructions during context switch. Say Y here only if you are planning to use hardware trace tools with this kernel.

Write the current PID to the CONTEXTIDR register found in arch/arm/Kconfig.debug

The configuration item CONFIG_PID_IN_CONTEXTIDR:

• prompt: Write the current PID to the CONTEXTIDR register
• type: bool
• depends on: CONFIG_CPU_COPY_V6
• defined in arch/arm/Kconfig.debug
• found in Linux kernels: 3.6–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD

Help text

Enabling this option causes the kernel to write the current PID to the PROCID field of the CONTEXTIDR register, at the expense of some additional instructions during context switch. Say Y here only if you are planning to use hardware trace tools with this kernel.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

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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