CONFIG_PARAVIRT_SPINLOCKS: Paravirtualization layer for spinlocks

General informations

The Linux kernel configuration item CONFIG_PARAVIRT_SPINLOCKS has multiple definitions:

Paravirtualization layer for spinlocks found in arch/x86/Kconfig

The configuration item CONFIG_PARAVIRT_SPINLOCKS:

• prompt: Paravirtualization layer for spinlocks
• type: bool
• depends on: CONFIG_PARAVIRT && CONFIG_SMP
• defined in arch/x86/Kconfig
• found in Linux kernels: 2.6.30–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD

Help text

Paravirtualized spinlocks allow a pvops backend to replace the spinlock implementation with something virtualization-friendly (for example, block the virtual CPU rather than spinning).

It has a minimal impact on native kernels and gives a nice performance benefit on paravirtualized KVM / Xen kernels.

If you are unsure how to answer this question, answer Y.

found in arch/powerpc/platforms/pseries/Kconfig

The configuration item CONFIG_PARAVIRT_SPINLOCKS:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/powerpc/platforms/pseries/Kconfig
• found in Linux kernels: 5.9–5.19, 6.0–6.17, 6.18-rc+HEAD

Help text

(none)

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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