CONFIG_SETEND_EMULATION: Emulate SETEND instruction

General informations

The Linux kernel configuration item CONFIG_SETEND_EMULATION:

• prompt: Emulate SETEND instruction
• type: bool
• depends on: (none)
• defined in arch/arm64/Kconfig
• found in Linux kernels: 4.0–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD

Help text

The SETEND instruction alters the data-endianness of the AArch32 EL0, and is deprecated in ARMv8.

Say Y here to enable software emulation of the instruction for AArch32 userspace code. This feature can be controlled at runtime with the abi.setend sysctl.

Note: All the cpus on the system must have mixed endian support at EL0 for this feature to be enabled. If a new CPU - which doesn't support mixed endian - is hotplugged in after this feature has been enabled, there could be unexpected results in the applications.

If unsure, say Y

Hardware

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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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