CONFIG_BPF_JIT_ALWAYS_ON: Permanently enable BPF JIT and remove BPF interpreter

General informations

The Linux kernel configuration item CONFIG_BPF_JIT_ALWAYS_ON has multiple definitions:

Permanently enable BPF JIT and remove BPF interpreter found in kernel/bpf/Kconfig

The configuration item CONFIG_BPF_JIT_ALWAYS_ON:

• prompt: Permanently enable BPF JIT and remove BPF interpreter
• type: bool
• depends on: CONFIG_BPF_SYSCALL && CONFIG_HAVE_EBPF_JIT && CONFIG_BPF_JIT
• defined in kernel/bpf/Kconfig
• found in Linux kernels: 5.13–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

Enables BPF JIT and removes BPF interpreter to avoid speculative execution of BPF instructions by the interpreter.

When BPF_JIT_ALWAYS_ON is enabled, /proc/sys/net/core/bpf_jit_enable is permanently set to 1 and setting any other value than that will return failure.

Permanently enable BPF JIT and remove BPF interpreter found in init/Kconfig

The configuration item CONFIG_BPF_JIT_ALWAYS_ON:

• prompt: Permanently enable BPF JIT and remove BPF interpreter
• type: bool
• depends on: CONFIG_BPF_SYSCALL && CONFIG_HAVE_EBPF_JIT && CONFIG_BPF_JIT
• defined in init/Kconfig
• found in Linux kernels: 4.15–4.20, 5.0–5.12

Help text

Enables BPF JIT and removes BPF interpreter to avoid speculative execution of BPF instructions by the interpreter

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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