CONFIG_CPU_HAS_LBT: Support for the Loongson Binary Translation Extension

General informations

The Linux kernel configuration item CONFIG_CPU_HAS_LBT:

• prompt: Support for the Loongson Binary Translation Extension
• type: bool
• depends on: CONFIG_AS_HAS_LBT_EXTENSION
• defined in arch/loongarch/Kconfig
• found in Linux kernels: 6.6–6.14, 6.15-rc+HEAD

Help text

Loongson Binary Translation (LBT) introduces 4 scratch registers (SCR0 to SCR3), x86/ARM eflags (eflags) and x87 fpu stack pointer (ftop). Enabling this option allows the kernel to allocate and switch registers specific to LBT.

If you want to use this feature, such as the Loongson Architecture Translator (LAT), 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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