CONFIG_ADDRESS_MASKING: Linear Address Masking support

General informations

The Linux kernel configuration item CONFIG_ADDRESS_MASKING:

• prompt: Linear Address Masking support
• type: bool
• depends on: ( CONFIG_X86_64 ) && ( CONFIG_COMPILE_TEST || ! CONFIG_CPU_MITIGATIONS )
• defined in arch/x86/Kconfig
• found in Linux kernels: 6.4–6.12, 6.13-rc+HEAD

Help text

Linear Address Masking (LAM) modifies the checking that is applied to 64-bit linear addresses, allowing software to use of the untranslated address bits for metadata.

The capability can be used for efficient address sanitizers (ASAN) implementation and for optimizations in JITs.

Hardware

LKDDb

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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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