CONFIG_RISCV_ISA_SUPM: Supm extension for userspace pointer masking

General informations

The Linux kernel configuration item CONFIG_RISCV_ISA_SUPM:

• prompt: Supm extension for userspace pointer masking
• type: bool
• depends on: CONFIG_64BIT
• defined in arch/riscv/Kconfig
• found in Linux kernels: 6.13-rc+HEAD

Help text

Add support for pointer masking in userspace (Supm) when the underlying hardware extension (Smnpm or Ssnpm) is detected at boot.

If this option is disabled, userspace will be unable to use the prctl(PR_{SET,GET}_TAGGED_ADDR_CTRL) API.

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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