Navigation: Linux Kernel Driver DataBase - web LKDDB: Main index - A index

CONFIG_ARM64_USER_VA_BITS_52: 52-bit (user)

General informations

The Linux kernel configuration item CONFIG_ARM64_USER_VA_BITS_52:

Help text

Enable 52-bit virtual addressing for userspace when explicitly requested via a hint to mmap(). The kernel will continue to use 48-bit virtual addresses for its own mappings.

NOTE: Enabling 52-bit virtual addressing in conjunction with ARMv8.3 Pointer Authentication will result in the PAC being reduced from 7 bits to 3 bits, which may have a significant impact on its susceptibility to brute-force attacks.

If unsure, select 48-bit virtual addressing instead.

Hardware

LKDDb

Raw data from LKDDb:

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

Automatic links from Google (and ads)

Custom Search

Popular queries:

Navigation: Linux Kernel Driver DataBase - web LKDDB: main index - A index

Automatically generated (in year 2024). See also LKDDb sources on GitLab