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| author | Vincenzo Frascino <vincenzo.frascino@arm.com> | 2019-09-06 10:52:39 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2020-09-04 12:46:07 +0100 |
| commit | df9d7a22dd21c926e8175ccc6e176cb45fc7cb09 (patch) | |
| tree | 26602918ecfca502f5c549107a42c9812d9719fd /Documentation/arm64/cpu-feature-registers.rst | |
| parent | 89b94df9dfb16fe29f9d2085b0a98116dc34d814 (diff) | |
arm64: mte: Add Memory Tagging Extension documentation
Memory Tagging Extension (part of the ARMv8.5 Extensions) provides
a mechanism to detect the sources of memory related errors which
may be vulnerable to exploitation, including bounds violations,
use-after-free, use-after-return, use-out-of-scope and use before
initialization errors.
Add Memory Tagging Extension documentation for the arm64 linux
kernel support.
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Co-developed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Cc: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/arm64/cpu-feature-registers.rst')
| -rw-r--r-- | Documentation/arm64/cpu-feature-registers.rst | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst index f28853f80089..328e0c454fbd 100644 --- a/Documentation/arm64/cpu-feature-registers.rst +++ b/Documentation/arm64/cpu-feature-registers.rst @@ -175,6 +175,8 @@ infrastructure: +------------------------------+---------+---------+ | Name | bits | visible | +------------------------------+---------+---------+ + | MTE | [11-8] | y | + +------------------------------+---------+---------+ | SSBS | [7-4] | y | +------------------------------+---------+---------+ | BT | [3-0] | y | |