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| author | Will Deacon <will@kernel.org> | 2022-03-14 19:00:37 +0000 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-03-14 19:00:37 +0000 |
| commit | b523d6b80fbcf45f64f5010424a273c32df79e7a (patch) | |
| tree | dae20ed70ed7e5c6d963f9b776e4512d973605b9 /Documentation/arm64/memory-tagging-extension.rst | |
| parent | 0d3d031595cbac3d57a68e600a7facab1ecbdece (diff) | |
| parent | 4c022f57ad954e1ad6f838bd3b7d54e459745eeb (diff) | |
Merge branch 'for-next/docs' into for-next/core
* for-next/docs:
arm64/mte: Clarify mode reported by PR_GET_TAGGED_ADDR_CTRL
arm64: booting.rst: Clarify on requiring non-secure EL2
Diffstat (limited to 'Documentation/arm64/memory-tagging-extension.rst')
| -rw-r--r-- | Documentation/arm64/memory-tagging-extension.rst | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/arm64/memory-tagging-extension.rst b/Documentation/arm64/memory-tagging-extension.rst index 5a70d7a3ca12..6ccbdc408df6 100644 --- a/Documentation/arm64/memory-tagging-extension.rst +++ b/Documentation/arm64/memory-tagging-extension.rst @@ -91,8 +91,9 @@ mode is specified, the program will run in that mode. If multiple modes are specified, the mode is selected as described in the "Per-CPU preferred tag checking modes" section below. -The current tag check fault mode can be read using the -``prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0)`` system call. +The current tag check fault configuration can be read using the +``prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0)`` system call. If +multiple modes were requested then all will be reported. Tag checking can also be disabled for a user thread by setting the ``PSTATE.TCO`` bit with ``MSR TCO, #1``. |