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| author | Mark Rutland <mark.rutland@arm.com> | 2018-12-07 21:39:31 +0300 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2018-12-13 19:42:47 +0300 |
| commit | fbedc599e9b891a6756b1c9bc2eead02b02cce77 (patch) | |
| tree | 1b832edd542d8edec1cd1df8519a7291bef53bc1 /Documentation/arm64/cpu-feature-registers.txt | |
| parent | 84931327a807a4dd65d0d6b53a8ae47845c91f79 (diff) | |
| download | linux-fbedc599e9b891a6756b1c9bc2eead02b02cce77.tar.xz | |
arm64: docs: document pointer authentication
Now that we've added code to support pointer authentication, add some
documentation so that people can figure out if/how to use it.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com>
Reviewed-by: Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
Cc: Andrew Jones <drjones@redhat.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'Documentation/arm64/cpu-feature-registers.txt')
| -rw-r--r-- | Documentation/arm64/cpu-feature-registers.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/arm64/cpu-feature-registers.txt b/Documentation/arm64/cpu-feature-registers.txt index 7964f03846b1..d4b4dd1fe786 100644 --- a/Documentation/arm64/cpu-feature-registers.txt +++ b/Documentation/arm64/cpu-feature-registers.txt @@ -184,12 +184,20 @@ infrastructure: x--------------------------------------------------x | Name | bits | visible | |--------------------------------------------------| + | GPI | [31-28] | y | + |--------------------------------------------------| + | GPA | [27-24] | y | + |--------------------------------------------------| | LRCPC | [23-20] | y | |--------------------------------------------------| | FCMA | [19-16] | y | |--------------------------------------------------| | JSCVT | [15-12] | y | |--------------------------------------------------| + | API | [11-8] | y | + |--------------------------------------------------| + | APA | [7-4] | y | + |--------------------------------------------------| | DPB | [3-0] | y | x--------------------------------------------------x |