aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/filesystems
diff options
context:
space:
mode:
authorDaniel Kiss <daniel.kiss@arm.com>2020-03-16 16:50:54 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2020-03-16 17:19:50 +0000
commit424037b77519d1537872442ba144dda1464988d7 (patch)
tree5d79baec7fddee62da9dc29c75498fcb8244f1c9 /Documentation/filesystems
parentde48bb369242fe17022fab3a2addc9c6dacad43f (diff)
downloadnet-424037b77519d1537872442ba144dda1464988d7.tar.gz
mm: smaps: Report arm64 guarded pages in smaps
The arm64 Branch Target Identification support is activated by marking executable pages as guarded pages. Report pages mapped this way in smaps to aid diagnostics. Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Daniel Kiss <daniel.kiss@arm.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/proc.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 99ca040e3f900e..ed5465d0f4350e 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -519,6 +519,7 @@ manner. The codes are the following:
hg - huge page advise flag
nh - no-huge page advise flag
mg - mergable advise flag
+ bt - arm64 BTI guarded page
Note that there is no guarantee that every flag and associated mnemonic will
be present in all further kernel releases. Things get changed, the flags may