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Subject[PATCH 4.4 237/266] x86/speculation/l1tf: Document l1tf in sysfs
From: Ben Hutchings <>

The vulnerabilties/l1tf attribute was added by commit 17dbca119312
"x86/speculation/l1tf: Add sysfs reporting for l1tf", which has
already been backported to 3.16, but only documented in commit
d90a7a0ec83f "x86/bugs, kvm: Introduce boot-time control of L1TF
mitigations", which has not and probbaly won't be.

Add just that line of documentation for now.

Signed-off-by: Ben Hutchings <>
Signed-off-by: Greg Kroah-Hartman <>
Documentation/ABI/testing/sysfs-devices-system-cpu | 1 +
1 file changed, 1 insertion(+)

--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -277,6 +277,7 @@ What: /sys/devices/system/cpu/vulnerabi
+ /sys/devices/system/cpu/vulnerabilities/l1tf
Date: January 2018
Contact: Linux kernel mailing list <>
Description: Information about CPU vulnerabilities

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