x86: update description for memtest boot parameter

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 6 insertions, 1 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index f6d5d5b9b2b1..10c4b8b75c96 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1308,8 +1308,13 @@ and is between 256 and 4096 characters. It is defined in the file
 
         memtest=        [KNL,X86] Enable memtest
                         Format: <integer>
-                        range: 0,4 : pattern number
                         default : 0 <disable>
+                        Specifies the number of memtest passes to be
+                        performed. Each pass selects another test
+                        pattern from a given set of patterns. Memtest
+                        fills the memory with this pattern, validates
+                        memory contents and reserves bad memory
+                        regions that are detected.
 
         meye.*=         [HW] Set MotionEye Camera parameters
                         See Documentation/video4linux/meye.txt.