1 files changed, 4 insertions, 3 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 12b7d938a897..dd0bfc291a68 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -475,10 +475,11 @@ running once the system is up.
                         See Documentation/block/as-iosched.txt and
                         Documentation/block/deadline-iosched.txt for details.
 
-        elfcorehdr=     [IA-32]
+        elfcorehdr=     [IA-32, X86_64]
                         Specifies physical address of start of kernel core
-                        image elf header.
-                        See Documentation/kdump.txt for details.
+                        image elf header. Generally kexec loader will
+                        pass this option to capture kernel.
+                        See Documentation/kdump/kdump.txt for details.
 
         enforcing       [SELINUX] Set initial enforcing status.
                         Format: {"0" | "1"}