[PATCH] kdump: Kconfig

- config option CONFIG_CRASH_DUMP

- Made it dependent on HIGHMEM.  This is required as capture kernel treats
  the previous kernel's memory as high memmory and stitches a PTE for
  accessing it.

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 0f391cbf116e..6c02336fe2e4 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -970,6 +970,13 @@ config KEXEC
           support.  As of this writing the exact hardware interface is
           strongly in flux, so no good recommendation can be made.
 
+config CRASH_DUMP
+        bool "kernel crash dumps (EXPERIMENTAL)"
+        depends on EMBEDDED
+        depends on EXPERIMENTAL
+        depends on HIGHMEM
+        help
+          Generate crash dump after being started by kexec.
 endmenu