[lkml]   [2009]   [Aug]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[Patch 6/8] powerpc: add CONFIG_KEXEC_AUTO_RESERVE

Introduce a new config option KEXEC_AUTO_RESERVE for powerpc.

Signed-off-by: WANG Cong <>
Acked-by: Neil Horman <>


Index: linux-2.6/arch/powerpc/Kconfig
--- linux-2.6.orig/arch/powerpc/Kconfig
+++ linux-2.6/arch/powerpc/Kconfig
@@ -346,6 +346,17 @@ config KEXEC
support. As of this writing the exact hardware interface is
strongly in flux, so no good recommendation can be made.

+ bool "automatically reserve memory for kexec kernel"
+ depends on KEXEC
+ default y
+ ---help---
+ Automatically reserve memory for a kexec kernel, so that you don't
+ need to specify numbers for the "crashkernel=X@Y" boot option,
+ instead you can use "crashkernel=auto". To make this work, you need
+ to have more than 4G memory. On PPC, 256M is reserved, 1/32 memory
+ on PPC64, but it will not exceed 1T/32.
bool "Build a kdump crash kernel"
depends on PPC64 || 6xx

 \ /
  Last update: 2009-08-21 09:01    [W:0.129 / U:40.568 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site