Messages in this thread Patch in this message | | | Date | Wed, 5 Aug 2009 07:19:51 -0400 | From | Amerigo Wang <> | Subject | [Patch 5/7] powerpc: add CONFIG_KEXEC_AUTO_RESERVE |
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Introduce a new config option KEXEC_AUTO_RESERVE for powerpc.
Signed-off-by: WANG Cong <amwang@redhat.com>
--- Index: linux-2.6/arch/powerpc/Kconfig =================================================================== --- linux-2.6.orig/arch/powerpc/Kconfig +++ linux-2.6/arch/powerpc/Kconfig @@ -346,6 +346,16 @@ config KEXEC support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made. +config KEXEC_AUTO_RESERVE + 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". + On PPC, 256M is reserved and only when you have memory > 4G. + config CRASH_DUMP bool "Build a kdump crash kernel" depends on PPC64 || 6xx
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