Messages in this thread Patch in this message | | | Date | Wed, 5 Aug 2009 07:20:00 -0400 | From | Amerigo Wang <> | Subject | [Patch 6/7] powerpc: implement crashkernel=auto |
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Since in patch 2/7 we already implement the generic part, this will add the rest part for powerpc.
Signed-off-by: WANG Cong <amwang@redhat.com>
--- Index: linux-2.6/arch/powerpc/include/asm/kexec.h =================================================================== --- linux-2.6.orig/arch/powerpc/include/asm/kexec.h +++ linux-2.6/arch/powerpc/include/asm/kexec.h @@ -39,6 +39,29 @@ typedef void (*crash_shutdown_t)(void); #ifdef CONFIG_KEXEC +#ifdef CONFIG_KEXEC_AUTO_RESERVE +#ifndef KEXEC_AUTO_RESERVED_SIZE +#define KEXEC_AUTO_RESERVED_SIZE 1ULL<<28 /* 256M */ +#endif +#ifndef KEXEC_AUTO_THRESHOLD +#define KEXEC_AUTO_THRESHOLD 1ULL<<32 /* 4G */ +#endif +static inline +unsigned long long arch_default_crash_size(unsigned long long total_size) +{ + if (total_size < KEXEC_AUTO_THRESHOLD) + return 0; + else + return KEXEC_AUTO_RESERVED_SIZE; +} +static inline +unsigned long long arch_default_crash_base(void) +{ + /* On ppc, 0 means find the base address automatically. */ + return 0; +} +#endif + /* * This function is responsible for capturing register states if coming * via panic or invoking dump using sysrq-trigger.
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