Messages in this thread Patch in this message | | | Date | Thu, 13 Dec 2007 15:55:44 -0800 | From | venkatesh.pallipadi@intel ... | Subject | [RFC PATCH 01/12] PAT 64b: Add cpu_shutdown() support |
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Doesn't do anything yet.
Based on a earlier patch by Eric Biederman and Andi Kleen.
Simple forward port of cpu-shutdown.patch to x86 tree.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> ---
Index: linux-2.6/arch/x86/kernel/reboot_64.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/reboot_64.c 2007-12-11 03:30:35.000000000 -0800 +++ linux-2.6/arch/x86/kernel/reboot_64.c 2007-12-11 03:30:46.000000000 -0800 @@ -113,6 +113,7 @@ #endif disable_IO_APIC(); + cpu_shutdown(); #ifdef CONFIG_HPET_TIMER hpet_disable(); Index: linux-2.6/arch/x86/kernel/setup64.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/setup64.c 2007-12-11 03:30:35.000000000 -0800 +++ linux-2.6/arch/x86/kernel/setup64.c 2007-12-11 03:30:46.000000000 -0800 @@ -293,3 +293,7 @@ raw_local_save_flags(kernel_eflags); } + +void cpu_shutdown(void) +{ +} Index: linux-2.6/include/asm-x86/processor_64.h =================================================================== --- linux-2.6.orig/include/asm-x86/processor_64.h 2007-12-11 03:30:35.000000000 -0800 +++ linux-2.6/include/asm-x86/processor_64.h 2007-12-11 03:30:46.000000000 -0800 @@ -100,6 +100,7 @@ extern char ignore_irq13; extern void identify_cpu(struct cpuinfo_x86 *); +extern void cpu_shutdown(void); extern void print_cpu_info(struct cpuinfo_x86 *); extern void init_scattered_cpuid_features(struct cpuinfo_x86 *c); extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c); Index: linux-2.6/arch/x86/kernel/smp_64.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/smp_64.c 2007-10-25 02:45:41.000000000 -0700 +++ linux-2.6/arch/x86/kernel/smp_64.c 2007-12-11 03:36:31.000000000 -0800 @@ -471,6 +471,7 @@ */ cpu_clear(smp_processor_id(), cpu_online_map); disable_local_APIC(); + cpu_shutdown(); for (;;) halt(); } --
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