diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/x86/kernel/crash.c')
-rw-r--r-- | ANDROID_3.4.5/arch/x86/kernel/crash.c | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/ANDROID_3.4.5/arch/x86/kernel/crash.c b/ANDROID_3.4.5/arch/x86/kernel/crash.c deleted file mode 100644 index 13ad8997..00000000 --- a/ANDROID_3.4.5/arch/x86/kernel/crash.c +++ /dev/null @@ -1,106 +0,0 @@ -/* - * Architecture specific (i386/x86_64) functions for kexec based crash dumps. - * - * Created by: Hariprasad Nellitheertha (hari@in.ibm.com) - * - * Copyright (C) IBM Corporation, 2004. All rights reserved. - * - */ - -#include <linux/init.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/smp.h> -#include <linux/reboot.h> -#include <linux/kexec.h> -#include <linux/delay.h> -#include <linux/elf.h> -#include <linux/elfcore.h> - -#include <asm/processor.h> -#include <asm/hardirq.h> -#include <asm/nmi.h> -#include <asm/hw_irq.h> -#include <asm/apic.h> -#include <asm/hpet.h> -#include <linux/kdebug.h> -#include <asm/cpu.h> -#include <asm/reboot.h> -#include <asm/virtext.h> - -int in_crash_kexec; - -#if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC) - -static void kdump_nmi_callback(int cpu, struct pt_regs *regs) -{ -#ifdef CONFIG_X86_32 - struct pt_regs fixed_regs; -#endif - -#ifdef CONFIG_X86_32 - if (!user_mode_vm(regs)) { - crash_fixup_ss_esp(&fixed_regs, regs); - regs = &fixed_regs; - } -#endif - crash_save_cpu(regs, cpu); - - /* Disable VMX or SVM if needed. - * - * We need to disable virtualization on all CPUs. - * Having VMX or SVM enabled on any CPU may break rebooting - * after the kdump kernel has finished its task. - */ - cpu_emergency_vmxoff(); - cpu_emergency_svm_disable(); - - disable_local_APIC(); -} - -static void kdump_nmi_shootdown_cpus(void) -{ - in_crash_kexec = 1; - nmi_shootdown_cpus(kdump_nmi_callback); - - disable_local_APIC(); -} - -#else -static void kdump_nmi_shootdown_cpus(void) -{ - /* There are no cpus to shootdown */ -} -#endif - -void native_machine_crash_shutdown(struct pt_regs *regs) -{ - /* This function is only called after the system - * has panicked or is otherwise in a critical state. - * The minimum amount of code to allow a kexec'd kernel - * to run successfully needs to happen here. - * - * In practice this means shooting down the other cpus in - * an SMP system. - */ - /* The kernel is broken so disable interrupts */ - local_irq_disable(); - - kdump_nmi_shootdown_cpus(); - - /* Booting kdump kernel with VMX or SVM enabled won't work, - * because (among other limitations) we can't disable paging - * with the virt flags. - */ - cpu_emergency_vmxoff(); - cpu_emergency_svm_disable(); - - lapic_shutdown(); -#if defined(CONFIG_X86_IO_APIC) - disable_IO_APIC(); -#endif -#ifdef CONFIG_HPET_TIMER - hpet_disable(); -#endif - crash_save_cpu(regs, safe_smp_processor_id()); -} |