diff options
Diffstat (limited to 'arch/arm/kernel/machine_kexec.c')
-rw-r--r-- | arch/arm/kernel/machine_kexec.c | 50 |
1 files changed, 20 insertions, 30 deletions
diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index c1b4463dcc83..764bd456d84f 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -12,12 +12,11 @@ #include <asm/mmu_context.h> #include <asm/cacheflush.h> #include <asm/mach-types.h> +#include <asm/system.h> extern const unsigned char relocate_new_kernel[]; extern const unsigned int relocate_new_kernel_size; -extern void setup_mm_for_reboot(char mode); - extern unsigned long kexec_start_address; extern unsigned long kexec_indirection_page; extern unsigned long kexec_mach_type; @@ -32,24 +31,6 @@ static atomic_t waiting_for_crash_ipi; int machine_kexec_prepare(struct kimage *image) { - unsigned long page_list; - void *reboot_code_buffer; - page_list = image->head & PAGE_MASK; - - reboot_code_buffer = page_address(image->control_code_page); - - /* Prepare parameters for reboot_code_buffer*/ - kexec_start_address = image->start; - kexec_indirection_page = page_list; - kexec_mach_type = machine_arch_type; - kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET; - - /* copy our kernel relocation code to the control code page */ - memcpy(reboot_code_buffer, - relocate_new_kernel, relocate_new_kernel_size); - - flush_icache_range((unsigned long) reboot_code_buffer, - (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); return 0; } @@ -100,26 +81,35 @@ void (*kexec_reinit)(void); void machine_kexec(struct kimage *image) { + unsigned long page_list; unsigned long reboot_code_buffer_phys; void *reboot_code_buffer; + + page_list = image->head & PAGE_MASK; + /* we need both effective and real address here */ reboot_code_buffer_phys = page_to_pfn(image->control_code_page) << PAGE_SHIFT; reboot_code_buffer = page_address(image->control_code_page); + /* Prepare parameters for reboot_code_buffer*/ + kexec_start_address = image->start; + kexec_indirection_page = page_list; + kexec_mach_type = machine_arch_type; + kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET; + + /* copy our kernel relocation code to the control code page */ + memcpy(reboot_code_buffer, + relocate_new_kernel, relocate_new_kernel_size); + + + flush_icache_range((unsigned long) reboot_code_buffer, + (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); printk(KERN_INFO "Bye!\n"); if (kexec_reinit) kexec_reinit(); - local_irq_disable(); - local_fiq_disable(); - setup_mm_for_reboot(0); /* mode is not used, so just pass 0*/ - flush_cache_all(); - outer_flush_all(); - outer_disable(); - cpu_proc_fin(); - outer_inv_all(); - flush_cache_all(); - cpu_reset(reboot_code_buffer_phys); + + soft_restart(reboot_code_buffer_phys); } |