diff options
Diffstat (limited to 'arch/sh/kernel/machine_kexec.c')
| -rw-r--r-- | arch/sh/kernel/machine_kexec.c | 32 |
1 files changed, 27 insertions, 5 deletions
diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c index 25b4748..c44efb7 100644 --- a/arch/sh/kernel/machine_kexec.c +++ b/arch/sh/kernel/machine_kexec.c @@ -14,20 +14,21 @@ #include <linux/delay.h> #include <linux/reboot.h> #include <linux/numa.h> +#include <linux/suspend.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/mmu_context.h> #include <asm/io.h> #include <asm/cacheflush.h> -typedef NORET_TYPE void (*relocate_new_kernel_t)( - unsigned long indirection_page, - unsigned long reboot_code_buffer, - unsigned long start_address) ATTRIB_NORET; +typedef void (*relocate_new_kernel_t)(unsigned long indirection_page, + unsigned long reboot_code_buffer, + unsigned long start_address); extern const unsigned char relocate_new_kernel[]; extern const unsigned int relocate_new_kernel_size; extern void *gdb_vbr_vector; +extern void *vbr_base; void machine_shutdown(void) { @@ -72,7 +73,6 @@ static void kexec_info(struct kimage *image) */ void machine_kexec(struct kimage *image) { - unsigned long page_list; unsigned long reboot_code_buffer; relocate_new_kernel_t rnk; @@ -92,6 +92,11 @@ void machine_kexec(struct kimage *image) *ptr = (unsigned long) phys_to_virt(*ptr); } +#ifdef CONFIG_KEXEC_JUMP + if (image->preserve_context) + save_processor_state(); +#endif + /* Interrupts aren't acceptable while we reboot */ local_irq_disable(); @@ -117,6 +122,23 @@ void machine_kexec(struct kimage *image) /* now call it */ rnk = (relocate_new_kernel_t) reboot_code_buffer; (*rnk)(page_list, reboot_code_buffer, image->start); + +#ifdef CONFIG_KEXEC_JUMP + asm volatile("ldc %0, vbr" : : "r" (&vbr_base) : "memory"); + local_irq_disable(); + clear_bl_bit(); + if (image->preserve_context) + restore_processor_state(); + + /* Convert page list back to physical addresses, what a mess. */ + for (ptr = &image->head; (entry = *ptr) && !(entry & IND_DONE); + ptr = (*ptr & IND_INDIRECTION) ? + phys_to_virt(*ptr & PAGE_MASK) : ptr + 1) { + if (*ptr & IND_SOURCE || *ptr & IND_INDIRECTION || + *ptr & IND_DESTINATION) + *ptr = virt_to_phys(*ptr); + } +#endif } void arch_crash_save_vmcoreinfo(void) |