#include <linux/delay.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
+#include <linux/reboot.h>
#include <asm/system.h>
#include <asm/uaccess.h>
extern pgm_check_handler_t do_protection_exception;
extern pgm_check_handler_t do_dat_exception;
-extern pgm_check_handler_t do_pseudo_page_fault;
#ifdef CONFIG_PFAULT
extern int pfault_init(void);
extern void pfault_fini(void);
#define stack_pointer ({ void **sp; asm("la %0,0(15)" : "=&d" (sp)); sp; })
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
#define FOURLONG "%08lx %08lx %08lx %08lx\n"
static int kstack_depth_to_print = 12;
-#else /* CONFIG_ARCH_S390X */
+#else /* CONFIG_64BIT */
#define FOURLONG "%016lx %016lx %016lx %016lx\n"
static int kstack_depth_to_print = 20;
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
/*
* For show_trace we have tree different stack to consider:
sp = __show_trace(sp, S390_lowcore.async_stack - ASYNC_SIZE,
S390_lowcore.async_stack);
if (task)
- __show_trace(sp, (unsigned long) task->thread_info,
- (unsigned long) task->thread_info + THREAD_SIZE);
+ __show_trace(sp, (unsigned long) task_stack_page(task),
+ (unsigned long) task_stack_page(task) + THREAD_SIZE);
else
__show_trace(sp, S390_lowcore.thread_info,
S390_lowcore.thread_info + THREAD_SIZE);
{
struct pt_regs *regs;
- regs = __KSTK_PTREGS(task);
+ regs = task_pt_regs(task);
buffer += sprintf(buffer, "task: %p, ksp: %p\n",
task, (void *)task->thread.ksp);
buffer += sprintf(buffer, "User PSW : %p %p\n",
info.si_signo = signal;
info.si_errno = 0;
info.si_code = ILL_ILLOPC;
- info.si_addr = (void *) location;
+ info.si_addr = (void __user *) location;
do_trap(interruption_code, signal,
"illegal operation", regs, &info);
}
asmlinkage void kernel_stack_overflow(struct pt_regs * regs)
{
- die("Kernel stack overflow", regs, 0);
+ bust_spinlocks(1);
+ printk("Kernel stack overflow.\n");
+ show_regs(regs);
+ bust_spinlocks(0);
panic("Corrupt kernel stack, can't continue.");
}
-
/* init is done in lowcore.S and head.S */
void __init trap_init(void)
pgm_check_table[0x11] = &do_dat_exception;
pgm_check_table[0x12] = &translation_exception;
pgm_check_table[0x13] = &special_op_exception;
-#ifndef CONFIG_ARCH_S390X
- pgm_check_table[0x14] = &do_pseudo_page_fault;
-#else /* CONFIG_ARCH_S390X */
+#ifdef CONFIG_64BIT
pgm_check_table[0x38] = &do_dat_exception;
pgm_check_table[0x39] = &do_dat_exception;
pgm_check_table[0x3A] = &do_dat_exception;
pgm_check_table[0x3B] = &do_dat_exception;
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
pgm_check_table[0x15] = &operand_exception;
pgm_check_table[0x1C] = &space_switch_exception;
pgm_check_table[0x1D] = &hfp_sqrt_exception;
pgm_check_table[0x40] = &do_monitor_call;
if (MACHINE_IS_VM) {
+#ifdef CONFIG_PFAULT
/*
- * First try to get pfault pseudo page faults going.
- * If this isn't available turn on pagex page faults.
+ * Try to get pfault pseudo page faults going.
*/
-#ifdef CONFIG_PFAULT
- /* request the 0x2603 external interrupt */
if (register_early_external_interrupt(0x2603, pfault_interrupt,
&ext_int_pfault) != 0)
panic("Couldn't request external interrupt 0x2603");
/* Tough luck, no pfault. */
unregister_early_external_interrupt(0x2603, pfault_interrupt,
&ext_int_pfault);
-#endif
-#ifndef CONFIG_ARCH_S390X
- cpcmd("SET PAGEX ON", NULL, 0);
#endif
}
}