#ifdef CONFIG_HOTPLUG_CPU
extern int arch_register_cpu(int num);
extern void arch_unregister_cpu(int);
-extern void start_cpu0(void);
+extern void soft_restart_cpu(void);
#ifdef CONFIG_DEBUG_HOTPLUG_CPU0
extern int _debug_hotplug_cpu(int cpu, int action);
#endif
if (dest == ret_from_fork)
return true;
#ifdef CONFIG_HOTPLUG_CPU
- if (dest == start_cpu0)
+ if (dest == soft_restart_cpu)
return true;
#endif
#ifdef CONFIG_FUNCTION_TRACER
#ifdef CONFIG_HOTPLUG_CPU
/*
- * Boot CPU0 entry point. It's called from play_dead(). Everything has been set
- * up already except stack. We just set up stack here. Then call
- * start_secondary().
+ * Entry point for soft restart of a CPU. Invoked from xxx_play_dead() for
+ * restarting the boot CPU or for restarting SEV guest CPUs after CPU hot
+ * unplug. Everything is set up already except the stack.
*/
-SYM_FUNC_START(start_cpu0)
+SYM_FUNC_START(soft_restart_cpu)
movl initial_stack, %ecx
movl %ecx, %esp
call *(initial_code)
1: jmp 1b
-SYM_FUNC_END(start_cpu0)
+SYM_FUNC_END(soft_restart_cpu)
#endif
/*
#ifdef CONFIG_HOTPLUG_CPU
/*
- * Boot CPU0 entry point. It's called from play_dead(). Everything has been set
- * up already except stack. We just set up stack here. Then call
- * start_secondary() via .Ljump_to_C_code.
+ * Entry point for soft restart of a CPU. Invoked from xxx_play_dead() for
+ * restarting the boot CPU or for restarting SEV guest CPUs after CPU hot
+ * unplug. Everything is set up already except the stack.
*/
-SYM_CODE_START(start_cpu0)
+SYM_CODE_START(soft_restart_cpu)
ANNOTATE_NOENDBR
UNWIND_HINT_END_OF_STACK
movq TASK_threadsp(%rcx), %rsp
jmp .Ljump_to_C_code
-SYM_CODE_END(start_cpu0)
+SYM_CODE_END(soft_restart_cpu)
#endif
#ifdef CONFIG_AMD_MEM_ENCRYPT
* If we get here, the VCPU was woken up again. Jump to CPU
* startup code to get it back online.
*/
- start_cpu0();
+ soft_restart_cpu();
}
#else /* CONFIG_HOTPLUG_CPU */
#define sev_es_play_dead native_play_dead