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Subject[PATCH v5 71/75] x86/head/64: Rename start_cpu0
Date
From: Joerg Roedel <jroedel@suse.de>

For SEV-ES this entry point will be used for restarting APs after they
have been offlined. Remove the '0' from the name to reflect that.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
arch/x86/include/asm/cpu.h | 2 +-
arch/x86/kernel/head_32.S | 4 ++--
arch/x86/kernel/head_64.S | 6 +++---
arch/x86/kernel/smpboot.c | 4 ++--
4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/x86/include/asm/cpu.h b/arch/x86/include/asm/cpu.h
index da78ccbd493b..1536b607971f 100644
--- a/arch/x86/include/asm/cpu.h
+++ b/arch/x86/include/asm/cpu.h
@@ -29,7 +29,7 @@ struct x86_cpu {
#ifdef CONFIG_HOTPLUG_CPU
extern int arch_register_cpu(int num);
extern void arch_unregister_cpu(int);
-extern void start_cpu0(void);
+extern void start_cpu(void);
#ifdef CONFIG_DEBUG_HOTPLUG_CPU0
extern int _debug_hotplug_cpu(int cpu, int action);
#endif
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index f66a6b90f954..aad62c677486 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -174,12 +174,12 @@ SYM_CODE_END(startup_32)
* up already except stack. We just set up stack here. Then call
* start_secondary().
*/
-SYM_FUNC_START(start_cpu0)
+SYM_FUNC_START(start_cpu)
movl initial_stack, %ecx
movl %ecx, %esp
call *(initial_code)
1: jmp 1b
-SYM_FUNC_END(start_cpu0)
+SYM_FUNC_END(start_cpu)
#endif

/*
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index a708107688a2..352311c5d8d1 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -309,15 +309,15 @@ SYM_CODE_END(secondary_startup_64)

#ifdef CONFIG_HOTPLUG_CPU
/*
- * Boot CPU0 entry point. It's called from play_dead(). Everything has been set
+ * CPU 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.
*/
-SYM_CODE_START(start_cpu0)
+SYM_CODE_START(start_cpu)
UNWIND_HINT_EMPTY
movq initial_stack(%rip), %rsp
jmp .Ljump_to_C_code
-SYM_CODE_END(start_cpu0)
+SYM_CODE_END(start_cpu)
#endif

/* Both SMP bootup and ACPI suspend change these variables */
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index fb55d28332e2..c6311c55b84c 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1726,7 +1726,7 @@ static inline void mwait_play_dead(void)
* If NMI wants to wake up CPU0, start CPU0.
*/
if (wakeup_cpu0())
- start_cpu0();
+ start_cpu();
}
}

@@ -1741,7 +1741,7 @@ void hlt_play_dead(void)
* If NMI wants to wake up CPU0, start CPU0.
*/
if (wakeup_cpu0())
- start_cpu0();
+ start_cpu();
}
}

--
2.27.0
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