Re: [PATCH v5 04/12] x86/apic: Move logical APIC ID away from apic_bsp_setup()

From: Dou Liyang
Date: Sun Jul 02 2017 - 22:02:58 EST


Hi, Thomas

At 07/03/2017 01:54 AM, Thomas Gleixner wrote:
On Fri, 30 Jun 2017, Dou Liyang wrote:
/*
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 93f0cda..d6721f0 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1347,8 +1347,11 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
}

default_setup_apic_routing();
- cpu0_logical_apicid = apic_bsp_setup(false);
-
+ apic_bsp_setup(false);
+ if (x2apic_mode)
+ cpu0_logical_apicid = apic_read(APIC_LDR);
+ else
+ cpu0_logical_apicid = GET_APIC_LOGICAL_ID(apic_read(APIC_LDR));

Can you please move that into a seperate helper function?


Yes, it will be a separate helper function in the next version.

Thanks,

dou.


/* Setup local timer */
x86_init.timers.setup_percpu_clockev();

--
2.5.5