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

From: Thomas Gleixner
Date: Sun Jul 02 2017 - 13:55:08 EST


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?

> /* Setup local timer */
> x86_init.timers.setup_percpu_clockev();
>
> --
> 2.5.5
>
>
>
>