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Subject: Re: [PATCH] use x86 cpu park to speedup smp_init in kexec situation
To:     Thomas Gleixner <tglx@linutronix.de>,
        Andy Lutomirski <luto@kernel.org>
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        <hewenliang4@huawei.com>, <hushiyuan@huawei.com>,
        <luolongjun@huawei.com>, <hejingxian@huawei.com>
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From:   "shenkai (D)" <shenkai8@huawei.com>
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Date:   Thu, 17 Dec 2020 22:53:26 +0800
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在 2020/12/16 23:31, Thomas Gleixner 写道:
> OTOH, the advantage of INIT/SIPI is that the AP comes up in a well known
> state.

We can set APs to a known state explicitly like BSP will do in kexec 
case (what we also tried

to do in the patch). Maybe it is not a big problem?

Best regards

Kai