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From: Michael Ellerman <mpe@ellerman.id.au>
To: Pingfan Liu <kernelfans@gmail.com>,
	Pingfan Liu <piliu@redhat.com>,
	Hari Bathini <hbathini@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: [RFC PATCH 5/5] powerpc/smp: Remap boot CPU onto core 0 if >= nr_cpu_ids
Date: Fri, 29 Dec 2023 23:07:45 +1100	[thread overview]
Message-ID: <87tto1jjou.fsf@mail.lhotse> (raw)
In-Reply-To: <20231229120107.2281153-5-mpe@ellerman.id.au>

Michael Ellerman <mpe@ellerman.id.au> writes:
> If nr_cpu_ids is too low to include the boot CPU, remap the boot CPU
> onto logical core 0.

Hi guys,

I finally got time to look at this issue. I think this series should fix
the problems that have been seen. I've tested this fairly thoroughly
with a qemu script, and also a few boots on a real machine.

If you can test it with your setups that would be great. Hopefully there
isn't some obscure case I've missed.

cheers

  reply	other threads:[~2023-12-29 12:08 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-29 12:01 [RFC PATCH 1/5] powerpc/smp: Adjust nr_cpu_ids to cover all threads of a core Michael Ellerman
2023-12-29 12:01 ` [RFC PATCH 2/5] powerpc/smp: Increase nr_cpu_ids to include the boot CPU Michael Ellerman
2023-12-29 12:01 ` [RFC PATCH 3/5] powerpc/smp: Lookup avail once per device tree node Michael Ellerman
2023-12-29 12:01 ` [RFC PATCH 4/5] powerpc/smp: Factor out assign_threads() Michael Ellerman
2024-01-02  4:34   ` Aneesh Kumar K.V
2024-02-14 13:10     ` Michael Ellerman
2023-12-29 12:01 ` [RFC PATCH 5/5] powerpc/smp: Remap boot CPU onto core 0 if >= nr_cpu_ids Michael Ellerman
2023-12-29 12:07   ` Michael Ellerman [this message]
2024-01-02  0:51     ` Pingfan Liu
2024-02-13 20:16       ` Wen Xiong
2024-01-02  4:46   ` Aneesh Kumar K.V
2024-02-09 15:56     ` Jiri Bohac
2024-02-14 13:12       ` Michael Ellerman
2024-02-15 13:00 ` [RFC PATCH 1/5] powerpc/smp: Adjust nr_cpu_ids to cover all threads of a core Michael Ellerman
2024-02-16  2:42   ` Pingfan Liu

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