linux-kernel - Re: [patch V4 00/37] cpu/hotplug, x86: Reworked parallel CPU bringup

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Message-ID: <f918a8af-5a9b-1309-e19a-4f3f09ebab7f@gmx.de>
Date:   Sat, 13 May 2023 23:00:45 +0200
From:   Helge Deller <deller@....de>
To:     LKML <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     x86@...nel.org, David Woodhouse <dwmw2@...radead.org>,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Brian Gerst <brgerst@...il.com>,
        Arjan van de Veen <arjan@...ux.intel.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Paul McKenney <paulmck@...nel.org>,
        Tom Lendacky <thomas.lendacky@....com>,
        Sean Christopherson <seanjc@...gle.com>,
        Paul Menzel <pmenzel@...gen.mpg.de>,
        "Guilherme G. Piccoli" <gpiccoli@...lia.com>,
        Piotr Gorski <lucjan.lucjanov@...il.com>,
        Usama Arif <usama.arif@...edance.com>,
        Juergen Gross <jgross@...e.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        xen-devel@...ts.xenproject.org,
        Russell King <linux@...linux.org.uk>,
        Arnd Bergmann <arnd@...db.de>,
        linux-arm-kernel@...ts.infradead.org,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Guo Ren <guoren@...nel.org>,
        linux-csky@...r.kernel.org,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-mips@...r.kernel.org,
        "James E.J. Bottomley" <James.Bottomley@...senpartnership.com>,
        linux-parisc@...r.kernel.org,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        linux-riscv@...ts.infradead.org,
        Mark Rutland <mark.rutland@....com>,
        Sabin Rapan <sabrapan@...zon.com>,
        "Michael Kelley (LINUX)" <mikelley@...rosoft.com>,
        Ross Philipson <ross.philipson@...cle.com>,
        Oleksandr Natalenko <oleksandr@...alenko.name>
Subject: Re: [patch V4 00/37] cpu/hotplug, x86: Reworked parallel CPU bringup

Hi Thomas,
> On pátek 12. května 2023 23:06:56 CEST Thomas Gleixner wrote:
>> This is version 4 of the reworked parallel bringup series. Version 3 can be
>> found here:
>>
>>     https://lore.kernel.org/lkml/20230508181633.089804905@linutronix.de
>> ...
>>
>> Other than that there are no changes and the other details are all the same
>> as in V3 and V2.
>>
>> It's also available from git:
>>
>>      git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git hotplug

I tested your series on the parisc architecture just to make sure that it still works
with your patch applied.
On parisc the CPU bringup happens later in the boot process (after the inventory),
so your patch won't have an direct impact anyway.
But at least everything still works, incl. manual CPU enable/disable.

So, you may add
Tested-by: Helge Deller <deller@....de> # parisc

Thanks!
Helge