linux-kernel - Re: [patch V4 07/37] x86/smpboot: Restrict soft_restart

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Message-ID: <a242cbd8-3ae5-62b0-fbb8-92a51dd7bc18@linaro.org>
Date:   Tue, 13 Jun 2023 01:46:00 +0200
From:   Philippe Mathieu-Daudé <philmd@...aro.org>
To:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>
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>,
        Oleksandr Natalenko <oleksandr@...alenko.name>,
        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>,
        Helge Deller <deller@....de>, 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>
Subject: Re: [patch V4 07/37] x86/smpboot: Restrict soft_restart_cpu() to SEV

On 12/5/23 23:07, Thomas Gleixner wrote:
> From: Thomas Gleixner <tglx@...utronix.de>
> 
> Now that the CPU0 hotplug cruft is gone, the only user is AMD SEV.
> 
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> Tested-by: Michael Kelley <mikelley@...rosoft.com>
> ---
>   arch/x86/kernel/callthunks.c |    2 +-
>   arch/x86/kernel/head_32.S    |   14 --------------
>   arch/x86/kernel/head_64.S    |    2 +-
>   3 files changed, 2 insertions(+), 16 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@...aro.org>