linux-kernel - Re: [PATCH 1/4] xen: x86: set the config XEN

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Message-ID: <CAKXUXMx2HvR5SYxpvH3=LSzv_v6S65n-F4FyUSD=STpAgSYcOw@mail.gmail.com>
Date:   Wed, 17 Aug 2022 06:28:39 +0200
From:   Lukas Bulwahn <lukas.bulwahn@...il.com>
To:     Jan Beulich <jbeulich@...e.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        X86 ML <x86@...nel.org>, "H . Peter Anvin" <hpa@...or.com>,
        kernel-janitors <kernel-janitors@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Juergen Gross <jgross@...e.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Oleksandr Tyshchenko <oleksandr_tyshchenko@...m.com>,
        xen-devel@...ts.xenproject.org
Subject: Re: [PATCH 1/4] xen: x86: set the config XEN_512GB after config change

On Wed, Aug 10, 2022 at 9:07 AM Jan Beulich <jbeulich@...e.com> wrote:
>
> On 10.08.2022 07:07, Lukas Bulwahn wrote:
> > --- a/arch/x86/configs/xen.config
> > +++ b/arch/x86/configs/xen.config
> > @@ -14,7 +14,7 @@ CONFIG_CPU_FREQ=y
> >
> >  # x86 xen specific config options
> >  CONFIG_XEN_PVH=y
> > -CONFIG_XEN_MAX_DOMAIN_MEMORY=500
> > +CONFIG_XEN_512GB=y
>
> Does this actually need setting here? The option's default is y, so
> it ought to be turned on "automatically". Hence I think it's only
> the stale line which wants deleting.
>

Jan, that makes sense. I will send a patch v2 to do so.

Lukas