linux-kernel - Re: [PATCH v4 2/6] arm/arm64/xen: use C inlines for privcmd

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Message-ID: <CA+CK2bAw62_6UpTR6316FVE3AiNV7fH7FkF55vRjE8R4=ocd+Q@mail.gmail.com>
Date:   Wed, 18 Dec 2019 16:11:29 -0500
From:   Pavel Tatashin <pasha.tatashin@...een.com>
To:     Julien Grall <julien@....org>
Cc:     James Morris <jmorris@...ei.org>, Sasha Levin <sashal@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, steve.capper@....com,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Marc Zyngier <maz@...nel.org>,
        James Morse <james.morse@....com>,
        Vladimir Murzin <vladimir.murzin@....com>,
        Mark Rutland <mark.rutland@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        allison@...utok.net, info@...ux.net, alexios.zavras@...el.com,
        Stefano Stabellini <sstabellini@...nel.org>,
        boris.ostrovsky@...cle.com, jgross@...e.com,
        Stefan Agner <stefan@...er.ch>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        xen-devel@...ts.xenproject.org,
        Russell King - ARM Linux admin <linux@...linux.org.uk>,
        Andrew Cooper <andrew.cooper3@...rix.com>
Subject: Re: [PATCH v4 2/6] arm/arm64/xen: use C inlines for privcmd_call

On Mon, Dec 16, 2019 at 3:41 PM Julien Grall <julien@....org> wrote:
>
> Hello,
>
> On 04/12/2019 23:20, Pavel Tatashin wrote:
> > privcmd_call requires to enable access to userspace for the
> > duration of the hypercall.
> >
> > Currently, this is done via assembly macros. Change it to C
> > inlines instead.
> >
> > Signed-off-by: Pavel Tatashin <pasha.tatashin@...een.com>
> > Acked-by: Stefano Stabellini <sstabellini@...nel.org>
>
> Reviewed-by: Julien Grall <julien@....org>

Great, thank you!

Pasha