linux-kernel - Re: [PATCH v2 07/17] arm64: ssbd: Skip apply

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Message-ID: <86vaas859z.wl-marc.zyngier@arm.com>
Date:   Sat, 09 Jun 2018 14:21:12 +0100
From:   Marc Zyngier <marc.zyngier@....com>
To:     Jon Masters <jcm@...masters.org>
Cc:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <kvmarm@...ts.cs.columbia.edu>,
        Will Deacon <will.deacon@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andy Lutomirski <luto@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Christoffer Dall <christoffer.dall@....com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Dominik Brodowski <linux@...inikbrodowski.net>,
        Julien Grall <julien.grall@....com>,
        Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH v2 07/17] arm64: ssbd: Skip apply_ssbd if not using dynamic mitigation

On Sat, 09 Jun 2018 14:03:51 +0100,
Jon Masters wrote:
> 
> On 05/29/2018 08:11 AM, Marc Zyngier wrote:
> 
> > +void __init arm64_enable_wa2_handling(struct alt_instr *alt,
> > +				      __le32 *origptr, __le32 *updptr,
> > +				      int nr_inst)
> 
> Where does the name "wa2" come from here?

ARCH_WORKAROUND_2, as described in the SMCCC specification.

	M.

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