From: Marc Zyngier <maz@kernel.org>
To: James Morse <james.morse@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
kvm@vger.kernel.org, Suzuki K Poulose <suzuki.poulose@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Will Deacon <will@kernel.org>,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 5/5] arm64: Enable and document ARM errata 1319367 and 1319537
Date: Mon, 07 Oct 2019 10:31:31 +0100 [thread overview]
Message-ID: <86tv8kzyto.wl-maz@kernel.org> (raw)
In-Reply-To: <6d41efac-3606-328a-0a18-f86ed070932c@arm.com>
On Thu, 03 Oct 2019 12:11:00 +0100,
James Morse <james.morse@arm.com> wrote:
>
> Hi Marc,
>
> On 25/09/2019 12:19, Marc Zyngier wrote:
> > Now that everything is in place, let's get the ball rolling
> > by allowing the corresponding config option to be selected.
> > Also add the required information to silicon_arrata.rst.
>
> > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> > index 3adcec05b1f6..c50cd4f83bc4 100644
> > --- a/arch/arm64/Kconfig
> > +++ b/arch/arm64/Kconfig
> > @@ -523,6 +523,16 @@ config ARM64_ERRATUM_1286807
> > invalidated has been observed by other observers. The
> > workaround repeats the TLBI+DSB operation.
> >
> > +config ARM64_ERRATUM_1319367
> > + bool "Cortex-A57/A72: Speculative AT instruction using out-of-context translation regime could cause subsequent request to generate an incorrect translation"
> > + default y
> > + help
> > + This option adds work arounds for ARM Cortex-A57 erratum 1319537
> > + and A72 erratum 1319367
> > +
> > + Cortex-A57 and A72 cores could end-up with corrupted TLBs by
> > + speculating an AT instruction during a guest context switch.
> > +
> > If unsure, say Y.
> >
> > config ARM64_ERRATUM_1463225
> >
>
> Nit: You pinched someone elses "If unsure, say Y."!
Ah! Well spotted.
Thanks,
M.
--
Jazz is not dead, it just smells funny.
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
prev parent reply other threads:[~2019-10-07 9:32 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-25 11:19 [PATCH 0/5] arm64: KVM: Add workaround for errata 1319367 and 1319537 Marc Zyngier
2019-09-25 11:19 ` [PATCH 1/5] arm64: Add ARM64_WORKAROUND_1319367 for all A57 and A72 versions Marc Zyngier
2019-09-27 8:33 ` Suzuki K Poulose
2019-09-27 9:03 ` Catalin Marinas
2019-09-25 11:19 ` [PATCH 2/5] arm64: KVM: Reorder system register restoration and stage-2 activation Marc Zyngier
2019-09-25 11:19 ` [PATCH 3/5] arm64: KVM: Disable EL1 PTW when invalidating S2 TLBs Marc Zyngier
2019-10-03 11:10 ` James Morse
2019-09-25 11:19 ` [PATCH 4/5] arm64: KVM: Prevent speculative S1 PTW when restoring vcpu context Marc Zyngier
2019-10-03 11:09 ` James Morse
2019-09-25 11:19 ` [PATCH 5/5] arm64: Enable and document ARM errata 1319367 and 1319537 Marc Zyngier
2019-09-27 9:03 ` Catalin Marinas
2019-10-03 11:11 ` James Morse
2019-10-07 9:31 ` Marc Zyngier [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=86tv8kzyto.wl-maz@kernel.org \
--to=maz@kernel.org \
--cc=catalin.marinas@arm.com \
--cc=james.morse@arm.com \
--cc=julien.thierry.kdev@gmail.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=mark.rutland@arm.com \
--cc=suzuki.poulose@arm.com \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).