From: Andre Przywara <andre.przywara@arm.com>
To: Jeremy Linton <jeremy.linton@arm.com>,
linux-arm-kernel@lists.infradead.org
Cc: catalin.marinas@arm.com, will.deacon@arm.com,
marc.zyngier@arm.com, suzuki.poulose@arm.com,
Dave.Martin@arm.com, shankerd@codeaurora.org,
julien.thierry@arm.com, mlangsdo@redhat.com,
stefan.wahren@i2e.com, linux-kernel@vger.kernel.org,
Mian Yousaf Kaukab <ykaukab@suse.de>
Subject: Re: [PATCH v5 02/10] arm64: add sysfs vulnerability show for spectre v1
Date: Fri, 1 Mar 2019 00:54:51 -0600 [thread overview]
Message-ID: <273a277e-15ee-234f-94a5-bf2a021ca75c@foss.arm.com> (raw)
In-Reply-To: <20190227010544.597579-3-jeremy.linton@arm.com>
Hi,
On 2/26/19 7:05 PM, Jeremy Linton wrote:
> From: Mian Yousaf Kaukab <ykaukab@suse.de>
>
> spectre v1, has been mitigated, and the mitigation is
> always active.
>
> Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de>
> Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
> ---
> arch/arm64/kernel/cpu_errata.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
> index d2b2c69d31bb..ad58958becb6 100644
> --- a/arch/arm64/kernel/cpu_errata.c
> +++ b/arch/arm64/kernel/cpu_errata.c
> @@ -755,3 +755,9 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
> {
> }
> };
> +
> +ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr,
> + char *buf)
w/s issue, but it's not critical:
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Cheers,
Andre
> +{
> + return sprintf(buf, "Mitigation: __user pointer sanitization\n");
> +}
>
next prev parent reply other threads:[~2019-03-01 6:54 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-27 1:05 [PATCH v5 00/10] arm64: add system vulnerability sysfs entries Jeremy Linton
2019-02-27 1:05 ` [PATCH v5 01/10] arm64: Provide a command line to disable spectre_v2 mitigation Jeremy Linton
2019-02-28 18:14 ` Suzuki K Poulose
2019-02-28 18:21 ` Catalin Marinas
2019-02-28 18:25 ` Suzuki K Poulose
2019-03-01 6:54 ` Andre Przywara
2019-02-27 1:05 ` [PATCH v5 02/10] arm64: add sysfs vulnerability show for spectre v1 Jeremy Linton
2019-02-28 18:29 ` Suzuki K Poulose
2019-03-01 6:54 ` Andre Przywara [this message]
2019-02-27 1:05 ` [PATCH v5 03/10] arm64: add sysfs vulnerability show for meltdown Jeremy Linton
2019-02-28 18:33 ` Suzuki K Poulose
2019-03-01 7:11 ` Andre Przywara
2019-03-01 16:12 ` Jeremy Linton
2019-03-01 16:20 ` Catalin Marinas
2019-03-01 16:53 ` Jeremy Linton
2019-03-01 17:15 ` Catalin Marinas
2019-03-01 17:30 ` Andre Przywara
2019-02-27 1:05 ` [PATCH v5 04/10] arm64: Advertise mitigation of Spectre-v2, or lack thereof Jeremy Linton
2019-03-01 6:57 ` Andre Przywara
2019-02-27 1:05 ` [PATCH v5 05/10] arm64: Use firmware to detect CPUs that are not affected by Spectre-v2 Jeremy Linton
2019-03-01 6:58 ` Andre Przywara
2019-02-27 1:05 ` [PATCH v5 06/10] arm64: Always enable spectrev2 vulnerability detection Jeremy Linton
2019-03-01 6:58 ` Andre Przywara
2019-02-27 1:05 ` [PATCH v5 07/10] arm64: add sysfs vulnerability show for spectre v2 Jeremy Linton
2019-03-01 6:59 ` Andre Przywara
2019-02-27 1:05 ` [PATCH v5 08/10] arm64: Always enable ssb vulnerability detection Jeremy Linton
2019-03-01 7:02 ` Andre Przywara
2019-03-01 16:16 ` Jeremy Linton
2019-02-27 1:05 ` [PATCH v5 09/10] arm64: add sysfs vulnerability show for speculative store bypass Jeremy Linton
2019-03-01 7:02 ` Andre Przywara
2019-03-01 16:41 ` Jeremy Linton
2019-02-27 1:05 ` [PATCH v5 10/10] arm64: enable generic CPU vulnerabilites support Jeremy Linton
2019-03-01 7:03 ` Andre Przywara
2019-02-28 12:01 ` [PATCH v5 00/10] arm64: add system vulnerability sysfs entries Catalin Marinas
2019-03-01 19:35 ` Stefan Wahren
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