From: Jeremy Linton <jeremy.linton@arm.com>
To: 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@i2se.com, Andre.Przywara@arm.com,
linux-kernel@vger.kernel.org,
Mian Yousaf Kaukab <ykaukab@suse.de>,
Jeremy Linton <jeremy.linton@arm.com>,
Andre Przywara <andre.przywara@arm.com>
Subject: [v7 02/10] arm64: add sysfs vulnerability show for spectre v1
Date: Wed, 10 Apr 2019 18:12:29 -0500 [thread overview]
Message-ID: <20190410231237.52506-3-jeremy.linton@arm.com> (raw)
In-Reply-To: <20190410231237.52506-1-jeremy.linton@arm.com>
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>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Suzuki K Poulose <suzuki.poulose@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..cf623657cf3c 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)
+{
+ return sprintf(buf, "Mitigation: __user pointer sanitization\n");
+}
--
2.20.1
next prev parent reply other threads:[~2019-04-10 23:13 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-10 23:12 [v7 00/10] arm64: add system vulnerability sysfs entries Jeremy Linton
2019-04-10 0:48 ` Jeremy Linton
2019-04-10 23:12 ` [v7 01/10] arm64: Provide a command line to disable spectre_v2 mitigation Jeremy Linton
2019-04-10 23:12 ` Jeremy Linton [this message]
2019-04-10 23:12 ` [v7 03/10] arm64: add sysfs vulnerability show for meltdown Jeremy Linton
2019-04-10 23:12 ` [v7 04/10] arm64: Advertise mitigation of Spectre-v2, or lack thereof Jeremy Linton
2019-04-10 23:12 ` [v7 05/10] arm64: Use firmware to detect CPUs that are not affected by Spectre-v2 Jeremy Linton
2019-04-10 23:12 ` [v7 06/10] arm64: Always enable spectrev2 vulnerability detection Jeremy Linton
2019-04-10 23:12 ` [v7 07/10] arm64: add sysfs vulnerability show for spectre v2 Jeremy Linton
2019-04-10 23:12 ` [v7 08/10] arm64: Always enable ssb vulnerability detection Jeremy Linton
2019-04-10 23:12 ` [v7 09/10] arm64: add sysfs vulnerability show for speculative store bypass Jeremy Linton
2019-04-10 23:12 ` [v7 10/10] arm64: enable generic CPU vulnerabilites support Jeremy Linton
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