diff mbox series

[v2,4/7] arm64: add sysfs vulnerability show for spectre v1

Message ID 20190103004921.1928921-5-jeremy.linton@arm.com (mailing list archive)
State New, archived
Headers show
Series add system vulnerability sysfs entries | expand

Commit Message

Jeremy Linton Jan. 3, 2019, 12:49 a.m. UTC 
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 | 10 ++++++++++
 1 file changed, 10 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 09ac548c9d44..2352955b1259 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -742,3 +742,13 @@  const struct arm64_cpu_capabilities arm64_errata[] = {
 	{
 	}
 };
+
+#ifdef CONFIG_GENERIC_CPU_VULNERABILITIES
+
+ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	return sprintf(buf, "Mitigation: __user pointer sanitization\n");
+}
+
+#endif