[PATCH 3/6] arm64: add sysfs vulnerability show for spectre v1
Hard-coded since patches are merged and there are no configuration options. Signed-off-by: Mian Yousaf Kaukab --- 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 996edb4e18ad..92616431ae4e 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -706,4 +706,10 @@ ssize_t cpu_show_meltdown(struct device *dev, struct device_attribute *attr, return sprintf(buf, "Vulnerable\n"); } +ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "Mitigation: __user pointer sanitization\n"); +} + #endif -- 2.11.0
[PATCH 3/6] arm64: add sysfs vulnerability show for spectre v1
From: Mian Yousaf Kaukab spectre v1, has been mitigated, and the mitigation is always active. Signed-off-by: Mian Yousaf Kaukab Signed-off-by: Jeremy Linton --- arch/arm64/kernel/cpu_errata.c | 10 ++ 1 file changed, 10 insertions(+) diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 6ad715d67df8..559ecdee6fd2 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -757,3 +757,13 @@ 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 -- 2.17.2