From: Mian Yousaf Kaukab <[email protected]> spectre v1, has been mitigated, and the mitigation is always active.
Signed-off-by: Mian Yousaf Kaukab <[email protected]> Signed-off-by: Jeremy Linton <[email protected]> --- arch/arm64/kernel/cpu_errata.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 09ac548c9d44..8dde8c616b7e 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -109,6 +109,8 @@ cpu_enable_trap_ctr_access(const struct arm64_cpu_capabilities *__unused) atomic_t arm64_el2_vector_last_slot = ATOMIC_INIT(-1); +uint arm64_requested_vuln_attrs = VULN_SPECTREV1; + #ifdef CONFIG_HARDEN_BRANCH_PREDICTOR #include <asm/mmu_context.h> #include <asm/cacheflush.h> @@ -742,3 +744,18 @@ const struct arm64_cpu_capabilities arm64_errata[] = { { } }; + +#ifdef CONFIG_GENERIC_CPU_VULNERABILITIES + +uint arch_supported_vuln_attr_fields(void) +{ + return arm64_requested_vuln_attrs; +} + +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
