[PATCH v2 3/3] powerpc/fsl: Implement cpu_show_spectre_v1/v2 for NXP PowerPC Book3E

[Diana Craciun]

Signed-off-by: Diana Craciun <diana.craciun at nxp.com>
---
 arch/powerpc/Kconfig           |  2 +-
 arch/powerpc/kernel/security.c | 15 +++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 940c955..a781d60 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -170,7 +170,7 @@ config PPC
 	select GENERIC_CLOCKEVENTS_BROADCAST	if SMP
 	select GENERIC_CMOS_UPDATE
 	select GENERIC_CPU_AUTOPROBE
-	select GENERIC_CPU_VULNERABILITIES	if PPC_BOOK3S_64
+	select GENERIC_CPU_VULNERABILITIES	if PPC_BOOK3S_64 || PPC_FSL_BOOK3E
 	select GENERIC_IRQ_SHOW
 	select GENERIC_IRQ_SHOW_LEVEL
 	select GENERIC_SMP_IDLE_THREAD
diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c
index 797c975..aceaadc 100644
--- a/arch/powerpc/kernel/security.c
+++ b/arch/powerpc/kernel/security.c
@@ -183,3 +183,18 @@ ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr, c
 }
 #endif /* CONFIG_PPC_BOOK3S_64 */
 
+#ifdef CONFIG_PPC_FSL_BOOK3E
+ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	if (barrier_nospec_enabled)
+		return sprintf(buf, "Mitigation: __user pointer sanitization\n");
+
+	return sprintf(buf, "Vulnerable\n");
+}
+
+ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "Vulnerable\n");
+}
+#endif /* CONFIG_PPC_FSL_BOOK3E */
+
-- 
2.5.5