[PATCH v5 5/8] powerpc/64: Make meltdown reporting Book3S 64 specific
From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2018-07-27 23:06:53
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
From: Diana Craciun <redacted> In a subsequent patch we will enable building security.c for Book3E. However the NXP platforms are not vulnerable to Meltdown, so make the Meltdown vulnerability reporting PPC_BOOK3S_64 specific. Signed-off-by: Diana Craciun <redacted> [mpe: Split out of larger patch] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> --- arch/powerpc/kernel/security.c | 2 ++ 1 file changed, 2 insertions(+) v5: Split out.
diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c
index 77f253a6f8c9..ef72161de474 100644
--- a/arch/powerpc/kernel/security.c
+++ b/arch/powerpc/kernel/security.c@@ -92,6 +92,7 @@ static __init int barrier_nospec_debugfs_init(void) device_initcall(barrier_nospec_debugfs_init); #endif /* CONFIG_DEBUG_FS */ +#ifdef CONFIG_PPC_BOOK3S_64 ssize_t cpu_show_meltdown(struct device *dev, struct device_attribute *attr, char *buf) { bool thread_priv;
@@ -124,6 +125,7 @@ ssize_t cpu_show_meltdown(struct device *dev, struct device_attribute *attr, cha return sprintf(buf, "Vulnerable\n"); } +#endif ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr, char *buf) {
--
2.14.1