From: Diana Craciun <diana.crac...@nxp.com>
commit 406d2b6ae3420f5bb2b3db6986dc6f0b6dbb637b upstream.
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 <diana.crac...@nxp.com>
[mpe: Split out of larger patch]
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
arch/powerpc/kernel/security.c | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/powerpc/kernel/security.c
+++ b/arch/powerpc/kernel/security.c
@@ -93,6 +93,7 @@ static __init int barrier_nospec_debugfs
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;
@@ -125,6 +126,7 @@ ssize_t cpu_show_meltdown(struct device
return sprintf(buf, "Vulnerable\n");
}
+#endif
ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr,
char *buf)
{
