x86, microcode, AMD: Add microcode revision to /proc/cpuinfo
Enable microcode revision output for AMD after 506ed6b53e00 ("x86,
intel: Output microcode revision in /proc/cpuinfo") did it for Intel.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index b13ed39..d898fab 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -412,6 +412,8 @@
static void __cpuinit early_init_amd(struct cpuinfo_x86 *c)
{
+ u32 dummy;
+
early_init_amd_mc(c);
/*
@@ -442,6 +444,8 @@
}
#endif
+ rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy);
+
/* We need to do the following only once */
if (c != &boot_cpu_data)
return;