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-rw-r--r--src/cpu/amd/microcode/microcode.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cpu/amd/microcode/microcode.c b/src/cpu/amd/microcode/microcode.c
index 29a550d529..e8ab17518b 100644
--- a/src/cpu/amd/microcode/microcode.c
+++ b/src/cpu/amd/microcode/microcode.c
@@ -127,7 +127,7 @@ static void apply_microcode_patch(const struct microcode *m)
UCODE_DEBUG("patch id to apply = 0x%08x\n", m->patch_id);
/* read the patch_id again */
- msr = rdmsr(0x8b);
+ msr = rdmsr(IA32_BIOS_SIGN_ID);
new_patch_id = msr.lo;
UCODE_DEBUG("updated to patch id = 0x%08x %s\n", new_patch_id,