diff --git a/src/soc/intel/common/block/cpu/cpulib.c b/src/soc/intel/common/block/cpu/cpulib.c
index 34ec233164..81e42aeda5 100644
--- a/src/soc/intel/common/block/cpu/cpulib.c
+++ b/src/soc/intel/common/block/cpu/cpulib.c
@@ -355,7 +355,7 @@ void mca_configure(void)
 	}
 }
 
-void cpu_lt_lock_memory(void *unused)
+void cpu_lt_lock_memory(void)
 {
 	msr_set(MSR_LT_CONTROL, LT_CONTROL_LOCK);
 }
diff --git a/src/soc/intel/common/block/include/intelblocks/cpulib.h b/src/soc/intel/common/block/include/intelblocks/cpulib.h
index 6fc31b374e..7e3deb0fd4 100644
--- a/src/soc/intel/common/block/include/intelblocks/cpulib.h
+++ b/src/soc/intel/common/block/include/intelblocks/cpulib.h
@@ -151,7 +151,7 @@ uint32_t cpu_get_max_turbo_ratio(void);
 void mca_configure(void);
 
 /* Lock chipset memory registers to protect SMM */
-void cpu_lt_lock_memory(void *unused);
+void cpu_lt_lock_memory(void);
 
 /* Get a supported PRMRR size in bytes with respect to users choice */
 int get_valid_prmrr_size(void);
diff --git a/src/soc/intel/common/block/sgx/sgx.c b/src/soc/intel/common/block/sgx/sgx.c
index b5c8944a9b..c391ec7a96 100644
--- a/src/soc/intel/common/block/sgx/sgx.c
+++ b/src/soc/intel/common/block/sgx/sgx.c
@@ -205,9 +205,9 @@ void sgx_configure(void *unused)
 	if (owner_epoch_update() < 0)
 		return;
 
+	/* Ensure to lock memory before reloading microcode patch */
 	if (CONFIG(SOC_INTEL_COMMON_BLOCK_SGX_LOCK_MEMORY))
-		/* Ensure to lock memory before reload microcode patch */
-		cpu_lt_lock_memory(NULL);
+		cpu_lt_lock_memory();
 
 	/*
 	 * Update just on the first CPU in the core. Other siblings
diff --git a/src/soc/intel/skylake/finalize.c b/src/soc/intel/skylake/finalize.c
index f8b36a48bd..ebbd3da238 100644
--- a/src/soc/intel/skylake/finalize.c
+++ b/src/soc/intel/skylake/finalize.c
@@ -84,8 +84,7 @@ static void soc_lockdown(struct device *dev)
 		pci_write_config8(dev, GEN_PMCON_A, reg8);
 	}
 
-	/* Lock chipset memory registers to protect SMM */
-	mp_run_on_all_cpus(cpu_lt_lock_memory, NULL);
+	cpu_lt_lock_memory();
 }
 
 static void soc_finalize(void *unused)