diff --git a/src/cpu/intel/haswell/haswell_init.c b/src/cpu/intel/haswell/haswell_init.c
index 2ab77b3..d4f3587 100644
--- a/src/cpu/intel/haswell/haswell_init.c
+++ b/src/cpu/intel/haswell/haswell_init.c
@@ -588,8 +588,8 @@
 static int get_cpu_count(void)
 {
 	msr_t msr;
-	int num_threads;
-	int num_cores;
+	unsigned int num_threads;
+	unsigned int num_cores;
 
 	msr = rdmsr(MSR_CORE_THREAD_COUNT);
 	num_threads = (msr.lo >> 0) & 0xffff;
diff --git a/src/cpu/intel/model_1067x/mp_init.c b/src/cpu/intel/model_1067x/mp_init.c
index 9a1fc42..bc53214 100644
--- a/src/cpu/intel/model_1067x/mp_init.c
+++ b/src/cpu/intel/model_1067x/mp_init.c
@@ -23,7 +23,7 @@
 static int get_cpu_count(void)
 {
 	const struct cpuid_result cpuid1 = cpuid(1);
-	const char cores = (cpuid1.ebx >> 16) & 0xf;
+	const unsigned int cores = (cpuid1.ebx >> 16) & 0xf;
 
 	printk(BIOS_DEBUG, "CPU has %u cores.\n", cores);
 
diff --git a/src/cpu/intel/model_2065x/model_2065x_init.c b/src/cpu/intel/model_2065x/model_2065x_init.c
index 30519c0..e77f9aa 100644
--- a/src/cpu/intel/model_2065x/model_2065x_init.c
+++ b/src/cpu/intel/model_2065x/model_2065x_init.c
@@ -124,8 +124,8 @@
 static int get_cpu_count(void)
 {
 	msr_t msr;
-	int num_threads;
-	int num_cores;
+	unsigned int num_threads;
+	unsigned int num_cores;
 
 	msr = rdmsr(MSR_CORE_THREAD_COUNT);
 	num_threads = (msr.lo >> 0) & 0xffff;
diff --git a/src/cpu/intel/model_206ax/model_206ax_init.c b/src/cpu/intel/model_206ax/model_206ax_init.c
index d240f53..9de6b38 100644
--- a/src/cpu/intel/model_206ax/model_206ax_init.c
+++ b/src/cpu/intel/model_206ax/model_206ax_init.c
@@ -380,8 +380,8 @@
 static int get_cpu_count(void)
 {
 	msr_t msr;
-	int num_threads;
-	int num_cores;
+	unsigned int num_threads;
+	unsigned int num_cores;
 
 	msr = rdmsr(MSR_CORE_THREAD_COUNT);
 	num_threads = (msr.lo >> 0) & 0xffff;