diff --git a/hypervisor/arch/x86/irq.c b/hypervisor/arch/x86/irq.c
index f9e670815..b2fee20d8 100644
--- a/hypervisor/arch/x86/irq.c
+++ b/hypervisor/arch/x86/irq.c
@@ -40,10 +40,10 @@ static struct {
 };
 
 /*
- * alloc an vectror and bind it to irq
+ * allocate a vector and bind it to irq
  * for legacy_irq (irq num < 16) and static mapped ones, do nothing
  * if mapping is correct.
- * retval: valid vector num on susccess, VECTOR_INVALID on failure.
+ * retval: valid vector number on success, VECTOR_INVALID on failure.
  */
 uint32_t alloc_irq_vector(uint32_t irq)
 {
@@ -66,7 +66,7 @@ uint32_t alloc_irq_vector(uint32_t irq)
 			}
 		} else {
 			/* alloc a vector between:
-			 *   VECTOR_DYNAMIC_START ~ VECTOR_DYNAMC_END
+			 *   VECTOR_DYNAMIC_START ~ VECTOR_DYNAMIC_END
 			 */
 			for (vr = VECTOR_DYNAMIC_START;
 				vr <= VECTOR_DYNAMIC_END; vr++) {
diff --git a/hypervisor/arch/x86/lapic.c b/hypervisor/arch/x86/lapic.c
index 6a194eadb..68bab1498 100644
--- a/hypervisor/arch/x86/lapic.c
+++ b/hypervisor/arch/x86/lapic.c
@@ -284,7 +284,7 @@ void send_single_init(uint16_t pcpu_id)
 	/*
 	 * Intel SDM Vol3 23.8:
 	 *   The INIT signal is blocked whenever a logical processor is in VMX root operation.
-	 *   It is not blocked in VMX nonroot operation. Instead, INITs cause VM exits
+	 *   It is not blocked in VMX non-root operation. Instead, INITs cause VM exits
 	 */
 
 	icr.value_32.hi_32 = per_cpu(lapic_id, pcpu_id);
diff --git a/hypervisor/arch/x86/mmu.c b/hypervisor/arch/x86/mmu.c
index 45f080017..c893bfa70 100644
--- a/hypervisor/arch/x86/mmu.c
+++ b/hypervisor/arch/x86/mmu.c
@@ -298,7 +298,7 @@ void init_paging(void)
 	}
 
 	/*
-	 * set the paging-structure entries' U/S flag to supervisor-mode for hypervisor owned memroy.
+	 * set the paging-structure entries' U/S flag to supervisor-mode for hypervisor owned memory.
 	 * (exclude the memory reserve for trusty)
 	 *
 	 * Before the new PML4 take effect in enable_paging(), HPA->HVA is always 1:1 mapping,