diff --git a/include/hw/i386/ich9.h b/include/hw/i386/ich9.h
index 9e4a0e4..e191435 100644
--- a/include/hw/i386/ich9.h
+++ b/include/hw/i386/ich9.h
@@ -102,7 +102,7 @@ Object *ich9_lpc_find(void);
 #define ICH9_USB_UHCI1_DEV                      29
 #define ICH9_USB_UHCI1_FUNC                     0
 
-/* D30:F0 DMI-to-PCI brdige */
+/* D30:F0 DMI-to-PCI bridge */
 #define ICH9_D2P_BRIDGE                         "ICH9 D2P BRIDGE"
 #define ICH9_D2P_BRIDGE_SAVEVM_VERSION          0
 
diff --git a/include/hw/pci-host/q35.h b/include/hw/pci-host/q35.h
index d0355b7..d9ee978 100644
--- a/include/hw/pci-host/q35.h
+++ b/include/hw/pci-host/q35.h
@@ -125,8 +125,8 @@ typedef struct Q35PCIHost {
 #define MCH_HOST_BRIDGE_PAM_RE                 ((uint8_t)0x1)
 #define MCH_HOST_BRIDGE_PAM_MASK               ((uint8_t)0x3)
 
-#define MCH_HOST_BRDIGE_SMRAM                  0x9d
-#define MCH_HOST_BRDIGE_SMRAM_SIZE             1
+#define MCH_HOST_BRIDGE_SMRAM                  0x9d
+#define MCH_HOST_BRIDGE_SMRAM_SIZE             1
 #define MCH_HOST_BRIDGE_SMRAM_DEFAULT          ((uint8_t)0x2)
 #define MCH_HOST_BRIDGE_SMRAM_D_OPEN           ((uint8_t)(1 << 6))
 #define MCH_HOST_BRIDGE_SMRAM_D_CLS            ((uint8_t)(1 << 5))
@@ -140,16 +140,16 @@ typedef struct Q35PCIHost {
 #define MCH_HOST_BRIDGE_UPPER_SYSTEM_BIOS_END  0x100000
 
 #define MCH_HOST_BRIDGE_ESMRAMC                0x9e
-#define MCH_HOST_BRDIGE_ESMRAMC_H_SMRAME       ((uint8_t)(1 << 6))
-#define MCH_HOST_BRDIGE_ESMRAMC_E_SMERR        ((uint8_t)(1 << 5))
-#define MCH_HOST_BRDIGE_ESMRAMC_SM_CACHE       ((uint8_t)(1 << 4))
-#define MCH_HOST_BRDIGE_ESMRAMC_SM_L1          ((uint8_t)(1 << 3))
-#define MCH_HOST_BRDIGE_ESMRAMC_SM_L2          ((uint8_t)(1 << 2))
-#define MCH_HOST_BRDIGE_ESMRAMC_TSEG_SZ_MASK   ((uint8_t)(0x3 << 1))
-#define MCH_HOST_BRDIGE_ESMRAMC_TSEG_SZ_1MB    ((uint8_t)(0x0 << 1))
-#define MCH_HOST_BRDIGE_ESMRAMC_TSEG_SZ_2MB    ((uint8_t)(0x1 << 1))
-#define MCH_HOST_BRDIGE_ESMRAMC_TSEG_SZ_8MB    ((uint8_t)(0x2 << 1))
-#define MCH_HOST_BRDIGE_ESMRAMC_T_EN           ((uint8_t)1)
+#define MCH_HOST_BRIDGE_ESMRAMC_H_SMRAME       ((uint8_t)(1 << 6))
+#define MCH_HOST_BRIDGE_ESMRAMC_E_SMERR        ((uint8_t)(1 << 5))
+#define MCH_HOST_BRIDGE_ESMRAMC_SM_CACHE       ((uint8_t)(1 << 4))
+#define MCH_HOST_BRIDGE_ESMRAMC_SM_L1          ((uint8_t)(1 << 3))
+#define MCH_HOST_BRIDGE_ESMRAMC_SM_L2          ((uint8_t)(1 << 2))
+#define MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_MASK   ((uint8_t)(0x3 << 1))
+#define MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_1MB    ((uint8_t)(0x0 << 1))
+#define MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_2MB    ((uint8_t)(0x1 << 1))
+#define MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_8MB    ((uint8_t)(0x2 << 1))
+#define MCH_HOST_BRIDGE_ESMRAMC_T_EN           ((uint8_t)1)
 
 /* D1:F0 PCIE* port*/
 #define MCH_PCIE_DEV                           1
diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c
index 4bc2e01..8b8cc4e 100644
--- a/hw/pci-host/q35.c
+++ b/hw/pci-host/q35.c
@@ -272,7 +272,7 @@ static void mch_update_smram(MCHPCIState *mch)
     PCIDevice *pd = PCI_DEVICE(mch);
 
     memory_region_transaction_begin();
-    smram_update(&mch->smram_region, pd->config[MCH_HOST_BRDIGE_SMRAM],
+    smram_update(&mch->smram_region, pd->config[MCH_HOST_BRIDGE_SMRAM],
                     mch->smm_enabled);
     memory_region_transaction_commit();
 }
@@ -283,7 +283,7 @@ static void mch_set_smm(int smm, void *arg)
     PCIDevice *pd = PCI_DEVICE(mch);
 
     memory_region_transaction_begin();
-    smram_set_smm(&mch->smm_enabled, smm, pd->config[MCH_HOST_BRDIGE_SMRAM],
+    smram_set_smm(&mch->smm_enabled, smm, pd->config[MCH_HOST_BRIDGE_SMRAM],
                     &mch->smram_region);
     memory_region_transaction_commit();
 }
@@ -306,8 +306,8 @@ static void mch_write_config(PCIDevice *d,
         mch_update_pciexbar(mch);
     }
 
-    if (ranges_overlap(address, len, MCH_HOST_BRDIGE_SMRAM,
-                       MCH_HOST_BRDIGE_SMRAM_SIZE)) {
+    if (ranges_overlap(address, len, MCH_HOST_BRIDGE_SMRAM,
+                       MCH_HOST_BRIDGE_SMRAM_SIZE)) {
         mch_update_smram(mch);
     }
 }
@@ -347,7 +347,7 @@ static void mch_reset(DeviceState *qdev)
     pci_set_quad(d->config + MCH_HOST_BRIDGE_PCIEXBAR,
                  MCH_HOST_BRIDGE_PCIEXBAR_DEFAULT);
 
-    d->config[MCH_HOST_BRDIGE_SMRAM] = MCH_HOST_BRIDGE_SMRAM_DEFAULT;
+    d->config[MCH_HOST_BRIDGE_SMRAM] = MCH_HOST_BRIDGE_SMRAM_DEFAULT;
 
     mch_update(mch);
 }
