diff --git a/hw/pci-host/apb.c b/hw/pci-host/apb.c
index 64025cd..f743a4e 100644
--- a/hw/pci-host/apb.c
+++ b/hw/pci-host/apb.c
@@ -82,91 +82,6 @@ do { printf("IOMMU: " fmt , ## __VA_ARGS__); } while (0)
 #define MAX_IVEC 0x40
 #define NO_IRQ_REQUEST (MAX_IVEC + 1)
 
-#define IOMMU_PAGE_SIZE_8K      (1ULL << 13)
-#define IOMMU_PAGE_MASK_8K      (~(IOMMU_PAGE_SIZE_8K - 1))
-#define IOMMU_PAGE_SIZE_64K     (1ULL << 16)
-#define IOMMU_PAGE_MASK_64K     (~(IOMMU_PAGE_SIZE_64K - 1))
-
-#define IOMMU_NREGS             3
-
-#define IOMMU_CTRL              0x0
-#define IOMMU_CTRL_TBW_SIZE     (1ULL << 2)
-#define IOMMU_CTRL_MMU_EN       (1ULL)
-
-#define IOMMU_CTRL_TSB_SHIFT    16
-
-#define IOMMU_BASE              0x8
-#define IOMMU_FLUSH             0x10
-
-#define IOMMU_TTE_DATA_V        (1ULL << 63)
-#define IOMMU_TTE_DATA_SIZE     (1ULL << 61)
-#define IOMMU_TTE_DATA_W        (1ULL << 1)
-
-#define IOMMU_TTE_PHYS_MASK_8K  0x1ffffffe000ULL
-#define IOMMU_TTE_PHYS_MASK_64K 0x1ffffff8000ULL
-
-#define IOMMU_TSB_8K_OFFSET_MASK_8M    0x00000000007fe000ULL
-#define IOMMU_TSB_8K_OFFSET_MASK_16M   0x0000000000ffe000ULL
-#define IOMMU_TSB_8K_OFFSET_MASK_32M   0x0000000001ffe000ULL
-#define IOMMU_TSB_8K_OFFSET_MASK_64M   0x0000000003ffe000ULL
-#define IOMMU_TSB_8K_OFFSET_MASK_128M  0x0000000007ffe000ULL
-#define IOMMU_TSB_8K_OFFSET_MASK_256M  0x000000000fffe000ULL
-#define IOMMU_TSB_8K_OFFSET_MASK_512M  0x000000001fffe000ULL
-#define IOMMU_TSB_8K_OFFSET_MASK_1G    0x000000003fffe000ULL
-
-#define IOMMU_TSB_64K_OFFSET_MASK_64M  0x0000000003ff0000ULL
-#define IOMMU_TSB_64K_OFFSET_MASK_128M 0x0000000007ff0000ULL
-#define IOMMU_TSB_64K_OFFSET_MASK_256M 0x000000000fff0000ULL
-#define IOMMU_TSB_64K_OFFSET_MASK_512M 0x000000001fff0000ULL
-#define IOMMU_TSB_64K_OFFSET_MASK_1G   0x000000003fff0000ULL
-#define IOMMU_TSB_64K_OFFSET_MASK_2G   0x000000007fff0000ULL
-
-typedef struct IOMMUState {
-    AddressSpace iommu_as;
-    IOMMUMemoryRegion iommu;
-
-    uint64_t regs[IOMMU_NREGS];
-} IOMMUState;
-
-#define TYPE_APB "pbm"
-
-#define APB_DEVICE(obj) \
-    OBJECT_CHECK(APBState, (obj), TYPE_APB)
-
-#define TYPE_APB_IOMMU_MEMORY_REGION "pbm-iommu-memory-region"
-
-typedef struct APBState {
-    PCIHostState parent_obj;
-
-    MemoryRegion apb_config;
-    MemoryRegion pci_config;
-    MemoryRegion pci_mmio;
-    MemoryRegion pci_ioport;
-    uint64_t pci_irq_in;
-    IOMMUState iommu;
-    uint32_t pci_control[16];
-    uint32_t pci_irq_map[8];
-    uint32_t pci_err_irq_map[4];
-    uint32_t obio_irq_map[32];
-    qemu_irq *pbm_irqs;
-    qemu_irq *ivec_irqs;
-    unsigned int irq_request;
-    uint32_t reset_control;
-    unsigned int nr_resets;
-} APBState;
-
-#define TYPE_PBM_PCI_BRIDGE "pbm-bridge"
-#define PBM_PCI_BRIDGE(obj) \
-    OBJECT_CHECK(PBMPCIBridge, (obj), TYPE_PBM_PCI_BRIDGE)
-
-typedef struct PBMPCIBridge {
-    /*< private >*/
-    PCIBridge parent_obj;
-
-    /* Is this busA with in-built devices (ebus)? */
-    bool busA;
-} PBMPCIBridge;
-
 static inline void pbm_set_request(APBState *s, unsigned int irq_num)
 {
     APB_DPRINTF("%s: request irq %d\n", __func__, irq_num);
diff --git a/include/hw/pci-host/apb.h b/include/hw/pci-host/apb.h
index b19bd55..5d39c03 100644
--- a/include/hw/pci-host/apb.h
+++ b/include/hw/pci-host/apb.h
@@ -2,6 +2,92 @@
 #define PCI_HOST_APB_H
 
 #include "qemu-common.h"
+#include "hw/pci/pci_host.h"
+
+#define IOMMU_NREGS             3
+
+#define IOMMU_PAGE_SIZE_8K      (1ULL << 13)
+#define IOMMU_PAGE_MASK_8K      (~(IOMMU_PAGE_SIZE_8K - 1))
+#define IOMMU_PAGE_SIZE_64K     (1ULL << 16)
+#define IOMMU_PAGE_MASK_64K     (~(IOMMU_PAGE_SIZE_64K - 1))
+
+#define IOMMU_CTRL              0x0
+#define IOMMU_CTRL_TBW_SIZE     (1ULL << 2)
+#define IOMMU_CTRL_MMU_EN       (1ULL)
+
+#define IOMMU_CTRL_TSB_SHIFT    16
+
+#define IOMMU_BASE              0x8
+#define IOMMU_FLUSH             0x10
+
+#define IOMMU_TTE_DATA_V        (1ULL << 63)
+#define IOMMU_TTE_DATA_SIZE     (1ULL << 61)
+#define IOMMU_TTE_DATA_W        (1ULL << 1)
+
+#define IOMMU_TTE_PHYS_MASK_8K  0x1ffffffe000ULL
+#define IOMMU_TTE_PHYS_MASK_64K 0x1ffffff8000ULL
+
+#define IOMMU_TSB_8K_OFFSET_MASK_8M    0x00000000007fe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_16M   0x0000000000ffe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_32M   0x0000000001ffe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_64M   0x0000000003ffe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_128M  0x0000000007ffe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_256M  0x000000000fffe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_512M  0x000000001fffe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_1G    0x000000003fffe000ULL
+
+#define IOMMU_TSB_64K_OFFSET_MASK_64M  0x0000000003ff0000ULL
+#define IOMMU_TSB_64K_OFFSET_MASK_128M 0x0000000007ff0000ULL
+#define IOMMU_TSB_64K_OFFSET_MASK_256M 0x000000000fff0000ULL
+#define IOMMU_TSB_64K_OFFSET_MASK_512M 0x000000001fff0000ULL
+#define IOMMU_TSB_64K_OFFSET_MASK_1G   0x000000003fff0000ULL
+#define IOMMU_TSB_64K_OFFSET_MASK_2G   0x000000007fff0000ULL
+
+typedef struct IOMMUState {
+    AddressSpace iommu_as;
+    IOMMUMemoryRegion iommu;
+
+    uint64_t regs[IOMMU_NREGS];
+} IOMMUState;
+
+#define TYPE_APB "pbm"
+
+#define APB_DEVICE(obj) \
+    OBJECT_CHECK(APBState, (obj), TYPE_APB)
+
+#define TYPE_APB_IOMMU_MEMORY_REGION "pbm-iommu-memory-region"
+
+typedef struct APBState {
+    PCIHostState parent_obj;
+
+    MemoryRegion apb_config;
+    MemoryRegion pci_config;
+    MemoryRegion pci_mmio;
+    MemoryRegion pci_ioport;
+    uint64_t pci_irq_in;
+    IOMMUState iommu;
+    uint32_t pci_control[16];
+    uint32_t pci_irq_map[8];
+    uint32_t pci_err_irq_map[4];
+    uint32_t obio_irq_map[32];
+    qemu_irq *pbm_irqs;
+    qemu_irq *ivec_irqs;
+    unsigned int irq_request;
+    uint32_t reset_control;
+    unsigned int nr_resets;
+} APBState;
+
+typedef struct PBMPCIBridge {
+    /*< private >*/
+    PCIBridge parent_obj;
+
+    /* Is this busA with in-built devices (ebus)? */
+    bool busA;
+} PBMPCIBridge;
+
+#define TYPE_PBM_PCI_BRIDGE "pbm-bridge"
+#define PBM_PCI_BRIDGE(obj) \
+    OBJECT_CHECK(PBMPCIBridge, (obj), TYPE_PBM_PCI_BRIDGE)
 
 PCIBus *pci_apb_init(hwaddr special_base,
                      hwaddr mem_base,
