diff --git a/hw/msix.c b/hw/msix.c
index 2ca0900c3c..1613bb4f11 100644
--- a/hw/msix.c
+++ b/hw/msix.c
@@ -15,14 +15,6 @@
 #include "msix.h"
 #include "pci.h"
 
-/* Declaration from linux/pci_regs.h */
-#define  PCI_CAP_ID_MSIX 0x11 /* MSI-X */
-#define  PCI_MSIX_FLAGS 2     /* Table at lower 11 bits */
-#define  PCI_MSIX_FLAGS_QSIZE	0x7FF
-#define  PCI_MSIX_FLAGS_ENABLE	(1 << 15)
-#define  PCI_MSIX_FLAGS_MASKALL	(1 << 14)
-#define  PCI_MSIX_FLAGS_BIRMASK	(7 << 0)
-
 /* MSI-X capability structure */
 #define MSIX_TABLE_OFFSET 4
 #define MSIX_PBA_OFFSET 8
diff --git a/hw/pci-hotplug.c b/hw/pci-hotplug.c
index 37ac015f7d..a8f3df1701 100644
--- a/hw/pci-hotplug.c
+++ b/hw/pci-hotplug.c
@@ -124,7 +124,7 @@ void drive_hot_add(Monitor *mon, const QDict *qdict)
         if (pci_read_devaddr(mon, pci_addr, &dom, &pci_bus, &slot)) {
             goto err;
         }
-        dev = pci_find_device(pci_find_root_bus(0), pci_bus, slot, 0);
+        dev = pci_find_device(pci_find_root_bus(dom), pci_bus, slot, 0);
         if (!dev) {
             monitor_printf(mon, "no pci device with address %s\n", pci_addr);
             goto err;
@@ -252,7 +252,8 @@ void pci_device_hot_add(Monitor *mon, const QDict *qdict)
 
     if (dev) {
         monitor_printf(mon, "OK domain %d, bus %d, slot %d, function %d\n",
-                       0, pci_bus_num(dev->bus), PCI_SLOT(dev->devfn),
+                       pci_find_domain(dev->bus),
+                       pci_bus_num(dev->bus), PCI_SLOT(dev->devfn),
                        PCI_FUNC(dev->devfn));
     } else
         monitor_printf(mon, "failed to add %s\n", opts);
@@ -269,7 +270,7 @@ int pci_device_hot_remove(Monitor *mon, const char *pci_addr)
         return -1;
     }
 
-    d = pci_find_device(pci_find_root_bus(0), bus, slot, 0);
+    d = pci_find_device(pci_find_root_bus(dom), bus, slot, 0);
     if (!d) {
         monitor_printf(mon, "slot %d empty\n", slot);
         return -1;
diff --git a/hw/pci.c b/hw/pci.c
index 8d84651f19..f084cc0285 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -200,6 +200,26 @@ PCIBus *pci_find_root_bus(int domain)
     return NULL;
 }
 
+int pci_find_domain(const PCIBus *bus)
+{
+    PCIDevice *d;
+    struct PCIHostBus *host;
+
+    /* obtain root bus */
+    while ((d = bus->parent_dev) != NULL) {
+        bus = d->bus;
+    }
+
+    QLIST_FOREACH(host, &host_buses, next) {
+        if (host->bus == bus) {
+            return host->domain;
+        }
+    }
+
+    abort();    /* should not be reached */
+    return -1;
+}
+
 void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent,
                          const char *name, int devfn_min)
 {
@@ -419,14 +439,12 @@ int pci_device_load(PCIDevice *s, QEMUFile *f)
     return ret;
 }
 
-static int pci_set_default_subsystem_id(PCIDevice *pci_dev)
+static void pci_set_default_subsystem_id(PCIDevice *pci_dev)
 {
-    uint16_t *id;
-
-    id = (void*)(&pci_dev->config[PCI_SUBSYSTEM_VENDOR_ID]);
-    id[0] = cpu_to_le16(pci_default_sub_vendor_id);
-    id[1] = cpu_to_le16(pci_default_sub_device_id);
-    return 0;
+    pci_set_word(pci_dev->config + PCI_SUBSYSTEM_VENDOR_ID,
+                 pci_default_sub_vendor_id);
+    pci_set_word(pci_dev->config + PCI_SUBSYSTEM_ID,
+                 pci_default_sub_device_id);
 }
 
 /*
@@ -507,7 +525,7 @@ PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr)
     }
 
     *devfnp = slot << 3;
-    return pci_find_bus(pci_find_root_bus(0), bus);
+    return pci_find_bus(pci_find_root_bus(dom), bus);
 }
 
 static void pci_init_cmask(PCIDevice *dev)
diff --git a/hw/pci.h b/hw/pci.h
index f6e6c5f419..3a15bd4010 100644
--- a/hw/pci.h
+++ b/hw/pci.h
@@ -97,17 +97,6 @@ typedef struct PCIIORegion {
 /* PCI HEADER_TYPE */
 #define  PCI_HEADER_TYPE_MULTI_FUNCTION 0x80
 
-#define PCI_STATUS_RESERVED_MASK_LO (PCI_STATUS_RESERVED1 | \
-                PCI_STATUS_INT_STATUS | PCI_STATUS_CAPABILITIES | \
-                PCI_STATUS_66MHZ | PCI_STATUS_RESERVED2 | PCI_STATUS_FAST_BACK)
-
-#define PCI_STATUS_RESERVED_MASK_HI (PCI_STATUS_DEVSEL >> 8)
-
-/* Bits in the PCI Command Register (PCI 2.3 spec) */
-#define PCI_COMMAND_RESERVED	0xf800
-
-#define PCI_COMMAND_RESERVED_MASK_HI (PCI_COMMAND_RESERVED >> 8)
-
 /* Size of the standard PCI config header */
 #define PCI_CONFIG_HEADER_SIZE 0x40
 /* Size of the standard PCI config space */
@@ -229,6 +218,7 @@ PCIDevice *pci_nic_init_nofail(NICInfo *nd, const char *default_model,
 int pci_bus_num(PCIBus *s);
 void pci_for_each_device(PCIBus *bus, int bus_num, void (*fn)(PCIBus *bus, PCIDevice *d));
 PCIBus *pci_find_root_bus(int domain);
+int pci_find_domain(const PCIBus *bus);
 PCIBus *pci_find_bus(PCIBus *bus, int bus_num);
 PCIDevice *pci_find_device(PCIBus *bus, int bus_num, int slot, int function);
 PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr);
@@ -350,12 +340,12 @@ void pci_qdev_register_many(PCIDeviceInfo *info);
 PCIDevice *pci_create(PCIBus *bus, int devfn, const char *name);
 PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name);
 
-static inline int pci_is_express(PCIDevice *d)
+static inline int pci_is_express(const PCIDevice *d)
 {
     return d->cap_present & QEMU_PCI_CAP_EXPRESS;
 }
 
-static inline uint32_t pci_config_size(PCIDevice *d)
+static inline uint32_t pci_config_size(const PCIDevice *d)
 {
     return pci_is_express(d) ? PCIE_CONFIG_SPACE_SIZE : PCI_CONFIG_SPACE_SIZE;
 }