Merge remote-tracking branch 'remotes/mjt/tags/pull-trivial-patches-2015-06-23' into staging

trivial patches for 2015-06-23

# gpg: Signature made Tue Jun 23 18:23:45 2015 BST using RSA key ID A4C3D7DB
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"

* remotes/mjt/tags/pull-trivial-patches-2015-06-23: (21 commits)
  util/qemu-sockets: improve ai_flag hints for ipv6 hosts
  hw/display/tcx.c: Fix memory leak
  hw/display/cg3.c: Fix memory leak
  Makefile: Add "make ctags"
  Makefile: Fix "make cscope TAGS"
  qemu-options: Use @itemx where appropriate
  qemu-options: Improve -global documentation
  throttle: Fix typo in the documentation of block_set_io_throttle
  hw/display/qxl-logger.c: Constify some variable
  configure: rearrange --help and consolidate enable/disable together
  libcacard: pkgconfig: tidy dependent libs
  vt82c686: QOMify
  xen_pt: QOMify
  wdt_i6300esb: QOMify
  piix4: QOMify
  piix: piix3 QOMify
  pci-assign: QOMify
  Print error when failing to load PCI config data
  Grammar: 'as to'->'as for'
  remove libdecnumber/dpd/decimal128Local.h
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

11 files changed, 122 insertions, 79 deletions

diff --git a/hw/display/cg3.c b/hw/display/cg3.c
index b94e5e0..34dcbc3 100644
--- a/hw/display/cg3.c
+++ b/hw/display/cg3.c
@@ -303,6 +303,7 @@ static void cg3_realizefn(DeviceState *dev, Error **errp)
     if (fcode_filename) {
         ret = load_image_targphys(fcode_filename, s->prom_addr,
                                   FCODE_MAX_ROM_SIZE);
+        g_free(fcode_filename);
         if (ret < 0 || ret > FCODE_MAX_ROM_SIZE) {
             error_report("cg3: could not load prom '%s'", CG3_ROM_FILE);
         }
diff --git a/hw/display/qxl-logger.c b/hw/display/qxl-logger.c
index c900c2c..d944d3f 100644
--- a/hw/display/qxl-logger.c
+++ b/hw/display/qxl-logger.c
@@ -22,7 +22,7 @@
 #include "qemu/timer.h"
 #include "qxl.h"
 
-static const char *qxl_type[] = {
+static const char *const qxl_type[] = {
     [ QXL_CMD_NOP ]     = "nop",
     [ QXL_CMD_DRAW ]    = "draw",
     [ QXL_CMD_UPDATE ]  = "update",
@@ -31,7 +31,7 @@ static const char *qxl_type[] = {
     [ QXL_CMD_SURFACE ] = "surface",
 };
 
-static const char *qxl_draw_type[] = {
+static const char *const qxl_draw_type[] = {
     [ QXL_DRAW_NOP         ] = "nop",
     [ QXL_DRAW_FILL        ] = "fill",
     [ QXL_DRAW_OPAQUE      ] = "opaque",
@@ -48,7 +48,7 @@ static const char *qxl_draw_type[] = {
     [ QXL_DRAW_ALPHA_BLEND ] = "alpha-blend",
 };
 
-static const char *qxl_draw_effect[] = {
+static const char *const qxl_draw_effect[] = {
     [ QXL_EFFECT_BLEND            ] = "blend",
     [ QXL_EFFECT_OPAQUE           ] = "opaque",
     [ QXL_EFFECT_REVERT_ON_DUP    ] = "revert-on-dup",
@@ -59,12 +59,12 @@ static const char *qxl_draw_effect[] = {
     [ QXL_EFFECT_OPAQUE_BRUSH     ] = "opaque-brush",
 };
 
-static const char *qxl_surface_cmd[] = {
+static const char *const qxl_surface_cmd[] = {
    [ QXL_SURFACE_CMD_CREATE  ] = "create",
    [ QXL_SURFACE_CMD_DESTROY ] = "destroy",
 };
 
-static const char *spice_surface_fmt[] = {
+static const char *const spice_surface_fmt[] = {
    [ SPICE_SURFACE_FMT_INVALID  ] = "invalid",
    [ SPICE_SURFACE_FMT_1_A      ] = "alpha/1",
    [ SPICE_SURFACE_FMT_8_A      ] = "alpha/8",
@@ -74,14 +74,14 @@ static const char *spice_surface_fmt[] = {
    [ SPICE_SURFACE_FMT_32_ARGB  ] = "ARGB/32",
 };
 
-static const char *qxl_cursor_cmd[] = {
+static const char *const qxl_cursor_cmd[] = {
    [ QXL_CURSOR_SET   ] = "set",
    [ QXL_CURSOR_MOVE  ] = "move",
    [ QXL_CURSOR_HIDE  ] = "hide",
    [ QXL_CURSOR_TRAIL ] = "trail",
 };
 
-static const char *spice_cursor_type[] = {
+static const char *const spice_cursor_type[] = {
    [ SPICE_CURSOR_TYPE_ALPHA   ] = "alpha",
    [ SPICE_CURSOR_TYPE_MONO    ] = "mono",
    [ SPICE_CURSOR_TYPE_COLOR4  ] = "color4",
@@ -91,7 +91,7 @@ static const char *spice_cursor_type[] = {
    [ SPICE_CURSOR_TYPE_COLOR32 ] = "color32",
 };
 
-static const char *qxl_v2n(const char *n[], size_t l, int v)
+static const char *qxl_v2n(const char *const n[], size_t l, int v)
 {
     if (v >= l || !n[v]) {
         return "???";
diff --git a/hw/display/tcx.c b/hw/display/tcx.c
index a0b6bc5..6acdc2d 100644
--- a/hw/display/tcx.c
+++ b/hw/display/tcx.c
@@ -1018,6 +1018,7 @@ static void tcx_realizefn(DeviceState *dev, Error **errp)
     if (fcode_filename) {
         ret = load_image_targphys(fcode_filename, s->prom_addr,
                                   FCODE_MAX_ROM_SIZE);
+        g_free(fcode_filename);
         if (ret < 0 || ret > FCODE_MAX_ROM_SIZE) {
             error_report("tcx: could not load prom '%s'", TCX_ROM_FILE);
         }
diff --git a/hw/i386/kvm/pci-assign.c b/hw/i386/kvm/pci-assign.c
index 9db7c77..74d22f4 100644
--- a/hw/i386/kvm/pci-assign.c
+++ b/hw/i386/kvm/pci-assign.c
@@ -141,6 +141,9 @@ typedef struct AssignedDevice {
     int32_t bootindex;
 } AssignedDevice;
 
+#define TYPE_PCI_ASSIGN "kvm-pci-assign"
+#define PCI_ASSIGN(obj) OBJECT_CHECK(AssignedDevice, (obj), TYPE_PCI_ASSIGN)
+
 static void assigned_dev_update_irq_routing(PCIDevice *dev);
 
 static void assigned_dev_load_option_rom(AssignedDevice *dev);
@@ -257,7 +260,7 @@ static const MemoryRegionOps slow_bar_ops = {
 static void assigned_dev_iomem_setup(PCIDevice *pci_dev, int region_num,
                                      pcibus_t e_size)
 {
-    AssignedDevice *r_dev = DO_UPCAST(AssignedDevice, dev, pci_dev);
+    AssignedDevice *r_dev = PCI_ASSIGN(pci_dev);
     AssignedDevRegion *region = &r_dev->v_addrs[region_num];
     PCIRegion *real_region = &r_dev->real_device.regions[region_num];
 
@@ -289,7 +292,7 @@ static const MemoryRegionOps assigned_dev_ioport_ops = {
 static void assigned_dev_ioport_setup(PCIDevice *pci_dev, int region_num,
                                       pcibus_t size)
 {
-    AssignedDevice *r_dev = DO_UPCAST(AssignedDevice, dev, pci_dev);
+    AssignedDevice *r_dev = PCI_ASSIGN(pci_dev);
     AssignedDevRegion *region = &r_dev->v_addrs[region_num];
 
     region->e_size = size;
@@ -303,7 +306,7 @@ static void assigned_dev_ioport_setup(PCIDevice *pci_dev, int region_num,
 
 static uint32_t assigned_dev_pci_read(PCIDevice *d, int pos, int len)
 {
-    AssignedDevice *pci_dev = DO_UPCAST(AssignedDevice, dev, d);
+    AssignedDevice *pci_dev = PCI_ASSIGN(d);
     uint32_t val;
     ssize_t ret;
     int fd = pci_dev->real_device.config_fd;
@@ -328,7 +331,7 @@ static uint8_t assigned_dev_pci_read_byte(PCIDevice *d, int pos)
 
 static void assigned_dev_pci_write(PCIDevice *d, int pos, uint32_t val, int len)
 {
-    AssignedDevice *pci_dev = DO_UPCAST(AssignedDevice, dev, d);
+    AssignedDevice *pci_dev = PCI_ASSIGN(d);
     ssize_t ret;
     int fd = pci_dev->real_device.config_fd;
 
@@ -946,7 +949,7 @@ static void deassign_device(AssignedDevice *dev)
  */
 static void assigned_dev_update_irq_routing(PCIDevice *dev)
 {
-    AssignedDevice *assigned_dev = DO_UPCAST(AssignedDevice, dev, dev);
+    AssignedDevice *assigned_dev = PCI_ASSIGN(dev);
     Error *err = NULL;
     int r;
 
@@ -961,7 +964,7 @@ static void assigned_dev_update_irq_routing(PCIDevice *dev)
 
 static void assigned_dev_update_msi(PCIDevice *pci_dev)
 {
-    AssignedDevice *assigned_dev = DO_UPCAST(AssignedDevice, dev, pci_dev);
+    AssignedDevice *assigned_dev = PCI_ASSIGN(pci_dev);
     uint8_t ctrl_byte = pci_get_byte(pci_dev->config + pci_dev->msi_cap +
                                      PCI_MSI_FLAGS);
     int r;
@@ -1015,7 +1018,7 @@ static void assigned_dev_update_msi(PCIDevice *pci_dev)
 
 static void assigned_dev_update_msi_msg(PCIDevice *pci_dev)
 {
-    AssignedDevice *assigned_dev = DO_UPCAST(AssignedDevice, dev, pci_dev);
+    AssignedDevice *assigned_dev = PCI_ASSIGN(pci_dev);
     uint8_t ctrl_byte = pci_get_byte(pci_dev->config + pci_dev->msi_cap +
                                      PCI_MSI_FLAGS);
 
@@ -1048,7 +1051,7 @@ static bool assigned_dev_msix_skipped(MSIXTableEntry *entry)
 
 static int assigned_dev_update_msix_mmio(PCIDevice *pci_dev)
 {
-    AssignedDevice *adev = DO_UPCAST(AssignedDevice, dev, pci_dev);
+    AssignedDevice *adev = PCI_ASSIGN(pci_dev);
     uint16_t entries_nr = 0;
     int i, r = 0;
     MSIXTableEntry *entry = adev->msix_table;
@@ -1113,7 +1116,7 @@ static int assigned_dev_update_msix_mmio(PCIDevice *pci_dev)
 
 static void assigned_dev_update_msix(PCIDevice *pci_dev)
 {
-    AssignedDevice *assigned_dev = DO_UPCAST(AssignedDevice, dev, pci_dev);
+    AssignedDevice *assigned_dev = PCI_ASSIGN(pci_dev);
     uint16_t ctrl_word = pci_get_word(pci_dev->config + pci_dev->msix_cap +
                                       PCI_MSIX_FLAGS);
     int r;
@@ -1163,7 +1166,7 @@ static void assigned_dev_update_msix(PCIDevice *pci_dev)
 static uint32_t assigned_dev_pci_read_config(PCIDevice *pci_dev,
                                              uint32_t address, int len)
 {
-    AssignedDevice *assigned_dev = DO_UPCAST(AssignedDevice, dev, pci_dev);
+    AssignedDevice *assigned_dev = PCI_ASSIGN(pci_dev);
     uint32_t virt_val = pci_default_read_config(pci_dev, address, len);
     uint32_t real_val, emulate_mask, full_emulation_mask;
 
@@ -1184,7 +1187,7 @@ static uint32_t assigned_dev_pci_read_config(PCIDevice *pci_dev,
 static void assigned_dev_pci_write_config(PCIDevice *pci_dev, uint32_t address,
                                           uint32_t val, int len)
 {
-    AssignedDevice *assigned_dev = DO_UPCAST(AssignedDevice, dev, pci_dev);
+    AssignedDevice *assigned_dev = PCI_ASSIGN(pci_dev);
     uint16_t old_cmd = pci_get_word(pci_dev->config + PCI_COMMAND);
     uint32_t emulate_mask, full_emulation_mask;
     int ret;
@@ -1244,7 +1247,7 @@ static void assigned_dev_setup_cap_read(AssignedDevice *dev, uint32_t offset,
 
 static int assigned_device_pci_cap_init(PCIDevice *pci_dev, Error **errp)
 {
-    AssignedDevice *dev = DO_UPCAST(AssignedDevice, dev, pci_dev);
+    AssignedDevice *dev = PCI_ASSIGN(pci_dev);
     PCIRegion *pci_region = dev->real_device.regions;
     int ret, pos;
     Error *local_err = NULL;
@@ -1684,8 +1687,8 @@ static const VMStateDescription vmstate_assigned_device = {
 
 static void reset_assigned_device(DeviceState *dev)
 {
-    PCIDevice *pci_dev = DO_UPCAST(PCIDevice, qdev, dev);
-    AssignedDevice *adev = DO_UPCAST(AssignedDevice, dev, pci_dev);
+    PCIDevice *pci_dev = PCI_DEVICE(dev);
+    AssignedDevice *adev = PCI_ASSIGN(pci_dev);
     char reset_file[64];
     const char reset[] = "1";
     int fd, ret;
@@ -1740,7 +1743,7 @@ static void reset_assigned_device(DeviceState *dev)
 
 static void assigned_realize(struct PCIDevice *pci_dev, Error **errp)
 {
-    AssignedDevice *dev = DO_UPCAST(AssignedDevice, dev, pci_dev);
+    AssignedDevice *dev = PCI_ASSIGN(pci_dev);
     uint8_t e_intx;
     int r;
     Error *local_err = NULL;
@@ -1836,7 +1839,7 @@ exit_with_error:
 
 static void assigned_exitfn(struct PCIDevice *pci_dev)
 {
-    AssignedDevice *dev = DO_UPCAST(AssignedDevice, dev, pci_dev);
+    AssignedDevice *dev = PCI_ASSIGN(pci_dev);
 
     deassign_device(dev);
     free_assigned_device(dev);
@@ -1845,7 +1848,7 @@ static void assigned_exitfn(struct PCIDevice *pci_dev)
 static void assigned_dev_instance_init(Object *obj)
 {
     PCIDevice *pci_dev = PCI_DEVICE(obj);
-    AssignedDevice *d = DO_UPCAST(AssignedDevice, dev, PCI_DEVICE(obj));
+    AssignedDevice *d = PCI_ASSIGN(pci_dev);
 
     device_add_bootindex_property(obj, &d->bootindex,
                                   "bootindex", NULL,
@@ -1879,7 +1882,7 @@ static void assign_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo assign_info = {
-    .name               = "kvm-pci-assign",
+    .name               = TYPE_PCI_ASSIGN,
     .parent             = TYPE_PCI_DEVICE,
     .instance_size      = sizeof(AssignedDevice),
     .class_init         = assign_class_init,
diff --git a/hw/isa/piix4.c b/hw/isa/piix4.c
index d9522b1..2c59e91 100644
--- a/hw/isa/piix4.c
+++ b/hw/isa/piix4.c
@@ -34,6 +34,10 @@ typedef struct PIIX4State {
     PCIDevice dev;
 } PIIX4State;
 
+#define TYPE_PIIX4_PCI_DEVICE "PIIX4"
+#define PIIX4_PCI_DEVICE(obj) \
+    OBJECT_CHECK(PIIX4State, (obj), TYPE_PIIX4_PCI_DEVICE)
+
 static void piix4_reset(void *opaque)
 {
     PIIX4State *d = opaque;
@@ -84,7 +88,7 @@ static const VMStateDescription vmstate_piix4 = {
 
 static void piix4_realize(PCIDevice *dev, Error **errp)
 {
-    PIIX4State *d = DO_UPCAST(PIIX4State, dev, dev);
+    PIIX4State *d = PIIX4_PCI_DEVICE(dev);
 
     isa_bus_new(DEVICE(d), pci_address_space(dev),
                 pci_address_space_io(dev));
@@ -121,7 +125,7 @@ static void piix4_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo piix4_info = {
-    .name          = "PIIX4",
+    .name          = TYPE_PIIX4_PCI_DEVICE,
     .parent        = TYPE_PCI_DEVICE,
     .instance_size = sizeof(PIIX4State),
     .class_init    = piix4_class_init,
diff --git a/hw/isa/vt82c686.c b/hw/isa/vt82c686.c
index b2ba870..252e1d7 100644
--- a/hw/isa/vt82c686.c
+++ b/hw/isa/vt82c686.c
@@ -47,6 +47,10 @@ typedef struct VT82C686BState {
     SuperIOConfig superio_conf;
 } VT82C686BState;
 
+#define TYPE_VT82C686B_DEVICE "VT82C686B"
+#define VT82C686B_DEVICE(obj) \
+    OBJECT_CHECK(VT82C686BState, (obj), TYPE_VT82C686B_DEVICE)
+
 static void superio_ioport_writeb(void *opaque, hwaddr addr, uint64_t data,
                                   unsigned size)
 {
@@ -114,7 +118,7 @@ static void vt82c686b_reset(void * opaque)
 {
     PCIDevice *d = opaque;
     uint8_t *pci_conf = d->config;
-    VT82C686BState *vt82c = DO_UPCAST(VT82C686BState, dev, d);
+    VT82C686BState *vt82c = VT82C686B_DEVICE(d);
 
     pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0);
     pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
@@ -142,7 +146,7 @@ static void vt82c686b_reset(void * opaque)
 static void vt82c686b_write_config(PCIDevice * d, uint32_t address,
                                    uint32_t val, int len)
 {
-    VT82C686BState *vt686 = DO_UPCAST(VT82C686BState, dev, d);
+    VT82C686BState *vt686 = VT82C686B_DEVICE(d);
 
     DPRINTF("vt82c686b_write_config  address 0x%x  val 0x%x len 0x%x\n",
            address, val, len);
@@ -172,6 +176,18 @@ typedef struct VT686MC97State {
     PCIDevice dev;
 } VT686MC97State;
 
+#define TYPE_VT82C686B_PM_DEVICE "VT82C686B_PM"
+#define VT82C686B_PM_DEVICE(obj) \
+    OBJECT_CHECK(VT686PMState, (obj), TYPE_VT82C686B_PM_DEVICE)
+
+#define TYPE_VT82C686B_MC97_DEVICE "VT82C686B_MC97"
+#define VT82C686B_MC97_DEVICE(obj) \
+    OBJECT_CHECK(VT686MC97State, (obj), TYPE_VT82C686B_MC97_DEVICE)
+
+#define TYPE_VT82C686B_AC97_DEVICE "VT82C686B_AC97"
+#define VT82C686B_AC97_DEVICE(obj) \
+    OBJECT_CHECK(VT686AC97State, (obj), TYPE_VT82C686B_AC97_DEVICE)
+
 static void pm_update_sci(VT686PMState *s)
 {
     int sci_level, pmsts;
@@ -247,7 +263,7 @@ static const VMStateDescription vmstate_acpi = {
 
 static void vt82c686b_ac97_realize(PCIDevice *dev, Error **errp)
 {
-    VT686AC97State *s = DO_UPCAST(VT686AC97State, dev, dev);
+    VT686AC97State *s = VT82C686B_AC97_DEVICE(dev);
     uint8_t *pci_conf = s->dev.config;
 
     pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_INVALIDATE |
@@ -261,7 +277,7 @@ void vt82c686b_ac97_init(PCIBus *bus, int devfn)
 {
     PCIDevice *dev;
 
-    dev = pci_create(bus, devfn, "VT82C686B_AC97");
+    dev = pci_create(bus, devfn, TYPE_VT82C686B_AC97_DEVICE);
     qdev_init_nofail(&dev->qdev);
 }
 
@@ -280,7 +296,7 @@ static void via_ac97_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo via_ac97_info = {
-    .name          = "VT82C686B_AC97",
+    .name          = TYPE_VT82C686B_AC97_DEVICE,
     .parent        = TYPE_PCI_DEVICE,
     .instance_size = sizeof(VT686AC97State),
     .class_init    = via_ac97_class_init,
@@ -288,7 +304,7 @@ static const TypeInfo via_ac97_info = {
 
 static void vt82c686b_mc97_realize(PCIDevice *dev, Error **errp)
 {
-    VT686MC97State *s = DO_UPCAST(VT686MC97State, dev, dev);
+    VT686MC97State *s = VT82C686B_MC97_DEVICE(dev);
     uint8_t *pci_conf = s->dev.config;
 
     pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_INVALIDATE |
@@ -301,7 +317,7 @@ void vt82c686b_mc97_init(PCIBus *bus, int devfn)
 {
     PCIDevice *dev;
 
-    dev = pci_create(bus, devfn, "VT82C686B_MC97");
+    dev = pci_create(bus, devfn, TYPE_VT82C686B_MC97_DEVICE);
     qdev_init_nofail(&dev->qdev);
 }
 
@@ -320,7 +336,7 @@ static void via_mc97_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo via_mc97_info = {
-    .name          = "VT82C686B_MC97",
+    .name          = TYPE_VT82C686B_MC97_DEVICE,
     .parent        = TYPE_PCI_DEVICE,
     .instance_size = sizeof(VT686MC97State),
     .class_init    = via_mc97_class_init,
@@ -329,7 +345,7 @@ static const TypeInfo via_mc97_info = {
 /* vt82c686 pm init */
 static void vt82c686b_pm_realize(PCIDevice *dev, Error **errp)
 {
-    VT686PMState *s = DO_UPCAST(VT686PMState, dev, dev);
+    VT686PMState *s = VT82C686B_PM_DEVICE(dev);
     uint8_t *pci_conf;
 
     pci_conf = s->dev.config;
@@ -365,10 +381,10 @@ I2CBus *vt82c686b_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
     PCIDevice *dev;
     VT686PMState *s;
 
-    dev = pci_create(bus, devfn, "VT82C686B_PM");
+    dev = pci_create(bus, devfn, TYPE_VT82C686B_PM_DEVICE);
     qdev_prop_set_uint32(&dev->qdev, "smb_io_base", smb_io_base);
 
-    s = DO_UPCAST(VT686PMState, dev, dev);
+    s = VT82C686B_PM_DEVICE(dev);
 
     qdev_init_nofail(&dev->qdev);
 
@@ -398,7 +414,7 @@ static void via_pm_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo via_pm_info = {
-    .name          = "VT82C686B_PM",
+    .name          = TYPE_VT82C686B_PM_DEVICE,
     .parent        = TYPE_PCI_DEVICE,
     .instance_size = sizeof(VT686PMState),
     .class_init    = via_pm_class_init,
@@ -417,7 +433,7 @@ static const VMStateDescription vmstate_via = {
 /* init the PCI-to-ISA bridge */
 static void vt82c686b_realize(PCIDevice *d, Error **errp)
 {
-    VT82C686BState *vt82c = DO_UPCAST(VT82C686BState, dev, d);
+    VT82C686BState *vt82c = VT82C686B_DEVICE(d);
     uint8_t *pci_conf;
     ISABus *isa_bus;
     uint8_t *wmask;
@@ -451,7 +467,8 @@ ISABus *vt82c686b_init(PCIBus *bus, int devfn)
 {
     PCIDevice *d;
 
-    d = pci_create_simple_multifunction(bus, devfn, true, "VT82C686B");
+    d = pci_create_simple_multifunction(bus, devfn, true,
+                                        TYPE_VT82C686B_DEVICE);
 
     return ISA_BUS(qdev_get_child_bus(DEVICE(d), "isa.0"));
 }
@@ -477,7 +494,7 @@ static void via_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo via_info = {
-    .name          = "VT82C686B",
+    .name          = TYPE_VT82C686B_DEVICE,
     .parent        = TYPE_PCI_DEVICE,
     .instance_size = sizeof(VT82C686BState),
     .class_init    = via_class_init,
diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
index ed2424c..ad55f99 100644
--- a/hw/pci-host/piix.c
+++ b/hw/pci-host/piix.c
@@ -91,6 +91,10 @@ typedef struct PIIX3State {
     MemoryRegion rcr_mem;
 } PIIX3State;
 
+#define TYPE_PIIX3_PCI_DEVICE "pci-piix3"
+#define PIIX3_PCI_DEVICE(obj) \
+    OBJECT_CHECK(PIIX3State, (obj), TYPE_PIIX3_PCI_DEVICE)
+
 #define TYPE_I440FX_PCI_DEVICE "i440FX"
 #define I440FX_PCI_DEVICE(obj) \
     OBJECT_CHECK(PCII440FXState, (obj), TYPE_I440FX_PCI_DEVICE)
@@ -368,13 +372,15 @@ PCIBus *i440fx_init(PCII440FXState **pi440fx_state,
      * connected to the IOAPIC directly.
      * These additional routes can be discovered through ACPI. */
     if (xen_enabled()) {
-        piix3 = DO_UPCAST(PIIX3State, dev,
-                pci_create_simple_multifunction(b, -1, true, "PIIX3-xen"));
+        PCIDevice *pci_dev = pci_create_simple_multifunction(b,
+                             -1, true, "PIIX3-xen");
+        piix3 = PIIX3_PCI_DEVICE(pci_dev);
         pci_bus_irqs(b, xen_piix3_set_irq, xen_pci_slot_get_pirq,
                 piix3, XEN_PIIX_NUM_PIRQS);
     } else {
-        piix3 = DO_UPCAST(PIIX3State, dev,
-                pci_create_simple_multifunction(b, -1, true, "PIIX3"));
+        PCIDevice *pci_dev = pci_create_simple_multifunction(b,
+                             -1, true, "PIIX3");
+        piix3 = PIIX3_PCI_DEVICE(pci_dev);
         pci_bus_irqs(b, piix3_set_irq, pci_slot_get_pirq, piix3,
                 PIIX_NUM_PIRQS);
         pci_bus_set_route_irq_fn(b, piix3_route_intx_pin_to_irq);
@@ -480,7 +486,7 @@ static void piix3_write_config(PCIDevice *dev,
 {
     pci_default_write_config(dev, address, val, len);
     if (ranges_overlap(address, len, PIIX_PIRQC, 4)) {
-        PIIX3State *piix3 = DO_UPCAST(PIIX3State, dev, dev);
+        PIIX3State *piix3 = PIIX3_PCI_DEVICE(dev);
         int pic_irq;
 
         pci_bus_fire_intx_routing_notifier(piix3->dev.bus);
@@ -634,7 +640,7 @@ static const MemoryRegionOps rcr_ops = {
 
 static void piix3_realize(PCIDevice *dev, Error **errp)
 {
-    PIIX3State *d = DO_UPCAST(PIIX3State, dev, dev);
+    PIIX3State *d = PIIX3_PCI_DEVICE(dev);
 
     isa_bus_new(DEVICE(d), get_system_memory(),
                 pci_address_space_io(dev));
@@ -647,7 +653,7 @@ static void piix3_realize(PCIDevice *dev, Error **errp)
     qemu_register_reset(piix3_reset, d);
 }
 
-static void piix3_class_init(ObjectClass *klass, void *data)
+static void pci_piix3_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
@@ -656,7 +662,6 @@ static void piix3_class_init(ObjectClass *klass, void *data)
     dc->vmsd        = &vmstate_piix3;
     dc->hotpluggable   = false;
     k->realize      = piix3_realize;
-    k->config_write = piix3_write_config;
     k->vendor_id    = PCI_VENDOR_ID_INTEL;
     /* 82371SB PIIX3 PCI-to-ISA bridge (Step A1) */
     k->device_id    = PCI_DEVICE_ID_INTEL_82371SB_0;
@@ -668,38 +673,37 @@ static void piix3_class_init(ObjectClass *klass, void *data)
     dc->cannot_instantiate_with_device_add_yet = true;
 }
 
+static const TypeInfo piix3_pci_type_info = {
+    .name = TYPE_PIIX3_PCI_DEVICE,
+    .parent = TYPE_PCI_DEVICE,
+    .instance_size = sizeof(PIIX3State),
+    .abstract = true,
+    .class_init = pci_piix3_class_init,
+};
+
+static void piix3_class_init(ObjectClass *klass, void *data)
+{
+    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+    k->config_write = piix3_write_config;
+}
+
 static const TypeInfo piix3_info = {
     .name          = "PIIX3",
-    .parent        = TYPE_PCI_DEVICE,
-    .instance_size = sizeof(PIIX3State),
+    .parent        = TYPE_PIIX3_PCI_DEVICE,
     .class_init    = piix3_class_init,
 };
 
 static void piix3_xen_class_init(ObjectClass *klass, void *data)
 {
-    DeviceClass *dc = DEVICE_CLASS(klass);
     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 
-    dc->desc        = "ISA bridge";
-    dc->vmsd        = &vmstate_piix3;
-    dc->hotpluggable   = false;
-    k->realize      = piix3_realize;
     k->config_write = piix3_write_config_xen;
-    k->vendor_id    = PCI_VENDOR_ID_INTEL;
-    /* 82371SB PIIX3 PCI-to-ISA bridge (Step A1) */
-    k->device_id    = PCI_DEVICE_ID_INTEL_82371SB_0;
-    k->class_id     = PCI_CLASS_BRIDGE_ISA;
-    /*
-     * Reason: part of PIIX3 southbridge, needs to be wired up by
-     * pc_piix.c's pc_init1()
-     */
-    dc->cannot_instantiate_with_device_add_yet = true;
 };
 
 static const TypeInfo piix3_xen_info = {
     .name          = "PIIX3-xen",
-    .parent        = TYPE_PCI_DEVICE,
-    .instance_size = sizeof(PIIX3State),
+    .parent        = TYPE_PIIX3_PCI_DEVICE,
     .class_init    = piix3_xen_class_init,
 };
 
@@ -772,6 +776,7 @@ static const TypeInfo i440fx_pcihost_info = {
 static void i440fx_register_types(void)
 {
     type_register_static(&i440fx_info);
+    type_register_static(&piix3_pci_type_info);
     type_register_static(&piix3_info);
     type_register_static(&piix3_xen_info);
     type_register_static(&i440fx_pcihost_info);
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 45394cf..442f822 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -428,6 +428,10 @@ static int get_pci_config_device(QEMUFile *f, void *pv, size_t size)
     for (i = 0; i < size; ++i) {
         if ((config[i] ^ s->config[i]) &
             s->cmask[i] & ~s->wmask[i] & ~s->w1cmask[i]) {
+            error_report("%s: Bad config data: i=0x%x read: %x device: %x "
+                         "cmask: %x wmask: %x w1cmask:%x", __func__,
+                         i, config[i], s->config[i],
+                         s->cmask[i], s->wmask[i], s->w1cmask[i]);
             g_free(config);
             return -EINVAL;
         }
diff --git a/hw/watchdog/wdt_i6300esb.c b/hw/watchdog/wdt_i6300esb.c
index 4ebdbb8..cfa2b1b 100644
--- a/hw/watchdog/wdt_i6300esb.c
+++ b/hw/watchdog/wdt_i6300esb.c
@@ -103,6 +103,10 @@ struct I6300State {
 
 typedef struct I6300State I6300State;
 
+#define TYPE_WATCHDOG_I6300ESB_DEVICE "i6300esb"
+#define WATCHDOG_I6300ESB_DEVICE(obj) \
+    OBJECT_CHECK(I6300State, (obj), TYPE_WATCHDOG_I6300ESB_DEVICE)
+
 /* This function is called when the watchdog has either been enabled
  * (hence it starts counting down) or has been keep-alived.
  */
@@ -150,7 +154,7 @@ static void i6300esb_disable_timer(I6300State *d)
 static void i6300esb_reset(DeviceState *dev)
 {
     PCIDevice *pdev = PCI_DEVICE(dev);
-    I6300State *d = DO_UPCAST(I6300State, dev, pdev);
+    I6300State *d = WATCHDOG_I6300ESB_DEVICE(pdev);
 
     i6300esb_debug("I6300State = %p\n", d);
 
@@ -213,7 +217,7 @@ static void i6300esb_timer_expired(void *vp)
 static void i6300esb_config_write(PCIDevice *dev, uint32_t addr,
                                   uint32_t data, int len)
 {
-    I6300State *d = DO_UPCAST(I6300State, dev, dev);
+    I6300State *d = WATCHDOG_I6300ESB_DEVICE(dev);
     int old;
 
     i6300esb_debug("addr = %x, data = %x, len = %d\n", addr, data, len);
@@ -241,7 +245,7 @@ static void i6300esb_config_write(PCIDevice *dev, uint32_t addr,
 
 static uint32_t i6300esb_config_read(PCIDevice *dev, uint32_t addr, int len)
 {
-    I6300State *d = DO_UPCAST(I6300State, dev, dev);
+    I6300State *d = WATCHDOG_I6300ESB_DEVICE(dev);
     uint32_t data;
 
     i6300esb_debug ("addr = %x, len = %d\n", addr, len);
@@ -416,7 +420,7 @@ static const VMStateDescription vmstate_i6300esb = {
 
 static void i6300esb_realize(PCIDevice *dev, Error **errp)
 {
-    I6300State *d = DO_UPCAST(I6300State, dev, dev);
+    I6300State *d = WATCHDOG_I6300ESB_DEVICE(dev);
 
     i6300esb_debug("I6300State = %p\n", d);
 
@@ -451,7 +455,7 @@ static void i6300esb_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo i6300esb_info = {
-    .name          = "i6300esb",
+    .name          = TYPE_WATCHDOG_I6300ESB_DEVICE,
     .parent        = TYPE_PCI_DEVICE,
     .instance_size = sizeof(I6300State),
     .class_init    = i6300esb_class_init,
diff --git a/hw/xen/xen_pt.c b/hw/xen/xen_pt.c
index 329dbd2..ed5fcae 100644
--- a/hw/xen/xen_pt.c
+++ b/hw/xen/xen_pt.c
@@ -125,7 +125,7 @@ int xen_pt_bar_offset_to_index(uint32_t offset)
 
 static uint32_t xen_pt_pci_read_config(PCIDevice *d, uint32_t addr, int len)
 {
-    XenPCIPassthroughState *s = DO_UPCAST(XenPCIPassthroughState, dev, d);
+    XenPCIPassthroughState *s = XEN_PT_DEVICE(d);
     uint32_t val = 0;
     XenPTRegGroup *reg_grp_entry = NULL;
     XenPTReg *reg_entry = NULL;
@@ -230,7 +230,7 @@ exit:
 static void xen_pt_pci_write_config(PCIDevice *d, uint32_t addr,
                                     uint32_t val, int len)
 {
-    XenPCIPassthroughState *s = DO_UPCAST(XenPCIPassthroughState, dev, d);
+    XenPCIPassthroughState *s = XEN_PT_DEVICE(d);
     int index = 0;
     XenPTRegGroup *reg_grp_entry = NULL;
     int rc = 0;
@@ -687,7 +687,7 @@ static const MemoryListener xen_pt_io_listener = {
 
 static int xen_pt_initfn(PCIDevice *d)
 {
-    XenPCIPassthroughState *s = DO_UPCAST(XenPCIPassthroughState, dev, d);
+    XenPCIPassthroughState *s = XEN_PT_DEVICE(d);
     int rc = 0;
     uint8_t machine_irq = 0;
     uint16_t cmd = 0;
@@ -800,7 +800,7 @@ out:
 
 static void xen_pt_unregister_device(PCIDevice *d)
 {
-    XenPCIPassthroughState *s = DO_UPCAST(XenPCIPassthroughState, dev, d);
+    XenPCIPassthroughState *s = XEN_PT_DEVICE(d);
     uint8_t machine_irq = s->machine_irq;
     uint8_t intx = xen_pt_pci_intx(s);
     int rc;
@@ -871,7 +871,7 @@ static void xen_pci_passthrough_class_init(ObjectClass *klass, void *data)
 };
 
 static const TypeInfo xen_pci_passthrough_info = {
-    .name = "xen-pci-passthrough",
+    .name = TYPE_XEN_PT_DEVICE,
     .parent = TYPE_PCI_DEVICE,
     .instance_size = sizeof(XenPCIPassthroughState),
     .class_init = xen_pci_passthrough_class_init,
diff --git a/hw/xen/xen_pt.h b/hw/xen/xen_pt.h
index 232165a..393f36c 100644
--- a/hw/xen/xen_pt.h
+++ b/hw/xen/xen_pt.h
@@ -36,6 +36,10 @@ typedef struct XenPTReg XenPTReg;
 
 typedef struct XenPCIPassthroughState XenPCIPassthroughState;
 
+#define TYPE_XEN_PT_DEVICE "xen-pci-passthrough"
+#define XEN_PT_DEVICE(obj) \
+    OBJECT_CHECK(XenPCIPassthroughState, (obj), TYPE_XEN_PT_DEVICE)
+
 /* function type for config reg */
 typedef int (*xen_pt_conf_reg_init)
     (XenPCIPassthroughState *, XenPTRegInfo *, uint32_t real_offset,