qdev: rework device properties.

This patch is a major overhaul of the device properties.  The properties
are saved directly in the device state struct now, the linked list of
property values is gone.

Advantages:
  * We don't have to maintain the list with the property values.
  * The value in the property list and the value actually used by
    the device can't go out of sync any more (used to happen for
    the pci.devfn == -1 case) because there is only one place where
    the value is stored.
  * A record describing the property is required now, you can't set
    random properties any more.

There are bus-specific and device-specific properties.  The former
should be used for properties common to all bus drivers.  Typical
use case is bus addressing, i.e. pci.devfn and i2c.address.

Properties have a PropertyInfo struct attached with name, size and
function pointers to parse and print properties.  A few common property
types have PropertyInfos defined in qdev-properties.c.  Drivers are free
to implement their own very special property parsers if needed.

Properties can have default values.  If unset they are zero-filled.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/hw/pc.c b/hw/pc.c
index b47c95d72a..7bb67ea9e7 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -1402,8 +1402,8 @@ static void pc_init1(ram_addr_t ram_size,
         for (i = 0; i < 8; i++) {
             DeviceState *eeprom;
             eeprom = qdev_create((BusState *)smbus, "smbus-eeprom");
-            qdev_set_prop_int(eeprom, "address", 0x50 + i);
-            qdev_set_prop_ptr(eeprom, "data", eeprom_buf + (i * 256));
+            qdev_prop_set_uint32(eeprom, "address", 0x50 + i);
+            qdev_prop_set_ptr(eeprom, "data", eeprom_buf + (i * 256));
             qdev_init(eeprom);
         }
     }