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qdev: rework device properties.

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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>
This commit is contained in:
Gerd Hoffmann 2009-07-15 13:43:31 +02:00 • committed by Anthony Liguori
parent f114784f69
commit ee6847d19b
47 changed files with 921 additions and 391 deletions
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12
hw/xilinx.h
View file

@ -8,7 +8,7 @@ xilinx_intc_create(target_phys_addr_t base, qemu_irq irq, int kind_of_intr)
DeviceState *dev;
dev = qdev_create(NULL, "xilinx,intc");
qdev_set_prop_int(dev, "kind-of-intr", kind_of_intr);
qdev_prop_set_uint32(dev, "kind-of-intr", kind_of_intr);
qdev_init(dev);
sysbus_mmio_map(sysbus_from_qdev(dev), 0, base);
sysbus_connect_irq(sysbus_from_qdev(dev), 0, irq);
@ -22,8 +22,8 @@ xilinx_timer_create(target_phys_addr_t base, qemu_irq irq, int nr, int freq)
DeviceState *dev;
dev = qdev_create(NULL, "xilinx,timer");
qdev_set_prop_int(dev, "nr-timers", nr);
qdev_set_prop_int(dev, "frequency", freq);
qdev_prop_set_uint32(dev, "nr-timers", nr);
qdev_prop_set_uint32(dev, "frequency", freq);
qdev_init(dev);
sysbus_mmio_map(sysbus_from_qdev(dev), 0, base);
sysbus_connect_irq(sysbus_from_qdev(dev), 0, irq);
@ -40,9 +40,9 @@ xilinx_ethlite_create(NICInfo *nd, target_phys_addr_t base, qemu_irq irq,
qemu_check_nic_model(nd, "xilinx-ethlite");
dev = qdev_create(NULL, "xilinx,ethlite");
qdev_set_netdev(dev, nd);
qdev_set_prop_int(dev, "txpingpong", txpingpong);
qdev_set_prop_int(dev, "rxpingpong", rxpingpong);
dev->nd = nd;
qdev_prop_set_uint32(dev, "txpingpong", txpingpong);
qdev_prop_set_uint32(dev, "rxpingpong", rxpingpong);
qdev_init(dev);
sysbus_mmio_map(sysbus_from_qdev(dev), 0, base);
sysbus_connect_irq(sysbus_from_qdev(dev), 0, irq);