diff options
author | Gerd Hoffmann <kraxel@redhat.com> | 2009-07-15 13:43:31 +0200 |
---|---|---|
committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-07-16 17:28:51 -0500 |
commit | ee6847d19be16c789b8bd4e553b7cd6701ba1245 (patch) | |
tree | 41845b3b1e8740ce97daf0582e124c6b6e0a6873 /hw/qdev-addr.h | |
parent | f114784f69ec3b9af342148025de14dbd1b429a5 (diff) |
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>
Diffstat (limited to 'hw/qdev-addr.h')
-rw-r--r-- | hw/qdev-addr.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/qdev-addr.h b/hw/qdev-addr.h new file mode 100644 index 0000000000..f02bd7af18 --- /dev/null +++ b/hw/qdev-addr.h @@ -0,0 +1,2 @@ +extern PropertyInfo qdev_prop_taddr; +void qdev_prop_set_taddr(DeviceState *dev, const char *name, target_phys_addr_t value); |