diff options
| author | Stefan Weil <weil@mail.berlios.de> | 2010-01-20 22:58:33 +0100 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-01-26 15:42:01 -0600 |
| commit | 2ba6edf0dd740166632df80caa85992b20791a68 (patch) | |
| tree | 4d3463b8970f64117385903e767d9e1b42831b60 | |
| parent | ee636500d6eab44b83f09cb730b67226b70423b1 (diff) | |
qdev: Add help for device properties
When called with property "?", a list of supported
properties will be printed (instead of an error message).
This is useful for command lines like
qemu -device e1000,?
and was already standard for other options like model=?
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| -rw-r--r-- | hw/qdev-properties.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/hw/qdev-properties.c b/hw/qdev-properties.c index 277ff9e780..8547ad27d4 100644 --- a/hw/qdev-properties.c +++ b/hw/qdev-properties.c @@ -544,8 +544,19 @@ int qdev_prop_parse(DeviceState *dev, const char *name, const char *value) prop = qdev_prop_find(dev, name); if (!prop) { - fprintf(stderr, "property \"%s.%s\" not found\n", - dev->info->name, name); + if (strcmp(name, "?") != 0) { + fprintf(stderr, "property \"%s.%s\" not found\n", + dev->info->name, name); + } else { + fprintf(stderr, "supported properties:\n"); + if (dev->info->props != NULL) { + Property *props = dev->info->props; + while (props->name) { + fprintf(stderr, "%s.%s\n", dev->info->name, props->name); + props++; + } + } + } return -1; } if (!prop->info->parse) { |