From 2ba6edf0dd740166632df80caa85992b20791a68 Mon Sep 17 00:00:00 2001 From: Stefan Weil Date: Wed, 20 Jan 2010 22:58:33 +0100 Subject: [PATCH] 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 Signed-off-by: Anthony Liguori --- hw/qdev-properties.c | 15 +++++++++++++-- 1 file 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) { -- 2.11.4.GIT