From 07d09c58dbbb9e3c6f6d06e5a27b23531f84a6f6 Mon Sep 17 00:00:00 2001 From: Gonglei Date: Tue, 7 Oct 2014 14:33:23 +0800 Subject: qmp: Print descriptions of object properties MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add a new "description" field to DevicePropertyInfo. The descriptions can serve as documentation in the code, and they can be used to provide better help. For example: $./qemu-system-x86_64 -device virtio-blk-pci,? Before this patch: virtio-blk-pci.iothread=link virtio-blk-pci.x-data-plane=bool virtio-blk-pci.scsi=bool virtio-blk-pci.config-wce=bool virtio-blk-pci.serial=str virtio-blk-pci.secs=uint32 virtio-blk-pci.heads=uint32 virtio-blk-pci.cyls=uint32 virtio-blk-pci.discard_granularity=uint32 virtio-blk-pci.bootindex=int32 virtio-blk-pci.opt_io_size=uint32 virtio-blk-pci.min_io_size=uint16 virtio-blk-pci.physical_block_size=uint16 virtio-blk-pci.logical_block_size=uint16 virtio-blk-pci.drive=str virtio-blk-pci.virtio-backend=child virtio-blk-pci.command_serr_enable=on/off virtio-blk-pci.multifunction=on/off virtio-blk-pci.rombar=uint32 virtio-blk-pci.romfile=str virtio-blk-pci.addr=pci-devfn virtio-blk-pci.event_idx=on/off virtio-blk-pci.indirect_desc=on/off virtio-blk-pci.vectors=uint32 virtio-blk-pci.ioeventfd=on/off virtio-blk-pci.class=uint32 After: virtio-blk-pci.iothread=link virtio-blk-pci.x-data-plane=bool (on/off) virtio-blk-pci.scsi=bool (on/off) virtio-blk-pci.config-wce=bool (on/off) virtio-blk-pci.serial=str virtio-blk-pci.secs=uint32 virtio-blk-pci.heads=uint32 virtio-blk-pci.cyls=uint32 virtio-blk-pci.discard_granularity=uint32 virtio-blk-pci.bootindex=int32 virtio-blk-pci.opt_io_size=uint32 virtio-blk-pci.min_io_size=uint16 virtio-blk-pci.physical_block_size=uint16 (A power of two between 512 and 32768) virtio-blk-pci.logical_block_size=uint16 (A power of two between 512 and 32768) virtio-blk-pci.drive=str (ID of a drive to use as a backend) virtio-blk-pci.virtio-backend=child virtio-blk-pci.command_serr_enable=bool (on/off) virtio-blk-pci.multifunction=bool (on/off) virtio-blk-pci.rombar=uint32 virtio-blk-pci.romfile=str virtio-blk-pci.addr=int32 (Slot and optional function number, example: 06.0 or 06) virtio-blk-pci.event_idx=bool (on/off) virtio-blk-pci.indirect_desc=bool (on/off) virtio-blk-pci.vectors=uint32 virtio-blk-pci.ioeventfd=bool (on/off) virtio-blk-pci.class=uint32 Cc: Markus Armbruster Signed-off-by: Gonglei Reviewed-by: Paolo Bonzini Reviewed-by: Michael S. Tsirkin Reviewed-by: Eric Blake Signed-off-by: Andreas Färber --- qmp.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'qmp.c') diff --git a/qmp.c b/qmp.c index c6767c4..0b4f131 100644 --- a/qmp.c +++ b/qmp.c @@ -442,7 +442,8 @@ ObjectTypeInfoList *qmp_qom_list_types(bool has_implements, */ static DevicePropertyInfo *make_device_property_info(ObjectClass *klass, const char *name, - const char *default_type) + const char *default_type, + const char *description) { DevicePropertyInfo *info; Property *prop; @@ -465,7 +466,9 @@ static DevicePropertyInfo *make_device_property_info(ObjectClass *klass, info = g_malloc0(sizeof(*info)); info->name = g_strdup(prop->name); - info->type = g_strdup(prop->info->legacy_name ?: prop->info->name); + info->type = g_strdup(prop->info->name); + info->has_description = !!prop->info->description; + info->description = g_strdup(prop->info->description); return info; } klass = object_class_get_parent(klass); @@ -475,6 +478,9 @@ static DevicePropertyInfo *make_device_property_info(ObjectClass *klass, info = g_malloc0(sizeof(*info)); info->name = g_strdup(name); info->type = g_strdup(default_type); + info->has_description = !!description; + info->description = g_strdup(description); + return info; } @@ -521,7 +527,8 @@ DevicePropertyInfoList *qmp_device_list_properties(const char *typename, continue; } - info = make_device_property_info(klass, prop->name, prop->type); + info = make_device_property_info(klass, prop->name, prop->type, + prop->description); if (!info) { continue; } -- cgit v1.1