[Qemu-devel] [PATCH 3/7] qdev: add description field in PropertyInfo struct

[<arei.gonglei@huawei.com>]

From: Gonglei <arei.gonglei@huawei.com>

The descriptions can serve as documentation in the code,
and they can be used to provide better help.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
---
 hw/core/qdev-properties-system.c | 4 ++++
 hw/core/qdev-properties.c        | 6 ++++++
 include/hw/qdev-core.h           | 1 +
 target-ppc/translate_init.c      | 1 +
 4 files changed, 12 insertions(+)

diff --git a/hw/core/qdev-properties-system.c b/hw/core/qdev-properties-system.c
index 84caa1d..4c8ea18 100644
--- a/hw/core/qdev-properties-system.c
+++ b/hw/core/qdev-properties-system.c
@@ -113,6 +113,7 @@ static void set_drive(Object *obj, Visitor *v, void *opaque,
 PropertyInfo qdev_prop_drive = {
     .name  = "str",
     .legacy_name  = "drive",
+    .description = "ID of a drive to use as a backend",
     .get   = get_drive,
     .set   = set_drive,
     .release = release_drive,
@@ -170,6 +171,7 @@ static void set_chr(Object *obj, Visitor *v, void *opaque,
 PropertyInfo qdev_prop_chr = {
     .name  = "str",
     .legacy_name  = "chr",
+    .description = "ID of a chardev to use as a backend",
     .get   = get_chr,
     .set   = set_chr,
     .release = release_chr,
@@ -249,6 +251,7 @@ static void set_netdev(Object *obj, Visitor *v, void *opaque,
 PropertyInfo qdev_prop_netdev = {
     .name  = "str",
     .legacy_name  = "netdev",
+    .description = "ID of a netdev to use as a backend",
     .get   = get_netdev,
     .set   = set_netdev,
 };
@@ -329,6 +332,7 @@ static void set_vlan(Object *obj, Visitor *v, void *opaque,
 PropertyInfo qdev_prop_vlan = {
     .name  = "int32",
     .legacy_name  = "vlan",
+    .description = "The value of vlan id",
     .print = print_vlan,
     .get   = get_vlan,
     .set   = set_vlan,
diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index 66556d3..2f7e52b 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -121,6 +121,7 @@ static void prop_set_bit(Object *obj, Visitor *v, void *opaque,
 PropertyInfo qdev_prop_bit = {
     .name  = "bool",
     .legacy_name  = "on/off",
+    .description = "on/off",
     .get   = prop_get_bit,
     .set   = prop_set_bit,
 };
@@ -456,6 +457,7 @@ inval:
 PropertyInfo qdev_prop_macaddr = {
     .name  = "str",
     .legacy_name  = "macaddr",
+    .description = "Ethernet 6-byte MAC Address, format: AA:BB:CC:DD:EE:FF",
     .get   = get_mac,
     .set   = set_mac,
 };
@@ -478,6 +480,7 @@ QEMU_BUILD_BUG_ON(sizeof(BiosAtaTranslation) != sizeof(int));
 PropertyInfo qdev_prop_bios_chs_trans = {
     .name = "BiosAtaTranslation",
     .legacy_name = "bios-chs-trans",
+    .description = "Bios ata translation",
     .enum_table = BiosAtaTranslation_lookup,
     .get = get_enum,
     .set = set_enum,
@@ -552,6 +555,7 @@ static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest,
 PropertyInfo qdev_prop_pci_devfn = {
     .name  = "int32",
     .legacy_name  = "pci-devfn",
+    .description = "The slot number of a pci device",
     .print = print_pci_devfn,
     .get   = get_int32,
     .set   = set_pci_devfn,
@@ -599,6 +603,7 @@ static void set_blocksize(Object *obj, Visitor *v, void *opaque,
 PropertyInfo qdev_prop_blocksize = {
     .name  = "uint16",
     .legacy_name  = "blocksize",
+    .description = "A power of two between 512 and 32768",
     .get   = get_uint16,
     .set   = set_blocksize,
 };
@@ -707,6 +712,7 @@ inval:
 PropertyInfo qdev_prop_pci_host_devaddr = {
     .name = "str",
     .legacy_name = "pci-host-devaddr",
+    .description = "The bdf number of pci on host, such as: 04:10.0",
     .get = get_pci_host_devaddr,
     .set = set_pci_host_devaddr,
 };
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 178fee2..31acbe6 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -233,6 +233,7 @@ struct Property {
 struct PropertyInfo {
     const char *name;
     const char *legacy_name;
+    const char *description;
     const char **enum_table;
     int (*print)(DeviceState *dev, Property *prop, char *dest, size_t len);
     ObjectPropertyAccessor *get;
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 48177ed..56a9f75 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -8045,6 +8045,7 @@ static void powerpc_set_compat(Object *obj, Visitor *v,
 static PropertyInfo powerpc_compat_propinfo = {
     .name = "str",
     .legacy_name = "powerpc-server-compat",
+    .description = "PowerPC server compat",
     .get = powerpc_get_compat,
     .set = powerpc_set_compat,
 };
-- 
1.7.12.4