diff mbox series

[v2,2/2] vmgenid: use UUID property type

Message ID 20171127130518.26703-3-rkagan@virtuozzo.com
State New
Headers show
Series add UUID property type | expand

Commit Message

Roman Kagan Nov. 27, 2017, 1:05 p.m. UTC
Switch vmgenid device to use the UUID property type introduced in the
previous patch for its 'guid' property.

One semantic change it introduces is that post-realize modification of
'guid' via HMP or QMP will now be rejected with an error; however,
according to docs/specs/vmgenid.txt this is actually desirable.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
---
v1 -> v2:
 - use the corresponding define for "guid" field name

 hw/acpi/vmgenid.c | 30 ++++++++----------------------
 1 file changed, 8 insertions(+), 22 deletions(-)

Comments

Cameron Esfahani via Nov. 27, 2017, 4:38 p.m. UTC | #1
It looks like you dropped Marc-André and my Reviewed-by lines.  Please put them back.

> On Nov 27, 2017, at 5:05 AM, Roman Kagan <rkagan@virtuozzo.com> wrote:
> 
> Switch vmgenid device to use the UUID property type introduced in the
> previous patch for its 'guid' property.
> 
> One semantic change it introduces is that post-realize modification of
> 'guid' via HMP or QMP will now be rejected with an error; however,
> according to docs/specs/vmgenid.txt this is actually desirable.
> 
> Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
> ---
> v1 -> v2:
> - use the corresponding define for "guid" field name
> 
> hw/acpi/vmgenid.c | 30 ++++++++----------------------
> 1 file changed, 8 insertions(+), 22 deletions(-)
> 
> diff --git a/hw/acpi/vmgenid.c b/hw/acpi/vmgenid.c
> index 105044f666..ba6f47b67b 100644
> --- a/hw/acpi/vmgenid.c
> +++ b/hw/acpi/vmgenid.c
> @@ -162,21 +162,6 @@ static void vmgenid_update_guest(VmGenIdState *vms)
>     }
> }
> 
> -static void vmgenid_set_guid(Object *obj, const char *value, Error **errp)
> -{
> -    VmGenIdState *vms = VMGENID(obj);
> -
> -    if (!strcmp(value, "auto")) {
> -        qemu_uuid_generate(&vms->guid);
> -    } else if (qemu_uuid_parse(value, &vms->guid) < 0) {
> -        error_setg(errp, "'%s. %s': Failed to parse GUID string: %s",
> -                   object_get_typename(OBJECT(vms)), VMGENID_GUID, value);
> -        return;
> -    }
> -
> -    vmgenid_update_guest(vms);
> -}
> -
> /* After restoring an image, we need to update the guest memory and notify
>  * it of a potential change to VM Generation ID
>  */
> @@ -224,23 +209,24 @@ static void vmgenid_realize(DeviceState *dev, Error **errp)
>     }
> 
>     qemu_register_reset(vmgenid_handle_reset, vms);
> +
> +    vmgenid_update_guest(vms);
> }
> 
> +static Property vmgenid_device_properties[] = {
> +    DEFINE_PROP_UUID(VMGENID_GUID, VmGenIdState, guid),
> +    DEFINE_PROP_END_OF_LIST(),
> +};
> +
> static void vmgenid_device_class_init(ObjectClass *klass, void *data)
> {
>     DeviceClass *dc = DEVICE_CLASS(klass);
> 
>     dc->vmsd = &vmstate_vmgenid;
>     dc->realize = vmgenid_realize;
> +    dc->props = vmgenid_device_properties;
>     dc->hotpluggable = false;
>     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
> -
> -    object_class_property_add_str(klass, VMGENID_GUID, NULL,
> -                                  vmgenid_set_guid, NULL);
> -    object_class_property_set_description(klass, VMGENID_GUID,
> -                                    "Set Global Unique Identifier "
> -                                    "(big-endian) or auto for random value",
> -                                    NULL);
> }
> 
> static const TypeInfo vmgenid_device_info = {
> -- 
> 2.14.3
>
Marc-André Lureau Nov. 27, 2017, 4:52 p.m. UTC | #2
On Mon, Nov 27, 2017 at 2:05 PM, Roman Kagan <rkagan@virtuozzo.com> wrote:
> Switch vmgenid device to use the UUID property type introduced in the
> previous patch for its 'guid' property.
>
> One semantic change it introduces is that post-realize modification of
> 'guid' via HMP or QMP will now be rejected with an error; however,
> according to docs/specs/vmgenid.txt this is actually desirable.
>
> Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>


> ---
> v1 -> v2:
>  - use the corresponding define for "guid" field name
>
>  hw/acpi/vmgenid.c | 30 ++++++++----------------------
>  1 file changed, 8 insertions(+), 22 deletions(-)
>
> diff --git a/hw/acpi/vmgenid.c b/hw/acpi/vmgenid.c
> index 105044f666..ba6f47b67b 100644
> --- a/hw/acpi/vmgenid.c
> +++ b/hw/acpi/vmgenid.c
> @@ -162,21 +162,6 @@ static void vmgenid_update_guest(VmGenIdState *vms)
>      }
>  }
>
> -static void vmgenid_set_guid(Object *obj, const char *value, Error **errp)
> -{
> -    VmGenIdState *vms = VMGENID(obj);
> -
> -    if (!strcmp(value, "auto")) {
> -        qemu_uuid_generate(&vms->guid);
> -    } else if (qemu_uuid_parse(value, &vms->guid) < 0) {
> -        error_setg(errp, "'%s. %s': Failed to parse GUID string: %s",
> -                   object_get_typename(OBJECT(vms)), VMGENID_GUID, value);
> -        return;
> -    }
> -
> -    vmgenid_update_guest(vms);
> -}
> -
>  /* After restoring an image, we need to update the guest memory and notify
>   * it of a potential change to VM Generation ID
>   */
> @@ -224,23 +209,24 @@ static void vmgenid_realize(DeviceState *dev, Error **errp)
>      }
>
>      qemu_register_reset(vmgenid_handle_reset, vms);
> +
> +    vmgenid_update_guest(vms);
>  }
>
> +static Property vmgenid_device_properties[] = {
> +    DEFINE_PROP_UUID(VMGENID_GUID, VmGenIdState, guid),
> +    DEFINE_PROP_END_OF_LIST(),
> +};
> +
>  static void vmgenid_device_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
>
>      dc->vmsd = &vmstate_vmgenid;
>      dc->realize = vmgenid_realize;
> +    dc->props = vmgenid_device_properties;
>      dc->hotpluggable = false;
>      set_bit(DEVICE_CATEGORY_MISC, dc->categories);
> -
> -    object_class_property_add_str(klass, VMGENID_GUID, NULL,
> -                                  vmgenid_set_guid, NULL);
> -    object_class_property_set_description(klass, VMGENID_GUID,
> -                                    "Set Global Unique Identifier "
> -                                    "(big-endian) or auto for random value",
> -                                    NULL);
>  }
>
>  static const TypeInfo vmgenid_device_info = {
> --
> 2.14.3
>
>
Roman Kagan Nov. 28, 2017, 8:02 a.m. UTC | #3
On Mon, Nov 27, 2017 at 08:38:41AM -0800, Ben Warren wrote:
> It looks like you dropped Marc-André and my Reviewed-by lines.  Please put them back.

Oops.  I thought that the amount of changes in the first patch was too
big to keep the R-b; however, the second patch was basically the same so
I should have put the R-b and save you extra work re-reviewing it.
Sorry about that; hope the maintainer who will pick the patches will
take care of R-b (unless I get more feedback that will make me respin the
set).

Roman.
Michael S. Tsirkin Nov. 28, 2017, 2:46 p.m. UTC | #4
On Tue, Nov 28, 2017 at 11:02:13AM +0300, Roman Kagan wrote:
> On Mon, Nov 27, 2017 at 08:38:41AM -0800, Ben Warren wrote:
> > It looks like you dropped Marc-André and my Reviewed-by lines.  Please put them back.
> 
> Oops.  I thought that the amount of changes in the first patch was too
> big to keep the R-b; however, the second patch was basically the same so
> I should have put the R-b and save you extra work re-reviewing it.
> Sorry about that; hope the maintainer who will pick the patches will
> take care of R-b (unless I get more feedback that will make me respin the
> set).
> 
> Roman.

Nope, I don't have the time to mangle patches manually, but people can
ack series, or you can reply to patch youself with some else's ack.
diff mbox series

Patch

diff --git a/hw/acpi/vmgenid.c b/hw/acpi/vmgenid.c
index 105044f666..ba6f47b67b 100644
--- a/hw/acpi/vmgenid.c
+++ b/hw/acpi/vmgenid.c
@@ -162,21 +162,6 @@  static void vmgenid_update_guest(VmGenIdState *vms)
     }
 }
 
-static void vmgenid_set_guid(Object *obj, const char *value, Error **errp)
-{
-    VmGenIdState *vms = VMGENID(obj);
-
-    if (!strcmp(value, "auto")) {
-        qemu_uuid_generate(&vms->guid);
-    } else if (qemu_uuid_parse(value, &vms->guid) < 0) {
-        error_setg(errp, "'%s. %s': Failed to parse GUID string: %s",
-                   object_get_typename(OBJECT(vms)), VMGENID_GUID, value);
-        return;
-    }
-
-    vmgenid_update_guest(vms);
-}
-
 /* After restoring an image, we need to update the guest memory and notify
  * it of a potential change to VM Generation ID
  */
@@ -224,23 +209,24 @@  static void vmgenid_realize(DeviceState *dev, Error **errp)
     }
 
     qemu_register_reset(vmgenid_handle_reset, vms);
+
+    vmgenid_update_guest(vms);
 }
 
+static Property vmgenid_device_properties[] = {
+    DEFINE_PROP_UUID(VMGENID_GUID, VmGenIdState, guid),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void vmgenid_device_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
 
     dc->vmsd = &vmstate_vmgenid;
     dc->realize = vmgenid_realize;
+    dc->props = vmgenid_device_properties;
     dc->hotpluggable = false;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
-
-    object_class_property_add_str(klass, VMGENID_GUID, NULL,
-                                  vmgenid_set_guid, NULL);
-    object_class_property_set_description(klass, VMGENID_GUID,
-                                    "Set Global Unique Identifier "
-                                    "(big-endian) or auto for random value",
-                                    NULL);
 }
 
 static const TypeInfo vmgenid_device_info = {