From d7741743f4f3d2683d1bb6938f88dc0167c21afa Mon Sep 17 00:00:00 2001 From: Eduardo Habkost Date: Thu, 10 Jan 2019 16:04:57 -0200 Subject: globals: Allow global properties to be optional MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Making some global properties optional will let us simplify compat code when a given property works on most (but not all) subclasses of a given type. Device types will be able to opt out from optional compat properties by simply not registering those properties. Signed-off-by: Eduardo Habkost Reviewed-by: Cornelia Huck Reviewed-by: Marc-André Lureau Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- include/hw/qdev-core.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h index 9614f76..0a84c42 100644 --- a/include/hw/qdev-core.h +++ b/include/hw/qdev-core.h @@ -250,6 +250,8 @@ struct PropertyInfo { /** * GlobalProperty: * @used: Set to true if property was used when initializing a device. + * @optional: If set to true, GlobalProperty will be skipped without errors + * if the property doesn't exist. * * An error is fatal for non-hotplugged devices, when the global is applied. */ @@ -258,6 +260,7 @@ typedef struct GlobalProperty { const char *property; const char *value; bool used; + bool optional; } GlobalProperty; static inline void -- cgit v1.1