QOM patches for 2020-06-15

[PULL 70/84] sysbus: New sysbus_realize(), sysbus_realize_and_unref()

Markus Armbruster posted 84 patches 5 years, 5 months ago

Download mbox

Maintainers: Eduardo Habkost <ehabkost@redhat.com>, Leif Lindholm <leif@nuviainc.com>, Michael Walle <michael@walle.cc>, Chris Wulff <crwulff@gmail.com>, Matthew Rosato <mjrosato@linux.ibm.com>, Max Filippov <jcmvbkbc@gmail.com>, Juan Quintela <quintela@redhat.com>, Aurelien Jarno <aurelien@aurel32.net>, Fam Zheng <fam@euphon.net>, "Cédric Le Goater" <clg@kaod.org>, Fabien Chouteau <chouteau@adacore.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, BALATON Zoltan <balaton@eik.bme.hu>, Sagar Karandikar <sagark@eecs.berkeley.edu>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Andrzej Zaborowski <balrogg@gmail.com>, Andrew Jeffery <andrew@aj.id.au>, Cornelia Huck <cohuck@redhat.com>, Alistair Francis <Alistair.Francis@wdc.com>, Paul Burton <pburton@wavecomp.com>, Stefano Stabellini <sstabellini@kernel.org>, Subbaraya Sundeep <sundeep.lkml@gmail.com>, Helge Deller <deller@gmx.de>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, Radoslaw Biernacki <radoslaw.biernacki@linaro.org>, John Snow <jsnow@redhat.com>, Halil Pasic <pasic@linux.ibm.com>, Anthony Perard <anthony.perard@citrix.com>, Jan Kiszka <jan.kiszka@web.de>, "Michael S. Tsirkin" <mst@redhat.com>, Tony Krowiak <akrowiak@linux.ibm.com>, Joel Stanley <joel@jms.id.au>, Rob Herring <robh@kernel.org>, Paul Durrant <paul@xen.org>, Jason Wang <jasowang@redhat.com>, David Gibson <david@gibson.dropbear.id.au>, Jean-Christophe Dubois <jcd@tribudubois.net>, Peter Maydell <peter.maydell@linaro.org>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Samuel Thibault <samuel.thibault@ens-lyon.org>, "Philippe Mathieu-Daudé" <philmd@redhat.com>, David Hildenbrand <david@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Thomas Huth <thuth@redhat.com>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, Jia Liu <proljc@gmail.com>, Andrey Smirnov <andrew.smirnov@gmail.com>, KONRAD Frederic <frederic.konrad@adacore.com>, Beniamino Galvani <b.galvani@gmail.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Laurent Vivier <laurent@vivier.eu>, Max Reitz <mreitz@redhat.com>, Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>, "Daniel P. Berrangé" <berrange@redhat.com>, Richard Henderson <rth@twiddle.net>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Corey Minyard <cminyard@mvista.com>, Huacai Chen <chenhc@lemote.com>, Gerd Hoffmann <kraxel@redhat.com>, Kevin Wolf <kwolf@redhat.com>, Peter Chubb <peter.chubb@nicta.com.au>, Paolo Bonzini <pbonzini@redhat.com>, Magnus Damm <magnus.damm@gmail.com>, Igor Mammedov <imammedo@redhat.com>, Pierre Morel <pmorel@linux.ibm.com>, Alistair Francis <alistair@alistair23.me>, Laszlo Ersek <lersek@redhat.com>, Andrew Baumann <Andrew.Baumann@microsoft.com>, Marek Vasut <marex@denx.de>, "Hervé Poussineau" <hpoussin@reactos.org>, Thomas Huth <huth@tuxfamily.org>, Stafford Horne <shorne@gmail.com>, Igor Mitsyanko <i.mitsyanko@gmail.com>, Palmer Dabbelt <palmer@dabbelt.com>, Artyom Tarasenko <atar4qemu@gmail.com>, Niek Linnenbank <nieklinnenbank@gmail.com>, Antony Pavlov <antonynpavlov@gmail.com>

Expand all Fold all

[PULL 70/84] sysbus: New sysbus_realize(), sysbus_realize_and_unref()

Posted by Markus Armbruster 5 years, 5 months ago

Sysbus devices almost always plug into the main system bus.
qdev_create() even has a convenience feature to make that easy: a null
bus argument gets replaced by the main system bus.  qdev_realize() and
qdev_realize_and_unref() do the same.

We can do better.  Provide convenience wrappers around qdev_realize()
and qdev_realize_and_unref() that don't take a @bus argument.  They
always pass the main system bus.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-45-armbru@redhat.com>
---
 include/hw/sysbus.h |  4 +++-
 hw/core/sysbus.c    | 14 ++++++++++++--
 2 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/include/hw/sysbus.h b/include/hw/sysbus.h
index c4a1c0adfa..606095ba35 100644
--- a/include/hw/sysbus.h
+++ b/include/hw/sysbus.h
@@ -90,6 +90,9 @@ void sysbus_add_io(SysBusDevice *dev, hwaddr addr,
                    MemoryRegion *mem);
 MemoryRegion *sysbus_address_space(SysBusDevice *dev);
 
+bool sysbus_realize(SysBusDevice *dev, Error **errp);
+bool sysbus_realize_and_unref(SysBusDevice *dev, Error **errp);
+
 /**
  * sysbus_init_child_obj:
  * @parent: The parent object
@@ -121,5 +124,4 @@ static inline DeviceState *sysbus_create_simple(const char *name,
     return sysbus_create_varargs(name, addr, irq, NULL);
 }
 
-
 #endif /* HW_SYSBUS_H */
diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c
index e8d08d349b..68b837ac85 100644
--- a/hw/core/sysbus.c
+++ b/hw/core/sysbus.c
@@ -217,7 +217,7 @@ void sysbus_init_ioports(SysBusDevice *dev, uint32_t ioport, uint32_t size)
  * from being set to NULL to break the normal init/realize
  * of some devices.
  */
-static void sysbus_realize(DeviceState *dev, Error **errp)
+static void sysbus_device_realize(DeviceState *dev, Error **errp)
 {
 }
 
@@ -250,6 +250,16 @@ DeviceState *sysbus_create_varargs(const char *name,
     return dev;
 }
 
+bool sysbus_realize(SysBusDevice *dev, Error **errp)
+{
+    return qdev_realize(DEVICE(dev), sysbus_get_default(), errp);
+}
+
+bool sysbus_realize_and_unref(SysBusDevice *dev, Error **errp)
+{
+    return qdev_realize_and_unref(DEVICE(dev), sysbus_get_default(), errp);
+}
+
 static void sysbus_dev_print(Monitor *mon, DeviceState *dev, int indent)
 {
     SysBusDevice *s = SYS_BUS_DEVICE(dev);
@@ -301,7 +311,7 @@ MemoryRegion *sysbus_address_space(SysBusDevice *dev)
 static void sysbus_device_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *k = DEVICE_CLASS(klass);
-    k->realize = sysbus_realize;
+    k->realize = sysbus_device_realize;
     k->bus_type = TYPE_SYSTEM_BUS;
     /*
      * device_add plugs devices into a suitable bus.  For "real" buses,
-- 
2.26.2