[Qemu-devel] [PATCH v2 00/21] QOM'ify SysBusDeviceClass->init

[Qemu-devel] [PATCH v2 00/21] QOM'ify SysBusDeviceClass->init

[Mao Zhongyi]

The SysBusDeviceClass::init() interface is considered
as a legacy interface and there are currently some
efforts going on to get rid of it. Thus convert 
SysBusDeviceClass::init to DeviceClass::realize.

v2 -> v1:

- SYS_BUS_DEVICE(dev) was used in a function several
  times, so use a variable 'sbd' to replace it, like:
  SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
- remove the xen_sysdev_init() function
- drop the patch21 in v1
- fix the broken in sysbus_realize of patch22


Cc: alistair.francis@wdc.com
Cc: anthony.perard@citrix.com
Cc: armbru@redhat.com
Cc: borntraeger@de.ibm.com
Cc: chouteau@adacore.com
Cc: cohuck@redhat.com
Cc: david@gibson.dropbear.id.au
Cc: david@redhat.com
Cc: edgar.iglesias@gmail.com
Cc: ehabkost@redhat.com
Cc: f4bug@amsat.org
Cc: gxt@mprc.pku.edu.cn
Cc: jan.kiszka@web.de
Cc: kraxel@redhat.com
Cc: kwolf@redhat.com
Cc: marcandre.lureau@redhat.com
Cc: marcel.apfelbaum@gmail.com
Cc: michael@walle.cc
Cc: mreitz@redhat.com
Cc: mst@redhat.com
Cc: pbonzini@redhat.com
Cc: peter.maydell@linaro.org
Cc: peter.maydell@linaro.org                                                                                                                                                                  
Cc: qemu-arm@nongnu.org
Cc: qemu-block@nongnu.org
Cc: qemu-ppc@nongnu.org
Cc: qemu-s390x@nongnu.org
Cc: richard.henderson@linaro.org
Cc: rth@twiddle.net
Cc: sstabellini@kernel.org
Cc: thuth@redhat.com
Cc: xen-devel@lists.xenproject.org

Mao Zhongyi (21):
  musicpal: Convert sysbus init function to realize function
  block/noenand: Convert sysbus init function to realize function
  char/grlib_apbuart: Convert sysbus init function to realize function
  core/empty_slot: Convert sysbus init function to realize function
  display/g364fb: Convert sysbus init function to realize function
  dma/puv3_dma: Convert sysbus init function to realize function
  gpio/puv3_gpio: Convert sysbus init function to realize function
  milkymist-softusb: Convert sysbus init function to realize function
  input/pl050: Convert sysbus init function to realize function
  intc/puv3_intc: Convert sysbus init function to realize function
  milkymist-hpdmc: Convert sysbus init function to realize function
  milkymist-pfpu: Convert sysbus init function to realize function
  puv3_pm.c: Convert sysbus init function to realize function
  nvram/ds1225y: Convert sysbus init function to realize function
  pci-bridge/dec: Convert sysbus init function to realize function
  timer/etraxfs_timer: Convert sysbus init function to realize function
  timer/grlib_gptimer: Convert sysbus init function to realize function
  timer/puv3_ost: Convert sysbus init function to realize function
  usb/tusb6010: Convert sysbus init function to realize function
  xen_backend: remove xen_sysdev_init() function
  core/sysbus: remove the SysBusDeviceClass::init path

 hw/arm/musicpal.c            |  9 ++++-----
 hw/block/onenand.c           | 16 +++++++---------
 hw/char/grlib_apbuart.c      | 12 +++++-------
 hw/core/empty_slot.c         |  9 ++++-----
 hw/core/sysbus.c             | 15 +++++----------
 hw/display/g364fb.c          |  9 +++------
 hw/dma/puv3_dma.c            | 10 ++++------
 hw/gpio/puv3_gpio.c          | 29 ++++++++++++++---------------
 hw/input/milkymist-softusb.c | 16 +++++++---------
 hw/input/pl050.c             | 11 +++++------
 hw/intc/puv3_intc.c          | 11 ++++-------
 hw/misc/milkymist-hpdmc.c    |  9 +++------
 hw/misc/milkymist-pfpu.c     | 12 +++++-------
 hw/misc/puv3_pm.c            | 10 ++++------
 hw/nvram/ds1225y.c           | 12 +++++-------
 hw/pci-bridge/dec.c          | 11 +++++------
 hw/timer/etraxfs_timer.c     | 14 +++++++-------
 hw/timer/grlib_gptimer.c     | 11 +++++------
 hw/timer/puv3_ost.c          | 13 ++++++-------
 hw/usb/tusb6010.c            |  8 +++-----
 hw/xen/xen_backend.c         |  7 -------
 include/hw/sysbus.h          |  3 ---
 22 files changed, 105 insertions(+), 152 deletions(-)

-- 
2.17.1

[Qemu-devel] [PATCH v2 01/21] musicpal: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
mv88w8618_wlan_class_init().

Cc: jan.kiszka@web.de
Cc: peter.maydell@linaro.org
Cc: qemu-arm@nongnu.org

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/arm/musicpal.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/hw/arm/musicpal.c b/hw/arm/musicpal.c
index 9648b3af44..7ffcdbb097 100644
--- a/hw/arm/musicpal.c
+++ b/hw/arm/musicpal.c
@@ -1147,14 +1147,13 @@ static const MemoryRegionOps mv88w8618_wlan_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static int mv88w8618_wlan_init(SysBusDevice *dev)
+static void mv88w8618_wlan_realize(DeviceState *dev, Error **errp)
 {
     MemoryRegion *iomem = g_new(MemoryRegion, 1);
 
     memory_region_init_io(iomem, OBJECT(dev), &mv88w8618_wlan_ops, NULL,
                           "musicpal-wlan", MP_WLAN_SIZE);
-    sysbus_init_mmio(dev, iomem);
-    return 0;
+    sysbus_init_mmio(SYS_BUS_DEVICE(dev), iomem);
 }
 
 /* GPIO register offsets */
@@ -1720,9 +1719,9 @@ DEFINE_MACHINE("musicpal", musicpal_machine_init)
 
 static void mv88w8618_wlan_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
 
-    sdc->init = mv88w8618_wlan_init;
+    dc->realize = mv88w8618_wlan_realize;
 }
 
 static const TypeInfo mv88w8618_wlan_info = {
-- 
2.17.1

[Qemu-devel] [PATCH v2 02/21] block/noenand: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
onenand_class_init().

Cc: kwolf@redhat.com
Cc: mreitz@redhat.com
Cc: qemu-block@nongnu.org

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
---
 hw/block/onenand.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/hw/block/onenand.c b/hw/block/onenand.c
index 2b48609776..f11118a687 100644
--- a/hw/block/onenand.c
+++ b/hw/block/onenand.c
@@ -772,9 +772,9 @@ static const MemoryRegionOps onenand_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static int onenand_initfn(SysBusDevice *sbd)
+static void onenand_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     OneNANDState *s = ONE_NAND(dev);
     uint32_t size = 1 << (24 + ((s->id.dev >> 4) & 7));
     void *ram;
@@ -794,14 +794,14 @@ static int onenand_initfn(SysBusDevice *sbd)
                           0xff, size + (size >> 5));
     } else {
         if (blk_is_read_only(s->blk)) {
-            error_report("Can't use a read-only drive");
-            return -1;
+            error_setg(errp, "Can't use a read-only drive");
+            return;
         }
         blk_set_perm(s->blk, BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE,
                      BLK_PERM_ALL, &local_err);
         if (local_err) {
-            error_report_err(local_err);
-            return -1;
+            error_propagate(errp, local_err);
+            return;
         }
         s->blk_cur = s->blk;
     }
@@ -826,7 +826,6 @@ static int onenand_initfn(SysBusDevice *sbd)
                      | ((s->id.dev & 0xff) << 8)
                      | (s->id.ver & 0xff),
                      &vmstate_onenand, s);
-    return 0;
 }
 
 static Property onenand_properties[] = {
@@ -841,9 +840,8 @@ static Property onenand_properties[] = {
 static void onenand_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = onenand_initfn;
+    dc->realize = onenand_realize;
     dc->reset = onenand_system_reset;
     dc->props = onenand_properties;
 }
-- 
2.17.1

Re: [Qemu-devel] [PATCH v2 02/21] block/noenand: Convert sysbus init function to realize function

[Philippe Mathieu-Daudé]

On 23/11/18 16:30, Mao Zhongyi wrote:
> Use DeviceClass rather than SysBusDeviceClass in
> onenand_class_init().
> 
> Cc: kwolf@redhat.com
> Cc: mreitz@redhat.com
> Cc: qemu-block@nongnu.org
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>  hw/block/onenand.c | 16 +++++++---------
>  1 file changed, 7 insertions(+), 9 deletions(-)
> 
> diff --git a/hw/block/onenand.c b/hw/block/onenand.c
> index 2b48609776..f11118a687 100644
> --- a/hw/block/onenand.c
> +++ b/hw/block/onenand.c
> @@ -772,9 +772,9 @@ static const MemoryRegionOps onenand_ops = {
>      .endianness = DEVICE_NATIVE_ENDIAN,
>  };
>  
> -static int onenand_initfn(SysBusDevice *sbd)
> +static void onenand_realize(DeviceState *dev, Error **errp)
>  {
> -    DeviceState *dev = DEVICE(sbd);
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>      OneNANDState *s = ONE_NAND(dev);
>      uint32_t size = 1 << (24 + ((s->id.dev >> 4) & 7));
>      void *ram;
> @@ -794,14 +794,14 @@ static int onenand_initfn(SysBusDevice *sbd)
>                            0xff, size + (size >> 5));
>      } else {
>          if (blk_is_read_only(s->blk)) {
> -            error_report("Can't use a read-only drive");
> -            return -1;
> +            error_setg(errp, "Can't use a read-only drive");
> +            return;
>          }
>          blk_set_perm(s->blk, BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE,
>                       BLK_PERM_ALL, &local_err);
>          if (local_err) {
> -            error_report_err(local_err);
> -            return -1;
> +            error_propagate(errp, local_err);
> +            return;
>          }
>          s->blk_cur = s->blk;
>      }
> @@ -826,7 +826,6 @@ static int onenand_initfn(SysBusDevice *sbd)
>                       | ((s->id.dev & 0xff) << 8)
>                       | (s->id.ver & 0xff),
>                       &vmstate_onenand, s);
> -    return 0;
>  }
>  
>  static Property onenand_properties[] = {
> @@ -841,9 +840,8 @@ static Property onenand_properties[] = {
>  static void onenand_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> -    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
>  
> -    k->init = onenand_initfn;
> +    dc->realize = onenand_realize;
>      dc->reset = onenand_system_reset;
>      dc->props = onenand_properties;
>  }
> 

[Qemu-devel] [PATCH v2 03/21] char/grlib_apbuart: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
grlib_apbuart_class_init().

Cc: chouteau@adacore.com
Cc: marcandre.lureau@redhat.com
Cc: pbonzini@redhat.com

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
---
 hw/char/grlib_apbuart.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/hw/char/grlib_apbuart.c b/hw/char/grlib_apbuart.c
index bac11bec58..e1d258b611 100644
--- a/hw/char/grlib_apbuart.c
+++ b/hw/char/grlib_apbuart.c
@@ -239,9 +239,10 @@ static const MemoryRegionOps grlib_apbuart_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static int grlib_apbuart_init(SysBusDevice *dev)
+static void grlib_apbuart_realize(DeviceState *dev, Error **errp)
 {
     UART *uart = GRLIB_APB_UART(dev);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
     qemu_chr_fe_set_handlers(&uart->chr,
                              grlib_apbuart_can_receive,
@@ -249,14 +250,12 @@ static int grlib_apbuart_init(SysBusDevice *dev)
                              grlib_apbuart_event,
                              NULL, uart, NULL, true);
 
-    sysbus_init_irq(dev, &uart->irq);
+    sysbus_init_irq(sbd, &uart->irq);
 
     memory_region_init_io(&uart->iomem, OBJECT(uart), &grlib_apbuart_ops, uart,
                           "uart", UART_REG_SIZE);
 
-    sysbus_init_mmio(dev, &uart->iomem);
-
-    return 0;
+    sysbus_init_mmio(sbd, &uart->iomem);
 }
 
 static void grlib_apbuart_reset(DeviceState *d)
@@ -280,9 +279,8 @@ static Property grlib_apbuart_properties[] = {
 static void grlib_apbuart_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = grlib_apbuart_init;
+    dc->realize = grlib_apbuart_realize;
     dc->reset = grlib_apbuart_reset;
     dc->props = grlib_apbuart_properties;
 }
-- 
2.17.1

Re: [Qemu-devel] [PATCH v2 03/21] char/grlib_apbuart: Convert sysbus init function to realize function

[Philippe Mathieu-Daudé]

On 23/11/18 16:30, Mao Zhongyi wrote:
> Use DeviceClass rather than SysBusDeviceClass in
> grlib_apbuart_class_init().
> 
> Cc: chouteau@adacore.com
> Cc: marcandre.lureau@redhat.com
> Cc: pbonzini@redhat.com
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>  hw/char/grlib_apbuart.c | 12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)
> 
> diff --git a/hw/char/grlib_apbuart.c b/hw/char/grlib_apbuart.c
> index bac11bec58..e1d258b611 100644
> --- a/hw/char/grlib_apbuart.c
> +++ b/hw/char/grlib_apbuart.c
> @@ -239,9 +239,10 @@ static const MemoryRegionOps grlib_apbuart_ops = {
>      .endianness = DEVICE_NATIVE_ENDIAN,
>  };
>  
> -static int grlib_apbuart_init(SysBusDevice *dev)
> +static void grlib_apbuart_realize(DeviceState *dev, Error **errp)
>  {
>      UART *uart = GRLIB_APB_UART(dev);
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>  
>      qemu_chr_fe_set_handlers(&uart->chr,
>                               grlib_apbuart_can_receive,
> @@ -249,14 +250,12 @@ static int grlib_apbuart_init(SysBusDevice *dev)
>                               grlib_apbuart_event,
>                               NULL, uart, NULL, true);
>  
> -    sysbus_init_irq(dev, &uart->irq);
> +    sysbus_init_irq(sbd, &uart->irq);
>  
>      memory_region_init_io(&uart->iomem, OBJECT(uart), &grlib_apbuart_ops, uart,
>                            "uart", UART_REG_SIZE);
>  
> -    sysbus_init_mmio(dev, &uart->iomem);
> -
> -    return 0;
> +    sysbus_init_mmio(sbd, &uart->iomem);
>  }
>  
>  static void grlib_apbuart_reset(DeviceState *d)
> @@ -280,9 +279,8 @@ static Property grlib_apbuart_properties[] = {
>  static void grlib_apbuart_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> -    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
>  
> -    k->init = grlib_apbuart_init;
> +    dc->realize = grlib_apbuart_realize;
>      dc->reset = grlib_apbuart_reset;
>      dc->props = grlib_apbuart_properties;
>  }
> 

[Qemu-devel] [PATCH v2 04/21] core/empty_slot: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
empty_slot_class_init().

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/core/empty_slot.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/hw/core/empty_slot.c b/hw/core/empty_slot.c
index c1b9c2b104..239f78e2a7 100644
--- a/hw/core/empty_slot.c
+++ b/hw/core/empty_slot.c
@@ -71,21 +71,20 @@ void empty_slot_init(hwaddr addr, uint64_t slot_size)
     }
 }
 
-static int empty_slot_init1(SysBusDevice *dev)
+static void empty_slot_realize(DeviceState *dev, Error **errp)
 {
     EmptySlot *s = EMPTY_SLOT(dev);
 
     memory_region_init_io(&s->iomem, OBJECT(s), &empty_slot_ops, s,
                           "empty-slot", s->size);
-    sysbus_init_mmio(dev, &s->iomem);
-    return 0;
+    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->iomem);
 }
 
 static void empty_slot_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
 
-    k->init = empty_slot_init1;
+    dc->realize = empty_slot_realize;
 }
 
 static const TypeInfo empty_slot_info = {
-- 
2.17.1

[Qemu-devel] [PATCH v2 05/21] display/g364fb: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
g364fb_sysbus_class_init().

Cc: pbonzini@redhat.com
Cc: kraxel@redhat.com
Cc: f4bug@amsat.org
Cc: alistair.francis@wdc.com

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
---
 hw/display/g364fb.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/hw/display/g364fb.c b/hw/display/g364fb.c
index 8ad7e5d824..3407adf98d 100644
--- a/hw/display/g364fb.c
+++ b/hw/display/g364fb.c
@@ -489,18 +489,16 @@ typedef struct {
     G364State g364;
 } G364SysBusState;
 
-static int g364fb_sysbus_init(SysBusDevice *sbd)
+static void g364fb_sysbus_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
     G364SysBusState *sbs = G364(dev);
     G364State *s = &sbs->g364;
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
     g364fb_init(dev, s);
     sysbus_init_irq(sbd, &s->irq);
     sysbus_init_mmio(sbd, &s->mem_ctrl);
     sysbus_init_mmio(sbd, &s->mem_vram);
-
-    return 0;
 }
 
 static void g364fb_sysbus_reset(DeviceState *d)
@@ -518,9 +516,8 @@ static Property g364fb_sysbus_properties[] = {
 static void g364fb_sysbus_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = g364fb_sysbus_init;
+    dc->realize = g364fb_sysbus_realize;
     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
     dc->desc = "G364 framebuffer";
     dc->reset = g364fb_sysbus_reset;
-- 
2.17.1

Re: [Qemu-devel] [PATCH v2 05/21] display/g364fb: Convert sysbus init function to realize function

[Philippe Mathieu-Daudé]

On 23/11/18 16:30, Mao Zhongyi wrote:
> Use DeviceClass rather than SysBusDeviceClass in
> g364fb_sysbus_class_init().
> 
> Cc: pbonzini@redhat.com
> Cc: kraxel@redhat.com
> Cc: f4bug@amsat.org
> Cc: alistair.francis@wdc.com
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>  hw/display/g364fb.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/hw/display/g364fb.c b/hw/display/g364fb.c
> index 8ad7e5d824..3407adf98d 100644
> --- a/hw/display/g364fb.c
> +++ b/hw/display/g364fb.c
> @@ -489,18 +489,16 @@ typedef struct {
>      G364State g364;
>  } G364SysBusState;
>  
> -static int g364fb_sysbus_init(SysBusDevice *sbd)
> +static void g364fb_sysbus_realize(DeviceState *dev, Error **errp)
>  {
> -    DeviceState *dev = DEVICE(sbd);
>      G364SysBusState *sbs = G364(dev);
>      G364State *s = &sbs->g364;
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>  
>      g364fb_init(dev, s);
>      sysbus_init_irq(sbd, &s->irq);
>      sysbus_init_mmio(sbd, &s->mem_ctrl);
>      sysbus_init_mmio(sbd, &s->mem_vram);
> -
> -    return 0;
>  }
>  
>  static void g364fb_sysbus_reset(DeviceState *d)
> @@ -518,9 +516,8 @@ static Property g364fb_sysbus_properties[] = {
>  static void g364fb_sysbus_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> -    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
>  
> -    k->init = g364fb_sysbus_init;
> +    dc->realize = g364fb_sysbus_realize;
>      set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
>      dc->desc = "G364 framebuffer";
>      dc->reset = g364fb_sysbus_reset;
> 

[Qemu-devel] [PATCH v2 06/21] dma/puv3_dma: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
puv3_dma_class_init().

Cc: gxt@mprc.pku.edu.cn

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/dma/puv3_dma.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/hw/dma/puv3_dma.c b/hw/dma/puv3_dma.c
index b97a6c1767..c89eade029 100644
--- a/hw/dma/puv3_dma.c
+++ b/hw/dma/puv3_dma.c
@@ -76,7 +76,7 @@ static const MemoryRegionOps puv3_dma_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static int puv3_dma_init(SysBusDevice *dev)
+static void puv3_dma_realize(DeviceState *dev, Error **errp)
 {
     PUV3DMAState *s = PUV3_DMA(dev);
     int i;
@@ -87,16 +87,14 @@ static int puv3_dma_init(SysBusDevice *dev)
 
     memory_region_init_io(&s->iomem, OBJECT(s), &puv3_dma_ops, s, "puv3_dma",
             PUV3_REGS_OFFSET);
-    sysbus_init_mmio(dev, &s->iomem);
-
-    return 0;
+    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->iomem);
 }
 
 static void puv3_dma_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
 
-    sdc->init = puv3_dma_init;
+    dc->realize = puv3_dma_realize;
 }
 
 static const TypeInfo puv3_dma_info = {
-- 
2.17.1

[Qemu-devel] [PATCH v2 07/21] gpio/puv3_gpio: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
puv3_gpio_class_init().

Cc: gxt@mprc.pku.edu.cn
Cc: peter.maydell@linaro.org

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
---
 hw/gpio/puv3_gpio.c | 29 ++++++++++++++---------------
 1 file changed, 14 insertions(+), 15 deletions(-)

diff --git a/hw/gpio/puv3_gpio.c b/hw/gpio/puv3_gpio.c
index 445afccf9f..33241b8564 100644
--- a/hw/gpio/puv3_gpio.c
+++ b/hw/gpio/puv3_gpio.c
@@ -99,36 +99,35 @@ static const MemoryRegionOps puv3_gpio_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static int puv3_gpio_init(SysBusDevice *dev)
+static void puv3_gpio_realize(DeviceState *dev, Error **errp)
 {
     PUV3GPIOState *s = PUV3_GPIO(dev);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
     s->reg_GPLR = 0;
     s->reg_GPDR = 0;
 
     /* FIXME: these irqs not handled yet */
-    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW0]);
-    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW1]);
-    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW2]);
-    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW3]);
-    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW4]);
-    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW5]);
-    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW6]);
-    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW7]);
-    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOHIGH]);
+    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW0]);
+    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW1]);
+    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW2]);
+    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW3]);
+    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW4]);
+    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW5]);
+    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW6]);
+    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW7]);
+    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOHIGH]);
 
     memory_region_init_io(&s->iomem, OBJECT(s), &puv3_gpio_ops, s, "puv3_gpio",
             PUV3_REGS_OFFSET);
-    sysbus_init_mmio(dev, &s->iomem);
-
-    return 0;
+    sysbus_init_mmio(sbd, &s->iomem);
 }
 
 static void puv3_gpio_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
 
-    sdc->init = puv3_gpio_init;
+    dc->realize = puv3_gpio_realize;
 }
 
 static const TypeInfo puv3_gpio_info = {
-- 
2.17.1

Re: [Qemu-devel] [PATCH v2 07/21] gpio/puv3_gpio: Convert sysbus init function to realize function

[Philippe Mathieu-Daudé]

On 23/11/18 16:30, Mao Zhongyi wrote:
> Use DeviceClass rather than SysBusDeviceClass in
> puv3_gpio_class_init().
> 
> Cc: gxt@mprc.pku.edu.cn
> Cc: peter.maydell@linaro.org
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>  hw/gpio/puv3_gpio.c | 29 ++++++++++++++---------------
>  1 file changed, 14 insertions(+), 15 deletions(-)
> 
> diff --git a/hw/gpio/puv3_gpio.c b/hw/gpio/puv3_gpio.c
> index 445afccf9f..33241b8564 100644
> --- a/hw/gpio/puv3_gpio.c
> +++ b/hw/gpio/puv3_gpio.c
> @@ -99,36 +99,35 @@ static const MemoryRegionOps puv3_gpio_ops = {
>      .endianness = DEVICE_NATIVE_ENDIAN,
>  };
>  
> -static int puv3_gpio_init(SysBusDevice *dev)
> +static void puv3_gpio_realize(DeviceState *dev, Error **errp)
>  {
>      PUV3GPIOState *s = PUV3_GPIO(dev);
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>  
>      s->reg_GPLR = 0;
>      s->reg_GPDR = 0;
>  
>      /* FIXME: these irqs not handled yet */
> -    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW0]);
> -    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW1]);
> -    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW2]);
> -    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW3]);
> -    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW4]);
> -    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW5]);
> -    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW6]);
> -    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOLOW7]);
> -    sysbus_init_irq(dev, &s->irq[PUV3_IRQS_GPIOHIGH]);
> +    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW0]);
> +    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW1]);
> +    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW2]);
> +    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW3]);
> +    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW4]);
> +    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW5]);
> +    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW6]);
> +    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOLOW7]);
> +    sysbus_init_irq(sbd, &s->irq[PUV3_IRQS_GPIOHIGH]);
>  
>      memory_region_init_io(&s->iomem, OBJECT(s), &puv3_gpio_ops, s, "puv3_gpio",
>              PUV3_REGS_OFFSET);
> -    sysbus_init_mmio(dev, &s->iomem);
> -
> -    return 0;
> +    sysbus_init_mmio(sbd, &s->iomem);
>  }
>  
>  static void puv3_gpio_class_init(ObjectClass *klass, void *data)
>  {
> -    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
> +    DeviceClass *dc = DEVICE_CLASS(klass);
>  
> -    sdc->init = puv3_gpio_init;
> +    dc->realize = puv3_gpio_realize;
>  }
>  
>  static const TypeInfo puv3_gpio_info = {
> 

[Qemu-devel] [PATCH v2 08/21] milkymist-softusb: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
milkymist_softusb_class_init().

Cc: michael@walle.cc

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
---
 hw/input/milkymist-softusb.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/hw/input/milkymist-softusb.c b/hw/input/milkymist-softusb.c
index ef8f47cd83..8766a17d9e 100644
--- a/hw/input/milkymist-softusb.c
+++ b/hw/input/milkymist-softusb.c
@@ -245,32 +245,31 @@ static void milkymist_softusb_reset(DeviceState *d)
     s->regs[R_CTRL] = CTRL_RESET;
 }
 
-static int milkymist_softusb_init(SysBusDevice *dev)
+static void milkymist_softusb_realize(DeviceState *dev, Error **errp)
 {
     MilkymistSoftUsbState *s = MILKYMIST_SOFTUSB(dev);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
-    sysbus_init_irq(dev, &s->irq);
+    sysbus_init_irq(sbd, &s->irq);
 
     memory_region_init_io(&s->regs_region, OBJECT(s), &softusb_mmio_ops, s,
                           "milkymist-softusb", R_MAX * 4);
-    sysbus_init_mmio(dev, &s->regs_region);
+    sysbus_init_mmio(sbd, &s->regs_region);
 
     /* register pmem and dmem */
     memory_region_init_ram_nomigrate(&s->pmem, OBJECT(s), "milkymist-softusb.pmem",
                            s->pmem_size, &error_fatal);
     vmstate_register_ram_global(&s->pmem);
     s->pmem_ptr = memory_region_get_ram_ptr(&s->pmem);
-    sysbus_init_mmio(dev, &s->pmem);
+    sysbus_init_mmio(sbd, &s->pmem);
     memory_region_init_ram_nomigrate(&s->dmem, OBJECT(s), "milkymist-softusb.dmem",
                            s->dmem_size, &error_fatal);
     vmstate_register_ram_global(&s->dmem);
     s->dmem_ptr = memory_region_get_ram_ptr(&s->dmem);
-    sysbus_init_mmio(dev, &s->dmem);
+    sysbus_init_mmio(sbd, &s->dmem);
 
     hid_init(&s->hid_kbd, HID_KEYBOARD, softusb_kbd_hid_datain);
     hid_init(&s->hid_mouse, HID_MOUSE, softusb_mouse_hid_datain);
-
-    return 0;
 }
 
 static const VMStateDescription vmstate_milkymist_softusb = {
@@ -296,9 +295,8 @@ static Property milkymist_softusb_properties[] = {
 static void milkymist_softusb_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = milkymist_softusb_init;
+    dc->realize = milkymist_softusb_realize;
     dc->reset = milkymist_softusb_reset;
     dc->vmsd = &vmstate_milkymist_softusb;
     dc->props = milkymist_softusb_properties;
-- 
2.17.1

Re: [Qemu-devel] [PATCH v2 08/21] milkymist-softusb: Convert sysbus init function to realize function

[Philippe Mathieu-Daudé]

On 23/11/18 16:30, Mao Zhongyi wrote:
> Use DeviceClass rather than SysBusDeviceClass in
> milkymist_softusb_class_init().
> 
> Cc: michael@walle.cc
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>  hw/input/milkymist-softusb.c | 16 +++++++---------
>  1 file changed, 7 insertions(+), 9 deletions(-)
> 
> diff --git a/hw/input/milkymist-softusb.c b/hw/input/milkymist-softusb.c
> index ef8f47cd83..8766a17d9e 100644
> --- a/hw/input/milkymist-softusb.c
> +++ b/hw/input/milkymist-softusb.c
> @@ -245,32 +245,31 @@ static void milkymist_softusb_reset(DeviceState *d)
>      s->regs[R_CTRL] = CTRL_RESET;
>  }
>  
> -static int milkymist_softusb_init(SysBusDevice *dev)
> +static void milkymist_softusb_realize(DeviceState *dev, Error **errp)
>  {
>      MilkymistSoftUsbState *s = MILKYMIST_SOFTUSB(dev);
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>  
> -    sysbus_init_irq(dev, &s->irq);
> +    sysbus_init_irq(sbd, &s->irq);
>  
>      memory_region_init_io(&s->regs_region, OBJECT(s), &softusb_mmio_ops, s,
>                            "milkymist-softusb", R_MAX * 4);
> -    sysbus_init_mmio(dev, &s->regs_region);
> +    sysbus_init_mmio(sbd, &s->regs_region);
>  
>      /* register pmem and dmem */
>      memory_region_init_ram_nomigrate(&s->pmem, OBJECT(s), "milkymist-softusb.pmem",
>                             s->pmem_size, &error_fatal);
>      vmstate_register_ram_global(&s->pmem);
>      s->pmem_ptr = memory_region_get_ram_ptr(&s->pmem);
> -    sysbus_init_mmio(dev, &s->pmem);
> +    sysbus_init_mmio(sbd, &s->pmem);
>      memory_region_init_ram_nomigrate(&s->dmem, OBJECT(s), "milkymist-softusb.dmem",
>                             s->dmem_size, &error_fatal);
>      vmstate_register_ram_global(&s->dmem);
>      s->dmem_ptr = memory_region_get_ram_ptr(&s->dmem);
> -    sysbus_init_mmio(dev, &s->dmem);
> +    sysbus_init_mmio(sbd, &s->dmem);
>  
>      hid_init(&s->hid_kbd, HID_KEYBOARD, softusb_kbd_hid_datain);
>      hid_init(&s->hid_mouse, HID_MOUSE, softusb_mouse_hid_datain);
> -
> -    return 0;
>  }
>  
>  static const VMStateDescription vmstate_milkymist_softusb = {
> @@ -296,9 +295,8 @@ static Property milkymist_softusb_properties[] = {
>  static void milkymist_softusb_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> -    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
>  
> -    k->init = milkymist_softusb_init;
> +    dc->realize = milkymist_softusb_realize;
>      dc->reset = milkymist_softusb_reset;
>      dc->vmsd = &vmstate_milkymist_softusb;
>      dc->props = milkymist_softusb_properties;
> 

[Qemu-devel] [PATCH v2 09/21] input/pl050: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
pl050_class_init().

Cc: peter.maydell@linaro.org
Cc: qemu-arm@nongnu.org

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
---
 hw/input/pl050.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/hw/input/pl050.c b/hw/input/pl050.c
index be9cd57b17..15bffbfcad 100644
--- a/hw/input/pl050.c
+++ b/hw/input/pl050.c
@@ -139,19 +139,19 @@ static const MemoryRegionOps pl050_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static int pl050_initfn(SysBusDevice *dev)
+static void pl050_realize(DeviceState *dev, Error **errp)
 {
     PL050State *s = PL050(dev);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
     memory_region_init_io(&s->iomem, OBJECT(s), &pl050_ops, s, "pl050", 0x1000);
-    sysbus_init_mmio(dev, &s->iomem);
-    sysbus_init_irq(dev, &s->irq);
+    sysbus_init_mmio(sbd, &s->iomem);
+    sysbus_init_irq(sbd, &s->irq);
     if (s->is_mouse) {
         s->dev = ps2_mouse_init(pl050_update, s);
     } else {
         s->dev = ps2_kbd_init(pl050_update, s);
     }
-    return 0;
 }
 
 static void pl050_keyboard_init(Object *obj)
@@ -183,9 +183,8 @@ static const TypeInfo pl050_mouse_info = {
 static void pl050_class_init(ObjectClass *oc, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(oc);
-    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(oc);
 
-    sdc->init = pl050_initfn;
+    dc->realize = pl050_realize;
     dc->vmsd = &vmstate_pl050;
 }
 
-- 
2.17.1

Re: [Qemu-devel] [PATCH v2 09/21] input/pl050: Convert sysbus init function to realize function

[Philippe Mathieu-Daudé]

On 23/11/18 16:30, Mao Zhongyi wrote:
> Use DeviceClass rather than SysBusDeviceClass in
> pl050_class_init().
> 
> Cc: peter.maydell@linaro.org
> Cc: qemu-arm@nongnu.org
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>  hw/input/pl050.c | 11 +++++------
>  1 file changed, 5 insertions(+), 6 deletions(-)
> 
> diff --git a/hw/input/pl050.c b/hw/input/pl050.c
> index be9cd57b17..15bffbfcad 100644
> --- a/hw/input/pl050.c
> +++ b/hw/input/pl050.c
> @@ -139,19 +139,19 @@ static const MemoryRegionOps pl050_ops = {
>      .endianness = DEVICE_NATIVE_ENDIAN,
>  };
>  
> -static int pl050_initfn(SysBusDevice *dev)
> +static void pl050_realize(DeviceState *dev, Error **errp)
>  {
>      PL050State *s = PL050(dev);
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>  
>      memory_region_init_io(&s->iomem, OBJECT(s), &pl050_ops, s, "pl050", 0x1000);
> -    sysbus_init_mmio(dev, &s->iomem);
> -    sysbus_init_irq(dev, &s->irq);
> +    sysbus_init_mmio(sbd, &s->iomem);
> +    sysbus_init_irq(sbd, &s->irq);
>      if (s->is_mouse) {
>          s->dev = ps2_mouse_init(pl050_update, s);
>      } else {
>          s->dev = ps2_kbd_init(pl050_update, s);
>      }
> -    return 0;
>  }
>  
>  static void pl050_keyboard_init(Object *obj)
> @@ -183,9 +183,8 @@ static const TypeInfo pl050_mouse_info = {
>  static void pl050_class_init(ObjectClass *oc, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(oc);
> -    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(oc);
>  
> -    sdc->init = pl050_initfn;
> +    dc->realize = pl050_realize;
>      dc->vmsd = &vmstate_pl050;
>  }
>  
> 

[Qemu-devel] [PATCH v2 10/21] intc/puv3_intc: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
puv3_intc_class_init().

Cc: gxt@mprc.pku.edu.cn

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
---
 hw/intc/puv3_intc.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/hw/intc/puv3_intc.c b/hw/intc/puv3_intc.c
index ef8488aacc..69ddc8c19a 100644
--- a/hw/intc/puv3_intc.c
+++ b/hw/intc/puv3_intc.c
@@ -101,10 +101,10 @@ static const MemoryRegionOps puv3_intc_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static int puv3_intc_init(SysBusDevice *sbd)
+static void puv3_intc_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
     PUV3INTCState *s = PUV3_INTC(dev);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
     qdev_init_gpio_in(dev, puv3_intc_handler, PUV3_IRQS_NR);
     sysbus_init_irq(sbd, &s->parent_irq);
@@ -115,15 +115,12 @@ static int puv3_intc_init(SysBusDevice *sbd)
     memory_region_init_io(&s->iomem, OBJECT(s), &puv3_intc_ops, s, "puv3_intc",
                           PUV3_REGS_OFFSET);
     sysbus_init_mmio(sbd, &s->iomem);
-
-    return 0;
 }
 
 static void puv3_intc_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
-
-    sdc->init = puv3_intc_init;
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    dc->realize = puv3_intc_realize;
 }
 
 static const TypeInfo puv3_intc_info = {
-- 
2.17.1

Re: [Qemu-devel] [PATCH v2 10/21] intc/puv3_intc: Convert sysbus init function to realize function

[Philippe Mathieu-Daudé]

On 23/11/18 16:30, Mao Zhongyi wrote:
> Use DeviceClass rather than SysBusDeviceClass in
> puv3_intc_class_init().
> 
> Cc: gxt@mprc.pku.edu.cn
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>  hw/intc/puv3_intc.c | 11 ++++-------
>  1 file changed, 4 insertions(+), 7 deletions(-)
> 
> diff --git a/hw/intc/puv3_intc.c b/hw/intc/puv3_intc.c
> index ef8488aacc..69ddc8c19a 100644
> --- a/hw/intc/puv3_intc.c
> +++ b/hw/intc/puv3_intc.c
> @@ -101,10 +101,10 @@ static const MemoryRegionOps puv3_intc_ops = {
>      .endianness = DEVICE_NATIVE_ENDIAN,
>  };
>  
> -static int puv3_intc_init(SysBusDevice *sbd)
> +static void puv3_intc_realize(DeviceState *dev, Error **errp)
>  {
> -    DeviceState *dev = DEVICE(sbd);
>      PUV3INTCState *s = PUV3_INTC(dev);
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>  
>      qdev_init_gpio_in(dev, puv3_intc_handler, PUV3_IRQS_NR);
>      sysbus_init_irq(sbd, &s->parent_irq);
> @@ -115,15 +115,12 @@ static int puv3_intc_init(SysBusDevice *sbd)
>      memory_region_init_io(&s->iomem, OBJECT(s), &puv3_intc_ops, s, "puv3_intc",
>                            PUV3_REGS_OFFSET);
>      sysbus_init_mmio(sbd, &s->iomem);
> -
> -    return 0;
>  }
>  
>  static void puv3_intc_class_init(ObjectClass *klass, void *data)
>  {
> -    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
> -
> -    sdc->init = puv3_intc_init;
> +    DeviceClass *dc = DEVICE_CLASS(klass);
> +    dc->realize = puv3_intc_realize;
>  }
>  
>  static const TypeInfo puv3_intc_info = {
> 

[Qemu-devel] [PATCH v2 11/21] milkymist-hpdmc: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
milkymist_hpdmc_class_init().

Cc: gxt@mprc.pku.edu.cn
Cc: michael@walle.cc

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/misc/milkymist-hpdmc.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/hw/misc/milkymist-hpdmc.c b/hw/misc/milkymist-hpdmc.c
index e6140eec6b..44dc0698ec 100644
--- a/hw/misc/milkymist-hpdmc.c
+++ b/hw/misc/milkymist-hpdmc.c
@@ -129,15 +129,13 @@ static void milkymist_hpdmc_reset(DeviceState *d)
                          | IODELAY_PLL2_LOCKED;
 }
 
-static int milkymist_hpdmc_init(SysBusDevice *dev)
+static void milkymist_hpdmc_realize(DeviceState *dev, Error **errp)
 {
     MilkymistHpdmcState *s = MILKYMIST_HPDMC(dev);
 
     memory_region_init_io(&s->regs_region, OBJECT(dev), &hpdmc_mmio_ops, s,
             "milkymist-hpdmc", R_MAX * 4);
-    sysbus_init_mmio(dev, &s->regs_region);
-
-    return 0;
+    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->regs_region);
 }
 
 static const VMStateDescription vmstate_milkymist_hpdmc = {
@@ -153,9 +151,8 @@ static const VMStateDescription vmstate_milkymist_hpdmc = {
 static void milkymist_hpdmc_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = milkymist_hpdmc_init;
+    dc->realize = milkymist_hpdmc_realize;
     dc->reset = milkymist_hpdmc_reset;
     dc->vmsd = &vmstate_milkymist_hpdmc;
 }
-- 
2.17.1

[Qemu-devel] [PATCH v2 12/21] milkymist-pfpu: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
milkymist_pfpu_class_init().

Cc: michael@walle.cc

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
---
 hw/misc/milkymist-pfpu.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/hw/misc/milkymist-pfpu.c b/hw/misc/milkymist-pfpu.c
index 86f5e383b0..4a03c7ee63 100644
--- a/hw/misc/milkymist-pfpu.c
+++ b/hw/misc/milkymist-pfpu.c
@@ -497,17 +497,16 @@ static void milkymist_pfpu_reset(DeviceState *d)
     }
 }
 
-static int milkymist_pfpu_init(SysBusDevice *dev)
+static void milkymist_pfpu_realize(DeviceState *dev, Error **errp)
 {
     MilkymistPFPUState *s = MILKYMIST_PFPU(dev);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
-    sysbus_init_irq(dev, &s->irq);
+    sysbus_init_irq(sbd, &s->irq);
 
     memory_region_init_io(&s->regs_region, OBJECT(dev), &pfpu_mmio_ops, s,
             "milkymist-pfpu", MICROCODE_END * 4);
-    sysbus_init_mmio(dev, &s->regs_region);
-
-    return 0;
+    sysbus_init_mmio(sbd, &s->regs_region);
 }
 
 static const VMStateDescription vmstate_milkymist_pfpu = {
@@ -527,9 +526,8 @@ static const VMStateDescription vmstate_milkymist_pfpu = {
 static void milkymist_pfpu_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = milkymist_pfpu_init;
+    dc->realize = milkymist_pfpu_realize;
     dc->reset = milkymist_pfpu_reset;
     dc->vmsd = &vmstate_milkymist_pfpu;
 }
-- 
2.17.1

Re: [Qemu-devel] [PATCH v2 12/21] milkymist-pfpu: Convert sysbus init function to realize function

[Philippe Mathieu-Daudé]

On 23/11/18 16:30, Mao Zhongyi wrote:
> Use DeviceClass rather than SysBusDeviceClass in
> milkymist_pfpu_class_init().
> 
> Cc: michael@walle.cc
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>  hw/misc/milkymist-pfpu.c | 12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)
> 
> diff --git a/hw/misc/milkymist-pfpu.c b/hw/misc/milkymist-pfpu.c
> index 86f5e383b0..4a03c7ee63 100644
> --- a/hw/misc/milkymist-pfpu.c
> +++ b/hw/misc/milkymist-pfpu.c
> @@ -497,17 +497,16 @@ static void milkymist_pfpu_reset(DeviceState *d)
>      }
>  }
>  
> -static int milkymist_pfpu_init(SysBusDevice *dev)
> +static void milkymist_pfpu_realize(DeviceState *dev, Error **errp)
>  {
>      MilkymistPFPUState *s = MILKYMIST_PFPU(dev);
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>  
> -    sysbus_init_irq(dev, &s->irq);
> +    sysbus_init_irq(sbd, &s->irq);
>  
>      memory_region_init_io(&s->regs_region, OBJECT(dev), &pfpu_mmio_ops, s,
>              "milkymist-pfpu", MICROCODE_END * 4);
> -    sysbus_init_mmio(dev, &s->regs_region);
> -
> -    return 0;
> +    sysbus_init_mmio(sbd, &s->regs_region);
>  }
>  
>  static const VMStateDescription vmstate_milkymist_pfpu = {
> @@ -527,9 +526,8 @@ static const VMStateDescription vmstate_milkymist_pfpu = {
>  static void milkymist_pfpu_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> -    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
>  
> -    k->init = milkymist_pfpu_init;
> +    dc->realize = milkymist_pfpu_realize;
>      dc->reset = milkymist_pfpu_reset;
>      dc->vmsd = &vmstate_milkymist_pfpu;
>  }
> 

[Qemu-devel] [PATCH v2 13/21] puv3_pm.c: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
puv3_pm_class_init().

Cc: gxt@mprc.pku.edu.cn

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/misc/puv3_pm.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/hw/misc/puv3_pm.c b/hw/misc/puv3_pm.c
index 577cebaac7..afe191fbe1 100644
--- a/hw/misc/puv3_pm.c
+++ b/hw/misc/puv3_pm.c
@@ -119,7 +119,7 @@ static const MemoryRegionOps puv3_pm_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static int puv3_pm_init(SysBusDevice *dev)
+static void puv3_pm_realize(DeviceState *dev, Error **errp)
 {
     PUV3PMState *s = PUV3_PM(dev);
 
@@ -127,16 +127,14 @@ static int puv3_pm_init(SysBusDevice *dev)
 
     memory_region_init_io(&s->iomem, OBJECT(s), &puv3_pm_ops, s, "puv3_pm",
             PUV3_REGS_OFFSET);
-    sysbus_init_mmio(dev, &s->iomem);
-
-    return 0;
+    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->iomem);
 }
 
 static void puv3_pm_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
 
-    sdc->init = puv3_pm_init;
+    dc->realize = puv3_pm_realize;
 }
 
 static const TypeInfo puv3_pm_info = {
-- 
2.17.1

[Qemu-devel] [PATCH v2 14/21] nvram/ds1225y: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
nvram_sysbus_class_init().

Cc: pbonzini@redhat.com
Cc: marcandre.lureau@redhat.com

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/nvram/ds1225y.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/hw/nvram/ds1225y.c b/hw/nvram/ds1225y.c
index ad7345f288..b6ef463db0 100644
--- a/hw/nvram/ds1225y.c
+++ b/hw/nvram/ds1225y.c
@@ -25,6 +25,7 @@
 #include "qemu/osdep.h"
 #include "hw/sysbus.h"
 #include "trace.h"
+#include "qemu/error-report.h"
 
 typedef struct {
     MemoryRegion iomem;
@@ -113,7 +114,7 @@ typedef struct {
     NvRamState nvram;
 } SysBusNvRamState;
 
-static int nvram_sysbus_initfn(SysBusDevice *dev)
+static void nvram_sysbus_realize(DeviceState *dev, Error **errp)
 {
     SysBusNvRamState *sys = DS1225Y(dev);
     NvRamState *s = &sys->nvram;
@@ -123,20 +124,18 @@ static int nvram_sysbus_initfn(SysBusDevice *dev)
 
     memory_region_init_io(&s->iomem, OBJECT(s), &nvram_ops, s,
                           "nvram", s->chip_size);
-    sysbus_init_mmio(dev, &s->iomem);
+    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->iomem);
 
     /* Read current file */
     file = s->filename ? fopen(s->filename, "rb") : NULL;
     if (file) {
         /* Read nvram contents */
         if (fread(s->contents, s->chip_size, 1, file) != 1) {
-            printf("nvram_sysbus_initfn: short read\n");
+            error_report("nvram_sysbus_realize: short read");
         }
         fclose(file);
     }
     nvram_post_load(s, 0);
-
-    return 0;
 }
 
 static Property nvram_sysbus_properties[] = {
@@ -148,9 +147,8 @@ static Property nvram_sysbus_properties[] = {
 static void nvram_sysbus_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = nvram_sysbus_initfn;
+    dc->realize = nvram_sysbus_realize;
     dc->vmsd = &vmstate_nvram;
     dc->props = nvram_sysbus_properties;
 }
-- 
2.17.1

[Qemu-devel] [PATCH v2 15/21] pci-bridge/dec: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
pci_dec_21154_device_class_init().

Cc: david@gibson.dropbear.id.au
Cc: mst@redhat.com
Cc: marcel.apfelbaum@gmail.com
Cc: qemu-ppc@nongnu.org

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
---
 hw/pci-bridge/dec.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/hw/pci-bridge/dec.c b/hw/pci-bridge/dec.c
index 84492d5e5f..5b21c20e50 100644
--- a/hw/pci-bridge/dec.c
+++ b/hw/pci-bridge/dec.c
@@ -98,7 +98,7 @@ PCIBus *pci_dec_21154_init(PCIBus *parent_bus, int devfn)
     return pci_bridge_get_sec_bus(br);
 }
 
-static int pci_dec_21154_device_init(SysBusDevice *dev)
+static void pci_dec_21154_device_realize(DeviceState *dev, Error **errp)
 {
     PCIHostState *phb;
 
@@ -108,9 +108,8 @@ static int pci_dec_21154_device_init(SysBusDevice *dev)
                           dev, "pci-conf-idx", 0x1000);
     memory_region_init_io(&phb->data_mem, OBJECT(dev), &pci_host_data_le_ops,
                           dev, "pci-data-idx", 0x1000);
-    sysbus_init_mmio(dev, &phb->conf_mem);
-    sysbus_init_mmio(dev, &phb->data_mem);
-    return 0;
+    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &phb->conf_mem);
+    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &phb->data_mem);
 }
 
 static void dec_21154_pci_host_realize(PCIDevice *d, Error **errp)
@@ -150,9 +149,9 @@ static const TypeInfo dec_21154_pci_host_info = {
 
 static void pci_dec_21154_device_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
 
-    sdc->init = pci_dec_21154_device_init;
+    dc->realize = pci_dec_21154_device_realize;
 }
 
 static const TypeInfo pci_dec_21154_device_info = {
-- 
2.17.1

Re: [Qemu-devel] [PATCH v2 15/21] pci-bridge/dec: Convert sysbus init function to realize function

[Philippe Mathieu-Daudé]

Hi Mao,

On 23/11/18 16:30, Mao Zhongyi wrote:
> Use DeviceClass rather than SysBusDeviceClass in
> pci_dec_21154_device_class_init().
> 
> Cc: david@gibson.dropbear.id.au
> Cc: mst@redhat.com
> Cc: marcel.apfelbaum@gmail.com
> Cc: qemu-ppc@nongnu.org
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> Acked-by: David Gibson <david@gibson.dropbear.id.au>
> ---
>  hw/pci-bridge/dec.c | 11 +++++------
>  1 file changed, 5 insertions(+), 6 deletions(-)
> 
> diff --git a/hw/pci-bridge/dec.c b/hw/pci-bridge/dec.c
> index 84492d5e5f..5b21c20e50 100644
> --- a/hw/pci-bridge/dec.c
> +++ b/hw/pci-bridge/dec.c
> @@ -98,7 +98,7 @@ PCIBus *pci_dec_21154_init(PCIBus *parent_bus, int devfn)
>      return pci_bridge_get_sec_bus(br);
>  }
>  
> -static int pci_dec_21154_device_init(SysBusDevice *dev)
> +static void pci_dec_21154_device_realize(DeviceState *dev, Error **errp)
>  {
>      PCIHostState *phb;

Why don't you use:

       SysBusDevice *sbd = SYS_BUS_DEVICE(dev);

like in all the other patches from this series...?

>  
> @@ -108,9 +108,8 @@ static int pci_dec_21154_device_init(SysBusDevice *dev)
>                            dev, "pci-conf-idx", 0x1000);
>      memory_region_init_io(&phb->data_mem, OBJECT(dev), &pci_host_data_le_ops,
>                            dev, "pci-data-idx", 0x1000);
> -    sysbus_init_mmio(dev, &phb->conf_mem);
> -    sysbus_init_mmio(dev, &phb->data_mem);
> -    return 0;
> +    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &phb->conf_mem);
> +    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &phb->data_mem);

... this would save extra type checking here, as explain by Peter:
https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg03644.html

>  }
>  
>  static void dec_21154_pci_host_realize(PCIDevice *d, Error **errp)
> @@ -150,9 +149,9 @@ static const TypeInfo dec_21154_pci_host_info = {
>  
>  static void pci_dec_21154_device_class_init(ObjectClass *klass, void *data)
>  {
> -    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
> +    DeviceClass *dc = DEVICE_CLASS(klass);
>  
> -    sdc->init = pci_dec_21154_device_init;
> +    dc->realize = pci_dec_21154_device_realize;
>  }
>  
>  static const TypeInfo pci_dec_21154_device_info = {
> 

Re: [Qemu-devel] [PATCH v2 15/21] pci-bridge/dec: Convert sysbus initfunction to realize function

[maozy]

Hi, Philippe

On 11/24/18 12:37 AM, Philippe Mathieu-Daudé wrote:
> Hi Mao,
> 
> On 23/11/18 16:30, Mao Zhongyi wrote:
>> Use DeviceClass rather than SysBusDeviceClass in
>> pci_dec_21154_device_class_init().
>>
>> Cc: david@gibson.dropbear.id.au
>> Cc: mst@redhat.com
>> Cc: marcel.apfelbaum@gmail.com
>> Cc: qemu-ppc@nongnu.org
>>
>> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
>> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
>> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
>> Acked-by: David Gibson <david@gibson.dropbear.id.au>
>> ---
>>   hw/pci-bridge/dec.c | 11 +++++------
>>   1 file changed, 5 insertions(+), 6 deletions(-)
>>
>> diff --git a/hw/pci-bridge/dec.c b/hw/pci-bridge/dec.c
>> index 84492d5e5f..5b21c20e50 100644
>> --- a/hw/pci-bridge/dec.c
>> +++ b/hw/pci-bridge/dec.c
>> @@ -98,7 +98,7 @@ PCIBus *pci_dec_21154_init(PCIBus *parent_bus, int devfn)
>>       return pci_bridge_get_sec_bus(br);
>>   }
>>   
>> -static int pci_dec_21154_device_init(SysBusDevice *dev)
>> +static void pci_dec_21154_device_realize(DeviceState *dev, Error **errp)
>>   {
>>       PCIHostState *phb;
> 
> Why don't you use:
> 
>         SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
> 
> like in all the other patches from this series...?

Oops, sorry, I missed this one, will fix it in v3.

Thanks,
Mao

> 
>>   
>> @@ -108,9 +108,8 @@ static int pci_dec_21154_device_init(SysBusDevice *dev)
>>                             dev, "pci-conf-idx", 0x1000);
>>       memory_region_init_io(&phb->data_mem, OBJECT(dev), &pci_host_data_le_ops,
>>                             dev, "pci-data-idx", 0x1000);
>> -    sysbus_init_mmio(dev, &phb->conf_mem);
>> -    sysbus_init_mmio(dev, &phb->data_mem);
>> -    return 0;
>> +    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &phb->conf_mem);
>> +    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &phb->data_mem);
> 
> ... this would save extra type checking here, as explain by Peter:
> https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg03644.html
> 
>>   }
>>   
>>   static void dec_21154_pci_host_realize(PCIDevice *d, Error **errp)
>> @@ -150,9 +149,9 @@ static const TypeInfo dec_21154_pci_host_info = {
>>   
>>   static void pci_dec_21154_device_class_init(ObjectClass *klass, void *data)
>>   {
>> -    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
>> +    DeviceClass *dc = DEVICE_CLASS(klass);
>>   
>> -    sdc->init = pci_dec_21154_device_init;
>> +    dc->realize = pci_dec_21154_device_realize;
>>   }
>>   
>>   static const TypeInfo pci_dec_21154_device_info = {
>>
> 

[Qemu-devel] [PATCH v2 16/21] timer/etraxfs_timer: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
etraxfs_timer_class_init().

Cc: edgar.iglesias@gmail.com

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
---
 hw/timer/etraxfs_timer.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/hw/timer/etraxfs_timer.c b/hw/timer/etraxfs_timer.c
index d13bc30b2d..2280914b1d 100644
--- a/hw/timer/etraxfs_timer.c
+++ b/hw/timer/etraxfs_timer.c
@@ -315,9 +315,10 @@ static void etraxfs_timer_reset(void *opaque)
     qemu_irq_lower(t->irq);
 }
 
-static int etraxfs_timer_init(SysBusDevice *dev)
+static void etraxfs_timer_realize(DeviceState *dev, Error **errp)
 {
     ETRAXTimerState *t = ETRAX_TIMER(dev);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
     t->bh_t0 = qemu_bh_new(timer0_hit, t);
     t->bh_t1 = qemu_bh_new(timer1_hit, t);
@@ -326,21 +327,20 @@ static int etraxfs_timer_init(SysBusDevice *dev)
     t->ptimer_t1 = ptimer_init(t->bh_t1, PTIMER_POLICY_DEFAULT);
     t->ptimer_wd = ptimer_init(t->bh_wd, PTIMER_POLICY_DEFAULT);
 
-    sysbus_init_irq(dev, &t->irq);
-    sysbus_init_irq(dev, &t->nmi);
+    sysbus_init_irq(sbd, &t->irq);
+    sysbus_init_irq(sbd, &t->nmi);
 
     memory_region_init_io(&t->mmio, OBJECT(t), &timer_ops, t,
                           "etraxfs-timer", 0x5c);
-    sysbus_init_mmio(dev, &t->mmio);
+    sysbus_init_mmio(sbd, &t->mmio);
     qemu_register_reset(etraxfs_timer_reset, t);
-    return 0;
 }
 
 static void etraxfs_timer_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
 
-    sdc->init = etraxfs_timer_init;
+    dc->realize = etraxfs_timer_realize;
 }
 
 static const TypeInfo etraxfs_timer_info = {
-- 
2.17.1

Re: [Qemu-devel] [PATCH v2 16/21] timer/etraxfs_timer: Convert sysbus init function to realize function

[Philippe Mathieu-Daudé]

On 23/11/18 16:30, Mao Zhongyi wrote:
> Use DeviceClass rather than SysBusDeviceClass in
> etraxfs_timer_class_init().
> 
> Cc: edgar.iglesias@gmail.com
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>  hw/timer/etraxfs_timer.c | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/hw/timer/etraxfs_timer.c b/hw/timer/etraxfs_timer.c
> index d13bc30b2d..2280914b1d 100644
> --- a/hw/timer/etraxfs_timer.c
> +++ b/hw/timer/etraxfs_timer.c
> @@ -315,9 +315,10 @@ static void etraxfs_timer_reset(void *opaque)
>      qemu_irq_lower(t->irq);
>  }
>  
> -static int etraxfs_timer_init(SysBusDevice *dev)
> +static void etraxfs_timer_realize(DeviceState *dev, Error **errp)
>  {
>      ETRAXTimerState *t = ETRAX_TIMER(dev);
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>  
>      t->bh_t0 = qemu_bh_new(timer0_hit, t);
>      t->bh_t1 = qemu_bh_new(timer1_hit, t);
> @@ -326,21 +327,20 @@ static int etraxfs_timer_init(SysBusDevice *dev)
>      t->ptimer_t1 = ptimer_init(t->bh_t1, PTIMER_POLICY_DEFAULT);
>      t->ptimer_wd = ptimer_init(t->bh_wd, PTIMER_POLICY_DEFAULT);
>  
> -    sysbus_init_irq(dev, &t->irq);
> -    sysbus_init_irq(dev, &t->nmi);
> +    sysbus_init_irq(sbd, &t->irq);
> +    sysbus_init_irq(sbd, &t->nmi);
>  
>      memory_region_init_io(&t->mmio, OBJECT(t), &timer_ops, t,
>                            "etraxfs-timer", 0x5c);
> -    sysbus_init_mmio(dev, &t->mmio);
> +    sysbus_init_mmio(sbd, &t->mmio);
>      qemu_register_reset(etraxfs_timer_reset, t);
> -    return 0;
>  }
>  
>  static void etraxfs_timer_class_init(ObjectClass *klass, void *data)
>  {
> -    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
> +    DeviceClass *dc = DEVICE_CLASS(klass);
>  
> -    sdc->init = etraxfs_timer_init;
> +    dc->realize = etraxfs_timer_realize;
>  }
>  
>  static const TypeInfo etraxfs_timer_info = {
> 

Re: [Qemu-devel] [PATCH v2 16/21] timer/etraxfs_timer: Convert sysbus init function to realize function

[Edgar E. Iglesias]

On Fri, Nov 23, 2018 at 11:30:35PM +0800, Mao Zhongyi wrote:
> Use DeviceClass rather than SysBusDeviceClass in
> etraxfs_timer_class_init().
> 
> Cc: edgar.iglesias@gmail.com
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>


Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>


> ---
>  hw/timer/etraxfs_timer.c | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/hw/timer/etraxfs_timer.c b/hw/timer/etraxfs_timer.c
> index d13bc30b2d..2280914b1d 100644
> --- a/hw/timer/etraxfs_timer.c
> +++ b/hw/timer/etraxfs_timer.c
> @@ -315,9 +315,10 @@ static void etraxfs_timer_reset(void *opaque)
>      qemu_irq_lower(t->irq);
>  }
>  
> -static int etraxfs_timer_init(SysBusDevice *dev)
> +static void etraxfs_timer_realize(DeviceState *dev, Error **errp)
>  {
>      ETRAXTimerState *t = ETRAX_TIMER(dev);
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>  
>      t->bh_t0 = qemu_bh_new(timer0_hit, t);
>      t->bh_t1 = qemu_bh_new(timer1_hit, t);
> @@ -326,21 +327,20 @@ static int etraxfs_timer_init(SysBusDevice *dev)
>      t->ptimer_t1 = ptimer_init(t->bh_t1, PTIMER_POLICY_DEFAULT);
>      t->ptimer_wd = ptimer_init(t->bh_wd, PTIMER_POLICY_DEFAULT);
>  
> -    sysbus_init_irq(dev, &t->irq);
> -    sysbus_init_irq(dev, &t->nmi);
> +    sysbus_init_irq(sbd, &t->irq);
> +    sysbus_init_irq(sbd, &t->nmi);
>  
>      memory_region_init_io(&t->mmio, OBJECT(t), &timer_ops, t,
>                            "etraxfs-timer", 0x5c);
> -    sysbus_init_mmio(dev, &t->mmio);
> +    sysbus_init_mmio(sbd, &t->mmio);
>      qemu_register_reset(etraxfs_timer_reset, t);
> -    return 0;
>  }
>  
>  static void etraxfs_timer_class_init(ObjectClass *klass, void *data)
>  {
> -    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
> +    DeviceClass *dc = DEVICE_CLASS(klass);
>  
> -    sdc->init = etraxfs_timer_init;
> +    dc->realize = etraxfs_timer_realize;
>  }
>  
>  static const TypeInfo etraxfs_timer_info = {
> -- 
> 2.17.1
> 
> 
> 

[Qemu-devel] [PATCH v2 17/21] timer/grlib_gptimer: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
grlib_gptimer_class_init().

Cc: chouteau@adacore.com

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
---
 hw/timer/grlib_gptimer.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/hw/timer/grlib_gptimer.c b/hw/timer/grlib_gptimer.c
index 4ed96e970a..183eddc073 100644
--- a/hw/timer/grlib_gptimer.c
+++ b/hw/timer/grlib_gptimer.c
@@ -347,10 +347,11 @@ static void grlib_gptimer_reset(DeviceState *d)
     }
 }
 
-static int grlib_gptimer_init(SysBusDevice *dev)
+static void grlib_gptimer_realize(DeviceState *dev, Error **errp)
 {
     GPTimerUnit  *unit = GRLIB_GPTIMER(dev);
     unsigned int  i;
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
     assert(unit->nr_timers > 0);
     assert(unit->nr_timers <= GPTIMER_MAX_TIMERS);
@@ -366,7 +367,7 @@ static int grlib_gptimer_init(SysBusDevice *dev)
         timer->id     = i;
 
         /* One IRQ line for each timer */
-        sysbus_init_irq(dev, &timer->irq);
+        sysbus_init_irq(sbd, &timer->irq);
 
         ptimer_set_freq(timer->ptimer, unit->freq_hz);
     }
@@ -375,8 +376,7 @@ static int grlib_gptimer_init(SysBusDevice *dev)
                           unit, "gptimer",
                           UNIT_REG_SIZE + GPTIMER_REG_SIZE * unit->nr_timers);
 
-    sysbus_init_mmio(dev, &unit->iomem);
-    return 0;
+    sysbus_init_mmio(sbd, &unit->iomem);
 }
 
 static Property grlib_gptimer_properties[] = {
@@ -389,9 +389,8 @@ static Property grlib_gptimer_properties[] = {
 static void grlib_gptimer_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = grlib_gptimer_init;
+    dc->realize = grlib_gptimer_realize;
     dc->reset = grlib_gptimer_reset;
     dc->props = grlib_gptimer_properties;
 }
-- 
2.17.1

Re: [Qemu-devel] [PATCH v2 17/21] timer/grlib_gptimer: Convert sysbus init function to realize function

[Philippe Mathieu-Daudé]

On 23/11/18 16:30, Mao Zhongyi wrote:
> Use DeviceClass rather than SysBusDeviceClass in
> grlib_gptimer_class_init().
> 
> Cc: chouteau@adacore.com
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>  hw/timer/grlib_gptimer.c | 11 +++++------
>  1 file changed, 5 insertions(+), 6 deletions(-)
> 
> diff --git a/hw/timer/grlib_gptimer.c b/hw/timer/grlib_gptimer.c
> index 4ed96e970a..183eddc073 100644
> --- a/hw/timer/grlib_gptimer.c
> +++ b/hw/timer/grlib_gptimer.c
> @@ -347,10 +347,11 @@ static void grlib_gptimer_reset(DeviceState *d)
>      }
>  }
>  
> -static int grlib_gptimer_init(SysBusDevice *dev)
> +static void grlib_gptimer_realize(DeviceState *dev, Error **errp)
>  {
>      GPTimerUnit  *unit = GRLIB_GPTIMER(dev);
>      unsigned int  i;
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>  
>      assert(unit->nr_timers > 0);
>      assert(unit->nr_timers <= GPTIMER_MAX_TIMERS);
> @@ -366,7 +367,7 @@ static int grlib_gptimer_init(SysBusDevice *dev)
>          timer->id     = i;
>  
>          /* One IRQ line for each timer */
> -        sysbus_init_irq(dev, &timer->irq);
> +        sysbus_init_irq(sbd, &timer->irq);
>  
>          ptimer_set_freq(timer->ptimer, unit->freq_hz);
>      }
> @@ -375,8 +376,7 @@ static int grlib_gptimer_init(SysBusDevice *dev)
>                            unit, "gptimer",
>                            UNIT_REG_SIZE + GPTIMER_REG_SIZE * unit->nr_timers);
>  
> -    sysbus_init_mmio(dev, &unit->iomem);
> -    return 0;
> +    sysbus_init_mmio(sbd, &unit->iomem);
>  }
>  
>  static Property grlib_gptimer_properties[] = {
> @@ -389,9 +389,8 @@ static Property grlib_gptimer_properties[] = {
>  static void grlib_gptimer_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> -    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
>  
> -    k->init = grlib_gptimer_init;
> +    dc->realize = grlib_gptimer_realize;
>      dc->reset = grlib_gptimer_reset;
>      dc->props = grlib_gptimer_properties;
>  }
> 

[Qemu-devel] [PATCH v2 18/21] timer/puv3_ost: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
puv3_ost_class_init().

Cc: gxt@mprc.pku.edu.cn

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
---
 hw/timer/puv3_ost.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/hw/timer/puv3_ost.c b/hw/timer/puv3_ost.c
index 0b3d717e60..3be58c7fdd 100644
--- a/hw/timer/puv3_ost.c
+++ b/hw/timer/puv3_ost.c
@@ -113,16 +113,17 @@ static void puv3_ost_tick(void *opaque)
     }
 }
 
-static int puv3_ost_init(SysBusDevice *dev)
+static void puv3_ost_realize(DeviceState *dev, Error **errp)
 {
     PUV3OSTState *s = PUV3_OST(dev);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
     s->reg_OIER = 0;
     s->reg_OSSR = 0;
     s->reg_OSMR0 = 0;
     s->reg_OSCR = 0;
 
-    sysbus_init_irq(dev, &s->irq);
+    sysbus_init_irq(sbd, &s->irq);
 
     s->bh = qemu_bh_new(puv3_ost_tick, s);
     s->ptimer = ptimer_init(s->bh, PTIMER_POLICY_DEFAULT);
@@ -130,16 +131,14 @@ static int puv3_ost_init(SysBusDevice *dev)
 
     memory_region_init_io(&s->iomem, OBJECT(s), &puv3_ost_ops, s, "puv3_ost",
             PUV3_REGS_OFFSET);
-    sysbus_init_mmio(dev, &s->iomem);
-
-    return 0;
+    sysbus_init_mmio(sbd, &s->iomem);
 }
 
 static void puv3_ost_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
 
-    sdc->init = puv3_ost_init;
+    dc->realize = puv3_ost_realize;
 }
 
 static const TypeInfo puv3_ost_info = {
-- 
2.17.1

Re: [Qemu-devel] [PATCH v2 18/21] timer/puv3_ost: Convert sysbus init function to realize function

[Philippe Mathieu-Daudé]

On 23/11/18 16:30, Mao Zhongyi wrote:
> Use DeviceClass rather than SysBusDeviceClass in
> puv3_ost_class_init().
> 
> Cc: gxt@mprc.pku.edu.cn
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>  hw/timer/puv3_ost.c | 13 ++++++-------
>  1 file changed, 6 insertions(+), 7 deletions(-)
> 
> diff --git a/hw/timer/puv3_ost.c b/hw/timer/puv3_ost.c
> index 0b3d717e60..3be58c7fdd 100644
> --- a/hw/timer/puv3_ost.c
> +++ b/hw/timer/puv3_ost.c
> @@ -113,16 +113,17 @@ static void puv3_ost_tick(void *opaque)
>      }
>  }
>  
> -static int puv3_ost_init(SysBusDevice *dev)
> +static void puv3_ost_realize(DeviceState *dev, Error **errp)
>  {
>      PUV3OSTState *s = PUV3_OST(dev);
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>  
>      s->reg_OIER = 0;
>      s->reg_OSSR = 0;
>      s->reg_OSMR0 = 0;
>      s->reg_OSCR = 0;
>  
> -    sysbus_init_irq(dev, &s->irq);
> +    sysbus_init_irq(sbd, &s->irq);
>  
>      s->bh = qemu_bh_new(puv3_ost_tick, s);
>      s->ptimer = ptimer_init(s->bh, PTIMER_POLICY_DEFAULT);
> @@ -130,16 +131,14 @@ static int puv3_ost_init(SysBusDevice *dev)
>  
>      memory_region_init_io(&s->iomem, OBJECT(s), &puv3_ost_ops, s, "puv3_ost",
>              PUV3_REGS_OFFSET);
> -    sysbus_init_mmio(dev, &s->iomem);
> -
> -    return 0;
> +    sysbus_init_mmio(sbd, &s->iomem);
>  }
>  
>  static void puv3_ost_class_init(ObjectClass *klass, void *data)
>  {
> -    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
> +    DeviceClass *dc = DEVICE_CLASS(klass);
>  
> -    sdc->init = puv3_ost_init;
> +    dc->realize = puv3_ost_realize;
>  }
>  
>  static const TypeInfo puv3_ost_info = {
> 

[Qemu-devel] [PATCH v2 19/21] usb/tusb6010: Convert sysbus init function to realize function

[Mao Zhongyi]

Use DeviceClass rather than SysBusDeviceClass in
tusb6010_class_init().

Cc: kraxel@redhat.com

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
---
 hw/usb/tusb6010.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/hw/usb/tusb6010.c b/hw/usb/tusb6010.c
index a2128024c1..501706e2b2 100644
--- a/hw/usb/tusb6010.c
+++ b/hw/usb/tusb6010.c
@@ -808,10 +808,10 @@ static void tusb6010_reset(DeviceState *dev)
     musb_reset(s->musb);
 }
 
-static int tusb6010_init(SysBusDevice *sbd)
+static void tusb6010_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
     TUSBState *s = TUSB(dev);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
     s->otg_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, tusb_otg_tick, s);
     s->pwr_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, tusb_power_tick, s);
@@ -822,15 +822,13 @@ static int tusb6010_init(SysBusDevice *sbd)
     sysbus_init_irq(sbd, &s->irq);
     qdev_init_gpio_in(dev, tusb6010_irq, musb_irq_max + 1);
     s->musb = musb_init(dev, 1);
-    return 0;
 }
 
 static void tusb6010_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = tusb6010_init;
+    dc->realize = tusb6010_realize;
     dc->reset = tusb6010_reset;
 }
 
-- 
2.17.1

[Qemu-devel] [PATCH v2 20/21] xen_backend: remove xen_sysdev_init() function

[Mao Zhongyi]

The init function doesn't do anything at all, so we
just omit it.

Cc: sstabellini@kernel.org
Cc: anthony.perard@citrix.com
Cc: xen-devel@lists.xenproject.org
Cc: peter.maydell@linaro.org

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
---
 hw/xen/xen_backend.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/hw/xen/xen_backend.c b/hw/xen/xen_backend.c
index 9a8e8771ec..0bc6b1de60 100644
--- a/hw/xen/xen_backend.c
+++ b/hw/xen/xen_backend.c
@@ -809,11 +809,6 @@ static const TypeInfo xensysbus_info = {
     }
 };
 
-static int xen_sysdev_init(SysBusDevice *dev)
-{
-    return 0;
-}
-
 static Property xen_sysdev_properties[] = {
     {/* end of property list */},
 };
@@ -821,9 +816,7 @@ static Property xen_sysdev_properties[] = {
 static void xen_sysdev_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = xen_sysdev_init;
     dc->props = xen_sysdev_properties;
     dc->bus_type = TYPE_XENSYSBUS;
 }
-- 
2.17.1

Re: [Qemu-devel] [PATCH v2 20/21] xen_backend: remove xen_sysdev_init() function

[Anthony PERARD]

On Fri, Nov 23, 2018 at 11:30:39PM +0800, Mao Zhongyi wrote:
> The init function doesn't do anything at all, so we
> just omit it.
> 
> Cc: sstabellini@kernel.org
> Cc: anthony.perard@citrix.com
> Cc: xen-devel@lists.xenproject.org
> Cc: peter.maydell@linaro.org
> 
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Acked-by: Anthony PERARD <anthony.perard@citrix.com>

Thanks,

-- 
Anthony PERARD

[Qemu-devel] [PATCH v2 21/21] core/sysbus: remove the SysBusDeviceClass::init path

[Mao Zhongyi]

Currently, all sysbus devices have been converted to realize(),
so remove this path.

Cc: ehabkost@redhat.com
Cc: thuth@redhat.com
Cc: pbonzini@redhat.com
Cc: armbru@redhat.com
Cc: peter.maydell@linaro.org
Cc: richard.henderson@linaro.org
Cc: alistair.francis@wdc.com

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
---
 hw/core/sysbus.c    | 15 +++++----------
 include/hw/sysbus.h |  3 ---
 2 files changed, 5 insertions(+), 13 deletions(-)

diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c
index 7ac36ad3e7..9f9edbcab9 100644
--- a/hw/core/sysbus.c
+++ b/hw/core/sysbus.c
@@ -201,18 +201,13 @@ void sysbus_init_ioports(SysBusDevice *dev, uint32_t ioport, uint32_t size)
     }
 }
 
-/* TODO remove once all sysbus devices have been converted to realize */
+/* The purpose of preserving this empty realize function
+ * is to prevent the parent_realize field of some subclasses
+ * from being set to NULL to break the normal init/realize
+ * of some devices.
+ */
 static void sysbus_realize(DeviceState *dev, Error **errp)
 {
-    SysBusDevice *sd = SYS_BUS_DEVICE(dev);
-    SysBusDeviceClass *sbc = SYS_BUS_DEVICE_GET_CLASS(sd);
-
-    if (!sbc->init) {
-        return;
-    }
-    if (sbc->init(sd) < 0) {
-        error_setg(errp, "Device initialization failed");
-    }
 }
 
 DeviceState *sysbus_create_varargs(const char *name,
diff --git a/include/hw/sysbus.h b/include/hw/sysbus.h
index 0b59a3b8d6..1aedcf05c9 100644
--- a/include/hw/sysbus.h
+++ b/include/hw/sysbus.h
@@ -38,9 +38,6 @@ typedef struct SysBusDevice SysBusDevice;
 typedef struct SysBusDeviceClass {
     /*< private >*/
     DeviceClass parent_class;
-    /*< public >*/
-
-    int (*init)(SysBusDevice *dev);
 
     /*
      * Let the sysbus device format its own non-PIO, non-MMIO unit address.
-- 
2.17.1