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Re: [PATCH 45/55] sysbus: Convert qdev_set_parent_bus() use with Coccine


From: Alistair Francis
Subject: Re: [PATCH 45/55] sysbus: Convert qdev_set_parent_bus() use with Coccinelle, part 1
Date: Tue, 19 May 2020 14:25:44 -0700

On Tue, May 19, 2020 at 8:22 AM Markus Armbruster <address@hidden> wrote:
>
> I'm converting from qdev_set_parent_bus()/realize to qdev_realize();
> recent commit "qdev: Convert uses of qdev_set_parent_bus() with
> Coccinelle" explains why.
>
> sysbus_init_child_obj() is a wrapper around
> object_initialize_child_with_props() and qdev_set_parent_bus().  It
> passes no properties.
>
> Convert sysbus_init_child_obj()/realize to object_initialize_child()/
> qdev_realize().
>
> Coccinelle script:
>
>     @@
>     expression parent, name, size, type, errp;
>     expression child;
>     symbol true;
>     @@
>     -    sysbus_init_child_obj(parent, name, &child, size, type);
>     +    sysbus_init_child_XXX(parent, name, &child, size, type);
>          ...
>     -    object_property_set_bool(OBJECT(&child), true, "realized", errp);
>     +    sysbus_realize(&child.parent_obj, errp);
>
>     @@
>     expression parent, name, size, type, errp;
>     expression child;
>     symbol true;
>     @@
>     -    sysbus_init_child_obj(parent, name, child, size, type);
>     +    sysbus_init_child_XXX(parent, name, child, size, type);
>          ...
>     -    object_property_set_bool(OBJECT(child), true, "realized", errp);
>     +    sysbus_realize(&child->parent_obj, errp);
>
>     @@
>     expression parent, name, size, type;
>     expression child;
>     expression dev;
>     expression expr;
>     @@
>     -    sysbus_init_child_obj(parent, name, child, size, type);
>     +    sysbus_init_child_XXX(parent, name, child, size, type);
>          ...
>          dev = DEVICE(child);
>          ... when != dev = expr;
>     -    qdev_init_nofail(dev);
>     +    sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
>
>     @@
>     expression parent, propname, type;
>     expression child;
>     @@
>     -    sysbus_init_child_XXX(parent, propname, child, sizeof(*child), type)
>     +    object_initialize_child(parent, propname, child, type)
>
>     @@
>     expression parent, propname, type;
>     expression child;
>     @@
>     -    sysbus_init_child_XXX(parent, propname, &child, sizeof(child), type)
>     +    object_initialize_child(parent, propname, &child, type)
>
> Signed-off-by: Markus Armbruster <address@hidden>

Acked-by: Alistair Francis <address@hidden>

Alistair

> ---
>  hw/arm/bcm2835_peripherals.c |  5 ++--
>  hw/arm/exynos4_boards.c      |  7 +++--
>  hw/arm/mps2-tz.c             | 50 ++++++++++++++++--------------------
>  hw/arm/mps2.c                | 19 +++++---------
>  hw/arm/musca.c               | 37 ++++++++++++--------------
>  hw/arm/xlnx-versal-virt.c    |  6 ++---
>  hw/arm/xlnx-versal.c         | 36 +++++++++++---------------
>  hw/intc/armv7m_nvic.c        |  8 +++---
>  hw/mips/boston.c             |  5 ++--
>  hw/mips/cps.c                | 20 ++++++---------
>  hw/mips/mips_malta.c         |  5 ++--
>  hw/riscv/spike.c             | 21 +++++++--------
>  hw/riscv/virt.c              |  7 +++--
>  13 files changed, 96 insertions(+), 130 deletions(-)
>
> diff --git a/hw/arm/bcm2835_peripherals.c b/hw/arm/bcm2835_peripherals.c
> index 49bfabee9b..301e8f72c0 100644
> --- a/hw/arm/bcm2835_peripherals.c
> +++ b/hw/arm/bcm2835_peripherals.c
> @@ -27,11 +27,10 @@ static void create_unimp(BCM2835PeripheralState *ps,
>                           UnimplementedDeviceState *uds,
>                           const char *name, hwaddr ofs, hwaddr size)
>  {
> -    sysbus_init_child_obj(OBJECT(ps), name, uds, sizeof(*uds),
> -                          TYPE_UNIMPLEMENTED_DEVICE);
> +    object_initialize_child(OBJECT(ps), name, uds, 
> TYPE_UNIMPLEMENTED_DEVICE);
>      qdev_prop_set_string(DEVICE(uds), "name", name);
>      qdev_prop_set_uint64(DEVICE(uds), "size", size);
> -    object_property_set_bool(OBJECT(uds), true, "realized", &error_fatal);
> +    sysbus_realize(&uds->parent_obj, &error_fatal);
>      memory_region_add_subregion_overlap(&ps->peri_mr, ofs,
>                      sysbus_mmio_get_region(SYS_BUS_DEVICE(uds), 0), -1000);
>  }
> diff --git a/hw/arm/exynos4_boards.c b/hw/arm/exynos4_boards.c
> index 326122abff..28f37d22cf 100644
> --- a/hw/arm/exynos4_boards.c
> +++ b/hw/arm/exynos4_boards.c
> @@ -128,10 +128,9 @@ exynos4_boards_init_common(MachineState *machine,
>      exynos4_boards_init_ram(s, get_system_memory(),
>                              exynos4_board_ram_size[board_type]);
>
> -    sysbus_init_child_obj(OBJECT(machine), "soc",
> -                          &s->soc, sizeof(s->soc), TYPE_EXYNOS4210_SOC);
> -    object_property_set_bool(OBJECT(&s->soc), true, "realized",
> -                             &error_fatal);
> +    object_initialize_child(OBJECT(machine), "soc", &s->soc,
> +                            TYPE_EXYNOS4210_SOC);
> +    sysbus_realize(&s->soc.parent_obj, &error_fatal);
>
>      return s;
>  }
> diff --git a/hw/arm/mps2-tz.c b/hw/arm/mps2-tz.c
> index 4c49512e0b..4d917eba47 100644
> --- a/hw/arm/mps2-tz.c
> +++ b/hw/arm/mps2-tz.c
> @@ -174,11 +174,10 @@ static MemoryRegion *make_unimp_dev(MPS2TZMachineState 
> *mms,
>       */
>      UnimplementedDeviceState *uds = opaque;
>
> -    sysbus_init_child_obj(OBJECT(mms), name, uds, sizeof(*uds),
> -                          TYPE_UNIMPLEMENTED_DEVICE);
> +    object_initialize_child(OBJECT(mms), name, uds, 
> TYPE_UNIMPLEMENTED_DEVICE);
>      qdev_prop_set_string(DEVICE(uds), "name", name);
>      qdev_prop_set_uint64(DEVICE(uds), "size", size);
> -    object_property_set_bool(OBJECT(uds), true, "realized", &error_fatal);
> +    sysbus_realize(&uds->parent_obj, &error_fatal);
>      return sysbus_mmio_get_region(SYS_BUS_DEVICE(uds), 0);
>  }
>
> @@ -193,11 +192,10 @@ static MemoryRegion *make_uart(MPS2TZMachineState *mms, 
> void *opaque,
>      SysBusDevice *s;
>      DeviceState *orgate_dev = DEVICE(&mms->uart_irq_orgate);
>
> -    sysbus_init_child_obj(OBJECT(mms), name, uart, sizeof(*uart),
> -                          TYPE_CMSDK_APB_UART);
> +    object_initialize_child(OBJECT(mms), name, uart, TYPE_CMSDK_APB_UART);
>      qdev_prop_set_chr(DEVICE(uart), "chardev", serial_hd(i));
>      qdev_prop_set_uint32(DEVICE(uart), "pclk-frq", SYSCLK_FRQ);
> -    object_property_set_bool(OBJECT(uart), true, "realized", &error_fatal);
> +    sysbus_realize(&uart->parent_obj, &error_fatal);
>      s = SYS_BUS_DEVICE(uart);
>      sysbus_connect_irq(s, 0, get_sse_irq_in(mms, txirqno));
>      sysbus_connect_irq(s, 1, get_sse_irq_in(mms, rxirqno));
> @@ -214,13 +212,12 @@ static MemoryRegion *make_scc(MPS2TZMachineState *mms, 
> void *opaque,
>      DeviceState *sccdev;
>      MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
>
> -    sysbus_init_child_obj(OBJECT(mms), "scc", scc, sizeof(*scc),
> -                          TYPE_MPS2_SCC);
> +    object_initialize_child(OBJECT(mms), "scc", scc, TYPE_MPS2_SCC);
>      sccdev = DEVICE(scc);
>      qdev_prop_set_uint32(sccdev, "scc-cfg4", 0x2);
>      qdev_prop_set_uint32(sccdev, "scc-aid", 0x00200008);
>      qdev_prop_set_uint32(sccdev, "scc-id", mmc->scc_id);
> -    object_property_set_bool(OBJECT(scc), true, "realized", &error_fatal);
> +    sysbus_realize(&scc->parent_obj, &error_fatal);
>      return sysbus_mmio_get_region(SYS_BUS_DEVICE(sccdev), 0);
>  }
>
> @@ -229,9 +226,8 @@ static MemoryRegion *make_fpgaio(MPS2TZMachineState *mms, 
> void *opaque,
>  {
>      MPS2FPGAIO *fpgaio = opaque;
>
> -    sysbus_init_child_obj(OBJECT(mms), "fpgaio", fpgaio, sizeof(*fpgaio),
> -                          TYPE_MPS2_FPGAIO);
> -    object_property_set_bool(OBJECT(fpgaio), true, "realized", &error_fatal);
> +    object_initialize_child(OBJECT(mms), "fpgaio", fpgaio, TYPE_MPS2_FPGAIO);
> +    sysbus_realize(&fpgaio->parent_obj, &error_fatal);
>      return sysbus_mmio_get_region(SYS_BUS_DEVICE(fpgaio), 0);
>  }
>
> @@ -267,11 +263,10 @@ static MemoryRegion *make_mpc(MPS2TZMachineState *mms, 
> void *opaque,
>
>      memory_region_init_ram(ssram, NULL, name, ramsize[i], &error_fatal);
>
> -    sysbus_init_child_obj(OBJECT(mms), mpcname, mpc, sizeof(*mpc),
> -                          TYPE_TZ_MPC);
> +    object_initialize_child(OBJECT(mms), mpcname, mpc, TYPE_TZ_MPC);
>      object_property_set_link(OBJECT(mpc), OBJECT(ssram),
>                               "downstream", &error_fatal);
> -    object_property_set_bool(OBJECT(mpc), true, "realized", &error_fatal);
> +    sysbus_realize(&mpc->parent_obj, &error_fatal);
>      /* Map the upstream end of the MPC into system memory */
>      upstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(mpc), 1);
>      memory_region_add_subregion(get_system_memory(), rambase[i], upstream);
> @@ -310,13 +305,13 @@ static MemoryRegion *make_dma(MPS2TZMachineState *mms, 
> void *opaque,
>       * the MSC connects to the IoTKit AHB Slave Expansion port, so the
>       * DMA devices can see all devices and memory that the CPU does.
>       */
> -    sysbus_init_child_obj(OBJECT(mms), mscname, msc, sizeof(*msc), 
> TYPE_TZ_MSC);
> +    object_initialize_child(OBJECT(mms), mscname, msc, TYPE_TZ_MSC);
>      msc_downstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(&mms->iotkit), 0);
>      object_property_set_link(OBJECT(msc), OBJECT(msc_downstream),
>                               "downstream", &error_fatal);
>      object_property_set_link(OBJECT(msc), OBJECT(mms),
>                               "idau", &error_fatal);
> -    object_property_set_bool(OBJECT(msc), true, "realized", &error_fatal);
> +    sysbus_realize(&msc->parent_obj, &error_fatal);
>
>      qdev_connect_gpio_out_named(DEVICE(msc), "irq", 0,
>                                  qdev_get_gpio_in_named(iotkitdev,
> @@ -333,10 +328,10 @@ static MemoryRegion *make_dma(MPS2TZMachineState *mms, 
> void *opaque,
>                                                   "cfg_sec_resp", 0));
>      msc_upstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(msc), 0);
>
> -    sysbus_init_child_obj(OBJECT(mms), name, dma, sizeof(*dma), TYPE_PL081);
> +    object_initialize_child(OBJECT(mms), name, dma, TYPE_PL081);
>      object_property_set_link(OBJECT(dma), OBJECT(msc_upstream),
>                               "downstream", &error_fatal);
> -    object_property_set_bool(OBJECT(dma), true, "realized", &error_fatal);
> +    sysbus_realize(&dma->parent_obj, &error_fatal);
>
>      s = SYS_BUS_DEVICE(dma);
>      /* Wire up DMACINTR, DMACINTERR, DMACINTTC */
> @@ -363,8 +358,8 @@ static MemoryRegion *make_spi(MPS2TZMachineState *mms, 
> void *opaque,
>      int i = spi - &mms->spi[0];
>      SysBusDevice *s;
>
> -    sysbus_init_child_obj(OBJECT(mms), name, spi, sizeof(*spi), TYPE_PL022);
> -    object_property_set_bool(OBJECT(spi), true, "realized", &error_fatal);
> +    object_initialize_child(OBJECT(mms), name, spi, TYPE_PL022);
> +    sysbus_realize(&spi->parent_obj, &error_fatal);
>      s = SYS_BUS_DEVICE(spi);
>      sysbus_connect_irq(s, 0, get_sse_irq_in(mms, 51 + i));
>      return sysbus_mmio_get_region(s, 0);
> @@ -393,15 +388,14 @@ static void mps2tz_common_init(MachineState *machine)
>          exit(EXIT_FAILURE);
>      }
>
> -    sysbus_init_child_obj(OBJECT(machine), TYPE_IOTKIT, &mms->iotkit,
> -                          sizeof(mms->iotkit), mmc->armsse_type);
> +    object_initialize_child(OBJECT(machine), TYPE_IOTKIT, &mms->iotkit,
> +                            mmc->armsse_type);
>      iotkitdev = DEVICE(&mms->iotkit);
>      object_property_set_link(OBJECT(&mms->iotkit), OBJECT(system_memory),
>                               "memory", &error_abort);
>      qdev_prop_set_uint32(iotkitdev, "EXP_NUMIRQ", MPS2TZ_NUMIRQ);
>      qdev_prop_set_uint32(iotkitdev, "MAINCLK", SYSCLK_FRQ);
> -    object_property_set_bool(OBJECT(&mms->iotkit), true, "realized",
> -                             &error_fatal);
> +    sysbus_realize(&mms->iotkit.parent_obj, &error_fatal);
>
>      /*
>       * The AN521 needs us to create splitters to feed the IRQ inputs
> @@ -549,8 +543,8 @@ static void mps2tz_common_init(MachineState *machine)
>          int port;
>          char *gpioname;
>
> -        sysbus_init_child_obj(OBJECT(machine), ppcinfo->name, ppc,
> -                              sizeof(*ppc), TYPE_TZ_PPC);
> +        object_initialize_child(OBJECT(machine), ppcinfo->name, ppc,
> +                                TYPE_TZ_PPC);
>          ppcdev = DEVICE(ppc);
>
>          for (port = 0; port < TZ_NUM_PORTS; port++) {
> @@ -569,7 +563,7 @@ static void mps2tz_common_init(MachineState *machine)
>              g_free(portname);
>          }
>
> -        object_property_set_bool(OBJECT(ppc), true, "realized", 
> &error_fatal);
> +        sysbus_realize(&ppc->parent_obj, &error_fatal);
>
>          for (port = 0; port < TZ_NUM_PORTS; port++) {
>              const PPCPortInfo *pinfo = &ppcinfo->ports[port];
> diff --git a/hw/arm/mps2.c b/hw/arm/mps2.c
> index f246213206..372ada96e1 100644
> --- a/hw/arm/mps2.c
> +++ b/hw/arm/mps2.c
> @@ -180,8 +180,7 @@ static void mps2_common_init(MachineState *machine)
>          g_assert_not_reached();
>      }
>
> -    sysbus_init_child_obj(OBJECT(mms), "armv7m", &mms->armv7m,
> -                          sizeof(mms->armv7m), TYPE_ARMV7M);
> +    object_initialize_child(OBJECT(mms), "armv7m", &mms->armv7m, 
> TYPE_ARMV7M);
>      armv7m = DEVICE(&mms->armv7m);
>      switch (mmc->fpga_type) {
>      case FPGA_AN385:
> @@ -197,8 +196,7 @@ static void mps2_common_init(MachineState *machine)
>      qdev_prop_set_bit(armv7m, "enable-bitband", true);
>      object_property_set_link(OBJECT(&mms->armv7m), OBJECT(system_memory),
>                               "memory", &error_abort);
> -    object_property_set_bool(OBJECT(&mms->armv7m), true, "realized",
> -                             &error_fatal);
> +    sysbus_realize(&mms->armv7m.parent_obj, &error_fatal);
>
>      create_unimplemented_device("zbtsmram mirror", 0x00400000, 0x00400000);
>      create_unimplemented_device("RESERVED 1", 0x00800000, 0x00800000);
> @@ -305,23 +303,20 @@ static void mps2_common_init(MachineState *machine)
>      cmsdk_apb_timer_create(0x40000000, qdev_get_gpio_in(armv7m, 8), 
> SYSCLK_FRQ);
>      cmsdk_apb_timer_create(0x40001000, qdev_get_gpio_in(armv7m, 9), 
> SYSCLK_FRQ);
>
> -    sysbus_init_child_obj(OBJECT(mms), "dualtimer", &mms->dualtimer,
> -                          sizeof(mms->dualtimer), TYPE_CMSDK_APB_DUALTIMER);
> +    object_initialize_child(OBJECT(mms), "dualtimer", &mms->dualtimer,
> +                            TYPE_CMSDK_APB_DUALTIMER);
>      qdev_prop_set_uint32(DEVICE(&mms->dualtimer), "pclk-frq", SYSCLK_FRQ);
> -    object_property_set_bool(OBJECT(&mms->dualtimer), true, "realized",
> -                             &error_fatal);
> +    sysbus_realize(&mms->dualtimer.parent_obj, &error_fatal);
>      sysbus_connect_irq(SYS_BUS_DEVICE(&mms->dualtimer), 0,
>                         qdev_get_gpio_in(armv7m, 10));
>      sysbus_mmio_map(SYS_BUS_DEVICE(&mms->dualtimer), 0, 0x40002000);
>
> -    sysbus_init_child_obj(OBJECT(mms), "scc", &mms->scc,
> -                          sizeof(mms->scc), TYPE_MPS2_SCC);
> +    object_initialize_child(OBJECT(mms), "scc", &mms->scc, TYPE_MPS2_SCC);
>      sccdev = DEVICE(&mms->scc);
>      qdev_prop_set_uint32(sccdev, "scc-cfg4", 0x2);
>      qdev_prop_set_uint32(sccdev, "scc-aid", 0x00200008);
>      qdev_prop_set_uint32(sccdev, "scc-id", mmc->scc_id);
> -    object_property_set_bool(OBJECT(&mms->scc), true, "realized",
> -                             &error_fatal);
> +    sysbus_realize(&mms->scc.parent_obj, &error_fatal);
>      sysbus_mmio_map(SYS_BUS_DEVICE(sccdev), 0, 0x4002f000);
>
>      /* In hardware this is a LAN9220; the LAN9118 is software compatible
> diff --git a/hw/arm/musca.c b/hw/arm/musca.c
> index a1a6e887ed..0b4452159b 100644
> --- a/hw/arm/musca.c
> +++ b/hw/arm/musca.c
> @@ -142,11 +142,10 @@ static MemoryRegion *make_unimp_dev(MuscaMachineState 
> *mms,
>       */
>      UnimplementedDeviceState *uds = opaque;
>
> -    sysbus_init_child_obj(OBJECT(mms), name, uds, sizeof(*uds),
> -                          TYPE_UNIMPLEMENTED_DEVICE);
> +    object_initialize_child(OBJECT(mms), name, uds, 
> TYPE_UNIMPLEMENTED_DEVICE);
>      qdev_prop_set_string(DEVICE(uds), "name", name);
>      qdev_prop_set_uint64(DEVICE(uds), "size", size);
> -    object_property_set_bool(OBJECT(uds), true, "realized", &error_fatal);
> +    sysbus_realize(&uds->parent_obj, &error_fatal);
>      return sysbus_mmio_get_region(SYS_BUS_DEVICE(uds), 0);
>  }
>
> @@ -245,22 +244,21 @@ static MemoryRegion *make_mpc(MuscaMachineState *mms, 
> void *opaque,
>      case MPC_CRYPTOISLAND:
>          /* We don't implement the CryptoIsland yet */
>          uds = &mms->cryptoisland;
> -        sysbus_init_child_obj(OBJECT(mms), name, uds, sizeof(*uds),
> -                              TYPE_UNIMPLEMENTED_DEVICE);
> +        object_initialize_child(OBJECT(mms), name, uds,
> +                                TYPE_UNIMPLEMENTED_DEVICE);
>          qdev_prop_set_string(DEVICE(uds), "name", mpcinfo[i].name);
>          qdev_prop_set_uint64(DEVICE(uds), "size", mpcinfo[i].size);
> -        object_property_set_bool(OBJECT(uds), true, "realized", 
> &error_fatal);
> +        sysbus_realize(&uds->parent_obj, &error_fatal);
>          downstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(uds), 0);
>          break;
>      default:
>          g_assert_not_reached();
>      }
>
> -    sysbus_init_child_obj(OBJECT(mms), mpcname, mpc, sizeof(*mpc),
> -                          TYPE_TZ_MPC);
> +    object_initialize_child(OBJECT(mms), mpcname, mpc, TYPE_TZ_MPC);
>      object_property_set_link(OBJECT(mpc), OBJECT(downstream),
>                               "downstream", &error_fatal);
> -    object_property_set_bool(OBJECT(mpc), true, "realized", &error_fatal);
> +    sysbus_realize(&mpc->parent_obj, &error_fatal);
>      /* Map the upstream end of the MPC into system memory */
>      upstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(mpc), 1);
>      memory_region_add_subregion(get_system_memory(), mpcinfo[i].addr, 
> upstream);
> @@ -279,8 +277,8 @@ static MemoryRegion *make_rtc(MuscaMachineState *mms, 
> void *opaque,
>  {
>      PL031State *rtc = opaque;
>
> -    sysbus_init_child_obj(OBJECT(mms), name, rtc, sizeof(*rtc), TYPE_PL031);
> -    object_property_set_bool(OBJECT(rtc), true, "realized", &error_fatal);
> +    object_initialize_child(OBJECT(mms), name, rtc, TYPE_PL031);
> +    sysbus_realize(&rtc->parent_obj, &error_fatal);
>      sysbus_connect_irq(SYS_BUS_DEVICE(rtc), 0, get_sse_irq_in(mms, 39));
>      return sysbus_mmio_get_region(SYS_BUS_DEVICE(rtc), 0);
>  }
> @@ -293,9 +291,9 @@ static MemoryRegion *make_uart(MuscaMachineState *mms, 
> void *opaque,
>      int irqbase = 7 + i * 6;
>      SysBusDevice *s;
>
> -    sysbus_init_child_obj(OBJECT(mms), name, uart, sizeof(*uart), 
> TYPE_PL011);
> +    object_initialize_child(OBJECT(mms), name, uart, TYPE_PL011);
>      qdev_prop_set_chr(DEVICE(uart), "chardev", serial_hd(i));
> -    object_property_set_bool(OBJECT(uart), true, "realized", &error_fatal);
> +    sysbus_realize(&uart->parent_obj, &error_fatal);
>      s = SYS_BUS_DEVICE(uart);
>      sysbus_connect_irq(s, 0, get_sse_irq_in(mms, irqbase + 5)); /* combined 
> */
>      sysbus_connect_irq(s, 1, get_sse_irq_in(mms, irqbase + 0)); /* RX */
> @@ -373,8 +371,8 @@ static void musca_init(MachineState *machine)
>          exit(1);
>      }
>
> -    sysbus_init_child_obj(OBJECT(machine), "sse-200", &mms->sse,
> -                          sizeof(mms->sse), TYPE_SSE200);
> +    object_initialize_child(OBJECT(machine), "sse-200", &mms->sse,
> +                            TYPE_SSE200);
>      ssedev = DEVICE(&mms->sse);
>      object_property_set_link(OBJECT(&mms->sse), OBJECT(system_memory),
>                               "memory", &error_fatal);
> @@ -390,8 +388,7 @@ static void musca_init(MachineState *machine)
>          qdev_prop_set_bit(ssedev, "CPU0_FPU", true);
>          qdev_prop_set_bit(ssedev, "CPU0_DSP", true);
>      }
> -    object_property_set_bool(OBJECT(&mms->sse), true, "realized",
> -                             &error_fatal);
> +    sysbus_realize(&mms->sse.parent_obj, &error_fatal);
>
>      /*
>       * We need to create splitters to feed the IRQ inputs
> @@ -531,8 +528,8 @@ static void musca_init(MachineState *machine)
>          int port;
>          char *gpioname;
>
> -        sysbus_init_child_obj(OBJECT(machine), ppcinfo->name, ppc,
> -                              sizeof(*ppc), TYPE_TZ_PPC);
> +        object_initialize_child(OBJECT(machine), ppcinfo->name, ppc,
> +                                TYPE_TZ_PPC);
>          ppcdev = DEVICE(ppc);
>
>          for (port = 0; port < TZ_NUM_PORTS; port++) {
> @@ -551,7 +548,7 @@ static void musca_init(MachineState *machine)
>              g_free(portname);
>          }
>
> -        object_property_set_bool(OBJECT(ppc), true, "realized", 
> &error_fatal);
> +        sysbus_realize(&ppc->parent_obj, &error_fatal);
>
>          for (port = 0; port < TZ_NUM_PORTS; port++) {
>              const PPCPortInfo *pinfo = &ppcinfo->ports[port];
> diff --git a/hw/arm/xlnx-versal-virt.c b/hw/arm/xlnx-versal-virt.c
> index 3d8431dbcf..8806b1ff98 100644
> --- a/hw/arm/xlnx-versal-virt.c
> +++ b/hw/arm/xlnx-versal-virt.c
> @@ -500,13 +500,13 @@ static void versal_virt_init(MachineState *machine)
>          psci_conduit = QEMU_PSCI_CONDUIT_SMC;
>      }
>
> -    sysbus_init_child_obj(OBJECT(machine), "xlnx-versal", &s->soc,
> -                          sizeof(s->soc), TYPE_XLNX_VERSAL);
> +    object_initialize_child(OBJECT(machine), "xlnx-versal", &s->soc,
> +                            TYPE_XLNX_VERSAL);
>      object_property_set_link(OBJECT(&s->soc), OBJECT(machine->ram),
>                               "ddr", &error_abort);
>      object_property_set_int(OBJECT(&s->soc), psci_conduit,
>                              "psci-conduit", &error_abort);
> -    object_property_set_bool(OBJECT(&s->soc), true, "realized", 
> &error_fatal);
> +    sysbus_realize(&s->soc.parent_obj, &error_fatal);
>
>      fdt_create(s);
>      create_virtio_regions(s);
> diff --git a/hw/arm/xlnx-versal.c b/hw/arm/xlnx-versal.c
> index 38d6b91d15..b5484e3a9d 100644
> --- a/hw/arm/xlnx-versal.c
> +++ b/hw/arm/xlnx-versal.c
> @@ -62,9 +62,8 @@ static void versal_create_apu_gic(Versal *s, qemu_irq *pic)
>      int nr_apu_cpus = ARRAY_SIZE(s->fpd.apu.cpu);
>      int i;
>
> -    sysbus_init_child_obj(OBJECT(s), "apu-gic",
> -                          &s->fpd.apu.gic, sizeof(s->fpd.apu.gic),
> -                          gicv3_class_name());
> +    object_initialize_child(OBJECT(s), "apu-gic", &s->fpd.apu.gic,
> +                            gicv3_class_name());
>      gicbusdev = SYS_BUS_DEVICE(&s->fpd.apu.gic);
>      gicdev = DEVICE(&s->fpd.apu.gic);
>      qdev_prop_set_uint32(gicdev, "revision", 3);
> @@ -74,8 +73,7 @@ static void versal_create_apu_gic(Versal *s, qemu_irq *pic)
>      qdev_prop_set_uint32(gicdev, "redist-region-count[0]", 2);
>      qdev_prop_set_bit(gicdev, "has-security-extensions", true);
>
> -    object_property_set_bool(OBJECT(&s->fpd.apu.gic), true, "realized",
> -                                    &error_fatal);
> +    sysbus_realize(&s->fpd.apu.gic.parent_obj, &error_fatal);
>
>      for (i = 0; i < ARRAY_SIZE(addrs); i++) {
>          MemoryRegion *mr;
> @@ -133,12 +131,11 @@ static void versal_create_uarts(Versal *s, qemu_irq 
> *pic)
>          DeviceState *dev;
>          MemoryRegion *mr;
>
> -        sysbus_init_child_obj(OBJECT(s), name,
> -                              &s->lpd.iou.uart[i], 
> sizeof(s->lpd.iou.uart[i]),
> -                              TYPE_PL011);
> +        object_initialize_child(OBJECT(s), name, &s->lpd.iou.uart[i],
> +                                TYPE_PL011);
>          dev = DEVICE(&s->lpd.iou.uart[i]);
>          qdev_prop_set_chr(dev, "chardev", serial_hd(i));
> -        qdev_init_nofail(dev);
> +        sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
>
>          mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
>          memory_region_add_subregion(&s->mr_ps, addrs[i], mr);
> @@ -160,9 +157,8 @@ static void versal_create_gems(Versal *s, qemu_irq *pic)
>          DeviceState *dev;
>          MemoryRegion *mr;
>
> -        sysbus_init_child_obj(OBJECT(s), name,
> -                              &s->lpd.iou.gem[i], sizeof(s->lpd.iou.gem[i]),
> -                              TYPE_CADENCE_GEM);
> +        object_initialize_child(OBJECT(s), name, &s->lpd.iou.gem[i],
> +                                TYPE_CADENCE_GEM);
>          dev = DEVICE(&s->lpd.iou.gem[i]);
>          if (nd->used) {
>              qemu_check_nic_model(nd, "cadence_gem");
> @@ -174,7 +170,7 @@ static void versal_create_gems(Versal *s, qemu_irq *pic)
>          object_property_set_link(OBJECT(dev),
>                                   OBJECT(&s->mr_ps), "dma",
>                                   &error_abort);
> -        qdev_init_nofail(dev);
> +        sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
>
>          mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
>          memory_region_add_subregion(&s->mr_ps, addrs[i], mr);
> @@ -193,12 +189,11 @@ static void versal_create_admas(Versal *s, qemu_irq 
> *pic)
>          DeviceState *dev;
>          MemoryRegion *mr;
>
> -        sysbus_init_child_obj(OBJECT(s), name,
> -                              &s->lpd.iou.adma[i], 
> sizeof(s->lpd.iou.adma[i]),
> -                              TYPE_XLNX_ZDMA);
> +        object_initialize_child(OBJECT(s), name, &s->lpd.iou.adma[i],
> +                                TYPE_XLNX_ZDMA);
>          dev = DEVICE(&s->lpd.iou.adma[i]);
>          object_property_set_int(OBJECT(dev), 128, "bus-width", &error_abort);
> -        qdev_init_nofail(dev);
> +        sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
>
>          mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
>          memory_region_add_subregion(&s->mr_ps,
> @@ -218,9 +213,8 @@ static void versal_create_sds(Versal *s, qemu_irq *pic)
>          DeviceState *dev;
>          MemoryRegion *mr;
>
> -        sysbus_init_child_obj(OBJECT(s), "sd[*]",
> -                              &s->pmc.iou.sd[i], sizeof(s->pmc.iou.sd[i]),
> -                              TYPE_SYSBUS_SDHCI);
> +        object_initialize_child(OBJECT(s), "sd[*]", &s->pmc.iou.sd[i],
> +                                TYPE_SYSBUS_SDHCI);
>          dev = DEVICE(&s->pmc.iou.sd[i]);
>
>          object_property_set_uint(OBJECT(dev),
> @@ -228,7 +222,7 @@ static void versal_create_sds(Versal *s, qemu_irq *pic)
>          object_property_set_uint(OBJECT(dev), SDHCI_CAPABILITIES, "capareg",
>                                   &error_fatal);
>          object_property_set_uint(OBJECT(dev), UHS_I, "uhs", &error_fatal);
> -        qdev_init_nofail(dev);
> +        sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
>
>          mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
>          memory_region_add_subregion(&s->mr_ps,
> diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c
> index 1ad35e5529..f74ecdbe27 100644
> --- a/hw/intc/armv7m_nvic.c
> +++ b/hw/intc/armv7m_nvic.c
> @@ -2655,12 +2655,10 @@ static void armv7m_nvic_realize(DeviceState *dev, 
> Error **errp)
>           * as we didn't know then if the CPU had the security extensions;
>           * so we have to do it here.
>           */
> -        sysbus_init_child_obj(OBJECT(dev), "systick-reg-s",
> -                              &s->systick[M_REG_S],
> -                              sizeof(s->systick[M_REG_S]), TYPE_SYSTICK);
> +        object_initialize_child(OBJECT(dev), "systick-reg-s",
> +                                &s->systick[M_REG_S], TYPE_SYSTICK);
>
> -        object_property_set_bool(OBJECT(&s->systick[M_REG_S]), true,
> -                                 "realized", &err);
> +        sysbus_realize(&s->systick[M_REG_S].parent_obj, &err);
>          if (err != NULL) {
>              error_propagate(errp, err);
>              return;
> diff --git a/hw/mips/boston.c b/hw/mips/boston.c
> index 2443238d9d..c997c2a082 100644
> --- a/hw/mips/boston.c
> +++ b/hw/mips/boston.c
> @@ -455,12 +455,11 @@ static void boston_mach_init(MachineState *machine)
>
>      is_64b = cpu_supports_isa(machine->cpu_type, ISA_MIPS64);
>
> -    sysbus_init_child_obj(OBJECT(machine), "cps", &s->cps, sizeof(s->cps),
> -                          TYPE_MIPS_CPS);
> +    object_initialize_child(OBJECT(machine), "cps", &s->cps, TYPE_MIPS_CPS);
>      object_property_set_str(OBJECT(&s->cps), machine->cpu_type, "cpu-type",
>                              &err);
>      object_property_set_int(OBJECT(&s->cps), machine->smp.cpus, "num-vp", 
> &err);
> -    object_property_set_bool(OBJECT(&s->cps), true, "realized", &err);
> +    sysbus_realize(&s->cps.parent_obj, &err);
>
>      if (err != NULL) {
>          error_report("%s", error_get_pretty(err));
> diff --git a/hw/mips/cps.c b/hw/mips/cps.c
> index 92b9b1a5f6..825f180512 100644
> --- a/hw/mips/cps.c
> +++ b/hw/mips/cps.c
> @@ -99,8 +99,7 @@ static void mips_cps_realize(DeviceState *dev, Error **errp)
>
>      /* Inter-Thread Communication Unit */
>      if (itu_present) {
> -        sysbus_init_child_obj(OBJECT(dev), "itu", &s->itu, sizeof(s->itu),
> -                              TYPE_MIPS_ITU);
> +        object_initialize_child(OBJECT(dev), "itu", &s->itu, TYPE_MIPS_ITU);
>          object_property_set_int(OBJECT(&s->itu), 16, "num-fifo", &err);
>          object_property_set_int(OBJECT(&s->itu), 16, "num-semaphores", &err);
>          object_property_set_bool(OBJECT(&s->itu), saar_present, 
> "saar-present",
> @@ -108,7 +107,7 @@ static void mips_cps_realize(DeviceState *dev, Error 
> **errp)
>          if (saar_present) {
>              s->itu.saar = &env->CP0_SAAR;
>          }
> -        object_property_set_bool(OBJECT(&s->itu), true, "realized", &err);
> +        sysbus_realize(&s->itu.parent_obj, &err);
>          if (err != NULL) {
>              error_propagate(errp, err);
>              return;
> @@ -119,11 +118,10 @@ static void mips_cps_realize(DeviceState *dev, Error 
> **errp)
>      }
>
>      /* Cluster Power Controller */
> -    sysbus_init_child_obj(OBJECT(dev), "cpc", &s->cpc, sizeof(s->cpc),
> -                          TYPE_MIPS_CPC);
> +    object_initialize_child(OBJECT(dev), "cpc", &s->cpc, TYPE_MIPS_CPC);
>      object_property_set_int(OBJECT(&s->cpc), s->num_vp, "num-vp", &err);
>      object_property_set_int(OBJECT(&s->cpc), 1, "vp-start-running", &err);
> -    object_property_set_bool(OBJECT(&s->cpc), true, "realized", &err);
> +    sysbus_realize(&s->cpc.parent_obj, &err);
>      if (err != NULL) {
>          error_propagate(errp, err);
>          return;
> @@ -133,11 +131,10 @@ static void mips_cps_realize(DeviceState *dev, Error 
> **errp)
>                              sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->cpc), 
> 0));
>
>      /* Global Interrupt Controller */
> -    sysbus_init_child_obj(OBJECT(dev), "gic", &s->gic, sizeof(s->gic),
> -                          TYPE_MIPS_GIC);
> +    object_initialize_child(OBJECT(dev), "gic", &s->gic, TYPE_MIPS_GIC);
>      object_property_set_int(OBJECT(&s->gic), s->num_vp, "num-vp", &err);
>      object_property_set_int(OBJECT(&s->gic), 128, "num-irq", &err);
> -    object_property_set_bool(OBJECT(&s->gic), true, "realized", &err);
> +    sysbus_realize(&s->gic.parent_obj, &err);
>      if (err != NULL) {
>          error_propagate(errp, err);
>          return;
> @@ -149,14 +146,13 @@ static void mips_cps_realize(DeviceState *dev, Error 
> **errp)
>      /* Global Configuration Registers */
>      gcr_base = env->CP0_CMGCRBase << 4;
>
> -    sysbus_init_child_obj(OBJECT(dev), "gcr", &s->gcr, sizeof(s->gcr),
> -                          TYPE_MIPS_GCR);
> +    object_initialize_child(OBJECT(dev), "gcr", &s->gcr, TYPE_MIPS_GCR);
>      object_property_set_int(OBJECT(&s->gcr), s->num_vp, "num-vp", &err);
>      object_property_set_int(OBJECT(&s->gcr), 0x800, "gcr-rev", &err);
>      object_property_set_int(OBJECT(&s->gcr), gcr_base, "gcr-base", &err);
>      object_property_set_link(OBJECT(&s->gcr), OBJECT(&s->gic.mr), "gic", 
> &err);
>      object_property_set_link(OBJECT(&s->gcr), OBJECT(&s->cpc.mr), "cpc", 
> &err);
> -    object_property_set_bool(OBJECT(&s->gcr), true, "realized", &err);
> +    sysbus_realize(&s->gcr.parent_obj, &err);
>      if (err != NULL) {
>          error_propagate(errp, err);
>          return;
> diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
> index 5ef7eda014..6d9b6166ab 100644
> --- a/hw/mips/mips_malta.c
> +++ b/hw/mips/mips_malta.c
> @@ -1187,11 +1187,10 @@ static void create_cps(MachineState *ms, MaltaState 
> *s,
>  {
>      Error *err = NULL;
>
> -    sysbus_init_child_obj(OBJECT(s), "cps", &s->cps, sizeof(s->cps),
> -                          TYPE_MIPS_CPS);
> +    object_initialize_child(OBJECT(s), "cps", &s->cps, TYPE_MIPS_CPS);
>      object_property_set_str(OBJECT(&s->cps), ms->cpu_type, "cpu-type", &err);
>      object_property_set_int(OBJECT(&s->cps), ms->smp.cpus, "num-vp", &err);
> -    object_property_set_bool(OBJECT(&s->cps), true, "realized", &err);
> +    sysbus_realize(&s->cps.parent_obj, &err);
>      if (err != NULL) {
>          error_report("%s", error_get_pretty(err));
>          exit(1);
> diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c
> index 01d52e758e..98c4d39bda 100644
> --- a/hw/riscv/spike.c
> +++ b/hw/riscv/spike.c
> @@ -169,14 +169,13 @@ static void spike_board_init(MachineState *machine)
>      unsigned int smp_cpus = machine->smp.cpus;
>
>      /* Initialize SOC */
> -    sysbus_init_child_obj(OBJECT(machine), "soc", &s->soc, sizeof(s->soc),
> -                          TYPE_RISCV_HART_ARRAY);
> +    object_initialize_child(OBJECT(machine), "soc", &s->soc,
> +                            TYPE_RISCV_HART_ARRAY);
>      object_property_set_str(OBJECT(&s->soc), machine->cpu_type, "cpu-type",
>                              &error_abort);
>      object_property_set_int(OBJECT(&s->soc), smp_cpus, "num-harts",
>                              &error_abort);
> -    object_property_set_bool(OBJECT(&s->soc), true, "realized",
> -                            &error_abort);
> +    sysbus_realize(&s->soc.parent_obj, &error_fatal);
>
>      /* register system main memory (actual RAM) */
>      memory_region_init_ram(main_mem, NULL, "riscv.spike.ram",
> @@ -275,14 +274,13 @@ static void spike_v1_10_0_board_init(MachineState 
> *machine)
>      }
>
>      /* Initialize SOC */
> -    sysbus_init_child_obj(OBJECT(machine), "soc", &s->soc, sizeof(s->soc),
> -                          TYPE_RISCV_HART_ARRAY);
> +    object_initialize_child(OBJECT(machine), "soc", &s->soc,
> +                            TYPE_RISCV_HART_ARRAY);
>      object_property_set_str(OBJECT(&s->soc), SPIKE_V1_10_0_CPU, "cpu-type",
>                              &error_abort);
>      object_property_set_int(OBJECT(&s->soc), smp_cpus, "num-harts",
>                              &error_abort);
> -    object_property_set_bool(OBJECT(&s->soc), true, "realized",
> -                            &error_abort);
> +    sysbus_realize(&s->soc.parent_obj, &error_fatal);
>
>      /* register system main memory (actual RAM) */
>      memory_region_init_ram(main_mem, NULL, "riscv.spike.ram",
> @@ -365,14 +363,13 @@ static void spike_v1_09_1_board_init(MachineState 
> *machine)
>      }
>
>      /* Initialize SOC */
> -    sysbus_init_child_obj(OBJECT(machine), "soc", &s->soc, sizeof(s->soc),
> -                          TYPE_RISCV_HART_ARRAY);
> +    object_initialize_child(OBJECT(machine), "soc", &s->soc,
> +                            TYPE_RISCV_HART_ARRAY);
>      object_property_set_str(OBJECT(&s->soc), SPIKE_V1_09_1_CPU, "cpu-type",
>                              &error_abort);
>      object_property_set_int(OBJECT(&s->soc), smp_cpus, "num-harts",
>                              &error_abort);
> -    object_property_set_bool(OBJECT(&s->soc), true, "realized",
> -                            &error_abort);
> +    sysbus_realize(&s->soc.parent_obj, &error_fatal);
>
>      /* register system main memory (actual RAM) */
>      memory_region_init_ram(main_mem, NULL, "riscv.spike.ram",
> diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
> index 6a765c72f7..e9ec906e7b 100644
> --- a/hw/riscv/virt.c
> +++ b/hw/riscv/virt.c
> @@ -485,14 +485,13 @@ static void riscv_virt_board_init(MachineState *machine)
>      unsigned int smp_cpus = machine->smp.cpus;
>
>      /* Initialize SOC */
> -    sysbus_init_child_obj(OBJECT(machine), "soc", &s->soc, sizeof(s->soc),
> -                          TYPE_RISCV_HART_ARRAY);
> +    object_initialize_child(OBJECT(machine), "soc", &s->soc,
> +                            TYPE_RISCV_HART_ARRAY);
>      object_property_set_str(OBJECT(&s->soc), machine->cpu_type, "cpu-type",
>                              &error_abort);
>      object_property_set_int(OBJECT(&s->soc), smp_cpus, "num-harts",
>                              &error_abort);
> -    object_property_set_bool(OBJECT(&s->soc), true, "realized",
> -                            &error_abort);
> +    sysbus_realize(&s->soc.parent_obj, &error_fatal);
>
>      /* register system main memory (actual RAM) */
>      memory_region_init_ram(main_mem, NULL, "riscv_virt_board.ram",
> --
> 2.21.1
>
>



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