[PATCHv6,4/5] fw_cfg: move qdev_init_nofail() from fw_cfg_init1() to callers

Commit Message

Mark Cave-Ayland June 19, 2017, 12:59 p.m. UTC

When looking to instantiate a TYPE_FW_CFG_MEM or TYPE_FW_CFG_IO device to be
able to wire it up differently, it is much more convenient for the caller to
instantiate the device and have the fw_cfg default files already preloaded
during realize.

Move fw_cfg_init1() to the end of both the fw_cfg_mem_realize() and
fw_cfg_io_realize() functions so it no longer needs to be called manually
when instantiating the device, and also rename it to fw_cfg_common_realize()
which better describes its new purpose.

Signed-off-by: Mark Cave-Ayland <[e-mail]>
Reviewed-by: Laszlo Ersek <[e-mail]>
Tested-by: Laszlo Ersek <[e-mail]>
---
 hw/nvram/fw_cfg.c |   12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

Patch

diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c
index af45012..df99903 100644
--- a/hw/nvram/fw_cfg.c
+++ b/hw/nvram/fw_cfg.c
@@ -909,14 +909,12 @@  static void fw_cfg_machine_ready(struct Notifier *n, void *data)
 
 
 
-static void fw_cfg_init1(DeviceState *dev)
+static void fw_cfg_common_realize(DeviceState *dev)
 {
     FWCfgState *s = FW_CFG(dev);
     MachineState *machine = MACHINE(qdev_get_machine());
     uint32_t version = FW_CFG_VERSION;
 
-    qdev_init_nofail(dev);
-
     fw_cfg_add_bytes(s, FW_CFG_SIGNATURE, (char *)"QEMU", 4);
     fw_cfg_add_bytes(s, FW_CFG_UUID, &qemu_uuid, 16);
     fw_cfg_add_i16(s, FW_CFG_NOGRAPHIC, (uint16_t)!machine->enable_graphics);
@@ -948,7 +946,7 @@  FWCfgState *fw_cfg_init_io_dma(uint32_t iobase, uint32_t dma_iobase,
         qdev_prop_set_bit(dev, "dma_enabled", false);
     }
 
-    fw_cfg_init1(dev);
+    qdev_init_nofail(dev);
 
     sbd = SYS_BUS_DEVICE(dev);
     ios = FW_CFG_IO(dev);
@@ -986,7 +984,7 @@  FWCfgState *fw_cfg_init_mem_wide(hwaddr ctl_addr,
         qdev_prop_set_bit(dev, "dma_enabled", false);
     }
 
-    fw_cfg_init1(dev);
+    qdev_init_nofail(dev);
 
     sbd = SYS_BUS_DEVICE(dev);
     sysbus_mmio_map(sbd, 0, ctl_addr);
@@ -1097,6 +1095,8 @@  static void fw_cfg_io_realize(DeviceState *dev, Error **errp)
                               &fw_cfg_dma_mem_ops, FW_CFG(s), "fwcfg.dma",
                               sizeof(dma_addr_t));
     }
+
+    fw_cfg_common_realize(dev);
 }
 
 static void fw_cfg_io_class_init(ObjectClass *klass, void *data)
@@ -1163,6 +1163,8 @@  static void fw_cfg_mem_realize(DeviceState *dev, Error **errp)
                               sizeof(dma_addr_t));
         sysbus_init_mmio(sbd, &FW_CFG(s)->dma_iomem);
     }
+
+    fw_cfg_common_realize(dev);
 }
 
 static void fw_cfg_mem_class_init(ObjectClass *klass, void *data)