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qemu/include/hw
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Igor Mammedov 17cc0128da qdev: Let machine hotplug handler to override bus hotplug handler 
it will allow to return another hotplug handler than the default
one for a specific bus based device type. Which is needed to handle
non trivial plug/unplug sequences that need the access to resources
configured outside of bus where device is attached.

That will allow for returned hotplug handler to orchestrate wiring
in arbitrary order, by chaining other hotplug handlers when
it's needed.

PS:
It could be used for hybrid virtio-mem and virtio-pmem devices
where it will return machine as hotplug handler which will do
necessary wiring at machine level and then pass control down
the chain to bus specific hotplug handler.

Example of top level hotplug handler override and custom plug sequence:

  some_machine_get_hotplug_handler(machine){
      if (object_dynamic_cast(OBJECT(dev), TYPE_SOME_BUS_DEVICE)) {
          return HOTPLUG_HANDLER(machine);
      }
      return NULL;
  }

  some_machine_device_plug(hotplug_dev, dev) {
      if (object_dynamic_cast(OBJECT(dev), TYPE_SOME_BUS_DEVICE)) {
          /* do machine specific initialization */
          some_machine_init_special_device(dev)

          /* pass control to bus specific handler */
          hotplug_handler_plug(dev->parent_bus->hotplug_handler, dev)
      }
  }

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190228122849.4296-3-david@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-03-06 11:51:08 -03:00
..
acpi hw/acpi: remove unused function acpi_table_add_builtin() 2019-03-06 10:22:38 +01:00
adc STM32F2xx: Add the ADC device 2016-10-04 13:28:07 +01:00
arm hw/arm/virt: Dynamic memory map depending on RAM requirements 2019-03-05 15:55:09 +00:00
audio audio: use TYPE_MV88W8618_AUDIO instead of hardcoded string 2018-10-29 13:50:15 +01:00
block block: Remove deprecated -drive option serial 2018-08-15 12:50:39 +02:00
char hw/char/pl011: Support all interrupt lines 2019-02-21 18:17:46 +00:00
core hw/core/split-irq: Device that splits IRQ lines 2018-03-02 11:03:45 +00:00
cpu qom/cpu: Add cluster_index to CPUState 2019-01-29 11:46:05 +00:00
cris char: rename CharDriverState Chardev 2017-01-27 18:07:59 +01:00
display hw/display/milkymist-tmu2: Move inlined code from header to source 2019-02-01 11:58:50 +01:00
dma hw/dma/pl080: Don't use CPU address space for DMA accesses 2018-08-20 11:24:33 +01:00
firmware hw/smbios: fix offset of type 3 sku field 2019-02-22 10:51:31 -05:00
gpio hw/gpio/nrf51_gpio: Add nRF51 GPIO peripheral 2019-01-07 15:23:47 +00:00
hyperv hyperv: process POST_MESSAGE hypercall 2018-10-19 13:44:14 +02:00
i2c i2c:smbus_slave: Add an SMBus vmstate structure 2019-02-27 21:06:08 -06:00
i386 hw/i386/pc.c: remove unused function pc_acpi_init() 2019-03-06 10:22:03 +01:00
ide hw/ide: drop iov field from IDEDMA 2019-02-22 09:42:13 +00:00
input hw/input/ps2: Remove PS2State from "qemu/typedefs.h" 2019-01-22 05:14:32 +01:00
intc qom: make interface types abstract 2018-12-11 15:45:22 -02:00
ipack ipack: Update e-mail address 2016-05-18 15:04:27 +03:00
ipmi qom: make interface types abstract 2018-12-11 15:45:22 -02:00
isa qom: make interface types abstract 2018-12-11 15:45:22 -02:00
kvm hw: move headers to include/ 2013-04-08 18:13:10 +02:00
lm32 intc: make HMP 'info irq' and 'info pic' commands use InterruptStatsProvider interface 2016-10-04 10:00:25 +02:00
m68k hw/char/mcf_uart: QOMify the ColdFire UART 2017-02-16 14:06:56 +01:00
mem qom: make interface types abstract 2018-12-11 15:45:22 -02:00
mips hw/mips: Use the IEC binary prefix definitions 2018-07-02 15:41:16 +02:00
misc hw/arm/armsse: Unify init-svtor and cpuwait handling 2019-02-28 11:03:04 +00:00
net net: cadence_gem: Add support for selecting the DMA MemoryRegion 2018-10-16 17:13:49 +01:00
nvram hw/nvram/nrf51_nvm: Add nRF51 non-volatile memories 2019-02-01 15:31:26 +00:00
pci pci: Move NVIDIA vendor id to the rest of ids 2019-02-22 10:51:31 -05:00
pci-bridge Clean up includes 2018-02-09 05:05:11 +01:00
pci-host spapr_pci: provide node start offset via spapr_populate_pci_dt() 2019-02-26 09:21:25 +11:00
ppc spapr: add hotplug hooks for PHB hotplug 2019-02-26 09:21:25 +11:00
riscv sifive_uart: Implement interrupt pending register 2018-12-20 12:08:43 -08:00
s390x target/s390x: Split out s390-tod.h 2019-02-18 11:25:43 +01:00
scsi scsi: esp: Defer command completion until previous interrupts have been handled 2019-01-11 13:57:24 +01:00
sd sdcard: Reflect when the Spec v3 is supported in the Config Register (SCR) 2018-06-08 13:15:34 +01:00
sh4 avoid TABs in files that only contain a few 2019-01-11 15:46:56 +01:00
sparc sun4u_iommu: update to reflect IOMMU is no longer part of the APB device 2018-01-09 21:48:20 +00:00
ssi aspeed/smc: snoop SPI transfers to fake dummy cycles 2019-01-29 11:46:05 +00:00
timer hw/timer/pl031: Allow use as an embedded-struct device 2019-02-21 18:17:46 +00:00
tricore Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
unicore32 hw/unicore32: restrict hw addr defines to source file 2017-12-18 17:07:02 +03:00
usb usb: Add basic code to emulate Chipidea USB IP 2018-02-09 10:40:30 +00:00
vfio qemu/queue.h: typedef QTAILQ heads 2019-01-11 15:46:55 +01:00
virtio virtio-net: Switch to using announce timer 2019-03-05 11:27:41 +08:00
watchdog hw/arm/stellaris: Implement watchdog timer 2019-03-05 15:55:09 +00:00
xen pvh: Add x86/HVM direct boot ABI header file 2019-02-05 16:50:16 +01:00
xtensa target/xtensa: add MX interrupt controller 2019-01-28 11:55:20 -08:00
boards.h hw/boards: Add a MachineState parameter to kvm_type callback 2019-03-05 15:55:09 +00:00
bt.h char: rename CharDriverState Chardev 2017-01-27 18:07:59 +01:00
devices.h ui/console: Remove MouseTransformInfo from qemu/typedefs.h 2019-01-22 05:14:33 +01:00
elf_ops.h elf-ops.h: Add get_elf_note_type() 2019-02-05 16:50:16 +01:00
empty_slot.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
fw-path-provider.h qom: make interface types abstract 2018-12-11 15:45:22 -02:00
hotplug.h qom: make interface types abstract 2018-12-11 15:45:22 -02:00
hw.h migration: Split qemu-file.h 2017-06-01 18:49:22 +02:00
ide.h ide/via: Rename functions to match device name 2019-01-25 14:52:12 -05:00
irq.h hw/core/split-irq: Device that splits IRQ lines 2018-03-02 11:03:45 +00:00
loader-fit.h Use #include "..." for our own headers, <...> for others 2018-02-09 05:05:11 +01:00
loader.h elf: Add optional function ptr to load_elf() to parse ELF notes 2019-02-05 16:50:16 +01:00
nmi.h qom: make interface types abstract 2018-12-11 15:45:22 -02:00
or-irq.h hw/core/or-irq: Support more than 16 inputs to an OR gate 2018-06-15 15:23:34 +01:00
pcmcia.h hw/pcmcia: Remove PCMCIACardState from "qemu/typedefs.h" 2019-01-22 05:14:32 +01:00
platform-bus.h platform-bus-device: use device plug callback instead of machine_done notifier 2018-05-10 18:10:56 +01:00
ptimer.h ptimer: Add TRIGGER_ONLY_ON_DECREMENT policy option 2018-07-09 14:51:34 +01:00
qdev-core.h qdev: Let machine hotplug handler to override bus hotplug handler 2019-03-06 11:51:08 -03:00
qdev-dma.h qdev: Remove hex8/32/64 property types 2014-02-14 21:12:04 +01:00
qdev-properties.h qapi: Define PCIe link speed and width properties 2018-12-19 16:48:16 -05:00
qdev.h hw: move headers to include/ 2013-04-08 18:13:10 +02:00
register.h hw: register: Run post_write hook on reset 2018-03-01 11:05:43 +00:00
registerfields.h Use #include "..." for our own headers, <...> for others 2018-02-09 05:05:11 +01:00
stream.h qom: make interface types abstract 2018-12-11 15:45:22 -02:00
sysbus.h core/sysbus: remove the SysBusDeviceClass::init path 2018-12-13 13:48:03 +00:00
usb.h qemu/queue.h: simplify reverse access to QTAILQ 2019-01-11 15:46:55 +01:00