(qemu) info qtree
info qtree
bus: main-system-bus
  type System
  dev: platform-bus-device, id "platform-bus-device"
    gpio-out "sysbus-irq" 64
    num_irqs = 64 (0x40)
    mmio_size = 33554432 (0x2000000)
    mmio ffffffffffffffff/0000000002000000
  dev: fw_cfg_mem, id ""
    data_width = 8 (0x8)
    dma_enabled = true
    x-file-slots = 32 (0x20)
    mmio 0000000009020008/0000000000000002
    mmio 0000000009020000/0000000000000008
    mmio 0000000009020010/0000000000000008
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a003e00/0000000000000200
    bus: virtio-mmio-bus.31
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a003c00/0000000000000200
    bus: virtio-mmio-bus.30
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a003a00/0000000000000200
    bus: virtio-mmio-bus.29
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a003800/0000000000000200
    bus: virtio-mmio-bus.28
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a003600/0000000000000200
    bus: virtio-mmio-bus.27
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a003400/0000000000000200
    bus: virtio-mmio-bus.26
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a003200/0000000000000200
    bus: virtio-mmio-bus.25
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a003000/0000000000000200
    bus: virtio-mmio-bus.24
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a002e00/0000000000000200
    bus: virtio-mmio-bus.23
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a002c00/0000000000000200
    bus: virtio-mmio-bus.22
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a002a00/0000000000000200
    bus: virtio-mmio-bus.21
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a002800/0000000000000200
    bus: virtio-mmio-bus.20
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a002600/0000000000000200
    bus: virtio-mmio-bus.19
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a002400/0000000000000200
    bus: virtio-mmio-bus.18
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a002200/0000000000000200
    bus: virtio-mmio-bus.17
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a002000/0000000000000200
    bus: virtio-mmio-bus.16
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a001e00/0000000000000200
    bus: virtio-mmio-bus.15
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a001c00/0000000000000200
    bus: virtio-mmio-bus.14
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a001a00/0000000000000200
    bus: virtio-mmio-bus.13
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a001800/0000000000000200
    bus: virtio-mmio-bus.12
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a001600/0000000000000200
    bus: virtio-mmio-bus.11
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a001400/0000000000000200
    bus: virtio-mmio-bus.10
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a001200/0000000000000200
    bus: virtio-mmio-bus.9
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a001000/0000000000000200
    bus: virtio-mmio-bus.8
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a000e00/0000000000000200
    bus: virtio-mmio-bus.7
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a000c00/0000000000000200
    bus: virtio-mmio-bus.6
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a000a00/0000000000000200
    bus: virtio-mmio-bus.5
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a000800/0000000000000200
    bus: virtio-mmio-bus.4
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a000600/0000000000000200
    bus: virtio-mmio-bus.3
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a000400/0000000000000200
    bus: virtio-mmio-bus.2
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a000200/0000000000000200
    bus: virtio-mmio-bus.1
      type virtio-mmio-bus
  dev: virtio-mmio, id ""
    gpio-out "sysbus-irq" 1
    format_transport_address = true
    mmio 000000000a000000/0000000000000200
    bus: virtio-mmio-bus.0
      type virtio-mmio-bus
  dev: gpio-key, id ""
    gpio-in "" 1
    gpio-out "sysbus-irq" 1
  dev: pl061, id ""
    gpio-in "" 8
    gpio-out "" 8
    gpio-out "sysbus-irq" 1
    mmio 0000000009030000/0000000000001000
  dev: gpex-pcihost, id ""
    gpio-out "sysbus-irq" 4
    mmio ffffffffffffffff/0000000010000000
    mmio ffffffffffffffff/ffffffffffffffff
    mmio 000000003eff0000/0000000000010000
    bus: pcie.0
      type PCIE
      dev: virtio-net-pci, id ""
        ioeventfd = true
        vectors = 3 (0x3)
        virtio-pci-bus-master-bug-migration = false
        disable-legacy = "off"
        disable-modern = false
        migrate-extra = true
        modern-pio-notify = false
        x-disable-pcie = false
        page-per-vq = false
        x-ignore-backend-features = false
        ats = false
        x-pcie-deverr-init = true
        x-pcie-lnkctl-init = true
        x-pcie-pm-init = true
        addr = 01.0
        romfile = "efi-virtio.rom"
        rombar = 1 (0x1)
        multifunction = false
        command_serr_enable = true
        x-pcie-lnksta-dllla = true
        x-pcie-extcap-init = true
        class Ethernet controller, addr 00:01.0, pci id 1af4:1000 (sub 1af4:0001)
        bar 0: i/o at 0xffffffffffffffff [0x1e]
        bar 1: mem at 0xffffffffffffffff [0xffe]
        bar 4: mem at 0xffffffffffffffff [0x3ffe]
        bar 6: mem at 0xffffffffffffffff [0x7fffe]
        bus: virtio-bus
          type virtio-pci-bus
          dev: virtio-net-device, id ""
            csum = true
            guest_csum = true
            gso = true
            guest_tso4 = true
            guest_tso6 = true
            guest_ecn = true
            guest_ufo = true
            guest_announce = true
            host_tso4 = true
            host_tso6 = true
            host_ecn = true
            host_ufo = true
            mrg_rxbuf = true
            status = true
            ctrl_vq = true
            ctrl_rx = true
            ctrl_vlan = true
            ctrl_rx_extra = true
            ctrl_mac_addr = true
            ctrl_guest_offloads = true
            mq = false
            mac = "52:54:00:12:34:56"
            vlan = 0
            netdev = "hub0port0"
            x-txtimer = 150000 (0x249f0)
            x-txburst = 256 (0x100)
            tx = ""
            rx_queue_size = 256 (0x100)
            tx_queue_size = 256 (0x100)
            host_mtu = 0 (0x0)
            x-mtu-bypass-backend = true
            indirect_desc = true
            event_idx = true
            notify_on_empty = true
            any_layout = true
            iommu_platform = false
      dev: gpex-root, id ""
        addr = 00.0
        romfile = ""
        rombar = 1 (0x1)
        multifunction = false
        command_serr_enable = true
        x-pcie-lnksta-dllla = true
        x-pcie-extcap-init = true
        class Host bridge, addr 00:00.0, pci id 1b36:0008 (sub 1af4:1100)
  dev: pl031, id ""
    gpio-out "sysbus-irq" 1
    mmio 0000000009010000/0000000000001000
  dev: pl011, id ""
    gpio-out "sysbus-irq" 1
    chardev = "serial0"
    mmio ffffffffffffffff/0000000000001000
  dev: arm-gicv2m, id ""
    gpio-out "sysbus-irq" 64
    base-spi = 48 (0x30)
    num-spi = 64 (0x40)
    mmio 0000000008020000/0000000000001000
  dev: arm_gic, id ""
    gpio-out "sysbus-irq" 4
    gpio-in "" 288
    num-cpu = 1 (0x1)
    num-irq = 288 (0x120)
    revision = 2 (0x2)
    has-security-extensions = false
    mmio 0000000008000000/0000000000001000
    mmio 0000000008010000/0000000000002000
    mmio ffffffffffffffff/0000000000000100
  dev: cfi.pflash01, id ""
    drive = ""
    num-blocks = 256 (0x100)
    sector-length = 262144 (0x40000)
    width = 4 (0x4)
    device-width = 2 (0x2)
    max-device-width = 2 (0x2)
    big-endian = false
    secure = false
    id0 = 137 (0x89)
    id1 = 24 (0x18)
    id2 = 0 (0x0)
    id3 = 0 (0x0)
    name = "virt.flash1"
    old-multiple-chip-handling = false
    mmio ffffffffffffffff/0000000004000000
  dev: cfi.pflash01, id ""
    drive = ""
    num-blocks = 256 (0x100)
    sector-length = 262144 (0x40000)
    width = 4 (0x4)
    device-width = 2 (0x2)
    max-device-width = 2 (0x2)
    big-endian = false
    secure = false
    id0 = 137 (0x89)
    id1 = 24 (0x18)
    id2 = 0 (0x0)
    id3 = 0 (0x0)
    name = "virt.flash0"
    old-multiple-chip-handling = false
    mmio ffffffffffffffff/0000000004000000