(qemu) info qtree
bus: main-system-bus
  type System
  dev: hpet, id ""
    gpio-in "" 2
    gpio-out "" 1
    gpio-out "sysbus-irq" 32
    timers = 3 (0x3)
    msi = false
    hpet-intcap = 4 (0x4)
    hpet-offset-saved = true
    mmio 00000000fed00000/0000000000000400
  dev: kvm-ioapic, id ""
    gpio-in "" 24
    gsi_base = 0 (0x0)
    mmio 00000000fec00000/0000000000001000
  dev: i440FX-pcihost, id ""
    pci-hole64-size = 2147483648 (2 GiB)
    short_root_bus = 0 (0x0)
    x-pci-hole64-fix = true
    x-config-reg-migration-enabled = true
    bypass-iommu = false
    bus: pci.0
      type PCI
      dev: virtio-9p-pci, id ""
        disable-legacy = "off"
        disable-modern = false
        ioeventfd = true
        vectors = 2 (0x2)
        virtio-pci-bus-master-bug-migration = false
        migrate-extra = true
        modern-pio-notify = false
        x-disable-pcie = false
        page-per-vq = false
        x-ignore-backend-features = false
        ats = false
        x-ats-page-aligned = true
        x-pcie-deverr-init = true
        x-pcie-lnkctl-init = true
        x-pcie-pm-init = true
        x-pcie-flr-init = true
        aer = false
        addr = 06.0
        romfile = ""
        romsize = 4294967295 (0xffffffff)
        rombar = 1 (0x1)
        multifunction = false
        x-pcie-lnksta-dllla = true
        x-pcie-extcap-init = true
        failover_pair_id = ""
        acpi-index = 0 (0x0)
        class Class 0002, addr 00:06.0, pci id 1af4:1009 (sub 1af4:0009)
        bar 0: i/o at 0xc0c0 [0xc0df]
        bar 1: mem at 0xfebf6000 [0xfebf6fff]
        bar 4: mem at 0xfe004000 [0xfe007fff]
        bus: virtio-bus
          type virtio-pci-bus
          dev: virtio-9p-device, id ""
            mount_tag = "host0"
            fsdev = "host0"
            indirect_desc = true
            event_idx = true
            notify_on_empty = true
            any_layout = true
            iommu_platform = false
            packed = false
            use-started = true
            use-disabled-flag = true
            x-disable-legacy-check = false
      dev: virtio-blk-pci, id ""
        disable-legacy = "off"
        disable-modern = false
        class = 0 (0x0)
        ioeventfd = true
        vectors = 3 (0x3)
        virtio-pci-bus-master-bug-migration = false
        migrate-extra = true
        modern-pio-notify = false
        x-disable-pcie = false
        page-per-vq = false
        x-ignore-backend-features = false
        ats = false
        x-ats-page-aligned = true
        x-pcie-deverr-init = true
        x-pcie-lnkctl-init = true
        x-pcie-pm-init = true
        x-pcie-flr-init = true
        aer = false
        addr = 05.0
        romfile = ""
        romsize = 4294967295 (0xffffffff)
        rombar = 1 (0x1)
        multifunction = false
        x-pcie-lnksta-dllla = true
        x-pcie-extcap-init = true
        failover_pair_id = ""
        acpi-index = 0 (0x0)
        class SCSI controller, addr 00:05.0, pci id 1af4:1001 (sub 1af4:0002)
        bar 0: i/o at 0xc000 [0xc07f]
        bar 1: mem at 0xfebf5000 [0xfebf5fff]
        bar 4: mem at 0xfe000000 [0xfe003fff]
        bus: virtio-bus
          type virtio-pci-bus
          dev: virtio-blk-device, id ""
            drive = "nvme2"
            backend_defaults = "auto"
            logical_block_size = 512 (512 B)
            physical_block_size = 512 (512 B)
            min_io_size = 0 (0 B)
            opt_io_size = 0 (0 B)
            discard_granularity = 4294967295 (4 GiB)
            write-cache = "auto"
            share-rw = false
            rerror = "auto"
            werror = "auto"
            cyls = 203 (0xcb)
            heads = 16 (0x10)
            secs = 63 (0x3f)
            lcyls = 0 (0x0)
            lheads = 0 (0x0)
            lsecs = 0 (0x0)
            serial = ""
            config-wce = true
            scsi = false
            request-merging = true
            num-queues = 2 (0x2)
            queue-size = 256 (0x100)
            seg-max-adjust = true
            discard = true
            report-discard-granularity = true
            write-zeroes = true
            max-discard-sectors = 4194303 (0x3fffff)
            max-write-zeroes-sectors = 4194303 (0x3fffff)
            x-enable-wce-if-config-wce = true
            indirect_desc = true
            event_idx = true
            notify_on_empty = true
            any_layout = true
            iommu_platform = false
            packed = false
            use-started = true
            use-disabled-flag = true
            x-disable-legacy-check = false
      dev: nvme, id ""
        drive = "nvme1"
        backend_defaults = "auto"
        logical_block_size = 512 (512 B)
        physical_block_size = 512 (512 B)
        min_io_size = 0 (0 B)
        opt_io_size = 0 (0 B)
        discard_granularity = 4096 (4 KiB)
        write-cache = "auto"
        share-rw = false
        serial = "foo"
        cmb_size_mb = 0 (0x0)
        num_queues = 0 (0x0)
        max_ioqpairs = 64 (0x40)
        msix_qsize = 65 (0x41)
        aerl = 3 (0x3)
        aer_max_queued = 64 (0x40)
        mdts = 7 (0x7)
        vsl = 7 (0x7)
        use-intel-id = false
        legacy-cmb = false
        zoned.zasl = 0 (0x0)
        zoned.auto_transition = true
        addr = 04.0
        romfile = ""
        romsize = 4294967295 (0xffffffff)
        rombar = 1 (0x1)
        multifunction = false
        x-pcie-lnksta-dllla = true
        x-pcie-extcap-init = true
        failover_pair_id = ""
        acpi-index = 0 (0x0)
        class Class 0108, addr 00:04.0, pci id 1b36:0010 (sub 1af4:1100)
        bar 0: mem at 0xfebf0000 [0xfebf3fff]
        bus: nvme-bus.0
          type nvme-bus
      dev: PIIX4_PM, id ""
        smb_io_base = 1792 (0x700)
        disable_s3 = 0 (0x0)
        disable_s4 = 0 (0x0)
        s4_val = 2 (0x2)
        acpi-pci-hotplug-with-bridge-support = true
        acpi-root-pci-hotplug = true
        memory-hotplug-support = true
        smm-compat = false
        addr = 01.3
        romfile = ""
        romsize = 4294967295 (0xffffffff)
        rombar = 1 (0x1)
        multifunction = false
        x-pcie-lnksta-dllla = true
        x-pcie-extcap-init = true
        failover_pair_id = ""
        acpi-index = 0 (0x0)
        class Bridge, addr 00:01.3, pci id 8086:7113 (sub 1af4:1100)
        bus: i2c
          type i2c-bus
          dev: smbus-eeprom, id ""
            address = 87 (0x57)
          dev: smbus-eeprom, id ""
            address = 86 (0x56)
          dev: smbus-eeprom, id ""
            address = 85 (0x55)
          dev: smbus-eeprom, id ""
            address = 84 (0x54)
          dev: smbus-eeprom, id ""
            address = 83 (0x53)
          dev: smbus-eeprom, id ""
            address = 82 (0x52)
          dev: smbus-eeprom, id ""
            address = 81 (0x51)
          dev: smbus-eeprom, id ""
            address = 80 (0x50)
      dev: piix3-ide, id ""
        addr = 01.1
        romfile = ""
        romsize = 4294967295 (0xffffffff)
        rombar = 1 (0x1)
        multifunction = false
        x-pcie-lnksta-dllla = true
        x-pcie-extcap-init = true
        failover_pair_id = ""
        acpi-index = 0 (0x0)
        class IDE controller, addr 00:01.1, pci id 8086:7010 (sub 1af4:1100)
        bar 4: i/o at 0xc0e0 [0xc0ef]
        bus: ide.1
          type IDE
          dev: ide-cd, id ""
            drive = "ide1-cd0"
            backend_defaults = "auto"
            logical_block_size = 512 (512 B)
            physical_block_size = 512 (512 B)
            min_io_size = 0 (0 B)
            opt_io_size = 0 (0 B)
            discard_granularity = 512 (512 B)
            write-cache = "auto"
            share-rw = false
            rerror = "auto"
            werror = "auto"
            ver = "2.5+"
            wwn = 0 (0x0)
            serial = "QM00003"
            model = ""
            unit = 0 (0x0)
        bus: ide.0
          type IDE
          dev: ide-hd, id ""
            drive = "ide0-hd0"
            backend_defaults = "auto"
            logical_block_size = 512 (512 B)
            physical_block_size = 512 (512 B)
            min_io_size = 0 (0 B)
            opt_io_size = 0 (0 B)
            discard_granularity = 512 (512 B)
            write-cache = "auto"
            share-rw = false
            rerror = "auto"
            werror = "auto"
            ver = "2.5+"
            wwn = 0 (0x0)
            serial = "QM00001"
            model = ""
            cyls = 16383 (0x3fff)
            heads = 16 (0x10)
            secs = 63 (0x3f)
            lcyls = 0 (0x0)
            lheads = 0 (0x0)
            lsecs = 0 (0x0)
            bios-chs-trans = "lba"
            rotation_rate = 0 (0x0)
            unit = 0 (0x0)
      dev: e1000, id ""
        mac = "52:54:00:12:34:56"
        netdev = "hub0port0"
        autonegotiation = true
        mitigation = true
        extra_mac_registers = true
        migrate_tso_props = true
        init-vet = true
        addr = 03.0
        romfile = "efi-e1000.rom"
        romsize = 262144 (0x40000)
        rombar = 1 (0x1)
        multifunction = false
        x-pcie-lnksta-dllla = true
        x-pcie-extcap-init = true
        failover_pair_id = ""
        acpi-index = 0 (0x0)
        class Ethernet controller, addr 00:03.0, pci id 8086:100e (sub 1af4:1100)
        bar 0: mem at 0xfebc0000 [0xfebdffff]
        bar 1: i/o at 0xc080 [0xc0bf]
        bar 6: mem at 0xffffffffffffffff [0x3fffe]
      dev: VGA, id ""
        vgamem_mb = 16 (0x10)
        mmio = true
        qemu-extended-regs = true
        edid = true
        xres = 1024 (0x400)
        yres = 768 (0x300)
        xmax = 0 (0x0)
        ymax = 0 (0x0)
        refresh_rate = 0 (0x0)
        global-vmstate = false
        addr = 02.0
        romfile = "vgabios-stdvga.bin"
        romsize = 65536 (0x10000)
        rombar = 1 (0x1)
        multifunction = false
        x-pcie-lnksta-dllla = true
        x-pcie-extcap-init = true
        failover_pair_id = ""
        acpi-index = 0 (0x0)
        class VGA controller, addr 00:02.0, pci id 1234:1111 (sub 1af4:1100)
        bar 0: mem at 0xfd000000 [0xfdffffff]
        bar 2: mem at 0xfebf4000 [0xfebf4fff]
        bar 6: mem at 0xffffffffffffffff [0xfffe]
      dev: PIIX3, id ""
        addr = 01.0
        romfile = ""
        romsize = 4294967295 (0xffffffff)
        rombar = 1 (0x1)
        multifunction = true
        x-pcie-lnksta-dllla = true
        x-pcie-extcap-init = true
        failover_pair_id = ""
        acpi-index = 0 (0x0)
        class ISA bridge, addr 00:01.0, pci id 8086:7000 (sub 1af4:1100)
        bus: isa.0
          type ISA
          dev: isa-debugcon, id ""
            iobase = 1026 (0x402)
            chardev = "seabios"
            readback = 233 (0xe9)
          dev: port92, id ""
            gpio-out "a20" 1
          dev: vmmouse, id ""
          dev: vmport, id ""
            x-read-set-eax = true
            x-signal-unsupported-cmd = true
            x-report-vmx-type = true
            x-cmds-v2 = true
            vmware-vmx-version = 6 (0x6)
            vmware-vmx-type = 2 (0x2)
          dev: i8042, id ""
            gpio-out "a20" 1
            extended-state = true
            kbd-throttle = false
            isa irqs 1,12
          dev: isa-fdc, id ""
            iobase = 1008 (0x3f0)
            irq = 6 (0x6)
            dma = 2 (0x2)
            fdtypeA = "auto"
            fdtypeB = "auto"
            fallback = "288"
            isa irq 6
            bus: floppy-bus.0
              type floppy-bus
              dev: floppy, id ""
                unit = 0 (0x0)
                drive = "floppy0"
                backend_defaults = "auto"
                logical_block_size = 512 (512 B)
                physical_block_size = 512 (512 B)
                min_io_size = 0 (0 B)
                opt_io_size = 0 (0 B)
                discard_granularity = 4294967295 (4 GiB)
                write-cache = "auto"
                share-rw = false
                drive-type = "288"
          dev: isa-parallel, id ""
            index = 0 (0x0)
            iobase = 888 (0x378)
            irq = 7 (0x7)
            chardev = "parallel0"
            isa irq 7
          dev: isa-serial, id ""
            index = 0 (0x0)
            iobase = 1016 (0x3f8)
            irq = 4 (0x4)
            isa irq 4
          dev: i8257, id ""
            base = 192 (0xc0)
            page-base = 136 (0x88)
            pageh-base = -1 (0xffffffffffffffff)
            dshift = 1 (0x1)
          dev: i8257, id ""
            base = 0 (0x0)
            page-base = 128 (0x80)
            pageh-base = -1 (0xffffffffffffffff)
            dshift = 0 (0x0)
          dev: isa-pcspk, id ""
            audiodev = ""
            iobase = 97 (0x61)
            migrate = true
          dev: kvm-pit, id ""
            gpio-in "" 1
            iobase = 64 (0x40)
            lost_tick_policy = "delay"
          dev: mc146818rtc, id ""
            gpio-out "" 1
            base_year = 0 (0x0)
            lost_tick_policy = "discard"
          dev: kvm-i8259, id ""
            iobase = 160 (0xa0)
            elcr_addr = 1233 (0x4d1)
            elcr_mask = 222 (0xde)
            master = false
          dev: kvm-i8259, id ""
            iobase = 32 (0x20)
            elcr_addr = 1232 (0x4d0)
            elcr_mask = 248 (0xf8)
            master = true
      dev: i440FX, id ""
        addr = 00.0
        romfile = ""
        romsize = 4294967295 (0xffffffff)
        rombar = 1 (0x1)
        multifunction = false
        x-pcie-lnksta-dllla = true
        x-pcie-extcap-init = true
        failover_pair_id = ""
        acpi-index = 0 (0x0)
        class Host bridge, addr 00:00.0, pci id 8086:1237 (sub 1af4:1100)
  dev: fw_cfg_io, id ""
    dma_enabled = true
    x-file-slots = 32 (0x20)
    acpi-mr-restore = true
  dev: kvmclock, id ""
    x-mach-use-reliable-get-clock = true
  dev: kvmvapic, id ""