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	|  df90457cf5 When building the 'microvm' machine stand-alone we get:
  $ qemu-system-x86_64 -M microvm
  **
  ERROR:qom/object.c:714:object_new_with_type: assertion failed: (type != NULL)
  Bail out! ERROR:qom/object.c:714:object_new_with_type: assertion failed: (type != NULL)
  Aborted (core dumped)
Looking at the backtrace:
  (gdb) bt
  #3  0x00007ff2330492ff in g_assertion_message_expr () at /lib64/libglib-2.0.so.0
  #4  0x000055a878c18341 in object_new_with_type (type=<optimized out>) at qom/object.c:714
  #5  0x000055a878c18399 in object_new (typename=typename@entry=0x55a878dec36a "isa-pit") at qom/object.c:747
  #6  0x000055a878cc8146 in qdev_new (name=name@entry=0x55a878dec36a "isa-pit") at hw/core/qdev.c:153
  #7  0x000055a878a8b439 in isa_new (name=name@entry=0x55a878dec36a "isa-pit") at hw/isa/isa-bus.c:160
  #8  0x000055a878adb782 in i8254_pit_init (base=64, isa_irq=0, alt_irq=0x0, bus=0x55a87ab38760) at include/hw/timer/i8254.h:54
  #9  microvm_devices_init (mms=0x55a87ac36800) at hw/i386/microvm.c:263
  #10 microvm_machine_state_init (machine=<optimized out>) at hw/i386/microvm.c:471
  #11 0x000055a878a944ab in machine_run_board_init (machine=machine@entry=0x55a87ac36800) at hw/core/machine.c:1239
The "isa-pit" type (TYPE_I8254) is missing. Add it.
Fixes:  | ||
|---|---|---|
| .. | ||
| kvm | ||
| xen | ||
| acpi-build.c | ||
| acpi-build.h | ||
| acpi-common.c | ||
| acpi-common.h | ||
| acpi-microvm.c | ||
| acpi-microvm.h | ||
| amd_iommu.c | ||
| amd_iommu.h | ||
| e820_memory_layout.c | ||
| e820_memory_layout.h | ||
| fw_cfg.c | ||
| fw_cfg.h | ||
| generic_event_device_x86.c | ||
| intel_iommu_internal.h | ||
| intel_iommu.c | ||
| Kconfig | ||
| kvmvapic.c | ||
| meson.build | ||
| microvm.c | ||
| multiboot.c | ||
| multiboot.h | ||
| pc_piix.c | ||
| pc_q35.c | ||
| pc_sysfw_ovmf-stubs.c | ||
| pc_sysfw_ovmf.c | ||
| pc_sysfw.c | ||
| pc.c | ||
| port92.c | ||
| trace-events | ||
| trace.h | ||
| vmmouse.c | ||
| vmport.c | ||
| x86-iommu-stub.c | ||
| x86-iommu.c | ||
| x86.c | ||