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      1 # $NetBSD: MICROVM,v 1.4 2025/08/23 08:48:13 imil Exp $
      2 #
      3 # MICROVM kernel configuration, for use with Qemu microvm machine type
      4 # or Firecracker.
      5 # Stripped-down configuration with no PCI, use VirtIO over MMIO virtual
      6 # bus instead. ACPI is disabled as Firecracker doesn't support it,
      7 # use legacy MP tables instead.
      8 #
      9 # Exemple qemu usage on a Linux host to boot a NetBSD guest:
     10 #
     11 # qemu-system-x86_64							\
     12 # 	-M microvm,x-option-roms=off,rtc=on,acpi=off,pic=off,accel=kvm	\
     13 # 	-m 256 -cpu host,+invtsc -kernel ${KERNEL} 			\
     14 # 	-append "root=ld0a console=com rw -z"				\
     15 # 	-display none -device virtio-blk-device,drive=hd0		\
     16 # 	-drive file=${IMG},format=raw,id=hd0				\
     17 # 	-device virtio-net-device,netdev=net0 				\
     18 # 	-netdev user,id=net0,ipv6=off,hostfwd=::2200-:22		\
     19 # 	-global virtio-mmio.force-legacy=false -serial stdio
     20 
     21 machine amd64 x86 xen
     22 
     23 include         "arch/x86/conf/MICROVM.common"
     24 
     25 options         EXEC_ELF64      # exec ELF binaries
     26