1# $NetBSD: MICROVM,v 1.5 2025/12/05 17:58:11 khorben 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
21machine amd64 x86 xen
22
23include         "arch/x86/conf/MICROVM.common"
24
25options         EXEC_ELF64      # exec ELF binaries
26options 	MODULAR		# new style module(7) framework
27
28options 	MEMORY_DISK_HOOKS	# enable md specific hooks
29options 	MEMORY_DISK_DYNAMIC	# enable dynamic resizing
30