qemu-nfit.sh

#!/bin/bash -x
#qemu=qemu-kvm
qemu=$HOME/git/qemu/build/x86_64-softmmu/qemu-system-x86_64
kernel=/var/lib/libvirt/images/kernels/bzImage
initrd=$HOME/initramfs-nfs-4.17.img
mem=$HOME/mem
label_size=$((128*1024))
mem_size=$((31 << 30))
IMAGE=$HOME/ahci.img

kvm=(
	$qemu
        -enable-kvm
        -cpu kvm64
        -kernel $kernel
	-initrd $initrd
        -m 16G,slots=4,maxmem=512G

	-machine pc-i440fx-2.4,accel=kvm,usb=off,vmport=off,nvdimm
	-cpu SandyBridge
        -smp 40
	-netdev tap,id=hostnet0,ifname=tap0,script=no,downscript=no
	-device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:b7:a1:ad,bus=pci.0,addr=0x7
	-object memory-backend-file,id=mem1,share,mem-path=${mem}1,size=$((mem_size+label_size))
	-device nvdimm,memdev=mem1,id=nv1,label-size=${label_size}

	-object memory-backend-file,id=mem2,share,mem-path=${mem}2,size=$((mem_size+label_size))
	-device nvdimm,memdev=mem2,id=nv2,label-size=${label_size}
	-numa node
	-numa node
	-device ahci,id=sata0,bus=pci.0,addr=0x8
	-drive file=$IMAGE,if=none,id=drive-sata0-0-0,format=raw
	-device ide-hd,bus=sata0.0,drive=drive-sata0-0-0,id=sata0-0-0
	-boot order=nc
        -no-reboot
        -watchdog i6300esb
        -rtc base=localtime
        -serial stdio
        -display none
        -monitor null
)


append=(
	root=/dev/nfs
	ip=dhcp
        earlyprintk=ttyS0,115200
	console=ttyS0,115200
	console=tty0
	ignore_loglevel
	sysrq_always_enabled
	selinux=0
	#oops=panic
	#panic=5
	#nmi_watchdog=panic
        #hung_task_panic=1
	#softlockup_panic=1
	ftrace_dump_on_oops
	#ahci_remap.dyndbg
	#memmap=4G!0x1fc000000
	memmap=4G!8G
	#memmap=4G!0x210000000
	#memmap=12G!4G
	#nokaslr
	#memmap=0xFC000000!8G
	#devres.log=1
	#libnvdimm.dyndbg="+fp"
	#nfit_test.dyndbg
	#nfit.dyndbg
	nd_pmem.dyndbg
	#nd_btt.dyndbg
	#modprobe.blacklist=nd_pmem
	dax.dyndbg="+fp"
	libnvdimm.dyndbg=\"func nvdimm_bus_probe +fp\"
	#nd_pmem.probe_delay=30
	#dax_pmem.dyndbg="+fp"
	#device_dax.dyndbg="+fp"
	slub_debug=FZP
	#dyndbg="file fs/dax.c +p"
	dyndbg=\"func split_mem_range +fp\"
	dyndbg=\"func devm_memremap_pages +p\"
	dyndbg=\"func memmap_sync +p\"
	dyndbg=\"func memmap_init_async +p\"
	dyndbg=\"func arch_add_memory +p\"
	printk.devkmsg=on
	#systemd.log_level=debug
	#systemd.log_target=console 
	rw
)

"${kvm[@]}" --append "${append[*]}"