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qemu-system-x86_64 -name guest=cvd-1,debug-threads=on -machine pc,nvdimm=on,accel=kvm,usb=off,dump-guest-core=off -m size=4096M,maxmem=4102M,slots=2 -overcommit mem-lock=off -smp 2,cores=2,threads=1 -uuid 699acfc4-c8c4-11e7-882b-5065f31dc101 -no-user-config -nodefaults -no-shutdown -rtc base=utc -boot strict=on -chardev socket,id=charmonitor,path=/tmp/cf_avd_1000/cvd-1/internal/qemu_monitor.sock,server=on,wait=off -mon chardev=charmonitor,id=monitor,mode=control -display egl-headless -vnc 127.0.0.1:544 -device pcie-pci-bridge,id=hvc-bridge,addr=01.2 -device virtio-gpu-gl-pci,id=gpu0,xres=720,yres=1280 -chardev file,id=serial0,path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/internal/kernel-log-pipe,append=on -serial chardev:serial0 -chardev file,id=hvc0,path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/internal/kernel-log-pipe,append=on -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial0,bus=hvc-bridge,addr=01 -device virtconsole,bus=virtio-serial0.0,chardev=hvc0 -chardev null,id=hvc1 -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial1,bus=hvc-bridge,addr=02 -device virtconsole,bus=virtio-serial1.0,chardev=hvc1 -chardev file,id=hvc2,path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/internal/logcat-pipe,append=on -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial2,bus=hvc-bridge,addr=03 -device virtconsole,bus=virtio-serial2.0,chardev=hvc2 -chardev pipe,id=hvc3,path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/internal/keymaster_fifo_vm -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial3,bus=hvc-bridge,addr=04 -device virtconsole,bus=virtio-serial3.0,chardev=hvc3 -chardev pipe,id=hvc4,path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/internal/gatekeeper_fifo_vm -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial4,bus=hvc-bridge,addr=05 -device virtconsole,bus=virtio-serial4.0,chardev=hvc4 -chardev pipe,id=hvc5,path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/internal/bt_fifo_vm -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial5,bus=hvc-bridge,addr=06 -device virtconsole,bus=virtio-serial5.0,chardev=hvc5 -chardev pipe,id=hvc6,path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/internal/gnsshvc_fifo_vm -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial6,bus=hvc-bridge,addr=07 -device virtconsole,bus=virtio-serial6.0,chardev=hvc6 -chardev pipe,id=hvc7,path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/internal/locationhvc_fifo_vm -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial7,bus=hvc-bridge,addr=08 -device virtconsole,bus=virtio-serial7.0,chardev=hvc7 -chardev null,id=hvc8 -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial8,bus=hvc-bridge,addr=09 -device virtconsole,bus=virtio-serial8.0,chardev=hvc8 -chardev pipe,id=hvc9,path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/internal/uwb_fifo_vm -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial9,bus=hvc-bridge,addr=0a -device virtconsole,bus=virtio-serial9.0,chardev=hvc9 -chardev pipe,id=hvc10,path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/internal/oemlock_fifo_vm -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial10,bus=hvc-bridge,addr=0b -device virtconsole,bus=virtio-serial10.0,chardev=hvc10 -chardev pipe,id=hvc11,path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/internal/keymint_fifo_vm -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial11,bus=hvc-bridge,addr=0c -device virtconsole,bus=virtio-serial11.0,chardev=hvc11 -chardev pipe,id=hvc12,path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/internal/nfc_fifo_vm -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial12,bus=hvc-bridge,addr=0d -device virtconsole,bus=virtio-serial12.0,chardev=hvc12 -chardev null,id=hvc13 -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial13,bus=hvc-bridge,addr=0e -device virtconsole,bus=virtio-serial13.0,chardev=hvc13 -chardev null,id=hvc14 -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial14,bus=hvc-bridge,addr=0f -device virtconsole,bus=virtio-serial14.0,chardev=hvc14 -chardev null,id=hvc15 -device virtio-serial-pci-non-transitional,max_ports=1,id=virtio-serial15,bus=hvc-bridge,addr=10 -device virtconsole,bus=virtio-serial15.0,chardev=hvc15 -drive file=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/overlay.img,if=none,id=drive-virtio-disk0,aio=threads -device virtio-blk-pci-non-transitional,scsi=off,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/persistent_composite_overlay.img,if=none,id=drive-virtio-disk1,aio=threads -device virtio-blk-pci-non-transitional,scsi=off,drive=drive-virtio-disk1,id=virtio-disk1 -drive file=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/sdcard_overlay.img,if=none,id=drive-virtio-disk2,aio=threads -device virtio-blk-pci-non-transitional,scsi=off,drive=drive-virtio-disk2,id=virtio-disk2 -object memory-backend-file,id=objpmem0,share=on,mem-path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/pstore,size=2097152 -device nvdimm,memdev=objpmem0,id=ramoops -object memory-backend-file,id=objpmem1,share=on,mem-path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/access-kregistry,size=2097152 -device virtio-pmem-pci,disable-legacy=on,memdev=objpmem1,id=pmem0 -object memory-backend-file,id=objpmem2,share=on,mem-path=/home/leoy/Dev2/aosp_cuttlefish_test/cf/cuttlefish/instances/cvd-1/hwcomposer-pmem,size=2097152 -device virtio-pmem-pci,disable-legacy=on,memdev=objpmem2,id=pmem1 -object rng-random,id=objrng0,filename=/dev/urandom -device virtio-rng-pci-non-transitional,rng=objrng0,id=rng0,max-bytes=1024,period=2000 -device virtio-mouse-pci,disable-legacy=on -device virtio-keyboard-pci,disable-legacy=on -device virtio-keyboard-pci,disable-legacy=on -device virtio-balloon-pci-non-transitional,id=balloon0 -netdev tap,id=hostnet0,ifname=cvd-mtap-01,script=no,downscript=no -netdev tap,id=hostnet1,ifname=cvd-etap-01,script=no,downscript=no -device virtio-net-pci-non-transitional,netdev=hostnet0,id=net0,mac=00:1a:11:e0:cf:00 -device virtio-net-pci-non-transitional,netdev=hostnet1,id=net1,mac=00:1a:11:e1:cf:00 -cpu host -msg timestamp=on -device vhost-vsock-pci-non-transitional,guest-cid=3 -device AC97,audiodev=audio_none -audiodev driver=none,id=audio_none -device qemu-xhci,id=xhci -bios /home/leoy/Dev2/aosp_cuttlefish_test/cf/etc/bootloader_x86_64/bootloader.qemu |
Let’s look into these parameters:-name guest=cvd-1,debug-threads=on : Set the name of the guest as cvd-1 and enable debug-threads so individual threads have dedicated names.
-machine pc,nvdimm=on,accel=kvm,usb=off,dump-guest-core=off : a standard PC architecture and enables NVDIMM support, enables KVM accelerator, doesn’t include guest memory in a core dump, disables USB support.
-m size=4096M,maxmem=4102M,slots=2 : Sets guest startup RAM size to 4096MB. Set amount of hotpluggable memory slots as 2 and maximum amount of memory 4102MB.
-overcommit mem-lock=off : Disable memory locking (so can be swapped to swap area).
-uuid 699acfc4-c8c4-11e7-882b-5065f31dc101 : Set virtual system UUID.
-no-user-config : Don’t load any of the user-provided config files on sysconfdir.
-nodefaults : Don’t create default devices.
-no-shutdown : Don’t exit QEMU on guest shutdown.
-smp 2,cores=2,threads=1 : 2 virtual CPUs, and each CPU is part of a 2-core socket with one thread per core.