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QEMU systemd/SSH
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| qemu-system-x86_64(16858) threads: | |
| {qemu-system-x86}(16859): 0-3,24-27 | |
| {IO io1}(16860): 0-3,24-27 | |
| {IO mon_iothread}(16872): 0-3,24-27 | |
| {CPU 0/KVM}(16873): 4 | |
| {CPU 1/KVM}(16874): 28 | |
| {CPU 2/KVM}(16875): 5 | |
| {CPU 3/KVM}(16876): 29 | |
| {CPU 4/KVM}(16877): 6 | |
| {CPU 5/KVM}(16878): 30 | |
| {CPU 6/KVM}(16879): 7 | |
| {CPU 7/KVM}(16880): 31 | |
| {CPU 8/KVM}(16881): 8 | |
| {CPU 9/KVM}(16882): 32 | |
| {CPU 10/KVM}(16883): 9 | |
| {CPU 11/KVM}(16884): 33 | |
| {CPU 12/KVM}(16885): 10 | |
| {CPU 13/KVM}(16886): 34 | |
| {CPU 14/KVM}(16887): 11 | |
| {CPU 15/KVM}(16888): 35 | |
| {worker}(27836): 0-3,24-27 | |
| {worker}(27842): 0-3,24-27 | |
| {worker}(27878): 0-3,24-27 | |
| {worker}(27879): 0-3,24-27 | |
| {worker}(27880): 0-3,24-27 | |
| {worker}(27881): 0-3,24-27 | |
| {worker}(27882): 0-3,24-27 |
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| /usr/sbin/qemu-system-x86_64 \ | |
| -name seat1,debug-threads=on -daemonize -pidfile /run/qemu_seat1.pid -monitor unix:/tmp/seat1.sock,server,nowait -nodefconfig -debugcon file:/var/log/qemu@seat1-debugcon.log -global isa-debugcon.iobase=0x402 \ | |
| -nodefconfig -no-user-config -nodefaults -nographic \ | |
| -machine q35,accel=kvm \ | |
| -enable-kvm -cpu host,kvm=off,hv_spinlocks=0x1fff,hv_relaxed,hv_time,hv_vendor_id=Nvidia43FIX \ | |
| -rtc base=localtime,clock=host,driftfix=slew \ | |
| -mem-path /dev/hugepages \ | |
| -drive file=/tank/fw/active/OVMF-pure-efi.fd,if=pflash,format=raw,unit=0,readonly=on\ | |
| -object iothread,id=io1 \ | |
| -m 8192 \ | |
| -smp cores=8,threads=2,sockets=1 \ | |
| -drive file=/home/adam/win10-OVMF_VARS.fd,if=pflash,format=raw,unit=1 \ | |
| -device virtio-scsi-pci,id=scsi0,ioeventfd=on,iothread=io1,num_queues=4 \ | |
| -drive id=disk0,file=/tank/vm/adam-win10.qcow2,format=qcow2,cache=writeback,readonly=off,if=none \ | |
| -device scsi-hd,drive=disk0,bus=scsi0.0 \ | |
| -netdev bridge,id=netdev0,br=br0 -device virtio-net-pci,netdev=netdev0,mac=52:54:00:12:34:57 \ | |
| -device vfio-pci,host=08:00.0,addr=0x6,multifunction=on -device vfio-pci,host=08:00.1,addr=0x6.0x1 \ | |
| -device vfio-pci,host=03:00.0 -device vfio-pci,host=04:00.0 \ | |
| -drive id=disk2,file=/dev/disk/by-id/ata-Hitachi_HDS723020BLA642_MN1270FA12SE0D,format=raw,readonly=off,if=none,aio=native,cache=none,cache.direct=on \ | |
| -device scsi-hd,drive=disk2,bus=scsi0.0 \ | |
| -drive id=disk3,file="iscsi://192.168.3.1/iqn.2000-01.com.zegelin:adam-win10/0",format=raw,readonly=off,if=none \ | |
| -device scsi-hd,drive=disk3,bus=scsi0.0 \ | |
| -drive id=disk4,file="iscsi://192.168.3.1/iqn.2000-01.com.zegelin:adam-win10/1",format=raw,readonly=off,if=none \ | |
| -device scsi-hd,drive=disk4,bus=scsi0.0 \ | |
| -drive id=disk5,file="iscsi://192.168.3.1/iqn.2000-01.com.zegelin:adam-win10/2",format=raw,readonly=off,if=none \ | |
| -device scsi-hd,drive=disk5,bus=scsi0.0 \ | |
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| [Unit] | |
| Description=QEMU virtual machine (%i) | |
| [Service] | |
| Type=forking | |
| PIDFile=/run/qemu_%i.pid | |
| Environment=QEMU_AUDIO_DRV=pa | |
| EnvironmentFile=/etc/conf.d/qemu.d/%i/* | |
| ExecStart=/usr/bin/qemu-system-x86_64 -name %i,debug-threads=on -daemonize -pidfile /run/qemu_%i.pid -monitor unix:/tmp/%i.sock,server,nowait -nodefconfig -debugcon file:/var/log/qemu@%i-debugcon.log -global isa-debugcon.iobase=0x402 $common_args $args | |
| ExecStop=/bin/sh -c 'while test -d /proc/$MAINPID; do /usr/bin/echo system_powerdown | /usr/bin/socat - UNIX-CONNECT:/tmp/%i.sock; sleep 60; done' | |
| TimeoutStopSec=1m | |
| [Install] | |
| WantedBy=multi-user.target |
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| [Service] | |
| CPUSchedulingPolicy=rr | |
| ExecStartPost=/bin/sh -c 'exec /usr/bin/qemu-affinity $MAINPID -p 0-3,24-27 -i *:0-3,24-27 -q 0-3,24-27 -w *:0-3,24-27 -k 4 28 5 29 6 30 7 31 8 32 9 33 10 34 11 35' |
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Regarding the qemu@.service, I'd like to suggest the following mod:
ExecStop=/bin/sh -c '/usr/bin/echo system_powerdown | /usr/bin/socat - UNIX-CONNECT:/tmp/%i.sock; while test -d /proc/$MAINPID; do sleep 2; done'
I,e,: send the system_powerdown command just once, then keep watching the PID in a "not very tight" loop - just wait for the PID to die, and only then return from the ExecStop action.
In the original version, the loop sends the system_powerdown command and then sleeps no less than a minute, before trying again.
Also, you might wish to increase the TimeoutStopExec to something more than just a minute - some guests may take longer to shut down. But this is probably something that anyone could figure out, eventually.
Thanks for this cool piece. Has saved me quite some time.