There are two docs: https://wiki.qemu.org/index.php/Documentation/QMP
https://en.wikibooks.org/wiki/QEMU/Monitor I don't know which one is right...? 2017-09-04 20:31 GMT+08:00 Sam <batmanu...@gmail.com>: > Thank you, but I have to ask last question. My qemu is 2.6.0, and there is > no -qmp option : > > [root@yf-mos-test-net09 ~]# ps aux | grep qemu >> root 5714 0.0 0.0 1669388 77736 ? Sl Sep01 0:09 >> /usr/local/bin/qemu-system-x86_64_2.6.0 -enable-kvm -cpu >> qemu64,+vmx,+ssse3,+sse4.1,+sse4.2,+x2apic,+aes,+avx,+vme, >> +pat,+ss,+pclmulqdq,+xsave,level=13 -machine pc,accel=kvm -chardev >> socket,id=hmqmondev,port=55919,host=127.0.0.1,nodelay,server,nowait -mon >> chardev=hmqmondev,id=hmqmon,mode=readline -rtc >> base=utc,clock=host,driftfix=none -usb -device usb-tablet -daemonize >> -nodefaults -nodefconfig -no-kvm-pit-reinjection -global >> kvm-pit.lost_tick_policy=discard -vga std -k en-us -smp 1 -name >> mvs5-huanghuai -m 1024 -boot order=cdn -vnc :19,password -drive >> file=/opt/cloud/workspace/disks/4a5148da-e34e-4c81-aada- >> 12a247c0337e,if=none,id=drive_0,format=qcow2,cache=none,aio=native >> -device virtio-blk-pci,id=dev_drive_0,drive=drive_0,bus=pci.0,addr=0x5 >> -drive file=/opt/cloud/workspace/disks/08eb3f72-07ba-44e9-8ee9- >> 4ab662dbbd1f,if=none,id=drive_1,format=qcow2,cache=none,aio=native >> -device virtio-blk-pci,id=dev_drive_1,drive=drive_1,bus=pci.0,addr=0x6 >> -device ide-cd,drive=ide0-cd0,bus=ide.1,unit=1 -drive >> id=ide0-cd0,media=cdrom,if=none -chardev socket,id=char-n-f879ac2f, >> path=/usr/local/var/run/openvswitch/n-f879ac2f,server -netdev >> type=vhost-user,id=n-f879ac2f,chardev=char-n-f879ac2f,vhostforce=on >> -device virtio-net-pci,netdev=n-f879ac2f,mac=00:22:f8:79:ac: >> 2f,id=netdev-n-f879ac2f,addr=0xf -object memory-backend-file,id=mem, >> size=1024M,mem-path=/dev/hugepages,share=on -numa node,memdev=mem >> -mem-prealloc -pidfile /opt/cloud/workspace/servers/ >> 63ef2ec4-556f-47ea-93e0-23089bb59be5/pid -chardev socket,path=/opt/cloud/ >> workspace/servers/63ef2ec4-556f-47ea-93e0-23089bb59be5/qga.sock,server,nowait,id=qga0 >> -device virtio-serial -device >> virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 >> -incoming tcp:0:8081 > > > After I use telnet like this `telnet localhost 55919`, then enter this > cmd line: > > [root@yf-mos-test-net09 ~]# telnet localhost 55919 >> Trying ::1... >> telnet: connect to address ::1: Connection refused >> Trying 127.0.0.1... >> Connected to localhost. >> Escape character is '^]'. >> QEMU 2.6.0 monitor - type 'help' for more information >> (qemu) help >> help >> acl_add aclname match allow|deny [index] -- add a match rule to the >> access control list >> ... >> xp /fmt addr -- physical memory dump starting at 'addr' >> (qemu) >> (qemu) > > (qemu) {"execute":"query-status"} >> {"execute":"query-status"} >> unknown command: '{"execute":"query-status"}' > > > > And I send QMP json format command, it report error as above. So where is > the monitor socket? Why I got error while using QMP command? > > > 2017-09-04 18:16 GMT+08:00 Daniel P. Berrange <berra...@redhat.com>: > >> On Mon, Sep 04, 2017 at 06:11:44PM +0800, Sam wrote: >> > Actually I use qga socket first(send json format command like >> {'execute': >> > 'chardev-add', 'arguments': {'id': id, 'type': type}, 'params': params} >> by >> > qga socket, which is >> > /opt/cloud/workspace/servers/1925a92d-f003-4d77-871c-bce8f85 >> 229aa/qga.sock, >> > using the same script as first mail), but it response me "netdev_add is >> not >> > valid command"(it's reasonable, as guest OS could not operate >> 'netdev_add' >> > command), so I thought qga could not do this work, then I change to >> monitor. >> >> You're mixing up two different things. 'QGA' is the QEMU guest agent >> which is a service than runs in the guest OS. 'QMP' is the QEMU monitor >> socket which runs in the host OS. Both of these use the same JSON based >> protocol, but take completely different commands. >> >> You need to use 'QMP' for 'netdev_add', not 'QGA'. >> >> Regards, >> Daniel >> -- >> |: https://berrange.com -o- https://www.flickr.com/photos/ >> dberrange :| >> |: https://libvirt.org -o- >> https://fstop138.berrange.com :| >> |: https://entangle-photo.org -o- https://www.instagram.com/dber >> range :| >> > >
