Thank you for info. May I know how to goto qemu monitor from command line. Regard, Girish
-----Original Message----- From: Stefan Hajnoczi [mailto:stefa...@gmail.com] Sent: Thursday, October 20, 2016 9:22 PM To: Kumar Girish Cc: qemu-devel@nongnu.org Subject: Re: [Qemu-devel] external usb flash drive support on qemu virtualization On Thu, Oct 20, 2016 at 4:07 PM, Kumar Girish <girish.ku...@al-enterprise.com> wrote: > I have analysed my code and added the usb configuration while spawning the > guest CMM. Unfortunately still the usb is not visible. > Could you please help me on this. > I added this config "-usb -usbdevice host:090c:1000 " . you can see in the > last but one line > Following is my config > > /bin/qemu-system-x86_64 -aos cmm -smp 2 -m 3072 -aosimage > /flash/working/Mos.img -device virtio-prestera --enable-kvm -machine > accel=kvm -qmp tcp:127.0.0.1:11364,server,nowait -netdev > type=tap,id=eth0,ifname=tun0cmm,script=no,downscript=no -device > virtio-net-pci,netdev=eth0,mac=2c:fa:a2:0a:29:46 -netdev > type=tap,id=eth1,ifname=tun1cmm,script=no,downscript=no -device > virtio-net-pci,netdev=eth1,mac=00:0a:1e:11:11:f8 -netdev > type=tap,id=eth2,ifname=tun2cmm,script=no,downscript=no -device > virtio-net-pci,netdev=eth2 -netdev > type=tap,id=eth3,ifname=tun3cmm,script=no,downscript=no -device > virtio-net-pci,netdev=eth3,mac=00:0a:1e:11:11:f8 -netdev > type=tap,id=eth4,ifname=tun4cmm,script=no,downscript=no -device > virtio-net-pci,netdev=eth4 -nographic -pidfile /CMMGuestPid -append -usb > -usbdevice host:090c:1000 "console=ttyS0 empipaddr=172.17.2.189 > empnetmask=255.255.255.0 empgateway=172.17.2.254 medora_early.ALU_VMSlotNum=0 > medora_early.ALU_VMPrimaryA=1 medora_early.ALU_VMIsCmm=1" > > Have few questions please clarify. > > 1. Is it possible to add usb configuration once the guest is UP. That > is dynamically adding the usb configuration Yes. The usb_add/usb_del monitor commands or device_add/device_del can be used. I don't know the exact syntax, sorry. > 2. Once the configuration is done, should I unplug and plug the usb > flash stick (pendrive) I believe the physical USB device must be plugged into the host before you tell QEMU to add the device. > 3. does lsusb show usb devices at guest also Yes. Stefan
