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Re: [Qemu-devel] external usb flash drive support on qemu virtualization
From: |
Kumar Girish |
Subject: |
Re: [Qemu-devel] external usb flash drive support on qemu virtualization |
Date: |
Fri, 21 Oct 2016 05:47:05 +0000 |
Thank you for info. May I know how to goto qemu monitor from command line.
Regard,
Girish
-----Original Message-----
From: Stefan Hajnoczi [mailto:address@hidden
Sent: Thursday, October 20, 2016 9:22 PM
To: Kumar Girish
Cc: address@hidden
Subject: Re: [Qemu-devel] external usb flash drive support on qemu
virtualization
On Thu, Oct 20, 2016 at 4:07 PM, Kumar Girish <address@hidden> 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