[Qemu-devel] [Bug 1130769] Re: VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

[Qemu-devel] [Bug 1130769] Re: VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

[M. Mohan Kumar]

-fsdev can take local, handle and proxy. Could you please use try with
one of them?

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Title:
  VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

Status in QEMU:
  New
Status in “qemu-kvm” package in Gentoo Linux:
  New

Bug description:
  Getting error "Parameter 'driver' expects device type" when trying to
  share a file system with a guest.

  Command line:
  qemu-kvm
      -m 4096 -cpu host -smp 4,sockets=1
      -net nic,model=virtio,macaddr=00:00:00:00:00:00 -net tap,ifname=tap0,script=no,downscript=no
      -rtc base=localtime
      -drive file=/vm/VM.img,cache=none,if=virtio
      -curses
      -boot menu=off
      -fsdev fsdriver,id=fsdev-fs0,path=/srv/files,security_model=passthrough,writeout=writeout
      -device virtio-9p-pci,fsdev=fsdev-fs0,mount_tag=files

  OS (host/guest): Gentoo
  Kernel (host/guest): 3.7.5-hardened
  CPU: AMD Opteron(TM) Processor 6272 (host: 16 cores, guest: 4)
  Arch (host/guest): x86_64
  Version: QEMU emulator version 1.2.2 (qemu-kvm-1.2.0), Copyright (c) 2003-2008 Fabrice Bellard
  Package: app-emulation/qemu-1.2.2-r3

  -no-kvm-irqchip  did not have effect
  -no-kvm-pit       did not have effect other than "Warning: KVM PIT can no longer be disabled separately."
  -no-kvm            did not work with "Could not allocate dynamic translator buffer"

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[Qemu-devel] [Bug 1130769] Re: VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

[Tim Comer]

Same result:

    -fsdev local,id=fsdev-fs0,path=/srv/files,security_model=passthrough,writeout=immediate
    -device virtio-9p-pci,fsdev=fsdev-fs0,mount_tag=files

    qemu-kvm: -device virtio-9p-pci,fsdev=fsdev-fs0,mount_tag=files:
Parameter 'driver' expects device type

Same result with a "shortcut" argument:
    qemu-kvm: -virtfs local,id=fsdev-fs0,path=/srv/files,security_model=passthrough,writeout=immediate,mount_tag=files: Parameter 'driver' expects device type

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Title:
  VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

Status in QEMU:
  New
Status in “qemu-kvm” package in Gentoo Linux:
  New

Bug description:
  Getting error "Parameter 'driver' expects device type" when trying to
  share a file system with a guest.

  Command line:
  qemu-kvm
      -m 4096 -cpu host -smp 4,sockets=1
      -net nic,model=virtio,macaddr=00:00:00:00:00:00 -net tap,ifname=tap0,script=no,downscript=no
      -rtc base=localtime
      -drive file=/vm/VM.img,cache=none,if=virtio
      -curses
      -boot menu=off
      -fsdev fsdriver,id=fsdev-fs0,path=/srv/files,security_model=passthrough,writeout=writeout
      -device virtio-9p-pci,fsdev=fsdev-fs0,mount_tag=files

  OS (host/guest): Gentoo
  Kernel (host/guest): 3.7.5-hardened
  CPU: AMD Opteron(TM) Processor 6272 (host: 16 cores, guest: 4)
  Arch (host/guest): x86_64
  Version: QEMU emulator version 1.2.2 (qemu-kvm-1.2.0), Copyright (c) 2003-2008 Fabrice Bellard
  Package: app-emulation/qemu-1.2.2-r3

  -no-kvm-irqchip  did not have effect
  -no-kvm-pit       did not have effect other than "Warning: KVM PIT can no longer be disabled separately."
  -no-kvm            did not work with "Could not allocate dynamic translator buffer"

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[Qemu-devel] [Bug 1130769] Re: VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

[Daniel Berrange]

I wonder if the Gentoo build has got virtio-9p enabled at all. This kind
of error message is the sort of thing QEMU often prints for a feature
like this is disabled at build time

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Title:
  VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

Status in QEMU:
  New
Status in “qemu-kvm” package in Gentoo Linux:
  New

Bug description:
  Getting error "Parameter 'driver' expects device type" when trying to
  share a file system with a guest.

  Command line:
  qemu-kvm
      -m 4096 -cpu host -smp 4,sockets=1
      -net nic,model=virtio,macaddr=00:00:00:00:00:00 -net tap,ifname=tap0,script=no,downscript=no
      -rtc base=localtime
      -drive file=/vm/VM.img,cache=none,if=virtio
      -curses
      -boot menu=off
      -fsdev fsdriver,id=fsdev-fs0,path=/srv/files,security_model=passthrough,writeout=writeout
      -device virtio-9p-pci,fsdev=fsdev-fs0,mount_tag=files

  OS (host/guest): Gentoo
  Kernel (host/guest): 3.7.5-hardened
  CPU: AMD Opteron(TM) Processor 6272 (host: 16 cores, guest: 4)
  Arch (host/guest): x86_64
  Version: QEMU emulator version 1.2.2 (qemu-kvm-1.2.0), Copyright (c) 2003-2008 Fabrice Bellard
  Package: app-emulation/qemu-1.2.2-r3

  -no-kvm-irqchip  did not have effect
  -no-kvm-pit       did not have effect other than "Warning: KVM PIT can no longer be disabled separately."
  -no-kvm            did not work with "Could not allocate dynamic translator buffer"

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Re: [Qemu-devel] [Bug 1130769] Re: VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

[Markus Armbruster]

Tim Comer <comer@safetymail.info> writes:

> Same result:
>
>     -fsdev
> local,id=fsdev-fs0,path=/srv/files,security_model=passthrough,writeout=immediate
>     -device virtio-9p-pci,fsdev=fsdev-fs0,mount_tag=files
>
>     qemu-kvm: -device virtio-9p-pci,fsdev=fsdev-fs0,mount_tag=files:
> Parameter 'driver' expects device type

Please try

$ upstream-qemu -device help 2>&1 | grep virtio-9p

and report back.

[...]

[Qemu-devel] [Bug 1130769] Re: VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

[Tim Comer]

Is there any way to verify? I see
"/lib64/modules/3.7.5-hardened/kernel/net/9p/9pnet_virtio.ko" - is that
it?

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Title:
  VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

Status in QEMU:
  New
Status in “qemu-kvm” package in Gentoo Linux:
  New

Bug description:
  Getting error "Parameter 'driver' expects device type" when trying to
  share a file system with a guest.

  Command line:
  qemu-kvm
      -m 4096 -cpu host -smp 4,sockets=1
      -net nic,model=virtio,macaddr=00:00:00:00:00:00 -net tap,ifname=tap0,script=no,downscript=no
      -rtc base=localtime
      -drive file=/vm/VM.img,cache=none,if=virtio
      -curses
      -boot menu=off
      -fsdev fsdriver,id=fsdev-fs0,path=/srv/files,security_model=passthrough,writeout=writeout
      -device virtio-9p-pci,fsdev=fsdev-fs0,mount_tag=files

  OS (host/guest): Gentoo
  Kernel (host/guest): 3.7.5-hardened
  CPU: AMD Opteron(TM) Processor 6272 (host: 16 cores, guest: 4)
  Arch (host/guest): x86_64
  Version: QEMU emulator version 1.2.2 (qemu-kvm-1.2.0), Copyright (c) 2003-2008 Fabrice Bellard
  Package: app-emulation/qemu-1.2.2-r3

  -no-kvm-irqchip  did not have effect
  -no-kvm-pit       did not have effect other than "Warning: KVM PIT can no longer be disabled separately."
  -no-kvm            did not work with "Could not allocate dynamic translator buffer"

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[Qemu-devel] [Bug 1130769] Re: VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

[Tim Comer]

There's a USE flag for Gentoo's package "app-emulation/qemu":
virtfs 	Enable VirtFS support. See http://wiki.qemu.org/Documentation/9psetup

I'll try enabling it explicitly and see if it helps.

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https://bugs.launchpad.net/bugs/1130769

Title:
  VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

Status in QEMU:
  New
Status in “qemu-kvm” package in Gentoo Linux:
  New

Bug description:
  Getting error "Parameter 'driver' expects device type" when trying to
  share a file system with a guest.

  Command line:
  qemu-kvm
      -m 4096 -cpu host -smp 4,sockets=1
      -net nic,model=virtio,macaddr=00:00:00:00:00:00 -net tap,ifname=tap0,script=no,downscript=no
      -rtc base=localtime
      -drive file=/vm/VM.img,cache=none,if=virtio
      -curses
      -boot menu=off
      -fsdev fsdriver,id=fsdev-fs0,path=/srv/files,security_model=passthrough,writeout=writeout
      -device virtio-9p-pci,fsdev=fsdev-fs0,mount_tag=files

  OS (host/guest): Gentoo
  Kernel (host/guest): 3.7.5-hardened
  CPU: AMD Opteron(TM) Processor 6272 (host: 16 cores, guest: 4)
  Arch (host/guest): x86_64
  Version: QEMU emulator version 1.2.2 (qemu-kvm-1.2.0), Copyright (c) 2003-2008 Fabrice Bellard
  Package: app-emulation/qemu-1.2.2-r3

  -no-kvm-irqchip  did not have effect
  -no-kvm-pit       did not have effect other than "Warning: KVM PIT can no longer be disabled separately."
  -no-kvm            did not work with "Could not allocate dynamic translator buffer"

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1130769/+subscriptions

[Qemu-devel] [Bug 1130769] Re: VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

[Tim Comer]

It did!
So this issue is resolved.
Thanks!

** Summary changed:

- VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type
+ [RESOLVED] VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

** Changed in: qemu
       Status: New => Invalid

** No longer affects: qemu-kvm (Gentoo Linux)

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Title:
  [RESOLVED] VirtFS (virtio-9p-pci) error: Parameter 'driver' expects
  device type

Status in QEMU:
  Invalid

Bug description:
  Getting error "Parameter 'driver' expects device type" when trying to
  share a file system with a guest.

  Command line:
  qemu-kvm
      -m 4096 -cpu host -smp 4,sockets=1
      -net nic,model=virtio,macaddr=00:00:00:00:00:00 -net tap,ifname=tap0,script=no,downscript=no
      -rtc base=localtime
      -drive file=/vm/VM.img,cache=none,if=virtio
      -curses
      -boot menu=off
      -fsdev fsdriver,id=fsdev-fs0,path=/srv/files,security_model=passthrough,writeout=writeout
      -device virtio-9p-pci,fsdev=fsdev-fs0,mount_tag=files

  OS (host/guest): Gentoo
  Kernel (host/guest): 3.7.5-hardened
  CPU: AMD Opteron(TM) Processor 6272 (host: 16 cores, guest: 4)
  Arch (host/guest): x86_64
  Version: QEMU emulator version 1.2.2 (qemu-kvm-1.2.0), Copyright (c) 2003-2008 Fabrice Bellard
  Package: app-emulation/qemu-1.2.2-r3

  -no-kvm-irqchip  did not have effect
  -no-kvm-pit       did not have effect other than "Warning: KVM PIT can no longer be disabled separately."
  -no-kvm            did not work with "Could not allocate dynamic translator buffer"

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1130769] Re: [RESOLVED] VirtFS (virtio-9p-pci) error: Parameter 'driver' expects device type

[Doug Goldstein]

I've updated the Gentoo docs for the flag to read:

Enable VirtFS via fsdev (host) and virtio-9p-pci (guest). See
http://wiki.qemu.org/Documentation/9psetup

Hopefully that's a bit more clear that you need to enable that for this
support.

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Title:
  [RESOLVED] VirtFS (virtio-9p-pci) error: Parameter 'driver' expects
  device type

Status in QEMU:
  Invalid

Bug description:
  Getting error "Parameter 'driver' expects device type" when trying to
  share a file system with a guest.

  Command line:
  qemu-kvm
      -m 4096 -cpu host -smp 4,sockets=1
      -net nic,model=virtio,macaddr=00:00:00:00:00:00 -net tap,ifname=tap0,script=no,downscript=no
      -rtc base=localtime
      -drive file=/vm/VM.img,cache=none,if=virtio
      -curses
      -boot menu=off
      -fsdev fsdriver,id=fsdev-fs0,path=/srv/files,security_model=passthrough,writeout=writeout
      -device virtio-9p-pci,fsdev=fsdev-fs0,mount_tag=files

  OS (host/guest): Gentoo
  Kernel (host/guest): 3.7.5-hardened
  CPU: AMD Opteron(TM) Processor 6272 (host: 16 cores, guest: 4)
  Arch (host/guest): x86_64
  Version: QEMU emulator version 1.2.2 (qemu-kvm-1.2.0), Copyright (c) 2003-2008 Fabrice Bellard
  Package: app-emulation/qemu-1.2.2-r3

  -no-kvm-irqchip  did not have effect
  -no-kvm-pit       did not have effect other than "Warning: KVM PIT can no longer be disabled separately."
  -no-kvm            did not work with "Could not allocate dynamic translator buffer"

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1130769/+subscriptions