Device attached failed with USB3

[koto...@gmail.com]

Hi,

When attaching a USB3 hard-drive to the untrusted VM I get the following error:

dom0$ qvm-usb -a untrusted sys-usb:4-1
ERROR: Device attach failed: sh: printf: I/O error

untrusted$ dmesg
<...>
[ 7482.281057] vhci_hcd: connection closed
[ 7482.281166] vhci_hcd: stop threads
[ 7482.281197] vhci_hcd: release socket
[ 7482.281219] vhci_hcd: disconnect device
[ 7489.228732] vhci_hcd: Failed attach request for unsupported USB speed: super-speed

sys-usb$ dmesg
<...>
[ 7627.651333] usbip-host 3-2: recv a header, 0
[ 7627.651449] usbip-host 3-2: lock for reset
[ 7634.596562] usbip-host 4-1: stub up
[ 7634.601226] usbip-host 4-1: recv a header, 0
[ 7634.705358] usbip-host 4-1: reset SuperSpeed USB device number 3 using xhci_hcd
[ 7634.716919] usbip-host 4-1: device reset

Any ideas? I'm using Qubes 3.2RC2.

[Marek Marczykowski-Górecki]

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Unfortunately drivers we use (usbip) doesn't support USB3.0 yet.

Anyway, for hard drivers, you should use block attach (qvm-block
command).

https://www.qubes-os.org/doc/usb/#tocAnchor-1-1-5
Stating with Qubes 3.2, it is possible to attach a single USB device to
any Qube. While this is useful feature, it should be used with care,
because there are many security implications from using USB devices and
USB passthrough will expose your target qube for most of them. *If
possible, use use method specific for particular device type (for
example block devices described above), instead of this generic one.*

- --
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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[raah...@gmail.com]

I'm confused I use a usb 3.0 hdd with no problems?

[Andrew David Wong]

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Hash: SHA512

On 2016-08-10 18:42, raah...@gmail.com wrote:
> On Friday, August 5, 2016 at 7:49:03 PM UTC-4, Marek Marczykowski-Górecki

> Unfortunately drivers we use (usbip) doesn't support USB3.0 yet.
>
> Anyway, for hard drivers, you should use block attach (qvm-block command).
>
> https://www.qubes-os.org/doc/usb/#tocAnchor-1-1-5 Stating with Qubes 3.2,
> it is possible to attach a single USB device to any Qube. While this is
> useful feature, it should be used with care, because there are many
> security implications from using USB devices and USB passthrough will
> expose your target qube for most of them. *If possible, use use method
> specific for particular device type (for example block devices described
> above), instead of this generic one.*
>
>

> I'm confused I use a usb 3.0 hdd with no problems?
>

There are (at least) three different ways you can attempt to use a USB 3.0
drive:

1. qvm-usb (usbip)
2. qvm-block (same as "Attach/detach block devices" in Qubes Manager)
3. Directly connected to a USB qube.

Marek is saying that method 1 doesn't yet support USB 3.0. Methods 2 and 3
should still support it.

- --
Andrew David Wong (Axon)
Community Manager, Qubes OS
https://www.qubes-os.org
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[raah...@gmail.com]

tks