Il 05/07/2013 11:02, Paolo Bonzini ha scritto:
----- Messaggio originale -----
Da: "Fabio Fantoni" <fabio.fantoni@xxxxxxx>
A: "Paolo Bonzini" <pbonzini@xxxxxxxxxx>
Cc: "Andreas Färber" <afaerber@xxxxxxx>, "Stefano Stabellini" <stefano.stabellini@xxxxxxxxxxxxx>,
xen-devel@xxxxxxxxxxxxxxxxxxx, "Wei Liu" <wei.liu2@xxxxxxxxxx>, "Ian Campbell" <Ian.Campbell@xxxxxxxxxx>, "Ian
Jackson" <Ian.Jackson@xxxxxxxxxxxxx>, qemu-devel@xxxxxxxxxx, "Hans de Goede" <hdegoede@xxxxxxxxxx>,
spice-devel@xxxxxxxxxxxxxxxxxxxxx
Inviato: Venerdì, 5 luglio 2013 10:42:30
Oggetto: Re: [Xen-devel] [PATCH] libxl: Spice usbredirection support for upstream qemu
Il 04/07/2013 22:09, Paolo Bonzini ha scritto:
Il 04/07/2013 19:17, Andreas Färber ha scritto:
Also if at some point you try to use, e.g., q35 rather than i440fx
machine, it might have EHCI by default and the snippet would be
instantiating a duplicate one. I.e., the three levels of dependency
could be separated more clearly: PCI, USB, redirection.
At least you could start specifying the USB desired version (1.1, 2.0
with companion controllers, 3.0) as an extension of the "usb=1" that is
already supported.
Paolo
Thanks and sorry, I found only now that is working also with only
-device usb-ehci,id=usb.
I'll post a new patch version.
With only the EHCI you might have problems redirecting USB 1.1 devices.
The EHCI+UHCI magic is the right thing to do for USB 2.0 support on x86.
What Andreas and I were suggesting was to split the patch in two parts:
first adding support for USB 2.0/3.0, and only then adding redirection
(perhaps with the possibility to customize how many redirected devices
to support).
Paolo
What is the best parameters for adding usb2 controller, those who had
already done?
About usb1 controller implementation parameter in xen is only with -usb,
is correct or need something better?
About usb3 controller implementation what is the best parameters?
About possibility to customize how many redirection channel I'll do it,
if I remember good on Hans post on spice-devel I seen that max working
is 4, is correct?
About different usb controller implementation on xen can be good change
xl parameter usb from 0|1 (usb1 controller added or not) to 0|1|2|3
where 0 is none, 1 is usb1, 2 is usb2 and 3 is usb3 or is better keep
usb=0|1 and add usb_version=1|2|3 parameter?
Thanks for any reply and sorry for my bad english.
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