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From: | Fabio Fantoni |
Subject: | Re: [Qemu-devel] [Xen-devel] [PATCH] libxl: Spice usbredirection support for upstream qemu |
Date: | Fri, 05 Jul 2013 11:27:59 +0200 |
User-agent: | Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 |
Il 05/07/2013 11:02, Paolo Bonzini ha scritto:
What is the best parameters for adding usb2 controller, those who had already done?----- Messaggio originale -----Da: "Fabio Fantoni" <address@hidden> A: "Paolo Bonzini" <address@hidden> Cc: "Andreas Färber" <address@hidden>, "Stefano Stabellini" <address@hidden>, address@hidden, "Wei Liu" <address@hidden>, "Ian Campbell" <address@hidden>, "Ian Jackson" <address@hidden>, address@hidden, "Hans de Goede" <address@hidden>, address@hidden 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. PaoloThanks 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
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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