From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:59832) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UCS9f-0008SK-Ki for qemu-devel@nongnu.org; Mon, 04 Mar 2013 04:58:07 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UCS9Y-0007X2-L6 for qemu-devel@nongnu.org; Mon, 04 Mar 2013 04:57:59 -0500 Received: from lnx3.fantu.it ([94.23.245.208]:41381) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UCS9Y-0007Uz-Bt for qemu-devel@nongnu.org; Mon, 04 Mar 2013 04:57:52 -0500 Message-ID: <51347018.9020302@tiscali.it> Date: Mon, 04 Mar 2013 10:57:44 +0100 From: Fabio Fantoni MIME-Version: 1.0 References: <1688569074.11503674.1362306424100.JavaMail.root@redhat.com> In-Reply-To: <1688569074.11503674.1362306424100.JavaMail.root@redhat.com> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms010008090803000305070900" Subject: Re: [Qemu-devel] Advice on some configuration parameters Reply-To: fantonifabio@tiscali.it List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alon Levy Cc: Paolo Bonzini , qemu-devel@nongnu.org Questo รจ un messaggio firmato digitalmente in formato MIME. --------------ms010008090803000305070900 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Il 03/03/2013 11:27, Alon Levy ha scritto: >> Il 01/03/2013 13:45, Paolo Bonzini ha scritto: >>> Il 12/02/2013 14:05, Fabio Fantoni ha scritto: >>>> I'm making patches to enable some qemu upstream features in xen >>>> that are >>>> missing in libxl. >>>> I'm trying to do it just by giving arguments to qemu, and I want >>>> them to >>>> be dynamic (e.g. without physical addresses if possible) and >>>> concise. >>> They should use physical addresses, otherwise changing the VM >>> hardware >>> in trivial ways may cause a waterfall effect and cause Windows to >>> reactivate. >>> >>>> If I try to set up virt-manager so that it doesn't point to a >>>> file, it >>>> uses this configuration: >>>> >>>> -device ich9-usb-ehci1,id=3Dusb,bus=3Dpci.0,addr=3D0x5.0x7 >>>> -device >>>> ich9-usb-uhci1,masterbus=3Dusb.0,firstport=3D0,bus=3Dpci.0,multifunc= tion=3Don,addr=3D0x5 >>>> >>>> -device >>>> ich9-usb-uhci2,masterbus=3Dusb.0,firstport=3D2,bus=3Dpci.0,addr=3D0x= 5.0x1 >>>> -device >>>> ich9-usb-uhci3,masterbus=3Dusb.0,firstport=3D4,bus=3Dpci.0,addr=3D0x= 5.0x2 >>>> >>>> This seems to differ from the configuration file, e.g. you have >>>> multifunzion=3Don only on the first uhci >>> That doesn't matter. >>> >>>> , besides I can't understand how many physical ports are defined. >>> There are 6 ports, controlled by either the EHCI for USB 2.0 >>> devices >>> (the EHCI controls 6 ports) or by one of the three UHCI for USB 1.1 >>> ports (one UHCI has 2 ports). >>> >>>> I tried setting 9 usbredirection >>>> channels in virt-manager but that configuration doesn't change and >>>> no >>>> errors are reported, but I doubt that physical ports are being >>>> define >>>> dynamically. >>> QEMU creates hubs automatically I think in that case. >>> >>>> About spice vdagent at the moment I'm using this configuration >>>> that >>>> seems to work: >>>> -device virtio-serial -chardev spicevmc,id=3Dvdagent,name=3Dvdagent >>>> -device >>>> virtserialport,chardev=3Dvdagent,name=3Dcom.redhat.spice.0 >>>> >>>> But I noticed that virt-manager use this slightly different one: >>>> -chardev pty,id=3Dcharserial0 -device >>>> isa-serial,chardev=3Dcharserial0,id=3Dserial0 -chardev >>>> spicevmc,id=3Dcharchannel0,name=3Dvdagent -device >>>> virtserialport,bus=3Dvirtio-serial0.0,nr=3D1,chardev=3Dcharchannel0,= id=3Dchannel0,name=3Dcom.redhat.spice.0 >>>> >>>> Are there any problem with the more concise one I'm using? >>> It is the same. >>> >>> Paolo >>> >>> >>> >> Thanks for reply. >> I have another questions: >> What exactly does the -usb parameter that seems to be necessary for >> usb >> passthrough? > It is shorthand for the appropriate "-device" to create the usb host (i= =2Ee. uhci etc.) Thanks for the reply, I tried -usb and it seems to create an usb1=20 controller with 2 ports and not an enhanced usb2 with 6 ports. >> I mean usb devices passed through host (with -usbdevice). >> Is the number of such passthrough usb devices limiting the number of >> available channel for usb redirection devices? > AFAIR yes. > >> >> > --------------ms010008090803000305070900 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: Firma crittografica S/MIME MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIINhjCC BjQwggQcoAMCAQICASAwDQYJKoZIhvcNAQEFBQAwfTELMAkGA1UEBhMCSUwxFjAUBgNVBAoT DVN0YXJ0Q29tIEx0ZC4xKzApBgNVBAsTIlNlY3VyZSBEaWdpdGFsIENlcnRpZmljYXRlIFNp 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