So, now that I''ve determined that PCI pass-through requires VTd, I''m looking into USB pass-through to get serial ports from my dom0 to my HVM domUs. My first question is this: has there been any progress made in the current stable versions of Xen on passing through multiple USB devices? How about the unstable versions? Since my domUs will be Windows-based, it''s annoying to have to give up the absolute mouse point support (usbdevice=tablet) just so I can forward a USB device through. Furthermore, if I have multiple USB-to-Serial devices attached to my dom0 that I need passed through to my domU, can I do that? I''ve also seen a couple of posts that allude to some sort of patch for the Xen code that enables multiple USB pass through - can anyone confirm this and point me in the right direction? Thanks! -Nick -------- This e-mail may contain confidential and privileged material for the sole use of the intended recipient. If this email is not intended for you, or you are not responsible for the delivery of this message to the intended recipient, please note that this message may contain SEAKR Engineering (SEAKR) Privileged/Proprietary Information. In such a case, you are strictly prohibited from downloading, photocopying, distributing or otherwise using this message, its contents or attachments in any way. If you have received this message in error, please notify us immediately by replying to this e-mail and delete the message from your mailbox. Information contained in this message that does not relate to the business of SEAKR is neither endorsed by nor attributable to SEAKR. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
> > So, now that I''ve determined that PCI pass-through requires VTd, I''mlooking> into USB pass-through to get serial ports from my dom0 to my HVMdomUs. My> first question is this: has there been any progress made in thecurrent stable> versions of Xen on passing through multiple USB devices? How aboutthe> unstable versions? Since my domUs will be Windows-based, it''sannoying to> have to give up the absolute mouse point support (usbdevice=tablet)just so I> can forward a USB device through. Furthermore, if I have multipleUSB-to-> Serial devices attached to my dom0 that I need passed through to mydomU, can> I do that? > > I''ve also seen a couple of posts that allude to some sort of patch forthe Xen> code that enables multiple USB pass through - can anyone confirm thisand> point me in the right direction? >Noboru Iwamatsu has developed the frontend and backed drivers for Linux. Last I heard he would be submitting some updates shortly. I have implemented the frontend driver in GPLPV, but have only tested a USB memory stick in it. Other devices that use INTERRUPT or ISOC transfers almost certainly won''t yet work, but probably won''t be too hard to fix. James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
>>> On 2009/09/30 at 22:15, "James Harper" <james.harper@bendigoit.com.au> wrote: >> >> So, now that I''ve determined that PCI pass-through requires VTd, I''m > looking >> into USB pass-through to get serial ports from my dom0 to my HVM > domUs. My >> first question is this: has there been any progress made in the > current stable >> versions of Xen on passing through multiple USB devices? How about > the >> unstable versions? Since my domUs will be Windows-based, it''s > annoying to >> have to give up the absolute mouse point support (usbdevice=tablet) > just so I >> can forward a USB device through. Furthermore, if I have multiple > USB-to- >> Serial devices attached to my dom0 that I need passed through to my > domU, can >> I do that? >> >> I''ve also seen a couple of posts that allude to some sort of patch for > the Xen >> code that enables multiple USB pass through - can anyone confirm this > and >> point me in the right direction? >> > > Noboru Iwamatsu has developed the frontend and backed drivers for Linux. > Last I heard he would be submitting some updates shortly. > > I have implemented the frontend driver in GPLPV, but have only tested a > USB memory stick in it. Other devices that use INTERRUPT or ISOC > transfers almost certainly won''t yet work, but probably won''t be too > hard to fix. > > JamesA couple of follow-up questions: 1) Does this require changes to the code in the dom0 or the Xen code (Xen itself, qemu-dm, etc.)? 2) Are the drivers included in the currently available GPLPV release? Or are they just in the current code repository? Thanks! -Nick -------- This e-mail may contain confidential and privileged material for the sole use of the intended recipient. If this email is not intended for you, or you are not responsible for the delivery of this message to the intended recipient, please note that this message may contain SEAKR Engineering (SEAKR) Privileged/Proprietary Information. In such a case, you are strictly prohibited from downloading, photocopying, distributing or otherwise using this message, its contents or attachments in any way. If you have received this message in error, please notify us immediately by replying to this e-mail and delete the message from your mailbox. Information contained in this message that does not relate to the business of SEAKR is neither endorsed by nor attributable to SEAKR. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
> A couple of follow-up questions: > 1) Does this require changes to the code in the dom0 or the Xen code(Xen> itself, qemu-dm, etc.)?No, only the updated drivers from noboru which he hasn''t yet released.> 2) Are the drivers included in the currently available GPLPV release?Or are> they just in the current code repository?Both are reasonably current. I just tried plugging a keyboard in and it doesn''t appear to work, so I''m doing something wrong. It enumerates 2 devices, one of which ends up in an error state. There is a huge amount of USB packets that I''m not yet supporting, I''ve only been testing against a USB memory stick to get it this far. James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
>>> On 2009/10/01 at 06:08, "James Harper" <james.harper@bendigoit.com.au> wrote: >> A couple of follow-up questions: >> 1) Does this require changes to the code in the dom0 or the Xen code > (Xen >> itself, qemu-dm, etc.)? > > No, only the updated drivers from noboru which he hasn''t yet released.Sorry if I''m being dense, but are these for dom0 or for Linux-based domUs?> >> 2) Are the drivers included in the currently available GPLPV release? > Or are >> they just in the current code repository? > > Both are reasonably current.I might have been unclear about this - I was trying to ask if the drivers that are posted right now already include the code for multiple USB device support, or if that''s something you''re testing on your own and have not released, yet?> > I just tried plugging a keyboard in and it doesn''t appear to work, so > I''m doing something wrong. It enumerates 2 devices, one of which ends up > in an error state. There is a huge amount of USB packets that I''m not > yet supporting, I''ve only been testing against a USB memory stick to get > it this far. > > JamesSo, what''s the domU configuration syntax for multiple USB devices (e.g. usbdevice=??)? -Nick -------- This e-mail may contain confidential and privileged material for the sole use of the intended recipient. If this email is not intended for you, or you are not responsible for the delivery of this message to the intended recipient, please note that this message may contain SEAKR Engineering (SEAKR) Privileged/Proprietary Information. In such a case, you are strictly prohibited from downloading, photocopying, distributing or otherwise using this message, its contents or attachments in any way. If you have received this message in error, please notify us immediately by replying to this e-mail and delete the message from your mailbox. Information contained in this message that does not relate to the business of SEAKR is neither endorsed by nor attributable to SEAKR. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
> >>> On 2009/10/01 at 06:08, "James Harper"<james.harper@bendigoit.com.au>> wrote: > >> A couple of follow-up questions: > >> 1) Does this require changes to the code in the dom0 or the Xencode> > (Xen > >> itself, qemu-dm, etc.)? > > > > No, only the updated drivers from noboru which he hasn''t yetreleased.> > Sorry if I''m being dense, but are these for dom0 or for Linux-baseddomUs?>There is a frontend and backend driver, just like block and network drivers.> > > >> 2) Are the drivers included in the currently available GPLPVrelease?> > Or are > >> they just in the current code repository? > > > > Both are reasonably current. > > I might have been unclear about this - I was trying to ask if thedrivers that> are posted right now already include the code for multiple USB devicesupport,> or if that''s something you''re testing on your own and have notreleased, yet? The drivers in hg and binary format are the best I have right now, they just don''t work very well :)> > > > I just tried plugging a keyboard in and it doesn''t appear to work,so> > I''m doing something wrong. It enumerates 2 devices, one of whichends up> > in an error state. There is a huge amount of USB packets that I''mnot> > yet supporting, I''ve only been testing against a USB memory stick toget> > it this far. > > > > James > > So, what''s the domU configuration syntax for multiple USB devices(e.g.> usbdevice=??)? >''xm'' and config file integration isn''t working yet. You need to muck around with command line scripts to make it work. http://www.nabble.com/-RFC--PATCH-0-4--PVUSB:-add-paravirtualized-USB-su pport-for-Xen-td22550607.html James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users