-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On Thu, Jun 09, 2016 at 06:20:51AM -0700, Marcus at WetwareLabs wrote: > Hello everyone! > > What would be the steps for installing and trying out different Xen > versions in Qubes 3.1? Or even switching to KVM? Shouldn't HAL make this > possible on Qubes 3.0+ ?
As for KVM - it isn't that simple - requires writing few components - namely vchan library and a little modification to gui-daemon (currently uses Xen-specific feature to map memory pages from VM). > I'm mainly interested in testing Xen 4.3 branch, Take a look at my github account, there is xen-4.4 branch, it should be quite simple to get xen 4.3 from there. When you build such package in Qubes 3.1 environment it should just work, at least in theory. But see below. > since there's anecdotal > evidence that something might have broken with GPU passthrough between Xen > versions 4.4 and 4.3 and I have not seen any success stories of passthrough > after 4.3. > http://www.gossamer-threads.com/lists/xen/users/349649 > https://lime-technology.com/forum/index.php?topic=36101.0 > https://www.linuxserver.io/index.php/2013/09/12/xen-4-3-windows-8-with-vga-passthrough-on-arch-linux/ > Only exception is here: > https://groups.google.com/forum/#!topic/qubes-users/cmPRMOkxkdA > with Qubes 3.0RC2 but he seems to be using AMD GPU & CPU whereas I'm with > Intel and Nvidia. > > Personally I've been trying to get the GPU passthrough (as secondary GPU) > working for the past two weeks now, without luck. It's always the same > result: Windows BSODs during the first boot after driver installation. I've > tried Windows 7 Pro SP1 and Windows 8.1 and both act the same way. I know > it's not a hardware problem, since GPU passthrough using *KVM on Arch Linux* > *works > without hiccup*. Also the same BSOD happens with Xen on Arch Linux, so I > also know that *it's not restricted to just Qubes. *Also it's not about the > well-known problem of "BSOD after 2nd boot", since with KVM I could boot > DomU many times flawlessly without any requirement to boot Dom0 (to reset > the GPU as well). Do you see PCI device in the VM at all? There is a problem with this in Qubes 3.0+ : https://github.com/QubesOS/qubes-issues/issues/1659 And as you can see, there is some progress recently, but it isn't solved yet. > I've tried out these OS's with stock Xen versions: > Arch Linux, Xen 4.6.1: BSOD on DomU boot > Qubes 3.1, Xen 4.6.0: BSOD on DomU boot > Qubes 3.0 RC 2, Xen 4.4.2: BSOD on DomU boot > Qubes 2.0, Xen 4.1.6: Sadly BSOD on DomU boot here as well.. Ok, this is some hint that solving #1659 would not be enough... > My current HW is: > Intel I7-5820K > Asrock X99 WS > EVGA GTX 980 (passthrough GPU) > Asus Radeon R5 230 (dom0 GPU) > > I've tried also Radeon as passthrough GPU on Xen 4.6.0 with many driver > versions (win 7 pro), but with same results. > > I would be very interested hearing what kind of results others have > achieved! > - -- 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? -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJXWXppAAoJENuP0xzK19csjJkIAI479ZpDcVLSE35zrEslIevD Hsj65Lj15yPfEbU797vciZgGql04yUQwBjaZkgCMyWpPrizr1GSZHuMerRo4dJk7 4DY1DFAjykBxucPdQlL539JDWgO5DdL4bFb4o+zD+rPSNzDwQqOt1LDX36AewRW1 DCfVTsoZbdl+PBxpqByd2QnjehBAaceWg1LC57+4BXTJM8IViZQWOxu+IMnBVHLa bhGsj+nKJIJxrYcaVMymbQbBMxCGjrsayBBRjVl9txf5q5QwJLKbQ8zA24FOC8HA TnVYcQNK4NCMUEJKd21PMRFsSb5r7cgU8JPFpwbAjctHfzisrqy65D/xZnVJlIM= =rFfY -----END PGP SIGNATURE----- -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/20160609141714.GE1593%40mail-itl. For more options, visit https://groups.google.com/d/optout.
