[Xen-devel] Is: EPT violations. Was:Re: Problems with pci/vga passthrough

2017-01-18 Thread Konrad Rzeszutek Wilk
On Wed, Jan 18, 2017 at 02:37:16AM +0100, Diederik de Haas wrote: > Hi! > > I reported/discussed this earlier on IRC, but was asked to report it here too. > > The goal I tried to accomplish was getting vga passthrough working to get > hardware acceleration and OpenGL 2+ working for a vm containi

[Xen-devel] Is: EPT violations. Was:Re: Problems with pci/vga passthrough

2017-01-18 Thread Jan Beulich
>>> On 18.01.17 at 17:20, wrote: > Cc-ing Intel maintainers, as the issue looks to be: > > (XEN) d1v0 EPT violation 0x182 (-w-/---) gpa 0x04861ff000 mfn > 0x type 4 > (XEN) d1v0 Walking EPT tables for GFN 4861ff: > (XEN) d1v0 gfn exceeds max_mapped_pfn 40 > (XEN) d1v0 -

Re: [Xen-devel] Is: EPT violations. Was:Re: Problems with pci/vga passthrough

2017-01-18 Thread George Dunlap
On Wed, Jan 18, 2017 at 4:20 PM, Konrad Rzeszutek Wilk wrote: > On Wed, Jan 18, 2017 at 02:37:16AM +0100, Diederik de Haas wrote: >> But as soon as I enabled 'gfx_passthru = 1` and `pci = [ '02:00.0' ]`, the >> `xl create ` process kept crashing and the only way I was able to >> stop it was by doi

Re: [Xen-devel] Is: EPT violations. Was:Re: Problems with pci/vga passthrough

2017-01-19 Thread Jan Beulich
>>> On 19.01.17 at 03:55, wrote: > If you tell me what info you need and how to get it, I'll do my best to > provide it. (but I really don't want to put the vga card back in as it very > much seemed to prevent booting the whole system) Well, in that case - is there an issue here to solve in th

Re: [Xen-devel] Is: EPT violations. Was:Re: Problems with pci/vga passthrough

2017-01-24 Thread Diederik de Haas
On zondag 22 januari 2017 19:30:17 CET you wrote: > One particular thing I noticed is that I get (something that looks like) a > kernel crash when booting the kernel with Xen, which I don't get when > choosing the GRUB option without Xen. > See `cknowsvr01-dmesg-with-xen.txt` vs `cknowsvr01-dmesg

Re: [Xen-devel] Is: EPT violations. Was:Re: Problems with pci/vga passthrough

2017-01-24 Thread Jan Beulich
>>> On 24.01.17 at 16:59, wrote: > Reported it at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=852324 but > given Ben Hutchings' reaction it seems to be a Xen problem after all. > > Relevant part of earlier attached dmesg: > > [ 13.588386] WARNING: CPU: 18 PID: 1 at > /build/linux-zDY19

Re: [Xen-devel] Is: EPT violations. Was:Re: Problems with pci/vga passthrough

2017-01-24 Thread Diederik de Haas
On dinsdag 24 januari 2017 09:11:22 CET Jan Beulich wrote: > Now this is a know issue, but I'm pretty convinced one that's entirely > unrelated to your problem. Ok, good to know. Not having a clue on how to achieve what I really want, vga passthrough, I'm just trying to work my way through the is

Re: [Xen-devel] Is: EPT violations. Was:Re: Problems with pci/vga passthrough

2017-01-24 Thread Boris Ostrovsky
On 01/24/2017 11:11 AM, Jan Beulich wrote: On 24.01.17 at 16:59, wrote: >> Reported it at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=852324 but >> given Ben Hutchings' reaction it seems to be a Xen problem after all. >> >> Relevant part of earlier attached dmesg: >> >> [ 13.588386]

Re: [Xen-devel] Is: EPT violations. Was:Re: Problems with pci/vga passthrough

2017-01-24 Thread Diederik de Haas
On dinsdag 24 januari 2017 13:28:28 CET Boris Ostrovsky wrote: > >> Reported it at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=852324 > >> but given Ben Hutchings' reaction it seems to be a Xen problem after > >> all. > >> > >> Relevant part of earlier attached dmesg: > >> > >> [ 13.5883

Re: [Xen-devel] Is: EPT violations. Was:Re: Problems with pci/vga passthrough

2017-01-24 Thread Boris Ostrovsky
On 01/24/2017 01:44 PM, Diederik de Haas wrote: > On dinsdag 24 januari 2017 13:28:28 CET Boris Ostrovsky wrote: Reported it at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=852324 but given Ben Hutchings' reaction it seems to be a Xen problem after all. Relevant part

Re: [Xen-devel] Is: EPT violations. Was:Re: Problems with pci/vga passthrough

2017-01-24 Thread Boris Ostrovsky
On 01/24/2017 01:51 PM, Boris Ostrovsky wrote: > On 01/24/2017 01:44 PM, Diederik de Haas wrote: >> On dinsdag 24 januari 2017 13:28:28 CET Boris Ostrovsky wrote: > Reported it at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=852324 > but given Ben Hutchings' reaction it seems to be a