New Tech for IOMMU Users: Looking Glass (Headless Passthrough)
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- Опубликовано: 12 дек 2017
- What is passthrough? It is where you run a virtual machine and pass through a hardware graphics card to the virtual machine. This lets you run Windows on Linux, with full GPU acceleration.
NOTE: This is just an annoucement and a demo of what it does. For technical details, and how-tos, follow-ups are going to be on the Level1 Linux channel:
/ @level1linux
Need help with this now? It's alpha, but we've got the Level1 Help/Wiki:
forum.level1techs.com/t/looki...
Just want the repo?
github.com/gnif/LookingGlass
Big thanks to Sapphire Tech, Gigabyte/Aorus, and PLE Computers Australia: www.ple.com.au/
Geoff's Documentation for Looking Glass:
looking-glass.hostfission.com...
Support Geoff on Patreon:
/ gnif
**********************************
Thanks for watching our videos! If you want more, check us out online at the following places:
+ Website: level1techs.com/
+ Forums: forum.level1techs.com/
+ Store: store.level1techs.com/
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+ L1 Facebook: / level1techs
+ Wendell Twitter: / tekwendell
+ Ryan Twitter: / pgpryan
+ Krista Twitter: / kreestuh
+ Business Inquiries/Brand Integrations: Queries@level1techs.com
IMPORTANT Any email lacking “level1techs.com” should be ignored and immediately reported to Queries@level1techs.com.
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Intro and Outro Music By: Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
creativecommons.org/licenses/b... 
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Geeks: We totally have the technology!
Nvidia: Admiral, we have found the rebel base.
GG Wendell. Show it to Nvidia and see it getting patched.
That is what I fear as well :(
Well u need a graphics card so.. Why they will mind?
Because it is Nvidia. They spend a lot of effort to nerf their gaming cards to sell very expensive enterprise cards.
Because they want you to pay for an $8000 Quadro to do this kind of stuff.
Wendal needs an honorable title for all the work he is doing for the tech community.
chemislife Wendall Esquire
that actually fits to a T.
Too bad that people will only remember Zuckerberg, Musk and Bezos.
Just like happened with Dennis Ritchie.
* Bump *
Sir Wendell of numaberry
I'm literally shaking in excitement and want to show all my friends, but to them I would probably be spouting gibberish
This is really exciting and impressive! I think I'll switch my windows gaming box over to a linux host with iommu soon.
Love the IOMMU content, keep it coming!
Love it love it love it,,, so excited about this project and seeing how far it's come in a short amount of tome. What you all have achieved is nothing less than remarkable
Thanks Acid, it's been fun sticking it to the man :D
This is god damn amazing. Congrats on finally ironing out the kinks and THANK YOU AND THANKS JEFF for making this project open source and publicly available.
GloriousEggroll given what I've seen you do with wine, I'm willing to bet you're itching to get your hands dirty with this project. ;)
You're most welcome, so glad it is being received so well.
This is great work Jeff and Wendal! Can't wait for the packaged beta!
I mean between WINE, SteamPlay, and Lutris, I am not going into my Windows guest much, if at all, these days, but it is great to have this Game Glass option when I do.
Oh god, this is going to be so awesome!
Being able to actually trust your OS, *and* play Windows-only games. Simply mind blowing!
This looks really awesome, thanks everyone for great work on this project
SR-IOV is the future. I'd pay a small premium for a system that could do that.
I would have bought Vega Frontier straight up if it could have done that.
Now's the time with RTX 3000 lol
quadro rtx6000 it has it and it qualifies as premium, i don't know about the small part though
So awesome to see Wendell and his friends making this kind of stuff!
say whaaaat, my home boys PLE hooked you up, well dang, what a solid crew of lads
Very excited for this project. Certainly going to try to get it working for fun this weekend.
This is amazing! Your work on this, Wendell, Geoff, the Level1 community support, + anyone else involved, it's all *really exciting stuff* and I can't wait to see where this technology develops into the future. We just need the SR-IOV support from manufacturers. This technology, matured and coupled with hardware manufacturer support will see droves of people migrating to Linux. A great solution for gaming. But it also makes me wonder how something like Adobe After Effects (or any of their CC apps) would run on a setup like this.
If I could use PS, AE and do my gaming like this, I'd jump over to Linux and never look back.
this is HUGE. props to all the folks behind it. thanks!
Nearly at 200K Subs. Congrats guys!
Thanks for sharing the information on this new technology
Just got it running with evdev and vfio passthrough. It is so cool! Ditched my cheap KVM switch.... Thank you so much!
I've no idea what you are talking about, but you've got me excited!
This is a wonderful christmas present guys.
If I get the time between the years I'll look into it and see If I can give some inspirations or some code. Hugely exciting project. I think I will also do some fiddling with (RX) Vega because I read through most of the stack (sic!) at some point.
Christmas comes early thanks to Geoff and Level1Techs!
This is fantastic! Thank you level 1!
I'm blown away by this. Ever since my first interaction with linux over a decade ago this has been #1 on my wishlist.
Mine too, I had no idea I would be the one to invent it though :)
Man, this is increadible how both technologies are growing, and how it is implemented on the Linux!
This man is the reason why i change to run my windows 10 in a VM setup. i love how it works and that it just never complains about anything
Hey! Which hardware do you have?
When Wendell showed the usb plug thingy, it's almost as if Q is showing James Bond the newest this-macguffin-can-do-whatever-you-need-it-to gadget. :D
Thanks Wendell! Amazing times for linux gaming (ahead)!
This is amazing! Thanks guys!
IDK whats more amazing, the fact this worked, or the fact the comment section is 1 month deep without a single "my names' Jeff" joke.
I'm like liking this community more and more.
Maaaaad Props. Y'all doing the Lords work right here.
I think I just fell in love with virtualization all over again...
Very Cool Wendell, In the Day I had an Atari 400, The Atari hardware / Software display buffer was defined by "A Display list instruction where the Buffer could be anywhere within the memory space and the Display list told it that the data at the Buffer was to be Fonts/ bitmaps etc SO ONLY the MEMORY POINTER was need to change and What ever was Running as another program writing to that Buffer could be shown by the other program that was looking at that Buffer I used it in the Day as a "Copy tapes for Backup purposes" :) little piece of machine code that leveraged the built in IO calls / buffer allocation setups that I then plugged into the "New Display Buffer + that Cache " So the result was a visual program with all the "Proprietry Code With TEXT warning etc going past the user" as feed back that the backup was happening.. :) ..
I already ditched my Windows install in favor of GPU passthrough with KVM. However my intention was to stream games to Linux using Parsec...but I guess I just happened to pick the right time to switch to Linux full time because I found this video only a week later.
Looking glass works phenomenal, albeit with some annoying permissions issues with apparmor (Ubuntu 18.04). If your thinking of doing this I can give just a few tips that made life easier for me to switch.
1. Get a pcie USB controller and pass it to the VM (this way you can connect controllers, headsets, flash drives, whatever, directly to Windows)
2. Get a cheap USB sound card and connect it to the VM, connect its output to the line in for Linux, enable loop back device, adjust volume, profit with easy way to get audio (if you get a fancy usb sound card like my creative, then yes, you can still get all of the awesome virtual surround effects this way since Windows uses the card directly).
3. Scroll lock key will let you use your mouse in the looking glass window. But I still suggest having a 2nd mouse as a backup.
4. If using Gnome enable ctrl + F In keyboard settings to put apps in full screen.
5. Get a fitheadless HDMI 4K dongle if you plan on going headless (eg no second monitor) the 4K dongle supports pretty much any resolution upto 120hz so it gives you lots of options.
These are just some things that helped me and hopefully they can help someone else too.
If your thinking of trying it, dive in! It’s fun, and works great once it’s all setup.
Now, that is really cool idea!
Getting close to ditching windows as my gaming rig host OS :D
do it already just do lolzs
If have already done so for an older q6600 / HD 7950 PC to run emulators and a handful of my favorite indie games (since they typically get Linux support more often than AAA titles). Maybe I should dive more into using wine properly instead of just assuming PlayOnLinux will work and being dissapointed when it doesn't.
Most of the Windows only games I play frequently run absolutely terribly under wine/POL, if they run at all. Just switching it over without some way to run them isn't an option.
My laptop does run Linux as its one and only OS.
Zed don't play tomb raider
I know in the past i had WoW running in wine and it ran faster than using the opengl client in windows , and i have no idea why.
Amazing tech! Keep up the great work. But I hope in the future Windows=DOSbox ;)
Very impressive! :-)
Wow. This changes everything.
Great video. Did you get it working with ‘real-time’ copy of the frame buffer. Would be awesome to get the latency even lower. I do competitor gaming and every bit helps
PFFT Level1Techs. More like Level100Geniuses. I've waited so long for something like this to come to fruition and Wendy and Jeffy knock this out unlike VMware and RedHat. Quite embarrassing for them.
In fairness; was VMware or RedHat ever trying to solve a problem like this? I don't think this was ever much of a target market for them; showing a guest display in a window on the same local machine.
That said, this does look amazing. Though, so far it seems that you still need independent input devices for the guest; I wonder if they're working on anything to be implemented in looking glass that will forward input into the window to the guest OS. It feels like that should be a comparatively simple part of this much greater project, so I can't wait to see what happens. The ability to "just play" with a guest OS without any extra hardware will make it a much more prospective idea for potential new users.
Yes I'm embarrassed for RedHat and VMware
Zachary Hill there is an issue open on github to pass input
japrogramer Again: why? Since when was VMWare/RHEL trying to do this? It's pretty far from their usual market, as the "host" is usually not one person's PC, it's some server cluster in a data center.
Zachary Hill because even tho they probably have the enterprise version that has existed for years on their servers at least VMware, which does offer virtualization software for users to run on host, didn't see the need to develop it. RedHat is too busy making money too develop new technologies that would make Linux more attractive to everyday pedestrian consumers.
I haven't liked a video from anyone in a while but this was very good. +1
*looks at windows*
Look at me. I am the captain now.
Hey, this is a great idea! So I checked the wiki but couldn't find this, what are the hardware requirements to get this working?
Thanks!
This looks amazing, since I only have 1 FHD LCD. Second one is 900p so I guess that host would be limited to that. Also what are vram requirements? I could test this with rx580 and GTX550ti, or would it be better to use rx460.
what if you share resources to prevent copying for just the video output? so both windows and linux is running through the same ram, would it be more on demand?
Not kidding here... that functionality has been a wish of mine for 20 years.
My dream of having Arch as my primary OS is that much closer now...
I was wondering if you can do GPU passthrough on a laptop with dual graphics like intel integrated graphics with a dedicated gpu like the mx150?
Hardwarecanucks needs to give this the damn innovative award.
Fuck yes, I'm so fucking hyped about this. Soon as I saw it pop up on your channel I donated :D
This is absolutely amazing! The only bigger trick that I can think of is doing all that on a single GPU, but I know that's probably never going to happen. 😅
You can do it with SRIOV enabled graphics cards like a Quadro or a Radeon pro.
Does an option to do the opposite exists as well (running Windows as the host and Linux as the guest OS inside a virtual box)?
What about disk performance ? What is the best metod to create disks in kvm? Im using samsung 840 evo 256gb formated to ext4 and top of that i put qcow2 image.In Windows quest i have terrible performance
Kind regards sir , I was hoping you could tell me how to increase the memory of a kvm virtual machine . I've been googling for weeks now with no luck . Also is it possible to do gpu passthrough to a linux virtual machine . Any help from you would be greatly appreciated . Thanks in advance
This is awesome!
This is why I subscribed, any chance that I could buy a ryzen laptop with a thunder bolt port to connect an external GPU for guest an iommu passthrough than capture the buffer and display it on screen with this?
Looking good. Cant wait to use Linux as host system and play windows games in a emulated environment at near full speed. Getting really tired of dual booting.
Same. And because my desktop mainly gets used for games, I've ended up installing Firefox, Thunderbird, various tools for video editing and programming, etc on Windows because I don't want to reboot to use them (and sometimes want to run then while I play some GTAOnline).
It's not "near full speed", it IS full speed, just wait and see :D
This is damn amazing, it's a movement.
Freedom from windows as a host for gamers is almost near.
Nice tech looking forward to using it. Hopefully can find 144hz dummy plugs as well.
DutchBassAddict Is it not possible to make a "virtual device" (for example, think of the virtual network adaptors created by VPN software) by virtue of a specifically constructed driver? Why the need for any actual hardware component?
It seems like the proposed application is copying from one dedicated GPU to another dedicated GPU. Is it possible for us to copy the frame buffer into an iGPU's frame buffer? Also wondering if the new Ryzen APUs will support Freesync because reasons.
YOU GUYS ARE GODS!
This is soooo cool!
I love this!
Super cool!
Hi Wendell,
This tech is amazing! Quick question: Wouldn't it be possible to use a virtual display on the Windows guest instead of the hardware based dummy dongle?
Please keep us posted!
No, its a virtual display to windows... the video card doesn't send it data.
do i need 2 cards? if so, should they be about the same? should the host be lower-power compared to the guest?
Really cool! How is the GPU passthrough different then the passthrough in unRAID OS?
So,
will it be possible to do GPU passthrough on a laptop in a couple of years?
Good work :)
Haha, loved the intro :)
Is it possible to record the looking glass with something like windows capture on OBS? This could make for an interesting streaming setup.
I plan to add some features to OBS when the code base for Looking Glass becomes more stable, it should be possible to feed OBS the frames directly from RAM.
sorry, I'm noob on this. to make it short, can i or not, build this system with 1 nvidia gtx 1080 into 4 guest output?
10 months forward from this video... do we have the rpm/pkg thingy already? just curious
this is basically the holy grail of pci passthrough
thanks to @level1techs my windows lives in a vm and only gets used for games. Also, who would dislike this? 🧐
hello i am trying to install windows 7 on my sli plus but it loads windows but it restarts any help ?
Will this be possible in a guest-to-guest configuration in which the HV hosts a Windows VM and Linux VM each with a dedicated GPU passed through? (HV is "dumb" and only hosts the VMs)
Yes, but it would need a little more work to enable it, the IVSHMEM virtual device is available for windows and linux guests.
Where do you get those edid plugs and are there any that support 144hz? And is there anything like that SRIOV that would support Nvidia and Gsync?
You don't really need one if your guest GPU is NVidia (maybe AMD too), you can put any dummy plug on it and in NVidia Control Panel create custom resolutions that you would like.
Hello Linux brotherhood hhh I have a question can we run Linux and windows 10 like an 2 PCs and 1 CPU project ?
Love the part where he hugs his KVM switch without realising he's muffling his mic
this could be used to do gpu passthough in a notebook dual gpu notebook whitout needing an adicional monitor. Has someone do this ? some ideas on how to try?
I have an older laptop with an AMD A10 and a HD 7970. Would this make it possible to use the 7970 with a VM assuming I can get IOMMU to work?
If you can pass a video card into a VM (PCI Passthrough) and make it work, Looking Glass will work.
"Freesync on nvidia graphics"... stop
Keep up the good work
NVIDIA Dynamic Super Resolution (DSR) also on AMD :D... just set the guest's resolution to 4K
AMD has VSR Virtual Super Resolution.
Has the IOMMU groups issue been resolved?
will this work under xen or only kvm?
Big question for us normie desktop users is can this be done with the host on an Intel iGPU with the guest using the dGPU? I'm not past getting another dGPU for Linux but it would be nice to be able to use the iGPU which would normally sit unused
As someone with no Linux experience, but interested in trying it...this is the first question that entered my head.
Pretty sure he said in the last video about this project that that was indeed possible
If your motherboard is capable then, yes. Head on over to the Level1Tech Forums and ask the community after you search for IOMMU and/or GPU passthrough. level1techs.com/
Did exactly that a couple of months ago on a Gigabyte GA-H170-HD3 board with i5-6600's iGPU and GTX960.
Yeah, we have people in the L1Tech forums that report success with this configuration.
I'm curious as to how this would work with a thin client.
What about passing through a gamepad or wheel-setup? Or other peripherals, maybe even a VR headset?
Are cards like 290X supported? I'm not sure AMDGPU-drivers has support for mine.
Any USB device should be real easy to pass through - it's 2 clicks in VirtualBox, don't know how you'd do this in KVM/QEMU but should be trivial.
A VR headset's video cable can just be directly connected to the guest's GPU.
Squeee! Can be doing scaled data-mining and programming, then just run a pristine (ish) VM of Windows 10 and play while compiling/sorting.
Quick question.
I may as soon as February 1st finally have the money for a new desktop. It will be a treathripper setup with 2 vegas, one of which will be used for pci passthrough. The question now is whether or not I can actually expect to get this to works at this point in time, and what motherboard is likely to cause the least trouble.
he did say vega was getting worse performance then expected.
might be worth it to get a single nvidia gpu and vega for best of both worlds experience.
As I understand it there are issues getting nvidia to work via passthrough and besides, nvidia is... Well, I don't like nvidia, but it's quite alright. I don't need that kind of power.
I am adding Vulkan support which should resolve the Vega issues.
We had to use dummy vga plugs on the early Intel nucs to get logmein working correctly. Either the while screen or just text boxes would go black. It took intel a year or so to fix it.
Where's the link to the PLE computers place?
www.ple.com.au/ oops :D
Brilliant, does this mean that instead of buying an expensive gsync monitor we could just buy a cheap rx5XX card to pair with our 1070+ cards and take advantage of freesync with the nvidia card doing all the hard work?
In theory, we have not tested this yet... if someone wants to send me a free sync monitor I can :D
WOW AWESOME!
Thank you!!!! I was skeptical... had a few user error bumps...but man when it finally worked with win10 and hackintosh...it felt 100% worth the effort. I’m an average joe with a lot of patience, I got it to work thx to your L1TT triage forum on this. Not as hard as I thought it would be, I need to spread the gospel to other people...PCI passthrough is the best thing since hackintosh IMHO...
Can't wait to see how this works with CAD applications.
100%, it is a completely viable option for a professional environment.
Has anyone got a guide for setting up mac os x on linux with this?
I wonder if you can package up malware into the frame buffer to subvert host system's "blood-brain" barrier
If we are not careful, yeah, completely. To prevent this all parameters passed via the shared memory interface are sanitized after taking a local copy to prevent the guest attempting to hammer values and change things on us.
what is the status of this? anyone up to date? very excited about seeing this released.
Best Intros!!!
what's the status of the project in 2020?