pve-qemu-kvm 2.7

[efeu]

Hi,
I'm wondering when pve-qemu-kvm 2.7 will be released? Are there made any changes to the qemu source at all? So if not, could i just build http://wiki.qemu-project.org/download/qemu-2.7.0.tar.bz2 and use it?

I'm asking cause in 2.7 there were some changes included which lets me passthrough Intel Integrated Graphics to a VM.

 

[wolfgang]

Hi,

if you make your own qemu build you lose the capability to make backups.

 

[efeu]

So there is no release date for pve-qemu-kvm-2.7 jet? Does a RC/unstable build exist, so that I wont loose the backup capability?

 

[efeu]

I'm asking cause in your wiki qemu 2.7 is mentioned, so there should be a build or am I wrong?
Here under CPU Hotplug:
https://pve.proxmox.com/wiki/Hotplug_(qemu_disk,nic,cpu,memory)

 

[dcsapak]

no there is currently no build, but the cpu hotplug feature mentioned should work with qemu >2.7 as soon as we update it

 

[fireon]

I'm asking cause in 2.7 there were some changes included which lets me passthrough Intel Integrated Graphics to a VM.

And this should work in real? I tested a lot of things about in the past (nvidia and co...) but nothing was working. Only an really expensive quatro, and only with an old citrix xen. I don't know but i think it's not so easy to passthrough some graphics... ;(

 

[spirit]

I'm asking cause in your wiki qemu 2.7 is mentioned, so there should be a build or am I wrong?
Here under CPU Hotplug:
https://pve.proxmox.com/wiki/Hotplug_(qemu_disk,nic,cpu,memory)

It's me who have already updated the wiki.
cpu hot-unplug will work with qemu 2.7 , but this also need other change in proxmox qemu-server package. (I have already posted patches on mailing list).So better to wait a little bit that all is correctly commited in proxmox repos.

cpu hotplug already work with qemu 2.6.

 

[efeu]

And this should work in real? I tested a lot of things about in the past (nvidia and co...) but nothing was working. Only an really expensive quatro, and only with an old citrix xen. I don't know but i think it's not so easy to passthrough some graphics... ;(

I passthroughed a lot of Devices, nVidia GTX970, nV GT430, AMD HD6950, AMD R9 290X, SAS RAID Controller, PCI Soundcard, USB Soundcard, USB Controller, PCI/PCI-E TV Cards
Until qemu-kvm2.7 you could not passthrough an Intel Integrated Graphic, but it should work now.
No need for a Quadro Card.

 

[fireon]

I passthroughed a lot of Devices, nVidia GTX970, nV GT430, AMD HD6950, AMD R9 290X, SAS RAID Controller, PCI Soundcard, USB Soundcard, USB Controller, PCI/PCI-E TV Cards
Until qemu-kvm2.7 you could not passthrough an Intel Integrated Graphic, but it should work now.
No need for a Quadro Card.

impressive

 

[efeu]

Not to impressive
Just follow the steps here https://pve.proxmox.com/wiki/Pci_passthrough
It was kinda complex some time ago, but now almost everything works out of the box in proxmox, just waiting for qemu 2.7 for the iGPU passthrough so I can remove one GPU from my host.

 

[fireon]

I've tested this so often again an again with different hardware, but nothing works, no dell, no hp, no supermicro. Testet with an 3000 Eurocard an with an cheaper 800 Euro. TVcard and other pcie are working fine, but nerver graphics. Ok.... waiting for 2.7

 

[efeu]

You misunderstood me, pci(-e) passthrough with gpu passthrough is working for years now (and like a charm). You need to wait for 2.7 only for the Intel iGPUs, but this may need some extra work to be done for the configuration, just try a normal dedicated GPU step by step from the wiki, it's kinda simple in proxmox.

 

[efeu]

So my question when there will be a pve-qemu-kvm-2.7 build released is still not answered.
Will there be a build for proxmox4.3 or will it not be released until proxmox4.4 ?

 

[fireon]

So my question when there will be a pve-qemu-kvm-2.7 build released is still not answered.
Will there be a build for proxmox4.3 or will it not be released until proxmox4.4 ?

Interessting too.

 

[fabian]

So my question when there will be a pve-qemu-kvm-2.7 build released is still not answered.
Will there be a build for proxmox4.3 or will it not be released until proxmox4.4 ?

it's in the works, and as always, it will be released when ready. if you are interested in testing early packages, I'd recommend to follow pve-devel and wait for patches to hit the git repositories.

 

[fireon]

it's in the works, and as always, it will be released when ready. if you are interested in testing early packages, I'd recommend to follow pve-devel and wait for patches to hit the git repositories.

Nice, Thanks!

 

[efeu]

So in pve-test there is a pve-qemu-kvm 2.7 package now, thx for that!

What I try to do needs at least kernel4.6, so before I screw up my whole pve-test system, I'd like to know if there would be problems by installing newer kernel from here:
http://kernel.ubuntu.com/~kernel-ppa/mainline/

As I read pve using xenial kernel, so should this work or should this not work?

 

[fabian]

the kernels from that PPA are not Ubuntu kernels, but "mainline" (i.e., stock upstream) kernels. the purpose of those kernels is to aid in regression testing, they are not supposed to be used as production kernels. please also note that our kernels contain customized configuration, additional drivers and modules as well as feature and bug fix patches (compared to Ubuntu Xenial's 4.4 kernel). if you try newer (upstream or Ubuntu) kernels, they may or may not work, depending on what you test, which hardware you use, and how lucky you are

 

[efeu]

Ok, thx, I'll try and share my experience with it.
Forsure this is not a productive system, it's just a test environment.

 

[efeu]

Have not much tested yet, but what I can say till now is that in the mainline kernels 4.6/4.7/4.8 and in the YakketyYak kernel 4.8.0-22-generic the zfs and vfio modules are missing and forsure the pcie_acs_override patches and some other stuff, so I'm going to try my own kernel build with the necessary patches and modules enabled in the next weeks.