Re: [vfio-users] Running 2 VMs with assigned GPUs causes both GPUs to crash, unless all virtual disks exist on the same physicakl media as /

2016-11-05 Thread Zir Blazer
Do you know if that issue is reproducible in other systems? The Nehalem generation Chipsets had issues with Interrupt Remapping, so when I see people with these systems having issues when using the IOMMU, I would point my finger there first. You may want to try disabling Interrupt Remapping for

[vfio-users] Running 2 VMs with assigned GPUs causes both GPUs to crash, unless all virtual disks exist on the same physicakl media as /

2016-11-05 Thread Brian Yglesias
When running multiple VMs with GPU passthrugh, both VMs will crash unless all virtual disks are on the same physical volume as root, likely on all X58 chipset motherboards. I've tested with 3. Expected Behavior: No Crash Result: Both VMs GPU drivers fail and the guest OS are unrecoverable, usually

[vfio-users] My guide for installing Arch Linux + QEMU-KVM-VFIO

2016-11-05 Thread Zir Blazer
Around 2 years ago I did a guide for installing Arch Linux with Xen to do VGA Passthrough. I think not more than 3 or 4 people actually used it while it was up-to-date, then it got completely obsolete as KVM-VFIO outclassed Xen for VGA Passthrough. I decided to overhaul my old guide (Which is cu

[vfio-users] AMD and NVIDIA cards for QEMU PCI passthrough

2016-11-05 Thread matt.jk3
Hello I'm preparing to setup my first Linux system running a VM with near native performance. My CPU doesn't have an integrated GPU so I bought AMD for use with the host system and I'd like to use NVIDIA card on the guest. My question is: can I use NVIDIA on the "host" when I'm not running the