I am running CentOS 7 having switched back from Ubuntu in a desire for stability.
I am trying to follow these guides to get a VM working where I can passthrough one of my nvidia GTX 1080s. My
posting.php?mode=post&f=48
http://ask.xmodulo.com/pci-passthrough- ... nager.html
I've set iommu_on for the kernel in grub, the module vfio is enabled in /etc/modules.
lspci output: https://pastebin.com/BMy4fa3v
dmesg output: https://pastebin.com/xmKZxbVE
Error starting domain: unsupported configuration: host doesn't support passthrough of host PCI devices
I fail to understand what I've missed.
When I tried to do this via Ubuntu, the DMAR step failed miserably due to lack of read permission. I could never figure it out. DMAR seems happy on this OS.
Thanks.
PCI passthrough via KVM
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PCI passthrough via KVM
- Attachments
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- qemu-kvm_error.txt
- specific error qemu/kvm is giving me
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Re: PCI passthrough via KVM
Didn't look/didn't read (that's the disclaimer):
Passthrough is complex and starts at the BIOS level, start there.
Passthrough is complex and starts at the BIOS level, start there.
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- Posts: 2019
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- Location: Bulgaria
- Contact:
Re: PCI passthrough via KVM
You have End-user GPU, thus the client driver will notice you are using KVM in passthrough mode and will not allow you.
You have 2 options -- rebuild the KVM in order to cheat the VM that it's running on real hardware , or switch to enterprise-grade Nvidia or an AMD-based GPU.
You have 2 options -- rebuild the KVM in order to cheat the VM that it's running on real hardware , or switch to enterprise-grade Nvidia or an AMD-based GPU.