Configuring GPU Pass-Through for AMD cards on openSUSE Kalpa

Prerequisites

• You need an additional display card on the host (eg. 1 igpu + 1 dedicate gpu or 2 dedicate gpu).


• GPU pass-through is supported on the AMD64/Intel 64 architecture only.

Configuring the host

Verify the host environment

Verify that the host support is disabled by default. You need to enable it at boot time in the /etc/kernel/cmdline configuration file.

1) For Intel CPU add this line to file:

intel_iommu=on iommu=pt rd.driver.pre=vfio-pci

2) For AMD CPU add this line instead:

amd_iommu=on iommu=pt rd.driver.pre=vfio-pci

3) Finally, when you cat the file, you will see content like this:

# cat /etc/kernel/cmdline 

root=/dev/nvme0n1p2 splash=silent swapaccount=1 systemd.show_status=1 mitigations=auto quiet security=selinux selinux=1 intel_iommu=on iommu=pt rd.driver.pre=vfio-pci

Configure

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