We faced the problem of launching two UOSs at the same time. We deployed the whiskey lake board: whl-IPC-i7.xml, and we customize the scenario file with 4 Post-STD VM.

We can successfully launch one VM, but we can not create the second VM in the acrn kernel.

I attached the two launch file

gpu_launch_uos3.sh

console_launch_uos3_4.sh

Besides, I attach my board file and scenario file if it can help to find out the issue.

I add the following the command line in the file in the /etc/grub.d/40.cutsom for Gvt-g

“i915.nuclear_pageflip=1 i915.avail_planes_per_pipe=0x010101 i915.domain_plane_owners=0x011100001111 i915.enable_gvt=1 i915.enable_guc=0 i915.enable_conformance_check=0”

For each launch file, we can launch the VM without any problem. But If I launch them at the same time, only the first one is successful, the another one is failed to created.

I go through the issue from GitHub. However, no direct solution is founded based on those comments.

Do you have any idea how I can forward further?

Thank you very much firstly for your support.