Xen boot (xl dmesg) will eventually display: Failed to parse ACPI DMAR. Disabling VT-d). This will disable iommu support.

It's a Lenovo E15 Gen 2. The BIOS is the latest and I already ran the lenovo critical update to it. BIOS settings are also correct.

It's strange because I moved the SSD from one laptop to the other and both are exact same model/gen, the only different is the first was ram 8GB, this is 16GB.

I have added to the grub iommu=1 and tried other parameters, but they are not doing the trick. Its an Intel.

Also on:
https://forum.qubes-os.org/t/vt-d-iommu-dmar-failing-xen-troubleshooting-thinkpad-e15-gen-2/42089

https://unix.stackexchange.com/questions/806401/vt-d-iommu-dmar-failing-xen-qubesos-troubleshooting-thinkpad-e15-gen-2