Comment 364 for bug 1776563

After some more testing I found that these params are enough for me to boot properly on A315-41G, bios 1.13, ubuntu 18.04, kernel 4.18, uefi, secure boot:

"mem_encrypt=off ivrs_ioapic[4]=00:14.0 ivrs_ioapic[5]=00:00.2 rcu_nocbs=0-7 idle=nomwait acpi_enforce_resources=lax"