This assumes you are using libvirt, I have not tested on anything else.
Add the below ACPI section with the table entry to your libvirt XML file.
| <domain type="kvm"> | |
| <name>@NAME@</name> | |
| ... | |
| <os> | |
| <type arch="x86_64" machine="pc-q35-6.2">hvm</type> | |
| <loader readonly="yes" secure="yes" type="pflash">/usr/share/edk2-ovmf/x64/OVMF_CODE.secboot.fd</loader> | |
| <nvram>/var/lib/libvirt/qemu/nvram/@NAME@_VARS.fd</nvram> | |
| <acpi> | |
| <table type="slic">/sys/firmware/acpi/tables/SLIC</table> | |
| </acpi> | |
| <boot dev="hd"/> | |
| </os> | |
| ... | |
| </domain> |