Parameter 'sgx-epc.0.node' is unexpected

Host environment

• Operating system: ubuntu22.04
• Architecture: x86
• QEMU flavor: qemu-system-x86_64
• QEMU version: 6.2.0
• QEMU command line:

  qemu-system-x86_64 -nographic -m 2048 \
   ubuntu.img -cdrom  ubuntu-18.04.6-live-server-amd64.iso\
   -cpu host,+sgx-provisionkey \
   -object memory-backend-epc,id=mem1,size=64M,prealloc=on \
   -M sgx-epc.0.memdev=mem1,sgx-epc.0.node=0

Emulated/Virtualized environment

• Operating system: ubuntu18.04 server

Description of problem

qemu-system-x86_64: Parameter 'sgx-epc.0.node' is unexpected

Additional information