Following here since I am trying to do the same.
Adding this Line to args: -smbios type=0,vendor="American Megatrends Inc.",version=1903,date="08/30/2023" gives me a QEUMU error on start up. If I delete this with the kvm off etc. It starts up but is still showing a virtual machine. Any ideas?
swtpm_setup: Not overwriting existing state file.
kvm: type=0,vendor=American Megatrends Inc.,version=1903,date=08/30/2023: Could not open 'type=0,vendor=American Megatrends Inc.,version=1903,date=08/30/2023': No such file or directory
stopping swtpm instance (pid 53071) due to QEMU startup error
TASK ERROR: start failed: QEMU exited with code 1