... until Kevin added some when he QAPIfied. Looks like this (copied
from qemu-qmp-ref.7)[*]:
SevGuestProperties (Object)
Properties for sev-guest objects.
Members
sev-device: string (optional)
SEV device to use (default: "/dev/sev")
dh-cert-file: string (optional)
guest owners DH certificate (encoded with base64)
session-file: string (optional)
guest owners session parameters (encoded with base64)
policy: int (optional)
SEV policy value (default: 0x1)
handle: int (optional)
SEV firmware handle (default: 0)
cbitpos: int (optional)
C-bit location in page table entry (default: 0)
reduced-phys-bits: int
number of bits in physical addresses that become unavailable
when SEV is enabled
Since
2.12
If
defined(CONFIG_SEV)
Your patch drops the last three lines, without a replacement.