Hardcode qemu args to add `quote-generation-socket`

osdk/src/config/mod.rs

@@ -182,6 +182,13 @@ fn apply_args_after_finalize(action: &mut Action, args: &CommonArgs) {
         action.qemu.args += " --no-shutdown";
         action.qemu.with_monitor = true;
     }
+
+    // Since current QEMU argument parsing does not support QOM format, hardcode the argument here.
+    // The argument configures a TDX guest object with a vsock-based communication channel to the
+    // Quote Generation Service running on the host machine.
+    if std::env::var("INTEL_TDX").is_ok_and(|s| s == "1") {
+        action.qemu.args += " -object '{ \"qom-type\": \"tdx-guest\", \"id\": \"tdx0\", \"sept-ve-disable\": true, \"quote-generation-socket\": { \"type\": \"vsock\", \"cid\": \"2\", \"port\": \"4050\" } }'";
+    }
 }
 
 impl Config {

tools/qemu_args.sh

@@ -55,7 +55,6 @@ if [ "$1" = "tdx" ]; then
         -monitor pty \
         -nodefaults \
         -bios /root/ovmf/release/OVMF.fd \
-        -object tdx-guest,sept-ve-disable=on,id=tdx0 \
         -cpu host,-kvm-steal-time,pmu=off \
         -machine q35,kernel-irqchip=split,confidential-guest-support=tdx0 \
         -device virtio-net-pci,netdev=net01,disable-legacy=on,disable-modern=off$VIRTIO_NET_FEATURES \