misc: Migrate away from versionize

Replace with serde instead.

Fixes: #6370

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>

virtio-devices/src/net.rs

@@ -24,6 +24,7 @@ use net_util::{
     NetQueuePair, OpenTapError, RxVirtio, Tap, TapError, TxVirtio, VirtioNetConfig,
 };
 use seccompiler::SeccompAction;
+use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 use std::net::Ipv4Addr;
 use std::num::Wrapping;
@@ -34,14 +35,11 @@ use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{Arc, Barrier};
 use std::thread;
 use thiserror::Error;
-use versionize::{VersionMap, Versionize, VersionizeResult};
-use versionize_derive::Versionize;
 use virtio_bindings::virtio_config::*;
 use virtio_bindings::virtio_net::*;
 use virtio_bindings::virtio_ring::VIRTIO_RING_F_EVENT_IDX;
 use virtio_queue::{Queue, QueueT};
 use vm_memory::{ByteValued, GuestAddressSpace, GuestMemoryAtomic};
-use vm_migration::VersionMapped;
 use vm_migration::{Migratable, MigratableError, Pausable, Snapshot, Snapshottable, Transportable};
 use vm_virtio::AccessPlatform;
 use vmm_sys_util::eventfd::EventFd;
@@ -423,7 +421,7 @@ pub struct Net {
     exit_evt: EventFd,
 }
 
-#[derive(Versionize)]
+#[derive(Serialize, Deserialize)]
 pub struct NetState {
     pub avail_features: u64,
     pub acked_features: u64,
@@ -431,8 +429,6 @@ pub struct NetState {
     pub queue_size: Vec<u16>,
 }
 
-impl VersionMapped for NetState {}
-
 impl Net {
     /// Create a new virtio network device with the given TAP interface.
     #[allow(clippy::too_many_arguments)]
@@ -886,7 +882,7 @@ impl Snapshottable for Net {
     }
 
     fn snapshot(&mut self) -> std::result::Result<Snapshot, MigratableError> {
-        Snapshot::new_from_versioned_state(&self.state())
+        Snapshot::new_from_state(&self.state())
     }
 }
 impl Transportable for Net {}