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vmm: Don't use migratable_devices for restore

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This commit switches from migratable_devices to device_tree in order to
restore devices exclusively based on the device tree.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf 2020-04-30 20:19:02 +02:00
parent bc6084390f
commit 1be7037229
1 changed files with 18 additions and 14 deletions
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32
vmm/src/device_manager.rs
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@ -3162,9 +3162,11 @@ impl Snapshottable for DeviceManager {
let mut snapshot = Snapshot::new(DEVICE_MANAGER_SNAPSHOT_ID);
// We aggregate all devices snapshots.
for (_, dev) in self.migratable_devices.iter() {
let device_snapshot = dev.lock().unwrap().snapshot()?;
snapshot.add_snapshot(device_snapshot);
for (_, device_node) in self.device_tree.iter() {
if let Some(migratable) = &device_node.migratable {
let device_snapshot = migratable.lock().unwrap().snapshot()?;
snapshot.add_snapshot(device_snapshot);
}
}
// Then we store the DeviceManager state.
@ -3212,10 +3214,10 @@ impl Snapshottable for DeviceManager {
}
// Restore the node
if let Some(device) = self.migratable_devices.get(id) {
if let Some(migratable) = &node.migratable {
debug!("Restoring {} from DeviceManager", id);
if let Some(snapshot) = snapshot.snapshots.get(id) {
device.lock().unwrap().restore(*snapshot.clone())?;
migratable.lock().unwrap().restore(*snapshot.clone())?;
} else {
return Err(MigratableError::Restore(anyhow!("Missing device {}", id)));
}
@ -3223,15 +3225,17 @@ impl Snapshottable for DeviceManager {
// Restore the parent if it exists
if let Some(parent) = &node.parent {
if let Some(device) = self.migratable_devices.get(parent) {
debug!("Restoring {} from DeviceManager", parent);
if let Some(snapshot) = snapshot.snapshots.get(parent) {
device.lock().unwrap().restore(*snapshot.clone())?;
} else {
return Err(MigratableError::Restore(anyhow!(
"Missing parent device {}",
id
)));
if let Some(node) = self.device_tree.get(parent) {
if let Some(migratable) = &node.migratable {
debug!("Restoring {} from DeviceManager", parent);
if let Some(snapshot) = snapshot.snapshots.get(parent) {
migratable.lock().unwrap().restore(*snapshot.clone())?;
} else {
return Err(MigratableError::Restore(anyhow!(
"Missing parent device {}",
id
)));
}
}
}
}