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vmm: Ensure restore matches boot sequence

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The vCPU is created and set after all the devices on a VM's boot.
There's no reason to follow a different order on the restore codepath as
this could cause some unexpected behaviors.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf 2022-06-02 18:02:36 +02:00 committed by Rob Bradford
parent 9260c3816e
commit 3edaa8adb6
1 changed files with 11 additions and 11 deletions
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22
vmm/src/vm.rs
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@ -2753,17 +2753,6 @@ impl Snapshottable for Vm {
)));
}
if let Some(cpu_manager_snapshot) = snapshot.snapshots.get(CPU_MANAGER_SNAPSHOT_ID) {
self.cpu_manager
.lock()
.unwrap()
.restore(*cpu_manager_snapshot.clone())?;
} else {
return Err(MigratableError::Restore(anyhow!(
"Missing CPU manager snapshot"
)));
}
if let Some(device_manager_snapshot) = snapshot.snapshots.get(DEVICE_MANAGER_SNAPSHOT_ID) {
self.device_manager
.lock()
@ -2775,6 +2764,17 @@ impl Snapshottable for Vm {
)));
}
if let Some(cpu_manager_snapshot) = snapshot.snapshots.get(CPU_MANAGER_SNAPSHOT_ID) {
self.cpu_manager
.lock()
.unwrap()
.restore(*cpu_manager_snapshot.clone())?;
} else {
return Err(MigratableError::Restore(anyhow!(
"Missing CPU manager snapshot"
)));
}
#[cfg(target_arch = "aarch64")]
self.restore_vgic_and_enable_interrupt(&snapshot)?;