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pci: vfio: Implement Migratable for VfioPciDevice

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Based on the VfioCommon implementation, the VfioPciDevice now implements
the Migratable trait.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf 2022-06-07 16:30:49 +02:00
parent 49069d8474
commit 3b59e57001
1 changed files with 31 additions and 1 deletions
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32
pci/src/vfio.rs
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@ -30,7 +30,9 @@ use vm_device::interrupt::{
};
use vm_device::{BusDevice, Resource};
use vm_memory::{Address, GuestAddress, GuestUsize};
use vm_migration::{MigratableError, Pausable, Snapshot, Snapshottable, VersionMapped};
use vm_migration::{
Migratable, MigratableError, Pausable, Snapshot, Snapshottable, Transportable, VersionMapped,
};
use vmm_sys_util::eventfd::EventFd;
#[derive(Debug, Error)]
@ -1616,3 +1618,31 @@ impl PciDevice for VfioPciDevice {
Some(self.id.clone())
}
}
impl Pausable for VfioPciDevice {}
impl Snapshottable for VfioPciDevice {
fn id(&self) -> String {
self.id.clone()
}
fn snapshot(&mut self) -> std::result::Result<Snapshot, MigratableError> {
let mut vfio_pci_dev_snapshot = Snapshot::new(&self.id);
// Snapshot VfioCommon
vfio_pci_dev_snapshot.add_snapshot(self.common.snapshot()?);
Ok(vfio_pci_dev_snapshot)
}
fn restore(&mut self, snapshot: Snapshot) -> std::result::Result<(), MigratableError> {
// Restore VfioCommon
if let Some(vfio_common_snapshot) = snapshot.snapshots.get(&self.common.id()) {
self.common.restore(*vfio_common_snapshot.clone())?;
}
Ok(())
}
}
impl Transportable for VfioPciDevice {}
impl Migratable for VfioPciDevice {}