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virtio-devices: transport: Version common PCI config state

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Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2021-06-01 09:09:31 +00:00 committed by Sebastien Boeuf
parent 4db7530f28
commit 831dff8b4e
1 changed files with 8 additions and 4 deletions
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12
virtio-devices/src/transport/pci_common_config.rs
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@ -10,10 +10,12 @@ use crate::{Queue, VirtioDevice};
use byteorder::{ByteOrder, LittleEndian};
use std::sync::atomic::{AtomicU16, Ordering};
use std::sync::{Arc, Mutex};
use versionize::{VersionMap, Versionize, VersionizeResult};
use versionize_derive::Versionize;
use vm_memory::GuestAddress;
use vm_migration::{MigratableError, Pausable, Snapshot, Snapshottable};
use vm_migration::{MigratableError, Pausable, Snapshot, Snapshottable, VersionMapped};
#[derive(Clone, Serialize, Deserialize)]
#[derive(Clone, Versionize)]
pub struct VirtioPciCommonConfigState {
pub driver_status: u8,
pub config_generation: u8,
@ -23,6 +25,8 @@ pub struct VirtioPciCommonConfigState {
pub msix_config: u16,
}
impl VersionMapped for VirtioPciCommonConfigState {}
/// Contains the data for reading and writing the common configuration structure of a virtio PCI
/// device.
///
@ -289,11 +293,11 @@ impl Snapshottable for VirtioPciCommonConfig {
}
fn snapshot(&mut self) -> std::result::Result<Snapshot, MigratableError> {
Snapshot::new_from_state(&self.id(), &self.state())
Snapshot::new_from_versioned_state(&self.id(), &self.state())
}
fn restore(&mut self, snapshot: Snapshot) -> std::result::Result<(), MigratableError> {
self.set_state(&snapshot.to_state(&self.id())?);
self.set_state(&snapshot.to_versioned_state(&self.id())?);
Ok(())
}
}