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virtio-devices, vm-virtio: Refactor queue state saving/restoring

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Use a separate QueueState structure which can be versioned.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford
2021-06-01 09:30:03 +00:00
committed by Sebastien Boeuf
parent 831dff8b4e
commit 57f532a760
5 changed files with 29 additions and 22 deletions
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10
vm-virtio/src/queue.rs
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@@ -384,11 +384,7 @@ impl<'a, 'b> Iterator for AvailIter<'a, 'b> {
}
}
#[derive(Serialize, Deserialize)]
#[serde(remote = "GuestAddress")]
struct GuestAddressDef(pub u64);
#[derive(Clone, Serialize, Deserialize)]
#[derive(Clone)]
/// A virtio queue's parameters.
pub struct Queue {
/// The maximal size in elements offered by the device
@@ -403,22 +399,18 @@ pub struct Queue {
/// Interrupt vector index of the queue
pub vector: u16,
#[serde(with = "GuestAddressDef")]
/// Guest physical address of the descriptor table
pub desc_table: GuestAddress,
#[serde(with = "GuestAddressDef")]
/// Guest physical address of the available ring
pub avail_ring: GuestAddress,
#[serde(with = "GuestAddressDef")]
/// Guest physical address of the used ring
pub used_ring: GuestAddress,
pub next_avail: Wrapping<u16>,
pub next_used: Wrapping<u16>,
#[serde(skip)]
pub iommu_mapping_cb: Option<Arc<VirtioIommuRemapping>>,
/// VIRTIO_F_RING_EVENT_IDX negotiated