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vm-virtio: mem: Expect an identifier upon device creation

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This identifier is chosen from the DeviceManager so that it will manage
all identifiers across the VM, which will ensure uniqueness.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf
2020-04-27 13:44:43 +02:00
committed by Rob Bradford
parent 1592a9292f
commit 9b53044aae
2 changed files with 15 additions and 7 deletions
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10
vm-virtio/src/mem.rs
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@@ -738,6 +738,7 @@ impl MemEpollHandler {
// Virtio device for exposing entropy to the guest OS through virtio.
pub struct Mem {
id: String,
resize: Resize,
kill_evt: Option<EventFd>,
pause_evt: Option<EventFd>,
@@ -754,7 +755,7 @@ pub struct Mem {
impl Mem {
// Create a new virtio-mem device.
pub fn new(region: &Arc<GuestRegionMmap>, resize: Resize) -> io::Result<Mem> {
pub fn new(id: String, region: &Arc<GuestRegionMmap>, resize: Resize) -> io::Result<Mem> {
let region_len = region.len();
if region_len != region_len / VIRTIO_MEM_DEFAULT_BLOCK_SIZE * VIRTIO_MEM_DEFAULT_BLOCK_SIZE
@@ -787,6 +788,7 @@ impl Mem {
};
Ok(Mem {
id,
resize,
kill_evt: None,
pause_evt: None,
@@ -955,6 +957,10 @@ impl VirtioDevice for Mem {
}
virtio_pausable!(Mem);
impl Snapshottable for Mem {}
impl Snapshottable for Mem {
fn id(&self) -> String {
self.id.clone()
}
}
impl Transportable for Mem {}
impl Migratable for Mem {}