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vm-virtio: iommu: 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 14:51:15 +02:00
committed by Rob Bradford
parent 052eff1ca7
commit 556871570e
2 changed files with 13 additions and 5 deletions
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10
vm-virtio/src/iommu.rs
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@@ -793,6 +793,7 @@ impl DmaRemapping for IommuMapping {
}
pub struct Iommu {
id: String,
kill_evt: Option<EventFd>,
pause_evt: Option<EventFd>,
avail_features: u64,
@@ -808,7 +809,7 @@ pub struct Iommu {
}
impl Iommu {
pub fn new() -> io::Result<(Self, Arc<IommuMapping>)> {
pub fn new(id: String) -> io::Result<(Self, Arc<IommuMapping>)> {
let config = VirtioIommuConfig {
page_size_mask: VIRTIO_IOMMU_PAGE_SIZE_MASK,
probe_size: PROBE_PROP_SIZE,
@@ -822,6 +823,7 @@ impl Iommu {
Ok((
Iommu {
id,
kill_evt: None,
pause_evt: None,
avail_features: 1u64 << VIRTIO_F_VERSION_1
@@ -1039,6 +1041,10 @@ impl VirtioDevice for Iommu {
}
virtio_pausable!(Iommu);
impl Snapshottable for Iommu {}
impl Snapshottable for Iommu {
fn id(&self) -> String {
self.id.clone()
}
}
impl Transportable for Iommu {}
impl Migratable for Iommu {}