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kata-types: Introduce independent IO thread for virtio-blk devices

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The 'indep_iothreads' field is introduced in Hypervisor to make it
configurable for number of independent IO threads for virtio-blk
devices. When set to a value greater than 0, creates independent
IO threads that can be attached to virtio-blk devices during hotplug.

Note that it requires 'enable_iothreads' to be true for virtio-blk
devices to use these threads.

Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
This commit is contained in:
Alex Lyn
2026-04-14 16:19:46 +08:00
committed by Fabiano Fidêncio
parent 8f5b898e6d
commit d086d324e0
1 changed files with 10 additions and 2 deletions
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12
src/libs/kata-types/src/config/hypervisor/mod.rs
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@@ -1720,11 +1720,19 @@ pub struct Hypervisor {
/// Enables the use of iothreads (data-plane).
///
/// When enabled, I/O operations are handled in a separate I/O thread.
/// This is currently only implemented for SCSI devices.
/// This is currently implemented for SCSI devices and for virtio-blk
/// hotplug when `indep_iothreads` is greater than 0.
#[serde(default)]
pub enable_iothreads: bool,
/// Number of independent IO threads for virtio-blk-pci devices.
///
/// When set to a value greater than 0, creates independent IO threads
/// that can be attached to virtio-blk-pci devices during hotplug.
/// Requires enable_iothreads to be true for virtio-blk-pci devices to use these threads.
#[serde(default)]
pub indep_iothreads: u32,
/// Block device configuration information.
#[serde(default, flatten)]
pub blockdev_info: BlockDeviceInfo,