Dylan Reid e1c2b179e7 vmm: device_manager: prune balloon and virtio_mem refs on eject ...

self.balloon and self.virtio_mem_devices are not updated when
eject_device removes the underlying device, leaving stale
Arc<Mutex<...>> entries that resize_balloon / balloon_size and the
virtio-mem DMA-handler iteration would dereference if reached after
eject. Clear self.balloon and retain-out the matching virtio-mem entry
in the PciDeviceHandle::Virtio eject arm, identifying the ejected
device by Arc pointer-equality against the already-resolved
Arc<Mutex<dyn VirtioDevice>>.

This change is defensive: DeviceManager::remove_device currently
rejects VirtioDeviceType::Balloon and VirtioDeviceType::Mem with
RemovalNotAllowed before pci_devices_down is set, so the guest never
sees an eject notification and eject_device is never reached for
either type today. If the allowlist is extended later, this cleanup
keeps the post-eject state consistent.

Signed-off-by: Dylan Reid <dgreid@fb.com>

2026-05-11 17:40:28 +00:00

..

src

vmm: device_manager: prune balloon and virtio_mem refs on eject

2026-05-11 17:40:28 +00:00

build.rs

build: Add "fuzzing" as a valid cfg(..) attribute

2024-05-08 08:10:28 +00:00

Cargo.toml

build(deps): bump the non-rust-vmm group across 2 directories with 11 updates

2026-05-08 00:48:40 +00:00