Bo Chen 1363891df6 vmm: Avoid deadlock from waiting on paused device worker threads ...

A deadlock can happen from the destination VM of live upgrade or
migration due to waiting on paused device worker threads. For example,
when a serialization error happens after the `DeviceManager` struct is
restored (where all virtio device worker threads are spawned but in
paused/parked state), a deadlock will happen from
`DeviceManager::drop()`, as it blocks for waiting worker threads to
join.

This patch ensures that we wake up all device (mostly virtio) worker
threads before we block for them to join.

Signed-off-by: Bo Chen <chen.bo@intel.com>

2024-03-14 02:07:52 +00:00

..

api

vmm: fix openapi queue_affinity config

2024-03-05 09:24:55 +00:00

igvm

vmm: pass host data to SevSnp guest

2024-02-23 13:32:56 -08:00

acpi.rs

arch: x86_64: handle npot CPU topology

2024-01-01 10:05:03 +00:00

clone3.rs

vmm: notify virtio-console of pty resizes

2021-09-14 15:43:25 +01:00

config.rs

vmm: add NVIDIA GPUDirect P2P support

2024-02-29 09:26:29 +00:00

coredump.rs

vmm: Automatically pause VM for coredump

2023-07-31 17:05:46 +01:00

cpu.rs

vmm: support injecting NMI

2024-03-04 10:02:38 +00:00

device_manager.rs

vmm: Avoid deadlock from waiting on paused device worker threads

2024-03-14 02:07:52 +00:00

device_tree.rs

vmm: reduce memory copy when BFT device tree

2023-05-15 17:19:48 +01:00

gdb.rs

build: Bump gdbstub and gdbstub_arch

2023-12-05 10:50:06 +00:00

interrupt.rs

vm-device: support batch update interrupt source group GSI

2023-08-03 15:58:36 +01:00

lib.rs

vmm: support injecting NMI

2024-03-04 10:02:38 +00:00

memory_manager.rs

misc: Remove redundant "use" imports

2024-02-19 17:54:30 +00:00

migration.rs

vmm: speed up JSON load when reading snap files

2023-11-16 14:56:04 -08:00

pci_segment.rs

misc: Remove redundant "use" imports

2024-02-19 17:54:30 +00:00

seccomp_filters.rs

vmm: hypervisor: Add support for injecting NMI for MSHV guest

2024-03-06 00:12:06 +00:00

serial_manager.rs

serial_manager: Remove serial socket

2023-10-05 15:26:29 +01:00

sigwinch_listener.rs

vmm: Avoid zombie sigwinch_listener processes

2024-02-19 17:08:47 +00:00

vm_config.rs

vmm: add NVIDIA GPUDirect P2P support

2024-02-29 09:26:29 +00:00

vm.rs

vmm: support injecting NMI

2024-03-04 10:02:38 +00:00