crosvm/devices
Xiong Zhang 3022a234b0 devices: Use Mutex to protect bus->devices
With vfio pci device hotplug, bus->devices will be inserted and removed at
runtime in different vcpu threads, so mutex should be used to protect it.

Both each vcpu thread and pci_root share mmio_bus and io_bus, so use Arc
for mmio_bus and io_bus. But pci_root is inserted into io_bus for pci cfg io,
in order to resolve reference loop and memory leak, weak is used for
pci_root.mmio_bus and pci_root.io_bus.

BUG=b:174705596
TEST=boot a vm and check its function

Change-Id: I7b3e63db76a90bc3873619b4d80a66db741ce78f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3184724
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
2021-10-21 05:42:49 +00:00
..
src devices: Use Mutex to protect bus->devices 2021-10-21 05:42:49 +00:00
.build_test_serial devices: Add simple test for proxy device 2020-11-17 21:05:51 +00:00
Cargo.toml crosvm: switch to upstream tempfile crate 2021-10-11 18:35:55 +00:00