tree 9e219c8be641530248e444ec3dec7511bb3bf599
parent d0b91ab0bef734cdcb14d660151a9ce008b65fce
author Vineeth Pillai <vineethrp@google.com> 1645239615 +0000
committer Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> 1653069861 +0000

crosvm: vm_events: consolidate vm events into one framework.

crosvm waits on events like exit, reset, crash, guest panic etc and
uses eventfd to wait on these events. As of now, we have 4 eventfds
and may increase.

This is an attempt to consolidate all Vm events into one framework.
Use Tube instead of Event to get consistent behavior between OSes.
Implement a wrapper over Tube to have a consistent API for events.

BUG=None.
TEST=Built crosvm. Ran a minimal vm to panic and verified that crosvm
received the panic event. cargo test on devices.

Change-Id: I313d428de5e3ce3b879982f913918ec0a4a72c35
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3480577
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Vineeth Pillai <vineethrp@google.com>
Reviewed-by: Noah Gold <nkgold@google.com>