Rob Bradford e023efce3d vmm: cpu: Retry signalling the vCPU thread if it doesn't acknowledge ...

Resignal every 10ms the thread if it has not acknowledged the signal via
setting the atomic when the vCPU thread was acknowledged. Further, avoid
an infinite loop by generating an error if it takes more than 1000ms to
interrupt the thread.

The retry helps mitigate a race condition where the signal is received
between checking the pause atomic and entering KVM_RUN ioctl when
pausing. Hitting this race condition would leave the
wait_untial_signal_acknowledged() method spinning indefinitely.

The timeout error avoids the VMM process being blocked indefinitely.

See: #7427

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>

2025-11-11 23:02:00 +00:00

..

src

vmm: cpu: Retry signalling the vCPU thread if it doesn't acknowledge

2025-11-11 23:02:00 +00:00

build.rs

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

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

Cargo.toml

build: Bump the non-rust-vmm group across 2 directories with 25 updates

2025-10-21 09:20:56 +00:00