neel 20e3e8762f If a vcpu has issued a HLT instruction with interrupts disabled then it sleeps
forever in vm_handle_hlt().

This is usually not an issue as long as one of the other vcpus properly resets
or powers off the virtual machine. However, if the bhyve(8) process is killed
with a signal the halted vcpu cannot be woken up because it's sleep cannot be
interrupted.

Fix this by waking up periodically and returning from vm_handle_hlt() if
TDF_ASTPENDING is set.

Reported by:	Leon Dang
Sponsored by:	Nahanni Systems
2014-07-26 02:53:51 +00:00
..
2014-07-23 15:53:29 +00:00