Files
acrn-hypervisor/hypervisor/common
Victor Sun ab13228591 HV: ensure valid vcpu state transition
The vcpu state machine transition should follow below rule:

old vcpu state                              new vcpu state
==============                              ==============
VCPU_OFFLINE         --- create_vcpu -->    VCPU_INIT
VCPU_INIT            --- launch_vcpu -->    VCPU_RUNNING
VCPU_RUNNING         ---  pause_vcpu -->    VCPU_PAUSED
VCPU_PAUSED          --- resume_vcpu -->    VCPU_RUNNING
VCPU_RUNNING/PAUSED  ---  pause_vcpu -->    VCPU_ZOMBIE
VCPU_INIT            ---  pause_vcpu -->    VCPU_ZOMBIE
VCPU_ZOMBIE          ---  reset_vcpu -->    VCPU_INIT
VCPU_ZOMBIE          --- offline_vcpu-->    VCPU_OFFLINE

Tracked-On: #4267

Signed-off-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-12-27 12:27:08 +08:00
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