Replace the VMSTOP macros with a proper state type
Today, when notifying a VM state change with vm_state_notify(),we pass a VMSTOP macro as the 'reason' argument. This is not idealbecause the VMSTOP macros tell why qemu stopped and not exactlywhat the current VM state is....
RunState: Add additional states
Currently, only vm_start() and vm_stop() change the VM state.That's, the state is only changed when starting or stopping the VM.
This commit adds the runstate_set() function, which makes it possibleto also do state transitions when the VM is stopped or running....
runstate_set(): Check for valid transitions
This commit could have been folded with the previous one, howeverdoing it separately will allow for easy bisect and revert if needed.
Checking and testing all valid transitions wasn't trivial, chancesare this will need broader testing to become more stable....
Drop the incoming_expected global variable
Test against RSTATE_IN_MIGRATE instead.
Please, note that the RSTATE_IN_MIGRATE state is only set when all theinitial VM setup is done, while 'incoming_expected' was set right inthe beginning when parsing command-line options. Shouldn't be a problem...
Drop the vm_running global variable
Use runstate_is_running() instead, which is introduced by this commit.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Monitor/QMP: Don't allow cont on bad VM state
We have two states where issuing cont before system_reset cancause problems: RSTATE_SHUTDOWN (when -no-shutdown is used) andRSTATE_PANICKED (which only happens with kvm).
This commit fixes that by doing the following when state is...
QMP: query-status: Introduce 'status' key
This new key reports the current VM status to clients. Please, checkthe documentation being added in this commit for more details.
Move vm_state_notify() prototype from cpus.h to sysemu.h
It's where all the state handling functions prototypes are located.
Merge remote-tracking branch 'qemu-kvm-tmp/memory/core' into staging
Merge remote-tracking branch 'aneesh/for-upstream-4' into staging
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