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cpus: vm_resume

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Define the vm_resume helper, for use in subsequent patches.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/1704312341-66640-5-git-send-email-steven.sistare@oracle.com
Signed-off-by: Peter Xu <peterx@redhat.com>
This commit is contained in:
Steve Sistare 2024-01-03 12:05:33 -08:00 • committed by Peter Xu
parent 0f1db069b6
commit 9ff5e79f2e
2 changed files with 18 additions and 0 deletions
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9
include/sysemu/runstate.h
View file

@ -57,6 +57,15 @@ void vm_start(void);
* @step_pending: whether any of the CPUs is about to be single-stepped by gdb * @step_pending: whether any of the CPUs is about to be single-stepped by gdb
*/ */
int vm_prepare_start(bool step_pending); int vm_prepare_start(bool step_pending);
/**
* vm_resume: If @state is a live state, start the vm and set the state,
* else just set the state.
*
* @state: the state to restore
*/
void vm_resume(RunState state);
int vm_stop(RunState state); int vm_stop(RunState state);
int vm_stop_force_state(RunState state); int vm_stop_force_state(RunState state);
int vm_shutdown(void); int vm_shutdown(void);

9
system/cpus.c
View file

@ -748,6 +748,15 @@ void vm_start(void)
} }
} }
void vm_resume(RunState state)
{
if (runstate_is_live(state)) {
vm_start();
} else {
runstate_set(state);
}
}
/* does a state transition even if the VM is already stopped, /* does a state transition even if the VM is already stopped,
current state is forgotten forever */ current state is forgotten forever */
int vm_stop_force_state(RunState state) int vm_stop_force_state(RunState state)