From 9ff5e79f2ec0be3e2d7d81c41b33cbfeac393d99 Mon Sep 17 00:00:00 2001 From: Steve Sistare Date: Wed, 3 Jan 2024 12:05:33 -0800 Subject: [PATCH] cpus: vm_resume Define the vm_resume helper, for use in subsequent patches. Signed-off-by: Steve Sistare Reviewed-by: Peter Xu Link: https://lore.kernel.org/r/1704312341-66640-5-git-send-email-steven.sistare@oracle.com Signed-off-by: Peter Xu --- include/sysemu/runstate.h | 9 +++++++++ system/cpus.c | 9 +++++++++ 2 files changed, 18 insertions(+) diff --git a/include/sysemu/runstate.h b/include/sysemu/runstate.h index 618eb491af..0117d243c4 100644 --- a/include/sysemu/runstate.h +++ b/include/sysemu/runstate.h @@ -57,6 +57,15 @@ void vm_start(void); * @step_pending: whether any of the CPUs is about to be single-stepped by gdb */ 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_force_state(RunState state); int vm_shutdown(void); diff --git a/system/cpus.c b/system/cpus.c index f162435dd4..7d2c28b1d1 100644 --- a/system/cpus.c +++ b/system/cpus.c @@ -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, current state is forgotten forever */ int vm_stop_force_state(RunState state)