Re: [Qemu-devel] [PATCH v2] vl: change runstate only if new state is different from current state

[Li Zhijian]

ping...


Thanks
Li Zhijian

On 04/14/2016 11:25 AM, Li Zhijian wrote:
> Previously, qemu will abort at following scenario:
> (qemu) stop
> (qemu) system_reset
> (qemu) system_reset
> (qemu) 2016-04-13T20:54:38.979158Z qemu-system-x86_64: invalid runstate 
> transition: 'prelaunch' -> 'prelaunch'
>
> Signed-off-by: Li Zhijian <address@hidden>
> Acked-by: Paolo Bonzini <address@hidden>
> ---
> from v1
> - fix patch title typo 'chanage' -> 'change'
> - coding sytle: 'return ;' -> 'return;'
> - add Acked tag
>   vl.c | 4 ++++
>   1 file changed, 4 insertions(+)
>
> diff --git a/vl.c b/vl.c
> index 9df534f..039a353 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -692,6 +692,10 @@ void runstate_set(RunState new_state)
>   {
>       assert(new_state < RUN_STATE__MAX);
>
> +    if (current_run_state == new_state) {
> +        return;
> +    }
> +
>       if (!runstate_valid_transitions[current_run_state][new_state]) {
>           error_report("invalid runstate transition: '%s' -> '%s'",
>                        RunState_lookup[current_run_state],