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Re: [Qemu-devel] [PATCH v2] runstate: add more valid transitions


From: Luiz Capitulino
Subject: Re: [Qemu-devel] [PATCH v2] runstate: add more valid transitions
Date: Tue, 11 Oct 2011 14:52:48 -0300

On Tue, 11 Oct 2011 09:22:42 +0200
Paolo Bonzini <address@hidden> wrote:

> This patch adds more valid transitions to the table, and avoids
> that the VM remains stuck in RSTATE_SAVEVM state when savevm is
> done on a paused virtual machine.
> 
> Signed-off-by: Paolo Bonzini <address@hidden>

Applied to the qmp branch, thanks.

> ---
>  savevm.c |    9 +++++++--
>  vl.c     |    5 +++++
>  2 files changed, 12 insertions(+), 2 deletions(-)
> 
> diff --git a/savevm.c b/savevm.c
> index bf4d0e7..ac45db8 100644
> --- a/savevm.c
> +++ b/savevm.c
> @@ -1626,8 +1626,13 @@ out:
>      if (qemu_file_has_error(f))
>          ret = -EIO;
>  
> -    if (!ret && saved_vm_running)
> -        vm_start();
> +    if (!ret) {
> +        if (saved_vm_running) {
> +            vm_start();
> +     } else {
> +         runstate_set(RSTATE_PAUSED);
> +     }
> +    }
>  
>      return ret;
>  }
> diff --git a/vl.c b/vl.c
> index dbf7778..6614aac 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -343,8 +343,12 @@ static const RunStateTransition 
> runstate_transitions_def[] = {
>      { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
>  
>      { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
> +    { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
> +    { RUN_STATE_PAUSED, RUN_STATE_SAVE_VM },
>  
>      { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
> +    { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
> +    { RUN_STATE_POSTMIGRATE, RUN_STATE_SAVE_VM },
>  
>      { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
>      { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
> @@ -366,6 +370,7 @@ static const RunStateTransition 
> runstate_transitions_def[] = {
>      { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
>  
>      { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
> +    { RUN_STATE_SAVE_VM, RUN_STATE_PAUSED },
>  
>      { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
>  




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