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Re: [Qemu-ppc] [PATCH v2 03/20] target-ppc: move back cpu_exec_init() to


From: David Gibson
Subject: Re: [Qemu-ppc] [PATCH v2 03/20] target-ppc: move back cpu_exec_init() to init
Date: Fri, 14 Oct 2016 15:07:51 +1100
User-agent: Mutt/1.7.0 (2016-08-17)

On Thu, Oct 13, 2016 at 06:24:45PM +0200, Laurent Vivier wrote:
> We have now the cpu_exec_realize() in realize,
> so the init part must be in init.
> 
> As cpu_exec_unrealize() is called from cpu_common_finalize(),
> remove the call from ppc_cpu_unrealizefn().
> 
> CC: Bharata B Rao <address@hidden>
> CC: Alexander Graf <address@hidden>
> CC: address@hidden
> Signed-off-by: Laurent Vivier <address@hidden>
> ---
>  target-ppc/translate_init.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
> index 094f28a..bbca8b5 100644
> --- a/target-ppc/translate_init.c
> +++ b/target-ppc/translate_init.c
> @@ -9678,7 +9678,6 @@ static void ppc_cpu_realizefn(DeviceState *dev, Error 
> **errp)
>      }
>  #endif
>  
> -    cpu_exec_init(cs);
>      cpu_exec_realize(cs, &local_err);
>      if (local_err != NULL) {
>          error_propagate(errp, local_err);
> @@ -9911,8 +9910,6 @@ static void ppc_cpu_unrealizefn(DeviceState *dev, Error 
> **errp)
>      opc_handler_t **table, **table_2;
>      int i, j, k;
>  
> -    cpu_exec_unrealize(CPU(dev));
> -

This doesn't seem right.  As you said in 0/20, cpu_exec_unrealize() is
called from cpu_common_finalize().  But finalize should mirror init,
not unrealize().  So it seems that unrealize() really should belong
here, not in finalize.

>      for (i = 0; i < PPC_CPU_OPCODES_LEN; i++) {
>          if (env->opcodes[i] == &invalid_handler) {
>              continue;
> @@ -10435,6 +10432,7 @@ static void ppc_cpu_initfn(Object *obj)
>      CPUPPCState *env = &cpu->env;
>  
>      cs->env_ptr = env;
> +    cpu_exec_init(cs);
>  
>      env->msr_mask = pcc->msr_mask;
>      env->mmu_model = pcc->mmu_model;

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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