Re: [Qemu-devel] [RFC PATCH V6 05/18] protect TBContext with tb_lock.

[Paolo Bonzini <pbonzini@redhat.com>]

On 26/06/2015 16:47, fred.konrad@greensocs.com wrote:
>  
> diff --git a/target-arm/translate.c b/target-arm/translate.c
> index 971b6db..47345aa 100644
> --- a/target-arm/translate.c
> +++ b/target-arm/translate.c
> @@ -11162,6 +11162,8 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu,
>  
>      dc->tb = tb;
>  
> +    tb_lock();
> +
>      dc->is_jmp = DISAS_NEXT;
>      dc->pc = pc_start;
>      dc->singlestep_enabled = cs->singlestep_enabled;
> @@ -11499,6 +11501,7 @@ done_generating:
>          tb->size = dc->pc - pc_start;
>          tb->icount = num_insns;
>      }
> +    tb_unlock();
>  }
>  
>  void gen_intermediate_code(CPUARMState *env, TranslationBlock *tb)
> @@ -11567,6 +11570,7 @@ void arm_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
>  
>  void restore_state_to_opc(CPUARMState *env, TranslationBlock *tb, int pc_pos)
>  {
> +    tb_lock();
>      if (is_a64(env)) {
>          env->pc = tcg_ctx.gen_opc_pc[pc_pos];
>          env->condexec_bits = 0;
> @@ -11574,4 +11578,5 @@ void restore_state_to_opc(CPUARMState *env, TranslationBlock *tb, int pc_pos)
>          env->regs[15] = tcg_ctx.gen_opc_pc[pc_pos];
>          env->condexec_bits = gen_opc_condexec_bits[pc_pos];
>      }
> +    tb_unlock();
>  }

Should these instead be added to the callers?

Paolo