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Re: [Qemu-ppc] [PATCH v3 3/3] target-ppc: tlbie should have global effec


From: Nikunj A Dadhania
Subject: Re: [Qemu-ppc] [PATCH v3 3/3] target-ppc: tlbie should have global effect
Date: Mon, 12 Sep 2016 11:45:22 +0530
User-agent: Notmuch/0.21 (https://notmuchmail.org) Emacs/25.0.94.1 (x86_64-redhat-linux-gnu)

Benjamin Herrenschmidt <address@hidden> writes:

> On Mon, 2016-09-12 at 11:18 +0530, Nikunj A Dadhania wrote:
>> diff --git a/target-ppc/translate.c b/target-ppc/translate.c
>> index 5026804..d96ff66 100644
>> --- a/target-ppc/translate.c
>> +++ b/target-ppc/translate.c
>> @@ -4448,6 +4448,7 @@ static void gen_tlbie(DisasContext *ctx)
>>  #if defined(CONFIG_USER_ONLY)
>>      GEN_PRIV;
>>  #else
>> +    TCGv_i32 t1;
>>      CHK_HV;
>>  
>>      if (NARROW_MODE(ctx)) {
>> @@ -4458,6 +4459,11 @@ static void gen_tlbie(DisasContext *ctx)
>>      } else {
>>          gen_helper_tlbie(cpu_env, cpu_gpr[rB(ctx->opcode)]);
>>      }
>> +    t1 = tcg_temp_new_i32();
>> +    tcg_gen_ld_i32(t1, cpu_env, offsetof(CPUPPCState, tlb_need_flush));
>> +    tcg_gen_ori_i32(t1, t1, TLB_NEED_GLOBAL_FLUSH);
>> +    tcg_gen_st_i32(t1, cpu_env, offsetof(CPUPPCState, tlb_need_flush));
>> +    tcg_temp_free_i32(t1);
>>  #endif /* defined(CONFIG_USER_ONLY) */
>
> Why not do this in the helper ? 

No particular reason though, I can do it there as well.

Regards
Nikunj




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