[PATCH v5 2/2] powerpc/rtas: Implement reentrant rtas call

[Nicholas Piggin]

Excerpts from Nicholas Piggin's message of May 16, 2020 5:36 pm:
> Excerpts from Leonardo Bras's message of May 16, 2020 3:21 pm:
>> @@ -202,6 +220,7 @@ void __init __nostackprotector initialise_paca(struct paca_struct *new_paca, int
>>  	/* For now -- if we have threads this will be adjusted later */
>>  	new_paca->tcd_ptr = &new_paca->tcd;
>>  #endif
>> +	new_paca->reentrant_args = NULL;
>>  }
>>  
>>  /* Put the paca pointer into r13 and SPRG_PACA */
>> @@ -274,6 +293,7 @@ void __init allocate_paca(int cpu)
>>  #ifdef CONFIG_PPC_BOOK3S_64
>>  	paca->slb_shadow_ptr = new_slb_shadow(cpu, limit);
>>  #endif
>> +	paca->reentrant_args = new_rtas_args(cpu, limit);
> 
> Good, I think tihs should work as you want now. Can you allocate it like 
> lppacas? Put it under PSERIES (and in the paca) and check for !HV?

Oh and while there, could you prefix the name with rtas_?

Thanks,
Nick