Re: [Qemu-devel] [PATCH 4/4] Disable "info irq" and "info pic" for target-ppc

[Laurent Vivier <lvivier@redhat.com>]

On 29/06/2015 12:06, Andreas Färber wrote:
> Am 29.06.2015 um 11:55 schrieb Laurent Vivier:
>> On 29/06/2015 11:51, Laurent Vivier wrote:
>>> On 29/06/2015 11:30, Thomas Huth wrote:
>>>> On Mon, 29 Jun 2015 09:52:56 +0200
>>>> Laurent Vivier <lvivier@redhat.com> wrote:
>>>>> On 29/06/2015 07:36, David Gibson wrote:
>>>>>> diff --git a/monitor.c b/monitor.c
>>>>>> index aeea2b5..8c56bfa 100644
>>>>>> --- a/monitor.c
>>>>>> +++ b/monitor.c
>>>>>> @@ -2573,7 +2573,7 @@ static mon_cmd_t info_cmds[] = {
>>>>>>          .help       = "show the command line history",
>>>>>>          .mhandler.cmd = hmp_info_history,
>>>>>>      },
>>>>>> -#if defined(TARGET_I386) || defined(TARGET_PPC) || defined(TARGET_MIPS) || \
>>>>>> +#if defined(TARGET_I386) || defined(TARGET_MIPS) || \
>>>>>>      defined(TARGET_LM32) || (defined(TARGET_SPARC) && !defined(TARGET_SPARC64))
>>>>>>      {
>>>>>>          .name       = "irq",
>>>>>>
>>>>>
>>>>> Perhaps we can a use a "#if defined(CONFIG_I8259) ||
>>>>> defined(CONFIG_LM32) || (defined(TARGE_SPARC) &&
>>>>> !defined(TARGET_SPARC64))" instead, so we keep the command for PReP ?
>>>>
>>>> AFAIK this currently won't work since CONFIG_I8259 is only defined for
>>>> the Makefiles, but not for the C pre-processor :-(
>>>
>>> Yes, I see that afterward, but ...
>>>
>>>> So unless somebody fixes that first, I think David's approach is the
>>>> only practicable solution right now.
>>>
>>> if you add "config-devices.h" in GENERATED_HEADERS in Makefile.target,
>>> and include "config-devices.h" in monitor.c, it works (all PREP
>>> dependencies in default-configs/ppc64-softmmu.mak must be removed too)
>>>
>>> But does this change acceptable for a tiny improvement ?
>>
>> In fine, I think we can also do like for sparc:
>>
>> defined(TARGET_PPC) && !defined(TARGET_PPC64)
> 
> Alex specifically requested PReP to be made available in ppc64, too.

Thank you Andreas.

But why ? (I didn't find the answer with google, a link can be helpful).

Is there any 64bit PReP ?

BTW using CONFIG_I8259 cannot enable it only for PReP and not for other
PPC64. So the solution from David is the best.

Laurent