Re: [Qemu-devel] [PATCH 2/3] hd-geometry.c/s390: Disable geometry translation

[Christian Borntraeger <borntraeger@de.ibm.com>]

On 18/11/12 20:14, Blue Swirl wrote:
> On Sun, Nov 18, 2012 at 4:10 PM, Paolo Bonzini <pbonzini@redhat.com> wrote:
>> Il 17/11/2012 17:07, Blue Swirl ha scritto:
>>> On Tue, Nov 13, 2012 at 8:50 AM, Christian Borntraeger
>>> <borntraeger@de.ibm.com> wrote:
>>>> From: Einar Lueck <elelueck@linux.vnet.ibm.com>
>>>>
>>>> This patch disables the translation of geometry information read from
>>>> disks on s390. On s390 such translations lead to wrong geometries being
>>>> advertized to the guest because there is no entity doing these kinds
>>>> of translation on this architecture.
>>>>
>>>> Signed-off-by Einar Lueck <elelueck@linux.vnet.ibm.com>
>>>> Signed-off-by Christian Borntraeger <borntraeger@de.ibm.com>
>>>> ---
>>>>  hw/hd-geometry.c |    5 +++++
>>>>  1 file changed, 5 insertions(+)
>>>>
>>>> diff --git a/hw/hd-geometry.c b/hw/hd-geometry.c
>>>> index 4cf040d..db1dc81 100644
>>>> --- a/hw/hd-geometry.c
>>>> +++ b/hw/hd-geometry.c
>>>> @@ -144,6 +144,10 @@ static int guess_disk_msdosgeo(BlockDriverState *bs,
>>>>                  continue;
>>>>              }
>>>>
>>>> +#ifdef __s390__
>>>
>>> No, this would make all system emulators (e.g. x86) on s390 host to
>>> use this translation, not just s390. I think you want to use #ifdef
>>> CONFIG_S390X instead.
>>
>> This symbol is not available because this file is compiled just once.
>> Which non-x86 targets actually care about translation stuff?
> 
> I meant TARGET_S390X, sorry. I have no idea, but hosts and targets
> should not be confused.

Would a modified patch with TARGET_S390X be acceptable?