Hi Miao,

On Wed, Jan 20, 2016 at 5:26 PM, Miao Yan <yanmiaob...@gmail.com> wrote:
> Hi Bin,
>
> 2016-01-20 17:18 GMT+08:00 Bin Meng <bmeng...@gmail.com>:
>> Hi Miao,
>>
>> On Wed, Jan 20, 2016 at 5:15 PM, Miao Yan <yanmiaob...@gmail.com> wrote:
>>> Hi Bin,
>>>
>>> 2016-01-20 16:46 GMT+08:00 Bin Meng <bmeng...@gmail.com>:
>>>> On Wed, Jan 20, 2016 at 12:24 PM, Miao Yan <yanmiaob...@gmail.com> wrote:
>>>>> This patch adds a config option for loading ACPI table from QEMU. When 
>>>>> enabled,
>>>>> U-Boot won't generate ACPI tables, but use those provided by QEMU.
>>>>>
>>>>> Signed-off-by: Miao Yan <yanmiaob...@gmail.com>
>>>>> ---
>>>>>  arch/x86/Kconfig           | 9 +++++++++
>>>>>  arch/x86/cpu/qemu/Makefile | 2 ++
>>>>>  arch/x86/lib/Makefile      | 2 ++
>>>>>  3 files changed, 13 insertions(+)
>>>>>
>>>>
>>>> Reviewed-by: Bin Meng <bmeng...@gmail.com>
>>>> Tested-by: Bin Meng <bmeng...@gmail.com>
>>>>
>>>> But please see one nits below:
>>>>
>>>>> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
>>>>> index f07567c..26c8d83 100644
>>>>> --- a/arch/x86/Kconfig
>>>>> +++ b/arch/x86/Kconfig
>>>>> @@ -358,6 +358,15 @@ config GENERATE_ACPI_TABLE
>>>>>           by the operating system. It defines platform-independent 
>>>>> interfaces
>>>>>           for configuration and power management monitoring.
>>>>>
>>>>> +config QEMU_ACPI_TABLE
>>>>> +       bool "load ACPI table from QEMU fw_cfg interface"
>>>>
>>>> nits: load -> Load
>>>>
>>>> I can fix this when applying.
>>>
>>> Thanks, I just found this patch breaks git bisect, I'll submit v3 to
>>> fix this as well as the typo.
>>>
>>>
>>
>> Uh, I've tested building your patches via buildman, no errors. What do you 
>> see?
>
> If you enable CONFIG_GENERATE_ACPI_TABLE and QEMU_ACPI_TABLE, you'll see:
>
> arch/x86/lib/built-in.o: In function `write_tables':
> /home/myan/work/u-boot-x86/arch/x86/lib/tables.c:57: undefined
> reference to `write_acpi_tables'
> make: *** [u-boot] Error
>
> Because write_acpi_tables() are defined in [PATCH 0/4]. With default
> config you won't see it. Is this OK ?
>

Ah, yes! buildman only builds with default configuration so it is not
exposed. So I assume you may defer the Makefile changes to patch#4.
Thanks for pointing this out!

Regards,
Bin
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