Re: [Xen-devel] [PATCH v4 05/16] libxl/arm: Construct ACPI RSDP table

[Shannon Zhao <zhaoshenglong@xxxxxxxxxx>]

On 2016/8/30 2:05, Julien Grall wrote:
> Hi Shannon,
> 
> On 25/08/2016 04:05, Shannon Zhao wrote:
>>
>>
>> On 2016/8/24 20:52, Wei Liu wrote:
>>> On Tue, Aug 16, 2016 at 06:25:02PM +0800, Shannon Zhao wrote:
>>>>> From: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
>>>>>
>>>>> Construct ACPI RSDP table and add a helper to calculate the ACPI table
>>>>> checksum.
>>>>>
>>>>> Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
>>>>> ---
>>>>>  tools/libxl/libxl_arm_acpi.c | 38
>>>>> ++++++++++++++++++++++++++++++++++++++
>>>>>  1 file changed, 38 insertions(+)
>>>>>
>>>>> diff --git a/tools/libxl/libxl_arm_acpi.c
>>>>> b/tools/libxl/libxl_arm_acpi.c
>>>>> index 6be9eb0..9432e44 100644
>>>>> --- a/tools/libxl/libxl_arm_acpi.c
>>>>> +++ b/tools/libxl/libxl_arm_acpi.c
>>>>> @@ -33,6 +33,9 @@ extern const unsigned char dsdt_anycpu_arm[];
>>>>>  _hidden
>>>>>  extern const int dsdt_anycpu_arm_len;
>>>>>
>>>>> +#define ACPI_BUILD_APPNAME6 "XenARM"
>>>>> +#define ACPI_BUILD_APPNAME4 "Xen "
>>>>> +
>>> Where do these come from? If they are from a spec, could you please add
>>> a comment here?
>>>
>> Not from some spec. Just fake a OEM for these tables like the
>> ACPI_OEM_ID, ACPI_CREATOR_ID used by x86.
> 
> In this case, why don't we re-use the one from x86?
> 
While the ACPI_OEM_TABLE_ID and ACPI_CREATOR_ID of x86 are HVM specific,
I don't think it's proper for ARM.

Thanks,
-- 
Shannon


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