Re: [PATCH v2 02/18] loader/linux: support passing rsdp address via boot params

[Juergen Gross <jgross@suse.com>]

On 18/10/2018 16:48, Daniel Kiper wrote:
> On Thu, Oct 18, 2018 at 04:36:28PM +0200, Juergen Gross wrote:
>> On 18/10/2018 16:30, Daniel Kiper wrote:
>>> On Thu, Oct 18, 2018 at 04:18:26PM +0200, Juergen Gross wrote:
>>>> On 18/10/2018 16:13, Daniel Kiper wrote:
>>>>> On Tue, Oct 09, 2018 at 01:03:01PM +0200, Juergen Gross wrote:
>>>>>> Xen PVH guests will have the RSDP at an arbitrary address. Support that
>>>>>> by passing the RSDP address via the boot parameters to Linux.
>>>>>>
>>>>>> The new protocol version 2.14 requires to set version to 0x8000 ored
>>>>>> with the actually use protocol version (the minimum of the kernel
>>>>>> supplied protocol version and the grub2 supported protocol version)
>>>>>> if 2.14 or higher are in effect.
>>>>>>
>>>>>> Signed-off-by: Juergen Gross <jgross@suse.com>
>>>>>> ---
>>>>>> V2: add oring 0x8000 to version field
>>>>>> ---
>>>>>>  grub-core/loader/i386/linux.c | 9 +++++++++
>>>>>>  include/grub/i386/linux.h     | 5 ++++-
>>>>>>  2 files changed, 13 insertions(+), 1 deletion(-)
>>>>>>
>>>>>> diff --git a/grub-core/loader/i386/linux.c b/grub-core/loader/i386/linux.c
>>>>>> index 4eab55a2d..f96309476 100644
>>>>>> --- a/grub-core/loader/i386/linux.c
>>>>>> +++ b/grub-core/loader/i386/linux.c
>>>>>> @@ -35,6 +35,7 @@
>>>>>>  #include <grub/i18n.h>
>>>>>>  #include <grub/lib/cmdline.h>
>>>>>>  #include <grub/linux.h>
>>>>>> +#include <grub/machine/kernel.h>
>>>>>
>>>>> Probably this change belongs to another patch.
>>>>
>>>> I don't think so.
>>>
>>> You do not add anything to this header here and out of the blue you
>>> include it in this file. So, why it is needed here?
>>
>> Ah, now I see your problem.
>>
>> machine/kernel.h will be the header which eventually defines
>> GRUB_KERNEL_USE_RSDP_ADDR.
> 
> So, please move this to the proper patch.

Okay, if you like that better.


Juergen


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