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SubjectRe: 2.6.39.1 immediately reboots/resets on EFI system
On 06/08/2011 01:30 PM, Matthew Garrett wrote:
> On Wed, Jun 08, 2011 at 01:23:38PM -0700, Yinghai Lu wrote:
>> On 06/08/2011 01:09 PM, Matthew Garrett wrote:
>>> On Wed, Jun 08, 2011 at 01:03:25PM -0700, Yinghai Lu wrote:
>>>> On 06/08/2011 12:52 PM, Matthew Garrett wrote:
>>>>> On Wed, Jun 08, 2011 at 12:48:48PM -0700, Yinghai Lu wrote:
>>>>>> On 06/08/2011 12:38 PM, Matthew Garrett wrote:
>>>>>>> On Wed, Jun 08, 2011 at 12:35:54PM -0700, Yinghai Lu wrote:
>>>>>>>> On 06/08/2011 12:29 PM, Matthew Garrett wrote:
>>>>>>>>>> what former? you can not fix some corner case by breaking most other cases.
>>>>>>>>>
>>>>>>>>> All Dell laptops, all new Apples, some Lenovos, various Intel server
>>>>>>>>> platforms. That I've found so far.
>>>>>>>>
>>>>>>>> do you mean before that patch, all those machine will not boot linux kernel with UEFI support?
>>>>>>>
>>>>>>> Correct.
>>>>>>
>>>>>> with or without EFI runtime services?
>>>>>
>>>>> They'll boot with noefi, but that's useless because there's then no way
>>>>> to configure a bootloader.
>>>>
>>>> efibootmgr will need boot services in addition to run-time services?
>>>
>>> No, SetVirtualAddressMap() calls into boot services. This is code, not
>>> data. We have no control over what it does.
>>
>> Maybe you can parse efimeminfo in arch/x86/boot/compressed/head_64.S to find right decompress position for kernel.
>
> Hm. I'll take a look into that. Thanks!


or just let bootloader to mark those boot services just like run-time services in e820 table or setupdata?

Yinghai


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