Messages in this thread | | | Date | Wed, 08 Jun 2011 12:46:04 -0700 | From | Yinghai Lu <> | Subject | Re: 2.6.39.1 immediately reboots/resets on EFI system |
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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.
good, they never test that. just let them to use bootcamp.
> >>> And we need to be able to map the boot services code, so we can't put >>> the kernel on top of it. >> >> after bootloader, those area should be free already. > > That's what the spec says. Reality says differently. We need those > ranges to be available to the kernel until after SetVirtualAddressMap() > has been called, which means we need to avoid putting the kernel on top > of them.
bootloader will load kernel (bzImage) high, and it will decompressed to 16M ram position.
can you call SetVirtualAddressMap before you exit bootloader instead?
Yinghai
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