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SubjectRe: [PATCH v3 11/12] x86, boot: add fields to support load bzImage and ramdisk high
On 11/24/2012 04:04 PM, Yinghai Lu wrote:
> On Sat, Nov 24, 2012 at 3:50 PM, Eric W. Biederman
> <ebiederm@xmission.com> wrote:
>>
>> I believe all added variables between the last version of the boot
>> protocol /sbin/kexec knows about and the current time were added in the
>> initialized data section. Certainly we can check and that will tell us
>> how likely changes in arch/x86/boot/ have been regressions in the 32bit
>> entry point support.
>>
>> As for solving this there is a simple solution. Add a second jump
>> right after the first jump. The variables after the second jump can
>> all be zero initialized.
>
> could use .org to force start_of_setup start from 0x1000
>
> but how about area before setup_header ? how it is full of EFI_STUB suff there.
>

Yes, it doesn't really solve the problem I fear.

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.



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