On 01/09/2013 02:02 PM, Jordan Justen wrote:
> On Wed, Jan 9, 2013 at 11:12 AM, David Woodhouse <dw...@infradead.org> wrote:
>> We're supposed to zero everything in the kernel bootparams that we don't
>> explicitly initialise, other than the setup_header from 0x1f1 onwards
>> for a precisely defined length, which is copied from the bzImage.
>>
>> We're *not* supposed to just pass the garbage that we happened to find
>> in the bzImage file surrounding the setup_header.
>
> In which case might this be garbage? A PE/COFF based image?
>
For all kernels. For non-EFI-stub kernels there will be a dummy boot
sector there; there is also garbage *after* the initialized header.
> For non-PE/COFF kernels, will be potentially be zero'ing out valuable
> config information built into the image?
>
No.
-hpa
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