how can grub get `code32

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* how can grub get `code32_start`
@ 2014-11-26  6:53 孙建希
  2014-11-26  7:38 ` Paul Bolle
  0 siblings, 1 reply; 2+ messages in thread
From: 孙建希 @ 2014-11-26  6:53 UTC (permalink / raw)
  To: kernelnewbies

hello,

x86 `protected_mode_jump` will use param
`boot_params.hdr.code32_start`which  bootloader should set. But how can
grub get `code32_start`from kernel image?
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* how can grub get `code32_start`
  2014-11-26  6:53 how can grub get `code32_start` 孙建希
@ 2014-11-26  7:38 ` Paul Bolle
  0 siblings, 0 replies; 2+ messages in thread
From: Paul Bolle @ 2014-11-26  7:38 UTC (permalink / raw)
  To: kernelnewbies

On Wed, 2014-11-26 at 14:53 +0800, ??? wrote:
> But how can grub get `code32_start` from kernel image?

By parsing the kernel image. Documented in great detail in
Documentation/x86/boot.txt.


Paul Bolle

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2014-11-26  6:53 how can grub get `code32_start` 孙建希
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