[LinuxBIOS] Patch for vmlinux amd64 with mkelfImage

[Eric W. Biederman]

yhlu <yinghailu at gmail.com> writes:

> more worse latest one put startup_32 to 0x200000.
>
> and mkelfImage is harded code to call startup_32 or other entry_point
> in bzImage at 0x100000.
>        # Jump to the linux kernel
>        ljmp    $ PROT_CODE_SEG , $ 0x100000
>
> need to make head.S to get into 64bit and use real entry pointer by
> vmlinux and bzImage in elf64 format.

1M for bzImage remains fine.  All bootloaders would break if you
changed that.  But for vmlinux you pretty much have it nailed.

Eric