[Xen-devel] [Q] GRUB -> __start_xen?

[Bharadwaj Yadavalli <bharadwaj.yadavalli@xxxxxx>]

I am trying to understand the internals of Xen.

On x86 (and may be other architectures), it appears to me 
that xen's entry point is 

         void __init __start_xen(multiboot_info_t *mbi)

that lives in xeno-unstable.bk/xen/arch/x86/setup.c.

1. Who builds the structure mbi and calls __start_xen?
2. How is __satrt_xen registered as the entry point?

Is there a place that I can read to understand the transfer
of control from multiboot GRUB to xen's entry point?

Thanks,

Bharadwaj

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