Re: IA64 memory

From: David Mosberger <davidm_at_napali.hpl.hp.com>
Date: 2005-02-03 17:01:14
>>>>> On Thu, 3 Feb 2005 10:21:42 +0530, Vaibhav Sharma <vaibhav.sh@gmail.com> said:

  Vaibhav> Hi, I am investigating how linux initializes the memory in
  Vaibhav> IA64 machine.  the flow, very broadly (i think) is:
  Vaibhav> **start_kernel-> setup_arch-> find_memory-> efi_memmap_walk
  Vaibhav> ** ( it does all all other things like unwind_init,
  Vaibhav> efi_init, etc, inbetween).  The function efi_memmap_walk
  Vaibhav> uses the "IA64_boot_param" structure to read the memory
  Vaibhav> map. I wanted to know where and how this structure is
  Vaibhav> initialized, I mean how does it access the EFI table.  Are
  Vaibhav> call-backs used to initialize this structure..??..Do these
  Vaibhav> call-backs use the API's to EFI table management...?

The boot-param structure is setup by elilo.

Look for a routine called sysdeps_create_boot_params() in the elilo sources.

	--david
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Received on Thu Feb 3 01:01:40 2005

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