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From: | Seth Goldberg |
Subject: | Re: [RFC] multiboot ammendment firmware info |
Date: | Fri, 04 Sep 2009 16:35:39 -0700 (PDT) |
User-agent: | Alpine 2.00 (GSO 1167 2008-08-23) |
Remark 2: In case of EFI booter has to call EfiExitBootServices Another subject for discussion - if OS wants to make calls to EFI from protected mode it has to call set_virtual_address_map and for this it needs information about memory occupied by firmware do we add an additional pointer which contains an array of efi_memory_descriptors describing just the firmware or do we try to add this information to multiboot memory map?
I think including the information in the multiboot memory map is fine as long as there's a flag added that specified that the memory is in use by EFI (if that cannot be done compatibly, a separate memory list is fine).
--S
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