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[RFC] multiboot ammendment firmware info


From: Vladimir 'phcoder' Serbinenko
Subject: [RFC] multiboot ammendment firmware info
Date: Tue, 1 Sep 2009 17:45:34 +0200

Hello I propose to define following additional structures for multiboot:
If flags[11] is set the field in addresses 88-95 contains an address
of RSDT as defined in ACPI specification
If flags[12] is set the field in addresses 96-103 contains an address
of SMBIOS anchor as defined in DMI specification
If flags[13] is set 2 fields are defined on addresses 104-107 resp 108-116
First field is firmware type
0 - Unknown firmware or firmware unavailable. In this case only
possible communication with firmware if any is possible only through
multiboot information (e.g. vbe control pointer). Second field is in
this case invalid
1 - Coreboot. Does coreboot provides any services other than vbe to
make distinguishing between Coreboot and no firmware wothy?
2 - 32-bit OFW. Second field contains OFW call handle
3 - 64-bit OFW. Second field contains OFW call handle
4 - 32-bit EFI. Second field contains pointer to EFI system table.
5 - 64-bit EFI. Second field contains pointer to EFI system table.
All other values are reserved for future expansion
-- 
Regards
Vladimir 'phcoder' Serbinenko

Personal git repository: http://repo.or.cz/w/grub2/phcoder.git




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