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os-k/boot/folder.desc

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#=----------------------------------------------------------------------------=#
# GNU GPL OS/K #
# #
# Desc: Folder description - "boot" #
# #
# #
# Copyright © 2018-2019 The OS/K Team #
# #
# This file is part of OS/K. #
# #
# OS/K is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# any later version. #
# #
# OS/K is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY# without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with OS/K. If not, see <https://www.gnu.org/licenses/>. #
#=----------------------------------------------------------------------------=#
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This folder contains the source for OS/K's early loader.
OS/K being intended to only run on x86-64 systems, we have not divided
this folder into one sub-folder per architecture.
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The bootloader itself is external to the OS/K project. We are using GRUB 2 to
load our kernel loader in memory.
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The kernel loader, that we call the loader, is the main subject of this folder.
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This loader is linked whith the kernel and loaded by Grub at the specified
address and prepare it for the hard work it have to do :
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- Check the multiboot state
- Check if CPUID and long mode is supported
- Send a structure for it with memory map, cpu infos, and other devices
infos, prepared by GRUB.
- Switch into long mode