mirror of
https://github.com/RGBCube/serenity
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7e94b090fe
This implements a simple bootloader that is capable of loading ELF64 kernel images. It does this by using QEMU/GRUB to load the kernel image from disk and pass it to our bootloader as a Multiboot module. The bootloader then parses the ELF image and sets it up appropriately. The kernel's entry point is a C++ function with architecture-native code. Co-authored-by: Liav A <liavalb@gmail.com>
27 lines
747 B
C
27 lines
747 B
C
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Platform.h>
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#ifdef __cplusplus
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# include <AK/Types.h>
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#endif
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#define READONLY_AFTER_INIT __attribute__((section(".ro_after_init")))
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#define UNMAP_AFTER_INIT NEVER_INLINE __attribute__((section(".unmap_after_init")))
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#ifdef __cplusplus
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extern "C" FlatPtr kernel_base;
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#endif
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#define KERNEL_PD_END (kernel_base + 0x31000000)
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#define KERNEL_PT1024_BASE (kernel_base + 0x3FE00000)
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#define KERNEL_QUICKMAP_PT (KERNEL_PT1024_BASE + 0x6000)
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#define KERNEL_QUICKMAP_PD (KERNEL_PT1024_BASE + 0x7000)
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#define KERNEL_QUICKMAP_PER_CPU_BASE (KERNEL_PT1024_BASE + 0x8000)
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#define USER_RANGE_CEILING 0xBE000000
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