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57417a3d6e
This enables further work on implementing KASLR by adding relocation support to the pre-kernel and updating the kernel to be less dependent on specific virtual memory layouts.
50 lines
1.1 KiB
C++
50 lines
1.1 KiB
C++
/*
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* Copyright (c) 2021, Gunnar Beutner <gbeutner@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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#ifdef __cplusplus
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# include <Kernel/Multiboot.h>
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# include <Kernel/PhysicalAddress.h>
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# include <Kernel/VirtualAddress.h>
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#endif
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#define MAX_KERNEL_SIZE 0x4000000
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#ifdef __cplusplus
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namespace Kernel {
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struct [[gnu::packed]] BootInfo {
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u32 start_of_prekernel_image;
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u32 end_of_prekernel_image;
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u64 physical_to_virtual_offset;
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u64 kernel_mapping_base;
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u64 kernel_load_base;
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# if ARCH(X86_64)
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u32 gdt64ptr;
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u16 code64_sel;
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u32 boot_pml4t;
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# endif
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u32 boot_pdpt;
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u32 boot_pd0;
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u32 boot_pd_kernel;
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u64 boot_pd_kernel_pt1023;
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u64 kernel_cmdline;
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u32 multiboot_flags;
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u64 multiboot_memory_map;
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u32 multiboot_memory_map_count;
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u64 multiboot_modules;
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u32 multiboot_modules_count;
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u64 multiboot_framebuffer_addr;
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u32 multiboot_framebuffer_pitch;
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u32 multiboot_framebuffer_width;
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u32 multiboot_framebuffer_height;
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u8 multiboot_framebuffer_bpp;
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u8 multiboot_framebuffer_type;
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};
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}
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#endif
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