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Prekernel: Export some multiboot parameters in our own BootInfo struct

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This allows us to specify virtual addresses for things the kernel should
access via virtual addresses later on. By doing this we can make the
kernel independent from specific physical addresses.
This commit is contained in:
Gunnar Beutner 2021-07-26 15:09:36 +02:00 • committed by Andreas Kling
parent ff292fbe5a
commit b10a86d463
8 changed files with 67 additions and 25 deletions
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12
Kernel/Prekernel/Prekernel.h
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@ -22,7 +22,6 @@ struct [[gnu::packed]] BootInfo {
u32 end_of_prekernel_image;
u64 physical_to_virtual_offset;
u64 kernel_base;
u64 multiboot_info_ptr;
# if ARCH(X86_64)
u32 gdt64ptr;
u16 code64_sel;
@ -33,6 +32,17 @@ struct [[gnu::packed]] BootInfo {
u32 boot_pd_kernel;
u64 boot_pd_kernel_pt1023;
u64 kernel_cmdline;
u32 multiboot_flags;
u64 multiboot_memory_map;
u32 multiboot_memory_map_count;
u64 multiboot_modules;
u32 multiboot_modules_count;
u64 multiboot_framebuffer_addr;
u32 multiboot_framebuffer_pitch;
u32 multiboot_framebuffer_width;
u32 multiboot_framebuffer_height;
u8 multiboot_framebuffer_bpp;
u8 multiboot_framebuffer_type;
};
}
#endif