mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 15:42:44 +00:00
9da62f52a1
This makes it possible to run Serenity with more than 64 MB of RAM. Because each physical page is represented by a PhysicalPage object, and such objects are allocated using kmalloc_eternal(), more RAM means more pressure on kmalloc_eternal(), so we're gonna need a better strategy for this. But for now, let's just celebrate that we can use the 128 MB of RAM we've been telling QEMU to run with. :^)
111 lines
2.5 KiB
C
111 lines
2.5 KiB
C
#pragma once
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#include <AK/Types.h>
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struct multiboot_aout_symbol_table {
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dword tabsize;
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dword strsize;
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dword addr;
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dword reserved;
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};
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typedef struct multiboot_aout_symbol_table multiboot_aout_symbol_table_t;
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struct multiboot_elf_section_header_table {
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dword num;
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dword size;
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dword addr;
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dword shndx;
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};
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typedef struct multiboot_elf_section_header_table multiboot_elf_section_header_table_t;
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#define MULTIBOOT_MEMORY_AVAILABLE 1
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#define MULTIBOOT_MEMORY_RESERVED 2
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#define MULTIBOOT_MEMORY_ACPI_RECLAIMABLE 3
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#define MULTIBOOT_MEMORY_NVS 4
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#define MULTIBOOT_MEMORY_BADRAM 5
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struct multiboot_mmap_entry {
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dword size;
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qword addr;
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qword len;
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dword type;
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} __attribute__((packed));
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typedef struct multiboot_mmap_entry multiboot_memory_map_t;
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struct multiboot_info {
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// Multiboot info version number.
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dword flags;
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// Available memory from BIOS.
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dword mem_lower;
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dword mem_upper;
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// "root" partition.
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dword boot_device;
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// Kernel command line.
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dword cmdline;
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// Boot-Module list.
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dword mods_count;
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dword mods_addr;
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union {
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multiboot_aout_symbol_table_t aout_sym;
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multiboot_elf_section_header_table_t elf_sec;
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} u;
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// Memory Mapping buffer.
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dword mmap_length;
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dword mmap_addr;
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// Drive Info buffer.
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dword drives_length;
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dword drives_addr;
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// ROM configuration table.
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dword config_table;
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// Boot Loader Name.
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dword boot_loader_name;
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// APM table.
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dword apm_table;
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// Video.
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dword vbe_control_info;
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dword vbe_mode_info;
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word vbe_mode;
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word vbe_interface_seg;
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word vbe_interface_off;
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word vbe_interface_len;
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qword framebuffer_addr;
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dword framebuffer_pitch;
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dword framebuffer_width;
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dword framebuffer_height;
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byte framebuffer_bpp;
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#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0
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#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1
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#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2
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byte framebuffer_type;
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union {
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struct
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{
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dword framebuffer_palette_addr;
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word framebuffer_palette_num_colors;
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};
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struct
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{
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byte framebuffer_red_field_position;
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byte framebuffer_red_mask_size;
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byte framebuffer_green_field_position;
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byte framebuffer_green_mask_size;
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byte framebuffer_blue_field_position;
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byte framebuffer_blue_mask_size;
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};
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};
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};
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typedef struct multiboot_info multiboot_info_t;
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extern "C" multiboot_info_t* multiboot_info_ptr;
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