ladybird/Kernel/Prekernel/Prekernel.h
Hendiadyoin1 d3f6b03733 Kernel/riscv64: Take the memory map from the FDT and dump it
For this the BootInfo struct was made architecture specific
2024-02-24 16:43:44 -07:00

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1.5 KiB
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/*
* Copyright (c) 2021, Gunnar Beutner <gbeutner@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#ifdef __cplusplus
# include <Kernel/Boot/Multiboot.h>
# include <Kernel/Memory/PhysicalAddress.h>
# include <Kernel/Memory/VirtualAddress.h>
#endif
#define MAX_KERNEL_SIZE 0x4000000
#define KERNEL_PD_SIZE 0x31000000
// FIXME: This should be using the define from Sections.h, but that currently is not possible
// and causes linker errors, because Sections.h includes BootInfo.h.
#define KERNEL_MAPPING_BASE 0x2000000000
#ifdef __cplusplus
namespace Kernel {
# if ARCH(X86_64)
struct [[gnu::packed]] BootInfo {
u32 start_of_prekernel_image;
u32 end_of_prekernel_image;
u64 physical_to_virtual_offset;
u64 kernel_mapping_base;
u64 kernel_load_base;
u32 gdt64ptr;
u16 code64_sel;
u32 boot_pml4t;
u32 boot_pdpt;
u32 boot_pd0;
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;
};
# elif ARCH(AARCH64)
struct BootInfo { };
# elif ARCH(RISCV64)
struct BootInfo {
FlatPtr mhartid;
PhysicalPtr fdt_phys_addr;
};
# endif
}
#endif