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ladybird/Kernel/BootInfo.h

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Kernel: Move boot info declarations to a header file Instead of manually redeclaring those variables in various files this now adds a header file for them.
2021-07-19 18:54:51 +03:00
/*
* Copyright (c) 2021, Gunnar Beutner <gbeutner@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
Prekernel: Use physical addresses for some of the BootInfo parameters The kernel would just turn those virtual addresses into physical addresses later on, so let's just use physical addresses right from the start.
2021-07-19 19:24:15 +03:00
#include <Kernel/Arch/x86/PageDirectory.h>
#include <Kernel/PhysicalAddress.h>
Kernel: Move boot info declarations to a header file Instead of manually redeclaring those variables in various files this now adds a header file for them.
2021-07-19 18:54:51 +03:00
#include <Kernel/VirtualAddress.h>
Prekernel: Use physical addresses for some of the BootInfo parameters The kernel would just turn those virtual addresses into physical addresses later on, so let's just use physical addresses right from the start.
2021-07-19 19:24:15 +03:00
extern "C" PhysicalAddress start_of_prekernel_image;
extern "C" PhysicalAddress end_of_prekernel_image;
Kernel: Make the kernel independent from specific physical addresses Previously the kernel relied on a fixed offset between virtual and physical addresses based on the kernel's load address. This allows us to specify an independent offset.
2021-07-22 14:05:04 +03:00
extern "C" size_t physical_to_virtual_offset;
Kernel: Rename .boot_bss to .super_pages to better reflect what it is This also removes the section attribute for kernel_base which had no effect because the section wasn't included in the linker script.
2021-07-19 19:52:01 +03:00
extern "C" FlatPtr kernel_base;
Kernel: Move boot info declarations to a header file Instead of manually redeclaring those variables in various files this now adds a header file for them.
2021-07-19 18:54:51 +03:00
#if ARCH(X86_64)
extern "C" u32 gdt64ptr;
extern "C" u16 code64_sel;
Prekernel: Use physical addresses for some of the BootInfo parameters The kernel would just turn those virtual addresses into physical addresses later on, so let's just use physical addresses right from the start.
2021-07-19 19:24:15 +03:00
extern "C" PhysicalAddress boot_pml4t;
Kernel: Move boot info declarations to a header file Instead of manually redeclaring those variables in various files this now adds a header file for them.
2021-07-19 18:54:51 +03:00
#endif
Prekernel: Use physical addresses for some of the BootInfo parameters The kernel would just turn those virtual addresses into physical addresses later on, so let's just use physical addresses right from the start.
2021-07-19 19:24:15 +03:00
extern "C" PhysicalAddress boot_pdpt;
extern "C" PhysicalAddress boot_pd0;
extern "C" PhysicalAddress boot_pd_kernel;
extern "C" Kernel::PageTableEntry* boot_pd_kernel_pt1023;
Kernel: Move boot info declarations to a header file Instead of manually redeclaring those variables in various files this now adds a header file for them.
2021-07-19 18:54:51 +03:00
extern "C" const char* kernel_cmdline;
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