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Prekernel: Use physical addresses for some of the BootInfo parameters

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The kernel would just turn those virtual addresses into physical
addresses later on, so let's just use physical addresses right from the
start.
This commit is contained in:
Gunnar Beutner 2021-07-19 18:24:15 +02:00 • committed by Andreas Kling
parent dd42093b93
commit be795d5812
6 changed files with 58 additions and 59 deletions
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16
Kernel/BootInfo.h
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@ -6,18 +6,20 @@
#pragma once
#include <Kernel/Arch/x86/PageDirectory.h>
#include <Kernel/PhysicalAddress.h>
#include <Kernel/VirtualAddress.h>
extern "C" u8 const* start_of_prekernel_image;
extern "C" u8 const* end_of_prekernel_image;
extern "C" PhysicalAddress start_of_prekernel_image;
extern "C" PhysicalAddress end_of_prekernel_image;
extern "C" __attribute__((section(".boot_bss"))) FlatPtr kernel_base;
#if ARCH(X86_64)
extern "C" u32 gdt64ptr;
extern "C" u16 code64_sel;
extern "C" FlatPtr boot_pml4t;
extern "C" PhysicalAddress boot_pml4t;
#endif
extern "C" FlatPtr boot_pdpt;
extern "C" FlatPtr boot_pd0;
extern "C" FlatPtr boot_pd_kernel;
extern "C" FlatPtr boot_pd_kernel_pt1023;
extern "C" PhysicalAddress boot_pdpt;
extern "C" PhysicalAddress boot_pd0;
extern "C" PhysicalAddress boot_pd_kernel;
extern "C" Kernel::PageTableEntry* boot_pd_kernel_pt1023;
extern "C" const char* kernel_cmdline;