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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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22
Kernel/Prekernel/Prekernel.h
View file

@ -8,6 +8,8 @@
#ifdef __cplusplus
# include <Kernel/Multiboot.h>
# include <Kernel/PhysicalAddress.h>
# include <Kernel/VirtualAddress.h>
#endif
#define MAX_KERNEL_SIZE 0x3000000
@ -16,20 +18,20 @@
namespace Kernel {
struct [[gnu::packed]] BootInfo {
u8 const* start_of_prekernel_image;
u8 const* end_of_prekernel_image;
FlatPtr kernel_base;
multiboot_info* multiboot_info_ptr;
u32 start_of_prekernel_image;
u32 end_of_prekernel_image;
u64 kernel_base;
u64 multiboot_info_ptr;
# if ARCH(X86_64)
u32 gdt64ptr;
u16 code64_sel;
FlatPtr boot_pml4t;
u32 boot_pml4t;
# endif
FlatPtr boot_pdpt;
FlatPtr boot_pd0;
FlatPtr boot_pd_kernel;
FlatPtr boot_pd_kernel_pt1023;
char const* kernel_cmdline;
u32 boot_pdpt;
u32 boot_pd0;
u32 boot_pd_kernel;
u64 boot_pd_kernel_pt1023;
u64 kernel_cmdline;
};
}
#endif