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core: setup recusive paging in boot.s

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Starnakin
2025-11-28 16:20:31 +01:00
parent 7819b4a02d
commit 5591120deb
1 changed files with 4 additions and 0 deletions
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src/boot.s
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@ -93,6 +93,10 @@ _start:
movl $(boot_page_table1 - 0xC0000000 + 0x003), boot_page_directory - 0xC0000000 + 0 movl $(boot_page_table1 - 0xC0000000 + 0x003), boot_page_directory - 0xC0000000 + 0
movl $(boot_page_table1 - 0xC0000000 + 0x003), boot_page_directory - 0xC0000000 + 768 * 4 movl $(boot_page_table1 - 0xC0000000 + 0x003), boot_page_directory - 0xC0000000 + 768 * 4
# Map the recusive paging
movl $(boot_page_directory - 0xC0000000 + 0x003), boot_page_directory - 0xC0000000 + 1023 * 4
# Set cr3 to the address of the boot_page_directory. # Set cr3 to the address of the boot_page_directory.
movl $(boot_page_directory - 0xC0000000), %ecx movl $(boot_page_directory - 0xC0000000), %ecx
movl %ecx, %cr3 movl %ecx, %cr3