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- physical memory
- 0x0000 - 0x1000 : GDT for kernel initialization use and some early kernel data
- 0x1000 - 0x2000 : kernel stage1
- 0x2000 - 0x3000 : kernel space PML4
- 0x3000 - 0x4000 : kernel PDPT for physical memory mappings
- 0x4000 - 0x5000 : kernel PDPT for kernel space
- 0x5000 - 0x6000 : kernel PD for kernel image
- 0x6000 - 0x7000 : kernel PT for kernel image
- 0x7000 - 0x8000 : kernel PD for struct page array#1
- 0x100000 - 0x200000 : unused
- 0x200000 - 0x400000 : first kernel bss page (2MB)
- 0x400000 - ? : kernel image
- ? - ? : struct page array
- virtual address space
- 0xffff ff0 000 000 000 - 0xffff ff3 fff fff fff 256GB physical memory (cached)
- 0xffff ff4 000 000 000 - 0xffff ff7 fff fff fff 256GB physical memory (not cached)
- 0xffff ff8 000 000 000 - 0xffff ff8 03f fff fff 1GB unused
- 0xffff ff8 040 000 000 - 0xffff ff8 13f fff fff 4GB struct page array
- 0xffff ff8 140 000 000 - 0xffff ff8 17f fff fff 1GB unused
- 0xffff ff8 180 000 000 - 0xffff ffb fff fff fff 250GB kernel heap
- 0xffff ffc 000 000 000 - 0xffff fff fbf fff fff 255GB unused
- 0xffff fff fc0 000 000 - 0xffff fff fc0 1ff fff 2MB unused
- 0xffff fff fc0 200 000 - 0xffff fff fff 9ff fff 1016MB kernel bss
- 0xffff fff fff a00 000 - 0xffff fff fff bff fff 2MB unused
- 0xffff fff fff c00 000 - 0xffff fff fff dff fff 2MB kernel image
- 0xffff fff fff e00 000 - 0xffff fff fff fff fff 2MB unused
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