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this->kb_page = 3;
this->mb_pages = 5;
this->kernel_pages = 4;

// Setup PML4, PDP, PD, and KB page tables
this->pages[0][0] = (uint64_t)this->pages[1] | 3;
this->pages[1][0] = (uint64_t)this->pages[2] | 3;
this->pages[2][0] = (uint64_t)this->pages[3] | 3;
    
// Setup Kernel map
this->pages[1][3] = (uint64_t)this->pages[this->kernel_pages] | 3;

// Kernel code/data
this->pages[this->kernel_pages][0] = this->kinfo->kernel_addr | 0x83;
this->pages[this->kernel_pages][1] = this->kinfo->kernel_addr + 0x100000 | 0x83;
    
// Kernel heap
this->pages[this->kernel_pages][2] = 0x200083;
this->pages[this->kernel_pages][3] = 0x400083;
this->pages[this->kernel_pages][4] = 0xa00083;
this->pages[this->kernel_pages][5] = 0xc00083;

// Setup heap
//for (size_t i = 0; i < 64; i++) {
//    this->pages[1][4+i] = (uint64_t)this->pages[this->mb_pages+i] | 3;
//}

this->pages[1][4] = (uint64_t)this->pages[this->mb_pages] | 3;
this->pages[1][5] = 0x83;

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typedef uint64_t PageEntry;
typedef PageEntry PageTable[512];
PageTable *pages;

Code: Select all

set_paging(this->pages[0]);

global set_paging
set_paging:
    mov cr3, rdi
    ret