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wip: change memory to have access to page_tables and allocate these dynamically

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0x35c
2024-10-25 15:11:11 +02:00
parent f5147e78f9
commit a9bfb49bb8
7 changed files with 52 additions and 35 deletions
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7
headers/memory.h
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@ -13,7 +13,10 @@
#define PD_SIZE 1024
#define PAGE_MASK 0xFFFFF000
#define HEAP_END 0xC0000000
#define HEAP_START ((uint32_t) & _kernel_end - HEAP_END)
#define PT_START 256
extern uint32_t _kernel_end;
extern uint32_t boot_page_directory;
extern uint32_t *page_directory;
extern uint32_t page_table_default[1024];
@ -22,5 +25,7 @@ uint32_t *virt_to_phys(uint32_t *virt_addr);
void init_memory(void);
void *alloc_frames(size_t size);
int free_frames(void *frame_ptr, size_t size);
void *alloc_pages(size_t size, uint32_t **frame_ptr);
void *alloc_pages(size_t size);
int free_pages(void *page_ptr, size_t size);
void init_page_table(uint32_t page_table[1024], uint16_t start);
int16_t create_page_table(uint16_t pd_index);