Added pure awesomeness

Actually quite some days of work but ok

1 files changed, 47 insertions, 0 deletions

diff --git a/src/kernel/memory/paging.h b/src/kernel/memory/paging.h
new file mode 100644
index 0000000..285cb6f
--- /dev/null
+++ b/src/kernel/memory/paging.h
@@ -0,0 +1,47 @@
+#ifndef MELVIX_PAGING_H
+#define MELVIX_PAGING_H
+
+#include <stdint.h>
+#include <kernel/interrupts/interrupts.h>
+
+typedef struct page {
+    uint32_t present: 1;
+    uint32_t rw: 1;
+    uint32_t user: 1;
+    uint32_t accessed: 1;
+    uint32_t dirty: 1;
+    uint32_t unused: 7;
+    uint32_t frame: 20;
+} page_t;
+
+typedef struct page_table {
+    page_t pages[1024];
+} page_table_t;
+
+typedef struct page_directory {
+    page_table_t *tables[1024];
+    uint32_t tablesPhysical[1024];
+    uint32_t physicalAddr;
+} page_directory_t;
+
+int paging_enabled;
+
+void alloc_frame(page_t *page, int is_kernel, int is_writeable);
+
+void free_frame(page_t *page);
+
+void paging_install();
+
+void switch_page_directory(page_directory_t *new);
+
+void paging_enable();
+
+void paging_disable();
+
+page_t *get_page(uint32_t address, int make, page_directory_t *dir);
+
+void page_fault(struct regs *regs);
+
+page_directory_t *clone_directory(page_directory_t *src);
+
+#endif