program loading, others

big kernel additions: paging, elf loading, separate kernel and user page allocation
it now properly loads and runs sd0:bin/init.elf
still need to determine which disk was booted from, and start the init on that disk

1 files changed, 17 insertions, 0 deletions

diff --git a/src/kernel/paging.h b/src/kernel/paging.h
new file mode 100644
index 0000000..72400e8
--- /dev/null
+++ b/src/kernel/paging.h
@@ -0,0 +1,17 @@
+#include <stdint.h>
+#include <stdbool.h>
+
+void init_paging();
+
+void *new_pd();
+void free_pd(void *pd);
+void pd_map(void *pd, uint32_t physical_addr, uint32_t virtual_addr, bool writable);
+void switch_pd(void *pd);
+
+void free_task_pd(void *pd);
+void *new_task_pd();
+void *pd_user_allocate(void *pd, uint32_t vma, uint32_t pages, bool writable);
+void *pd_user_allocate_anywhere_writable(void *pd, uint32_t pages);
+
+void switch_to_kernel_cr3();
+void switch_to_task_cr3();
\ No newline at end of file