Some minor changes to virtual memory handling

+ Should start to think about how virtual memory should be handled
  efficiently, I'm sort of flailing around and not actually doing
  anything beneficial. The mapping system I've so far implemented
  _works_, but it's not good and I'm not happy with it. I might come
  back and fix/improve it, but I think I'll go ahead and do other things for
  a while, might give me a better overhead view of what the virtual
  memory system should do.

+ TODO: should probably document the memory layout I'm going with at the
  moment.

1 files changed, 8 insertions, 5 deletions

diff --git a/include/apos/init.h b/include/apos/init.h
index 05e24ba..2dd8a27 100644
--- a/include/apos/init.h
+++ b/include/apos/init.h
@@ -2,6 +2,7 @@
 #define APOS_INIT_H
 
 #include <apos/pmem.h>
+#include <apos/vmem.h>
 
 struct init_data_t {
 	pm_t init_base;
@@ -10,6 +11,9 @@ struct init_data_t {
 	pm_t initrd_base;
 	pm_t initrd_top;
 
+	pm_t pmap_base;
+	pm_t pmap_top;
+
 	pm_t fdt_base;
 	pm_t fdt_top;
 
@@ -17,12 +21,11 @@ struct init_data_t {
 	pm_t stack_top;
 
 	struct vm_branch_t *kernel_vm_base;
+	vm_t tmp_pte;
 
-	/*
-	   TODO: is this necessary?
-	   pm_t pmap_base;
-	   pm_t pmap_top;
-	*/
+	size_t max_order;
+	size_t bits[10];
+	size_t page_shift;
 };
 
 #endif /* APOS_INIT_H */