VMM - set_page sets 2Mb pages

2018-01-02 11:55:06 +01:00
parent f81e5cd8b0
commit 518eaf73c3
2 changed files with 20 additions and 0 deletions
--- a/src/kernel/memory/vmm.c
+++ b/src/kernel/memory/vmm.c
@@ -49,6 +49,17 @@ uintptr_t vmm_get_page(void *P4, uintptr_t addr)

 int vmm_set_page(void *P4, uintptr_t addr, uintptr_t page, uint16_t flags)
 {
+  if(flags & PAGE_HUGE)
+  {
+    if(!(P4
+          && P4e(P4, addr).present
+          && P3e(P4, addr).present
+        ))
+      return -1;
+    P2e(P4, addr).value = page | flags;
+    return 0;
+  }
+
  if(!page_exists(P4, addr))
    return -1;