feat: experimental tty console with scrollback buffer.

[lunaix-os.git] / lunaix-os / includes / lunaix / mm / vmm.h

diff --git a/lunaix-os/includes/lunaix/mm/vmm.h b/lunaix-os/includes/lunaix/mm/vmm.h
index bd074c54d41b2466e1455fa7c0e8aee365d6384a..eab731589745221569db2354440449e4727ab41d 100644 (file)
--- a/lunaix-os/includes/lunaix/mm/vmm.h
+++ b/lunaix-os/includes/lunaix/mm/vmm.h
@@ -18,6 +18,12 @@
  */
 #define VMAP_NOMAP 2
 
+/**
+ * @brief 规定下一个可用页映射应当限定在指定的4MB地址空间内
+ *
+ */
+#define VALLOC_PDE 1
+
 /**
  * @brief 初始化虚拟内存管理器
  *
@@ -97,4 +103,7 @@ vmm_mount_pd(uintptr_t mnt, void* pde);
 void*
 vmm_unmount_pd(uintptr_t mnt);
 
+void*
+vmm_next_free(uintptr_t start, int options);
+
 #endif /* __LUNAIX_VMM_H */