fix: race condition and partial state issue on injecting signal context into user...

[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 4a22cd7fdfa66ce75d3f29036d91dee44cff652d..eab731589745221569db2354440449e4727ab41d 100644 (file)
--- a/lunaix-os/includes/lunaix/mm/vmm.h
+++ b/lunaix-os/includes/lunaix/mm/vmm.h
@@ -6,6 +6,24 @@
 #include <stdint.h>
 // Virtual memory manager
 
 #include <stdint.h>
 // Virtual memory manager
 

+#define VMAP_NULL 0
+/**
+ * @brief 映射模式：忽略已存在映射
+ *
+ */
+#define VMAP_IGNORE 1
+/**
+ * @brief 映射模式：不作实际映射。该功能用于预留出特定的地址空间
+ *
+ */
+#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
  *
 /**
  * @brief 初始化虚拟内存管理器
  *


@@ -31,7 +49,11 @@ vmm_init_pd();
  * @return int
  */
 int
  * @return int
  */
 int

-vmm_set_mapping(uintptr_t mnt, uintptr_t va, uintptr_t pa, pt_attr attr);
+vmm_set_mapping(uintptr_t mnt,
+                uintptr_t va,
+                uintptr_t pa,
+                pt_attr attr,
+                int options);

 
 /**
  * @brief 删除一个映射
 
 /**
  * @brief 删除一个映射


@@ -41,7 +63,7 @@ vmm_set_mapping(uintptr_t mnt, uintptr_t va, uintptr_t pa, pt_attr attr);
  * @param va
  * @return int
  */
  * @param va
  * @return int
  */

-int
+uintptr_t

 vmm_del_mapping(uintptr_t mnt, uintptr_t va);
 
 /**
 vmm_del_mapping(uintptr_t mnt, uintptr_t va);
 
 /**


@@ -62,6 +84,9 @@ vmm_lookup(uintptr_t va, v_mapping* mapping);
 void*
 vmm_dup_page(pid_t pid, void* pa);
 
 void*
 vmm_dup_page(pid_t pid, void* pa);
 

+void*
+vmm_dup_vmspace(pid_t pid);
+

 /**
  * @brief 挂载另一个虚拟地址空间至当前虚拟地址空间
  *
 /**
  * @brief 挂载另一个虚拟地址空间至当前虚拟地址空间
  *


@@ -78,4 +103,7 @@ vmm_mount_pd(uintptr_t mnt, void* pde);
 void*
 vmm_unmount_pd(uintptr_t mnt);
 
 void*
 vmm_unmount_pd(uintptr_t mnt);
 

+void*
+vmm_next_free(uintptr_t start, int options);
+

 #endif /* __LUNAIX_VMM_H */
 #endif /* __LUNAIX_VMM_H */