implement map vmo to vmar

src/framework/jinux-frame/src/vm/frame.rs

@@ -15,6 +15,7 @@ use crate::mm::PhysFrame;
 /// type to represent a series of page frames is convenient because,
 /// more often than not, one needs to operate on a batch of frames rather
 /// a single frame.
+#[derive(Debug, Clone)]
 pub struct VmFrameVec(Vec<VmFrame>);
 
 impl VmFrameVec {
@@ -44,6 +45,11 @@ impl VmFrameVec {
         Ok(Self(frame_list))
     }
 
+    /// returns an empty vmframe vec
+    pub fn empty() -> Self {
+        Self(Vec::new())
+    }
+
     /// Pushs a new frame to the collection.
     pub fn push(&mut self, new_frame: VmFrame) {
         self.0.push(new_frame);
@@ -74,6 +80,11 @@ impl VmFrameVec {
         Ok(())
     }
 
+    /// zero all internal vm frames
+    pub fn zero(&self) {
+        self.0.iter().for_each(|vm_frame| vm_frame.zero())
+    }
+
     /// Truncate some frames.
     ///
     /// If `new_len >= self.len()`, then this method has no effect.

src/framework/jinux-frame/src/vm/space.rs

@@ -129,6 +129,7 @@ impl VmIo for VmSpace {
 
 /// Options for mapping physical memory pages into a VM address space.
 /// See `VmSpace::map`.
+#[derive(Clone)]
 pub struct VmMapOptions {
     /// start virtual address
     addr: Option<Vaddr>,