X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=linux_module%2Fbuddy.h;h=e0ef86dfd1f79ec1d27ed07dbeddeea2885484c6;hb=97126b352ec28abf6c6d8ec3883f0179a7d431c1;hp=54c24a72e4f0dc95c7979745a627f88fbbd5af01;hpb=a61cac5cf9cf6beb6dccec02b94bb5a37429e7fb;p=palacios.git

diff --git a/linux_module/buddy.h b/linux_module/buddy.h
index 54c24a7..e0ef86d 100644
--- a/linux_module/buddy.h
+++ b/linux_module/buddy.h
@@ -48,6 +48,8 @@ struct buddy_mempool {
 				    */
 
     unsigned long num_free_blocks;
+    
+    void             *user_metadata; // whatever the user wants
 
     struct rb_node tree_node;
 };
@@ -71,30 +73,37 @@ buddy_init(unsigned long pool_order,
 	   unsigned int node_id);
 
 extern void 
-buddy_deinit(struct buddy_memzone * zone);
+buddy_deinit(struct buddy_memzone * zone,
+	     int (*free_callback)(void *user_metadata));
 
 /* Add pool at given physical address */
 extern int 
 buddy_add_pool(struct buddy_memzone * zone, 
 	       unsigned long base_addr, 
-	       unsigned long pool_order);
+	       unsigned long pool_order,
+	       void          *user_metadata);
 			  
 
 /* Remove pool based at given physical address */
 extern int
 buddy_remove_pool(struct buddy_memzone * zone, 
 		  unsigned long base_addr, 
-		  unsigned char force);
+		  unsigned char force,
+		  void          **user_metadata);
+
 
+// constraint=0 => no constraints, otherwise bitmask of:
+#define LWK_BUDDY_CONSTRAINT_4GB 0x1
 
 /* Allocate pages, returns physical address */
 extern uintptr_t 
 buddy_alloc(struct buddy_memzone * zone,
-	    unsigned long order);
+	    unsigned long order,
+	    int constraints);
 
 
 /* Free a physical address */
-extern void
+extern int
 buddy_free(struct buddy_memzone * zone,
 	   uintptr_t  addr,
 	   unsigned long order);