Lots of pedantic error checking in Palacios proper, especially for memory

[palacios.git] / palacios / src / palacios / vmx_io.c

diff --git a/palacios/src/palacios/vmx_io.c b/palacios/src/palacios/vmx_io.c
index 1dbe95e..1c33f11 100644 (file)
--- a/palacios/src/palacios/vmx_io.c
+++ b/palacios/src/palacios/vmx_io.c
@@ -47,9 +47,17 @@ static int update_map(struct v3_vm_info * vm, uint16_t port, int hook_read, int
 }
 
 int v3_init_vmx_io_map(struct v3_vm_info * vm) {
+    void *temp;
+
     vm->io_map.update_map = update_map;
-    
-    vm->io_map.arch_data = V3_VAddr(V3_AllocPages(2));
+
+    temp = V3_AllocPages(2);
+    if (!temp) {
+       PrintError("Cannot allocate io bitmap\n");
+       return -1;
+    }
+                  
+    vm->io_map.arch_data = V3_VAddr(temp);
     memset(vm->io_map.arch_data, 0xff, PAGE_SIZE_4KB * 2);
 
     v3_refresh_io_map(vm);