X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm_msr.c;fp=palacios%2Fsrc%2Fpalacios%2Fvmm_msr.c;h=84a149921c2ff1f05296dfcc5f58b3d00dd431a0;hb=5b6278751429f59297ce74e614d50632daea3748;hp=0000000000000000000000000000000000000000;hpb=03a41b18bdb6ce4bf666f18acdaf302e2360efdc;p=palacios.releases.git

diff --git a/palacios/src/palacios/vmm_msr.c b/palacios/src/palacios/vmm_msr.c
new file mode 100644
index 0000000..84a1499
--- /dev/null
+++ b/palacios/src/palacios/vmm_msr.c
@@ -0,0 +1,87 @@
+/* 
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National 
+ * Science Foundation and the Department of Energy.  
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico.  You can find out more at 
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> 
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org> 
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software.  You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
+
+#include <palacios/vmm_msr.h>
+#include <palacios/vmm.h>
+#include <palacios/vm_guest.h>
+
+
+void v3_init_msr_map(struct guest_info * info) {
+  struct v3_msr_map * msr_map  = &(info->msr_map);
+
+  INIT_LIST_HEAD(&(msr_map->hook_list));
+  msr_map->num_hooks = 0;
+}
+
+
+int v3_hook_msr(struct guest_info * info, uint_t msr, 
+		int (*read)(uint_t msr, struct v3_msr * dst, void * priv_data),
+		int (*write)(uint_t msr, struct v3_msr src, void * priv_data),
+		void * priv_data) {
+
+  struct v3_msr_map * msr_map = &(info->msr_map);
+  struct v3_msr_hook * hook = NULL;
+
+  hook = (struct v3_msr_hook *)V3_Malloc(sizeof(struct v3_msr_hook));
+  if (hook == NULL) {
+    PrintError("Could not allocate msr hook for MSR %d\n", msr);
+    return -1;
+  }
+
+  hook->read = read;
+  hook->write = write;
+  hook->msr = msr;
+  hook->priv_data = priv_data;
+
+  list_add(&(hook->link), &(msr_map->hook_list));
+
+  return 0;
+}
+
+
+int v3_unhook_msr(struct guest_info * info, uint_t msr) {
+  return -1;
+}
+
+
+
+struct v3_msr_hook * v3_get_msr_hook(struct guest_info * info, uint_t msr) {
+  struct v3_msr_map * msr_map = &(info->msr_map);
+  struct v3_msr_hook * hook = NULL;
+
+  list_for_each_entry(hook, &(msr_map->hook_list), link) {
+    if (hook->msr == msr) {
+      return hook;
+    }
+  }
+
+  return NULL;
+}
+
+
+void v3_print_msr_map(struct guest_info * info) {
+  struct v3_msr_map * msr_map = &(info->msr_map);
+  struct v3_msr_hook * hook = NULL;
+
+  list_for_each_entry(hook, &(msr_map->hook_list), link) {
+    PrintDebug("MSR HOOK (MSR=%d) (read=0x%p) (write=0x%p)\n",
+	       hook->msr, hook->read, hook->write);
+  }
+}