X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm_shadow_paging.c;h=4f8804ed4044c26586782a30606ed5dd8594b4d2;hb=9c9370627c5a95e3abaa1b4a6b78f6f5846f53cc;hp=6d6cfec6d0021630c5906119dbfe3bcea3c04eeb;hpb=293e053b9199b12266c628e9737ecbad2d6497ee;p=palacios.git

diff --git a/palacios/src/palacios/vmm_shadow_paging.c b/palacios/src/palacios/vmm_shadow_paging.c
index 6d6cfec..4f8804e 100644
--- a/palacios/src/palacios/vmm_shadow_paging.c
+++ b/palacios/src/palacios/vmm_shadow_paging.c
@@ -47,6 +47,8 @@
 #endif
 
 
+static const char default_strategy[] = "VTLB";
+
 
 static struct hashtable * master_shdw_pg_table = NULL;
 
@@ -137,26 +139,46 @@ int v3_init_shdw_pg_state(struct guest_info * core) {
 }
 
 
+int v3_deinit_shdw_pg_state(struct guest_info * core) {
+    struct v3_shdw_pg_impl * impl = core->vm_info->shdw_impl.current_impl;
+
+    if (impl->local_deinit(core) == -1) {
+	PrintError("Error deinitializing shadow paging state\n");
+	return -1;
+    }
+
+#ifdef CONFIG_SHADOW_PAGING_TELEMETRY
+    v3_remove_telemetry_cb(core->vm_info, telemetry_cb, NULL);
+#endif
+
+    return 0;
+}
+
+
 
 int v3_init_shdw_impl(struct v3_vm_info * vm) {
     struct v3_shdw_impl_state * impl_state = &(vm->shdw_impl);
     v3_cfg_tree_t * pg_cfg = v3_cfg_subtree(vm->cfg_data->cfg, "paging");
-    char * pg_type = v3_cfg_val(vm->cfg_data->cfg, "paging");
     char * pg_mode = v3_cfg_val(pg_cfg, "mode");
+    char * pg_strat = v3_cfg_val(pg_cfg, "strategy");
     struct v3_shdw_pg_impl * impl = NULL;
    
     PrintDebug("Checking if shadow paging requested.\n");
-    if (pg_type && (strcasecmp(pg_type, "nested") == 0)) {
+    if ((pg_mode != NULL) && (strcasecmp(pg_mode, "nested") == 0)) {
 	PrintDebug("Nested paging specified - not initializing shadow paging.\n");
 	return 0;
     }
+
+    if (pg_strat == NULL) {
+	pg_strat = (char *)default_strategy;
+    }
 	
     V3_Print("Initialization of Shadow Paging implementation\n");
 
-    impl = (struct v3_shdw_pg_impl *)v3_htable_search(master_shdw_pg_table, (addr_t)pg_mode);
+    impl = (struct v3_shdw_pg_impl *)v3_htable_search(master_shdw_pg_table, (addr_t)pg_strat);
 
     if (impl == NULL) {
-	PrintError("Could not find shadow paging impl (%s)\n", pg_mode);
+	PrintError("Could not find shadow paging impl (%s)\n", pg_strat);
 	return -1;
     }
    
@@ -167,8 +189,16 @@ int v3_init_shdw_impl(struct v3_vm_info * vm) {
 	return -1;
     }
 
-    
+    return 0;
+}
+
+int v3_deinit_shdw_impl(struct v3_vm_info * vm) {
+    struct v3_shdw_pg_impl * impl = vm->shdw_impl.current_impl;
 
+    if (impl->deinit(vm) == -1) {
+	PrintError("Error deinitializing shadow paging implementation\n");
+	return -1;
+    }
 
     return 0;
 }