X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm_shadow_paging.c;h=b46469ca86331445f15f60454617dc45bc3c8b48;hb=182f64e4f9b4718aa96f08f8729dc7ef3e642323;hp=33671a7d19e41f13e5391db67d0804c00add4f97;hpb=926e4e742c02e6f1255c8da243494c8bbddbf752;p=palacios.git

diff --git a/palacios/src/palacios/vmm_shadow_paging.c b/palacios/src/palacios/vmm_shadow_paging.c
index 33671a7..b46469c 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;
 
@@ -93,6 +95,11 @@ int V3_init_shdw_paging() {
     return 0;
 }
 
+int V3_deinit_shdw_paging() {
+    v3_free_htable(master_shdw_pg_table, 0, 0);
+    return 0;
+}
+
 
 
 /*** 
@@ -137,19 +144,46 @@ 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 * impl_name = v3_cfg_val(pg_cfg, "mode");
+    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_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)impl_name);
+    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", impl_name);
+	PrintError("Could not find shadow paging impl (%s)\n", pg_strat);
 	return -1;
     }
    
@@ -160,8 +194,16 @@ 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;
 }
@@ -218,9 +260,9 @@ int v3_handle_shadow_invlpg(struct guest_info * core) {
     }
 
     if (v3_get_vm_mem_mode(core) == PHYSICAL_MEM) { 
-	ret = read_guest_pa_memory(core, get_addr_linear(core, core->rip, &(core->segments.cs)), 15, instr);
+	ret = v3_read_gpa_memory(core, get_addr_linear(core, core->rip, &(core->segments.cs)), 15, instr);
     } else { 
-	ret = read_guest_va_memory(core, get_addr_linear(core, core->rip, &(core->segments.cs)), 15, instr);
+	ret = v3_read_gva_memory(core, get_addr_linear(core, core->rip, &(core->segments.cs)), 15, instr);
     }
 
     if (ret == -1) {