Make V3_Yield and V3_Yield_Timed macros globally visible as non-guest-associated...

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

diff --git a/palacios/src/palacios/vmm_extensions.c b/palacios/src/palacios/vmm_extensions.c
index de1cfa0..b46af1b 100644 (file)
--- a/palacios/src/palacios/vmm_extensions.c
+++ b/palacios/src/palacios/vmm_extensions.c
@@ -26,6 +26,14 @@
 
 static struct hashtable * ext_table = NULL;
 
+/*
+ * This is a place holder to ensure that the _v3_extensions section gets created by gcc
+ */
+static struct {} null_ext  __attribute__((__used__))                    \
+    __attribute__((unused, __section__ ("_v3_extensions"),                \
+                   aligned(sizeof(addr_t))));
+
+
 
 static uint_t ext_hash_fn(addr_t key) {
     char * name = (char *)key;
@@ -69,6 +77,8 @@ int V3_init_extensions() {
 }
 
 
+
+
 int V3_deinit_extensions() {
     v3_free_htable(ext_table, 0, 0);
     return 0;
@@ -85,6 +95,15 @@ int v3_init_ext_manager(struct v3_vm_info * vm) {
     return 0;
 }
 
+
+int v3_deinit_ext_manager(struct v3_vm_info * vm)  {
+
+       PrintError("I should really do something here... \n");
+       return -1;
+}
+
+
+
 int v3_add_extension(struct v3_vm_info * vm, const char * name, v3_cfg_tree_t * cfg) {
     struct v3_extension_impl * impl = NULL;
     struct v3_extension * ext = NULL;
@@ -125,3 +144,34 @@ int v3_add_extension(struct v3_vm_info * vm, const char * name, v3_cfg_tree_t *
     
     return 0;
 }
+
+int v3_init_core_extensions(struct guest_info * core) {
+    struct v3_extension * ext = NULL;
+
+    list_for_each_entry(ext, &(core->vm_info->extensions.extensions), node) {
+       if ((ext->impl) && (ext->impl->core_init)) {
+           if (ext->impl->core_init(core, ext->priv_data) == -1) {
+               PrintError("Error configuring per core extension %s on core %d\n", 
+                          ext->impl->name, core->vcpu_id);
+               return -1;
+           }
+       }
+    }
+
+    return 0;
+}
+
+
+
+
+void * v3_get_extension_state(struct v3_vm_info * vm, const char * name) {
+    struct v3_extension * ext = NULL;
+
+    list_for_each_entry(ext, &(vm->extensions.extensions), node) {
+       if (strncmp(ext->impl->name, name, strlen(ext->impl->name)) == 0) {
+           return ext->priv_data;
+       }
+    }
+
+    return NULL;
+}