virtio-9p: Create a syntactic shortcut for the file-system pass-thru

[mirror_qemu.git] / qemu-config.c

diff --git a/qemu-config.c b/qemu-config.c
index a2e0193c1d40145d633d6999338cccddb98062bf..d5008851cb26c11d7ccd0fff86c88f01a2b6d97f 100644 (file)
--- a/qemu-config.c
+++ b/qemu-config.c
@@ -151,6 +151,46 @@ QemuOptsList qemu_chardev_opts = {
     },
 };
 
+#ifdef CONFIG_LINUX
+QemuOptsList qemu_fsdev_opts = {
+    .name = "fsdev",
+    .implied_opt_name = "fstype",
+    .head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head),
+    .desc = {
+        {
+            .name = "fstype",
+            .type = QEMU_OPT_STRING,
+        }, {
+            .name = "path",
+            .type = QEMU_OPT_STRING,
+        },
+        { /*End of list */ }
+    },
+};
+#endif
+
+#ifdef CONFIG_LINUX
+QemuOptsList qemu_virtfs_opts = {
+    .name = "virtfs",
+    .implied_opt_name = "fstype",
+    .head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_opts.head),
+    .desc = {
+        {
+            .name = "fstype",
+            .type = QEMU_OPT_STRING,
+        }, {
+            .name = "path",
+            .type = QEMU_OPT_STRING,
+        }, {
+            .name = "mount_tag",
+            .type = QEMU_OPT_STRING,
+        },
+
+        { /*End of list */ }
+    },
+};
+#endif
+
 QemuOptsList qemu_device_opts = {
     .name = "device",
     .implied_opt_name = "driver",
@@ -296,7 +336,7 @@ QemuOptsList qemu_cpudef_opts = {
     },
 };
 
-static QemuOptsList *lists[] = {
+static QemuOptsList *vm_config_groups[] = {
     &qemu_drive_opts,
     &qemu_chardev_opts,
     &qemu_device_opts,
@@ -309,7 +349,7 @@ static QemuOptsList *lists[] = {
     NULL,
 };
 
-static QemuOptsList *find_list(const char *group)
+static QemuOptsList *find_list(QemuOptsList **lists, const char *group)
 {
     int i;
 
@@ -323,6 +363,11 @@ static QemuOptsList *find_list(const char *group)
     return lists[i];
 }
 
+QemuOptsList *qemu_find_opts(const char *group)
+{
+    return find_list(vm_config_groups, group);
+}
+
 int qemu_set_option(const char *str)
 {
     char group[64], id[64], arg[64];
@@ -336,7 +381,7 @@ int qemu_set_option(const char *str)
         return -1;
     }
 
-    list = find_list(group);
+    list = qemu_find_opts(group);
     if (list == NULL) {
         return -1;
     }
@@ -373,23 +418,6 @@ int qemu_global_option(const char *str)
     return 0;
 }
 
-static int qemu_add_one_global(QemuOpts *opts, void *opaque)
-{
-    GlobalProperty *g;
-
-    g = qemu_mallocz(sizeof(*g));
-    g->driver   = qemu_opt_get(opts, "driver");
-    g->property = qemu_opt_get(opts, "property");
-    g->value    = qemu_opt_get(opts, "value");
-    qdev_prop_register_global(g);
-    return 0;
-}
-
-void qemu_add_globals(void)
-{
-    qemu_opts_foreach(&qemu_global_opts, qemu_add_one_global, NULL, 0);
-}
-
 struct ConfigWriteData {
     QemuOptsList *list;
     FILE *fp;
@@ -421,6 +449,7 @@ static int config_write_opts(QemuOpts *opts, void *opaque)
 void qemu_config_write(FILE *fp)
 {
     struct ConfigWriteData data = { .fp = fp };
+    QemuOptsList **lists = vm_config_groups;
     int i;
 
     fprintf(fp, "# qemu config file\n\n");
@@ -430,7 +459,7 @@ void qemu_config_write(FILE *fp)
     }
 }
 
-int qemu_config_parse(FILE *fp, const char *fname)
+int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname)
 {
     char line[1024], group[64], id[64], arg[64], value[1024];
     Location loc;
@@ -451,7 +480,7 @@ int qemu_config_parse(FILE *fp, const char *fname)
         }
         if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) {
             /* group with id */
-            list = find_list(group);
+            list = find_list(lists, group);
             if (list == NULL)
                 goto out;
             opts = qemu_opts_create(list, id, 1);
@@ -459,7 +488,7 @@ int qemu_config_parse(FILE *fp, const char *fname)
         }
         if (sscanf(line, "[%63[^]]]", group) == 1) {
             /* group without id */
-            list = find_list(group);
+            list = find_list(lists, group);
             if (list == NULL)
                 goto out;
             opts = qemu_opts_create(list, NULL, 0);
@@ -472,7 +501,6 @@ int qemu_config_parse(FILE *fp, const char *fname)
                 goto out;
             }
             if (qemu_opt_set(opts, arg, value) != 0) {
-                error_report("failed to set \"%s\" for %s", arg, group);
                 goto out;
             }
             continue;
@@ -489,3 +517,18 @@ out:
     loc_pop(&loc);
     return res;
 }
+
+int qemu_read_config_file(const char *filename)
+{
+    FILE *f = fopen(filename, "r");
+    if (f == NULL) {
+        return -errno;
+    }
+
+    if (qemu_config_parse(f, vm_config_groups, filename) != 0) {
+        return -EINVAL;
+    }
+    fclose(f);
+
+    return 0;
+}