[Qemu-devel] [PATCH v23 13/32] change block layer to support both QemuOpts and QEMUOptionParamter

[Chunyan Liu <cyliu@suse.com>]

Change block layer to support both QemuOpts and QEMUOptionParameter.
After this patch, it will change backend drivers one by one. At the end,
QEMUOptionParameter will be removed and only QemuOpts is kept.

Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com>
Signed-off-by: Chunyan Liu <cyliu@suse.com>
---
Changes:
  * use new qemu_opts_append(), solving memory leak.
  * unify hanling with QemuOpts, only decide using QEMUOptionParameter or
    QemuOpts till last moment, that is, when calling specific backend
    driver's callback.

 block.c                   | 151 +++++++++++++++++++++++++++++++---------------
 block/cow.c               |   2 +-
 block/qcow.c              |   2 +-
 block/qcow2.c             |   2 +-
 block/qed.c               |   2 +-
 block/raw_bsd.c           |   2 +-
 block/vhdx.c              |   2 +-
 block/vmdk.c              |   4 +-
 block/vvfat.c             |   2 +-
 include/block/block.h     |   7 ++-
 include/block/block_int.h |  11 +++-
 qemu-img.c                |  94 ++++++++++++++---------------
 12 files changed, 170 insertions(+), 111 deletions(-)

diff --git a/block.c b/block.c
index acb70fd..125279c 100644
--- a/block.c
+++ b/block.c
@@ -408,6 +408,7 @@ typedef struct CreateCo {
     BlockDriver *drv;
     char *filename;
     QEMUOptionParameter *options;
+    QemuOpts *opts;
     int ret;
     Error *err;
 } CreateCo;
@@ -419,8 +420,27 @@ static void coroutine_fn bdrv_create_co_entry(void *opaque)
 
     CreateCo *cco = opaque;
     assert(cco->drv);
-
-    ret = cco->drv->bdrv_create(cco->filename, cco->options, &local_err);
+    assert(!(cco->options && cco->opts));
+
+    if (cco->drv->bdrv_create2) {
+        QemuOptsList *opts_list = NULL;
+        QemuOpts *opts = NULL;
+        if (!cco->opts) {
+            opts_list = params_to_opts(cco->options);
+            cco->opts = opts =
+                qemu_opts_create(opts_list, NULL, 0, &error_abort);
+        }
+        ret = cco->drv->bdrv_create2(cco->filename, cco->opts, &local_err);
+        qemu_opts_del(opts);
+        qemu_opts_free(opts_list);
+    } else {
+        QEMUOptionParameter *options = NULL;
+        if (!cco->options) {
+            cco->options = options = opts_to_params(cco->opts);
+        }
+        ret = cco->drv->bdrv_create(cco->filename, cco->options, &local_err);
+        free_option_parameters(options);
+    }
     if (local_err) {
         error_propagate(&cco->err, local_err);
     }
@@ -428,7 +448,8 @@ static void coroutine_fn bdrv_create_co_entry(void *opaque)
 }
 
 int bdrv_create(BlockDriver *drv, const char* filename,
-    QEMUOptionParameter *options, Error **errp)
+                QEMUOptionParameter *options,
+                QemuOpts *opts, Error **errp)
 {
     int ret;
 
@@ -437,11 +458,12 @@ int bdrv_create(BlockDriver *drv, const char* filename,
         .drv = drv,
         .filename = g_strdup(filename),
         .options = options,
+        .opts = opts,
         .ret = NOT_DONE,
         .err = NULL,
     };
 
-    if (!drv->bdrv_create) {
+    if (!drv->bdrv_create && !drv->bdrv_create2) {
         error_setg(errp, "Driver '%s' does not support image creation", drv->format_name);
         ret = -ENOTSUP;
         goto out;
@@ -473,7 +495,7 @@ out:
 }
 
 int bdrv_create_file(const char* filename, QEMUOptionParameter *options,
-                     Error **errp)
+                     QemuOpts *opts, Error **errp)
 {
     BlockDriver *drv;
     Error *local_err = NULL;
@@ -485,7 +507,7 @@ int bdrv_create_file(const char* filename, QEMUOptionParameter *options,
         return -ENOENT;
     }
 
-    ret = bdrv_create(drv, filename, options, &local_err);
+    ret = bdrv_create(drv, filename, options, opts, &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
     }
@@ -1248,7 +1270,8 @@ int bdrv_open(BlockDriverState **pbs, const char *filename,
         BlockDriverState *bs1;
         int64_t total_size;
         BlockDriver *bdrv_qcow2;
-        QEMUOptionParameter *create_options;
+        QemuOptsList *create_opts = NULL;
+        QemuOpts *opts = NULL;
         QDict *snapshot_options;
 
         /* if snapshot, we create a temporary backing file and open it
@@ -1274,13 +1297,20 @@ int bdrv_open(BlockDriverState **pbs, const char *filename,
         }
 
         bdrv_qcow2 = bdrv_find_format("qcow2");
-        create_options = parse_option_parameters("", bdrv_qcow2->create_options,
-                                                 NULL);
 
-        set_option_parameter_int(create_options, BLOCK_OPT_SIZE, total_size);
-
-        ret = bdrv_create(bdrv_qcow2, tmp_filename, create_options, &local_err);
-        free_option_parameters(create_options);
+        assert(!(bdrv_qcow2->create_options && bdrv_qcow2->create_opts));
+        if (bdrv_qcow2->create_options) {
+            create_opts = params_to_opts(bdrv_qcow2->create_options);
+        } else {
+            create_opts = bdrv_qcow2->create_opts;
+        }
+        opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
+        qemu_opt_set_number(opts, BLOCK_OPT_SIZE, total_size);
+        ret = bdrv_create(bdrv_qcow2, tmp_filename, NULL, opts, &local_err);
+        qemu_opts_del(opts);
+        if (bdrv_qcow2->create_options) {
+            qemu_opts_free(create_opts);
+        }
         if (ret < 0) {
             error_setg_errno(errp, -ret, "Could not create temporary overlay "
                              "'%s': %s", tmp_filename,
@@ -5259,8 +5289,10 @@ void bdrv_img_create(const char *filename, const char *fmt,
                      char *options, uint64_t img_size, int flags,
                      Error **errp, bool quiet)
 {
-    QEMUOptionParameter *param = NULL, *create_options = NULL;
-    QEMUOptionParameter *backing_fmt, *backing_file, *size;
+    QemuOptsList *create_opts = NULL;
+    QemuOpts *opts = NULL;
+    const char *backing_fmt, *backing_file;
+    int64_t size;
     BlockDriver *drv, *proto_drv;
     BlockDriver *backing_drv = NULL;
     Error *local_err = NULL;
@@ -5279,28 +5311,25 @@ void bdrv_img_create(const char *filename, const char *fmt,
         return;
     }
 
-    create_options = append_option_parameters(create_options,
-                                              drv->create_options);
-    create_options = append_option_parameters(create_options,
-                                              proto_drv->create_options);
+    create_opts = qemu_opts_append(create_opts, drv->create_opts,
+                                   drv->create_options);
+    create_opts = qemu_opts_append(create_opts, proto_drv->create_opts,
+                                   proto_drv->create_options);
 
     /* Create parameter list with default values */
-    param = parse_option_parameters("", create_options, param);
-
-    set_option_parameter_int(param, BLOCK_OPT_SIZE, img_size);
+    opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
+    qemu_opt_set_number(opts, BLOCK_OPT_SIZE, img_size);
 
     /* Parse -o options */
     if (options) {
-        param = parse_option_parameters(options, create_options, param);
-        if (param == NULL) {
+        if (qemu_opts_do_parse(opts, options, NULL) != 0) {
             error_setg(errp, "Invalid options for file format '%s'.", fmt);
             goto out;
         }
     }
 
     if (base_filename) {
-        if (set_option_parameter(param, BLOCK_OPT_BACKING_FILE,
-                                 base_filename)) {
+        if (qemu_opt_set(opts, BLOCK_OPT_BACKING_FILE, base_filename)) {
             error_setg(errp, "Backing file not supported for file format '%s'",
                        fmt);
             goto out;
@@ -5308,37 +5337,37 @@ void bdrv_img_create(const char *filename, const char *fmt,
     }
 
     if (base_fmt) {
-        if (set_option_parameter(param, BLOCK_OPT_BACKING_FMT, base_fmt)) {
+        if (qemu_opt_set(opts, BLOCK_OPT_BACKING_FMT, base_fmt)) {
             error_setg(errp, "Backing file format not supported for file "
                              "format '%s'", fmt);
             goto out;
         }
     }
 
-    backing_file = get_option_parameter(param, BLOCK_OPT_BACKING_FILE);
-    if (backing_file && backing_file->value.s) {
-        if (!strcmp(filename, backing_file->value.s)) {
+    backing_file = qemu_opt_get(opts, BLOCK_OPT_BACKING_FILE);
+    if (backing_file) {
+        if (!strcmp(filename, backing_file)) {
             error_setg(errp, "Error: Trying to create an image with the "
                              "same filename as the backing file");
             goto out;
         }
     }
 
-    backing_fmt = get_option_parameter(param, BLOCK_OPT_BACKING_FMT);
-    if (backing_fmt && backing_fmt->value.s) {
-        backing_drv = bdrv_find_format(backing_fmt->value.s);
+    backing_fmt = qemu_opt_get(opts, BLOCK_OPT_BACKING_FMT);
+    if (backing_fmt) {
+        backing_drv = bdrv_find_format(backing_fmt);
         if (!backing_drv) {
             error_setg(errp, "Unknown backing file format '%s'",
-                       backing_fmt->value.s);
+                       backing_fmt);
             goto out;
         }
     }
 
     // The size for the image must always be specified, with one exception:
     // If we are using a backing file, we can obtain the size from there
-    size = get_option_parameter(param, BLOCK_OPT_SIZE);
-    if (size && size->value.n == -1) {
-        if (backing_file && backing_file->value.s) {
+    size = qemu_opt_get_size(opts, BLOCK_OPT_SIZE, 0);
+    if (size == -1) {
+        if (backing_file) {
             BlockDriverState *bs;
             uint64_t size;
             char buf[32];
@@ -5349,11 +5378,11 @@ void bdrv_img_create(const char *filename, const char *fmt,
                 flags & ~(BDRV_O_RDWR | BDRV_O_SNAPSHOT | BDRV_O_NO_BACKING);
 
             bs = NULL;
-            ret = bdrv_open(&bs, backing_file->value.s, NULL, NULL, back_flags,
+            ret = bdrv_open(&bs, backing_file, NULL, NULL, back_flags,
                             backing_drv, &local_err);
             if (ret < 0) {
                 error_setg_errno(errp, -ret, "Could not open '%s': %s",
-                                 backing_file->value.s,
+                                 backing_file,
                                  error_get_pretty(local_err));
                 error_free(local_err);
                 local_err = NULL;
@@ -5363,7 +5392,7 @@ void bdrv_img_create(const char *filename, const char *fmt,
             size *= 512;
 
             snprintf(buf, sizeof(buf), "%" PRId64, size);
-            set_option_parameter(param, BLOCK_OPT_SIZE, buf);
+            qemu_opt_set_number(opts, BLOCK_OPT_SIZE, size);
 
             bdrv_unref(bs);
         } else {
@@ -5374,16 +5403,18 @@ void bdrv_img_create(const char *filename, const char *fmt,
 
     if (!quiet) {
         printf("Formatting '%s', fmt=%s ", filename, fmt);
-        print_option_parameters(param);
+        qemu_opts_print(opts);
         puts("");
     }
-    ret = bdrv_create(drv, filename, param, &local_err);
+
+    ret = bdrv_create(drv, filename, NULL, opts, &local_err);
+
     if (ret == -EFBIG) {
         /* This is generally a better message than whatever the driver would
          * deliver (especially because of the cluster_size_hint), since that
          * is most probably not much different from "image too large". */
         const char *cluster_size_hint = "";
-        if (get_option_parameter(create_options, BLOCK_OPT_CLUSTER_SIZE)) {
+        if (qemu_opt_get_size(opts, BLOCK_OPT_CLUSTER_SIZE, 0)) {
             cluster_size_hint = " (try using a larger cluster size)";
         }
         error_setg(errp, "The image size is too large for file format '%s'"
@@ -5393,9 +5424,8 @@ void bdrv_img_create(const char *filename, const char *fmt,
     }
 
 out:
-    free_option_parameters(create_options);
-    free_option_parameters(param);
-
+    qemu_opts_del(opts);
+    qemu_opts_free(create_opts);
     if (local_err) {
         error_propagate(errp, local_err);
     }
@@ -5413,12 +5443,35 @@ void bdrv_add_before_write_notifier(BlockDriverState *bs,
     notifier_with_return_list_add(&bs->before_write_notifiers, notifier);
 }
 
-int bdrv_amend_options(BlockDriverState *bs, QEMUOptionParameter *options)
+int bdrv_amend_options(BlockDriverState *bs, QEMUOptionParameter *options,
+                       QemuOpts *opts)
 {
-    if (bs->drv->bdrv_amend_options == NULL) {
+    int ret;
+    assert(!(options && opts));
+
+    if (!bs->drv->bdrv_amend_options && !bs->drv->bdrv_amend_options2) {
         return -ENOTSUP;
     }
-    return bs->drv->bdrv_amend_options(bs, options);
+    if (bs->drv->bdrv_amend_options2) {
+        QemuOptsList *tmp_opts_list = NULL;
+        QemuOpts *tmp_opts = NULL;
+        if (options) {
+            tmp_opts_list = params_to_opts(options);
+            opts = tmp_opts =
+                qemu_opts_create(tmp_opts_list, NULL, 0, &error_abort);
+        }
+        ret = bs->drv->bdrv_amend_options2(bs, opts);
+        qemu_opts_del(tmp_opts);
+        qemu_opts_free(tmp_opts_list);
+    } else {
+        QEMUOptionParameter *param = NULL;
+        if (opts) {
+            options = param = opts_to_params(opts);
+        }
+        ret = bs->drv->bdrv_amend_options(bs, options);
+        free_option_parameters(param);
+    }
+    return ret;
 }
 
 /* This function will be called by the bdrv_recurse_is_first_non_filter method
diff --git a/block/cow.c b/block/cow.c
index 30deb88..26cf4a5 100644
--- a/block/cow.c
+++ b/block/cow.c
@@ -345,7 +345,7 @@ static int cow_create(const char *filename, QEMUOptionParameter *options,
         options++;
     }
 
-    ret = bdrv_create_file(filename, options, &local_err);
+    ret = bdrv_create_file(filename, options, NULL, &local_err);
     if (ret < 0) {
         error_propagate(errp, local_err);
         return ret;
diff --git a/block/qcow.c b/block/qcow.c
index 1e128be..153b9bd 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -687,7 +687,7 @@ static int qcow_create(const char *filename, QEMUOptionParameter *options,
         options++;
     }
 
-    ret = bdrv_create_file(filename, options, &local_err);
+    ret = bdrv_create_file(filename, options, NULL, &local_err);
     if (ret < 0) {
         error_propagate(errp, local_err);
         return ret;
diff --git a/block/qcow2.c b/block/qcow2.c
index 92d3327..65afbac 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -1504,7 +1504,7 @@ static int qcow2_create2(const char *filename, int64_t total_size,
     Error *local_err = NULL;
     int ret;
 
-    ret = bdrv_create_file(filename, options, &local_err);
+    ret = bdrv_create_file(filename, options, NULL, &local_err);
     if (ret < 0) {
         error_propagate(errp, local_err);
         return ret;
diff --git a/block/qed.c b/block/qed.c
index 3bd9db9..ef5c56c 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -566,7 +566,7 @@ static int qed_create(const char *filename, uint32_t cluster_size,
     int ret = 0;
     BlockDriverState *bs;
 
-    ret = bdrv_create_file(filename, NULL, &local_err);
+    ret = bdrv_create_file(filename, NULL, NULL, &local_err);
     if (ret < 0) {
         error_propagate(errp, local_err);
         return ret;
diff --git a/block/raw_bsd.c b/block/raw_bsd.c
index 01ea692..9ae5fc2 100644
--- a/block/raw_bsd.c
+++ b/block/raw_bsd.c
@@ -145,7 +145,7 @@ static int raw_create(const char *filename, QEMUOptionParameter *options,
     Error *local_err = NULL;
     int ret;
 
-    ret = bdrv_create_file(filename, options, &local_err);
+    ret = bdrv_create_file(filename, options, NULL, &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
     }
diff --git a/block/vhdx.c b/block/vhdx.c
index 5390ba6..d8afb42 100644
--- a/block/vhdx.c
+++ b/block/vhdx.c
@@ -1788,7 +1788,7 @@ static int vhdx_create(const char *filename, QEMUOptionParameter *options,
     block_size = block_size > VHDX_BLOCK_SIZE_MAX ? VHDX_BLOCK_SIZE_MAX :
                                                     block_size;
 
-    ret = bdrv_create_file(filename, options, &local_err);
+    ret = bdrv_create_file(filename, options, NULL, &local_err);
     if (ret < 0) {
         error_propagate(errp, local_err);
         goto exit;
diff --git a/block/vmdk.c b/block/vmdk.c
index b69988d..d87c8f6 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -1525,7 +1525,7 @@ static int vmdk_create_extent(const char *filename, int64_t filesize,
     uint32_t *gd_buf = NULL;
     int gd_buf_size;
 
-    ret = bdrv_create_file(filename, NULL, &local_err);
+    ret = bdrv_create_file(filename, NULL, NULL, &local_err);
     if (ret < 0) {
         error_propagate(errp, local_err);
         goto exit;
@@ -1865,7 +1865,7 @@ static int vmdk_create(const char *filename, QEMUOptionParameter *options,
     if (!split && !flat) {
         desc_offset = 0x200;
     } else {
-        ret = bdrv_create_file(filename, options, &local_err);
+        ret = bdrv_create_file(filename, options, NULL, &local_err);
         if (ret < 0) {
             error_setg_errno(errp, -ret, "Could not create image file");
             goto exit;
diff --git a/block/vvfat.c b/block/vvfat.c
index f966ea5..ee32b3c 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -2926,7 +2926,7 @@ static int enable_write_target(BDRVVVFATState *s)
     set_option_parameter_int(options, BLOCK_OPT_SIZE, s->sector_count * 512);
     set_option_parameter(options, BLOCK_OPT_BACKING_FILE, "fat:");
 
-    ret = bdrv_create(bdrv_qcow, s->qcow_filename, options, &local_err);
+    ret = bdrv_create(bdrv_qcow, s->qcow_filename, options, NULL, &local_err);
     if (ret < 0) {
         qerror_report_err(local_err);
         error_free(local_err);
diff --git a/include/block/block.h b/include/block/block.h
index 1ed55d8..6fc9777 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -177,9 +177,9 @@ BlockDriver *bdrv_find_format(const char *format_name);
 BlockDriver *bdrv_find_whitelisted_format(const char *format_name,
                                           bool readonly);
 int bdrv_create(BlockDriver *drv, const char* filename,
-    QEMUOptionParameter *options, Error **errp);
+    QEMUOptionParameter *options, QemuOpts *opts, Error **errp);
 int bdrv_create_file(const char* filename, QEMUOptionParameter *options,
-                     Error **errp);
+                     QemuOpts *opts, Error **errp);
 BlockDriverState *bdrv_new(const char *device_name);
 void bdrv_make_anon(BlockDriverState *bs);
 void bdrv_swap(BlockDriverState *bs_new, BlockDriverState *bs_old);
@@ -283,7 +283,8 @@ typedef enum {
 
 int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix);
 
-int bdrv_amend_options(BlockDriverState *bs_new, QEMUOptionParameter *options);
+int bdrv_amend_options(BlockDriverState *bs_new, QEMUOptionParameter *options,
+                       QemuOpts *opts);
 
 /* external snapshots */
 bool bdrv_recurse_is_first_non_filter(BlockDriverState *bs,
diff --git a/include/block/block_int.h b/include/block/block_int.h
index cd5bc73..f9d87da 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -118,6 +118,8 @@ struct BlockDriver {
     void (*bdrv_rebind)(BlockDriverState *bs);
     int (*bdrv_create)(const char *filename, QEMUOptionParameter *options,
                        Error **errp);
+    /* FIXME: will remove the duplicate and rename back to bdrv_create later */
+    int (*bdrv_create2)(const char *filename, QemuOpts *opts, Error **errp);
     int (*bdrv_set_key)(BlockDriverState *bs, const char *key);
     int (*bdrv_make_empty)(BlockDriverState *bs);
     /* aio */
@@ -217,7 +219,10 @@ struct BlockDriver {
 
     /* List of options for creating images, terminated by name == NULL */
     QEMUOptionParameter *create_options;
-
+    /* FIXME: will replace create_options.
+     * These two fields are mutually exclusive. At most one is non-NULL.
+     */
+    QemuOptsList *create_opts;
 
     /*
      * Returns 0 for completed check, -errno for internal errors.
@@ -228,6 +233,10 @@ struct BlockDriver {
 
     int (*bdrv_amend_options)(BlockDriverState *bs,
         QEMUOptionParameter *options);
+    /* FIXME: will remove the duplicate and rename back to
+     * bdrv_amend_options later
+     */
+    int (*bdrv_amend_options2)(BlockDriverState *bs, QemuOpts *opts);
 
     void (*bdrv_debug_event)(BlockDriverState *bs, BlkDebugEvent event);
 
diff --git a/qemu-img.c b/qemu-img.c
index 2e40cc1..e78e933 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -235,7 +235,7 @@ static int read_password(char *buf, int buf_size)
 static int print_block_option_help(const char *filename, const char *fmt)
 {
     BlockDriver *drv, *proto_drv;
-    QEMUOptionParameter *create_options = NULL;
+    QemuOptsList *create_opts = NULL;
 
     /* Find driver and parse its options */
     drv = bdrv_find_format(fmt);
@@ -244,21 +244,20 @@ static int print_block_option_help(const char *filename, const char *fmt)
         return 1;
     }
 
-    create_options = append_option_parameters(create_options,
-                                              drv->create_options);
-
+    create_opts = qemu_opts_append(create_opts, drv->create_opts,
+                                   drv->create_options);
     if (filename) {
         proto_drv = bdrv_find_protocol(filename, true);
         if (!proto_drv) {
             error_report("Unknown protocol '%s'", filename);
             return 1;
         }
-        create_options = append_option_parameters(create_options,
-                                                  proto_drv->create_options);
+        create_opts = qemu_opts_append(create_opts, proto_drv->create_opts,
+                                       proto_drv->create_options);
     }
 
-    print_option_help(create_options);
-    free_option_parameters(create_options);
+    qemu_opts_print_help(create_opts);
+    qemu_opts_free(create_opts);
     return 0;
 }
 
@@ -311,19 +310,19 @@ fail:
     return NULL;
 }
 
-static int add_old_style_options(const char *fmt, QEMUOptionParameter *list,
+static int add_old_style_options(const char *fmt, QemuOpts *opts,
                                  const char *base_filename,
                                  const char *base_fmt)
 {
     if (base_filename) {
-        if (set_option_parameter(list, BLOCK_OPT_BACKING_FILE, base_filename)) {
+        if (qemu_opt_set(opts, BLOCK_OPT_BACKING_FILE, base_filename)) {
             error_report("Backing file not supported for file format '%s'",
                          fmt);
             return -1;
         }
     }
     if (base_fmt) {
-        if (set_option_parameter(list, BLOCK_OPT_BACKING_FMT, base_fmt)) {
+        if (qemu_opt_set(opts, BLOCK_OPT_BACKING_FMT, base_fmt)) {
             error_report("Backing file format not supported for file "
                          "format '%s'", fmt);
             return -1;
@@ -1153,8 +1152,9 @@ static int img_convert(int argc, char **argv)
     size_t bufsectors = IO_BUF_SIZE / BDRV_SECTOR_SIZE;
     const uint8_t *buf1;
     BlockDriverInfo bdi;
-    QEMUOptionParameter *param = NULL, *create_options = NULL;
-    QEMUOptionParameter *out_baseimg_param;
+    QemuOpts *opts = NULL;
+    QemuOptsList *create_opts = NULL;
+    const char *out_baseimg_param;
     char *options = NULL;
     const char *snapshot_name = NULL;
     int min_sparse = 8; /* Need at least 4k of zeros for sparse detection */
@@ -1340,40 +1340,36 @@ static int img_convert(int argc, char **argv)
         goto out;
     }
 
-    create_options = append_option_parameters(create_options,
-                                              drv->create_options);
-    create_options = append_option_parameters(create_options,
-                                              proto_drv->create_options);
+    create_opts = qemu_opts_append(create_opts, drv->create_opts,
+                                   drv->create_options);
+    create_opts = qemu_opts_append(create_opts, proto_drv->create_opts,
+                                   proto_drv->create_options);
 
-    if (options) {
-        param = parse_option_parameters(options, create_options, param);
-        if (param == NULL) {
-            error_report("Invalid options for file format '%s'.", out_fmt);
-            ret = -1;
-            goto out;
-        }
-    } else {
-        param = parse_option_parameters("", create_options, param);
+    opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
+    if (options && qemu_opts_do_parse(opts, options, NULL)) {
+        error_report("Invalid options for file format '%s'.", out_fmt);
+        ret = -1;
+        goto out;
     }
 
-    set_option_parameter_int(param, BLOCK_OPT_SIZE, total_sectors * 512);
-    ret = add_old_style_options(out_fmt, param, out_baseimg, NULL);
+    qemu_opt_set_number(opts, BLOCK_OPT_SIZE, total_sectors * 512);
+    ret = add_old_style_options(out_fmt, opts, out_baseimg, NULL);
     if (ret < 0) {
         goto out;
     }
 
     /* Get backing file name if -o backing_file was used */
-    out_baseimg_param = get_option_parameter(param, BLOCK_OPT_BACKING_FILE);
+    out_baseimg_param = qemu_opt_get(opts, BLOCK_OPT_BACKING_FILE);
     if (out_baseimg_param) {
-        out_baseimg = out_baseimg_param->value.s;
+        out_baseimg = out_baseimg_param;
     }
 
     /* Check if compression is supported */
     if (compress) {
-        QEMUOptionParameter *encryption =
-            get_option_parameter(param, BLOCK_OPT_ENCRYPT);
-        QEMUOptionParameter *preallocation =
-            get_option_parameter(param, BLOCK_OPT_PREALLOC);
+        bool encryption =
+            qemu_opt_get_bool(opts, BLOCK_OPT_ENCRYPT, false);
+        const char *preallocation =
+            qemu_opt_get(opts, BLOCK_OPT_PREALLOC);
 
         if (!drv->bdrv_write_compressed) {
             error_report("Compression not supported for this file format");
@@ -1381,15 +1377,15 @@ static int img_convert(int argc, char **argv)
             goto out;
         }
 
-        if (encryption && encryption->value.n) {
+        if (encryption) {
             error_report("Compression and encryption not supported at "
                          "the same time");
             ret = -1;
             goto out;
         }
 
-        if (preallocation && preallocation->value.s
-            && strcmp(preallocation->value.s, "off"))
+        if (preallocation
+            && strcmp(preallocation, "off"))
         {
             error_report("Compression and preallocation not supported at "
                          "the same time");
@@ -1400,7 +1396,7 @@ static int img_convert(int argc, char **argv)
 
     if (!skip_create) {
         /* Create the new image */
-        ret = bdrv_create(drv, out_filename, param, &local_err);
+        ret = bdrv_create(drv, out_filename, NULL, opts, &local_err);
         if (ret < 0) {
             error_report("%s: error while converting %s: %s",
                          out_filename, out_fmt, error_get_pretty(local_err));
@@ -1664,8 +1660,8 @@ out:
         qemu_progress_print(100, 0);
     }
     qemu_progress_end();
-    free_option_parameters(create_options);
-    free_option_parameters(param);
+    qemu_opts_del(opts);
+    qemu_opts_free(create_opts);
     qemu_vfree(buf);
     if (sn_opts) {
         qemu_opts_del(sn_opts);
@@ -2651,7 +2647,8 @@ static int img_amend(int argc, char **argv)
 {
     int c, ret = 0;
     char *options = NULL;
-    QEMUOptionParameter *create_options = NULL, *options_param = NULL;
+    QemuOptsList *create_opts = NULL;
+    QemuOpts *opts = NULL;
     const char *fmt = NULL, *filename;
     bool quiet = false;
     BlockDriverState *bs = NULL;
@@ -2721,17 +2718,16 @@ static int img_amend(int argc, char **argv)
         goto out;
     }
 
-    create_options = append_option_parameters(create_options,
-            bs->drv->create_options);
-    options_param = parse_option_parameters(options, create_options,
-            options_param);
-    if (options_param == NULL) {
+    create_opts = qemu_opts_append(create_opts, bs->drv->create_opts,
+                                   bs->drv->create_options);
+    opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
+    if (options && qemu_opts_do_parse(opts, options, NULL)) {
         error_report("Invalid options for file format '%s'", fmt);
         ret = -1;
         goto out;
     }
 
-    ret = bdrv_amend_options(bs, options_param);
+    ret = bdrv_amend_options(bs, NULL, opts);
     if (ret < 0) {
         error_report("Error while amending options: %s", strerror(-ret));
         goto out;
@@ -2741,8 +2737,8 @@ out:
     if (bs) {
         bdrv_unref(bs);
     }
-    free_option_parameters(create_options);
-    free_option_parameters(options_param);
+    qemu_opts_del(opts);
+    qemu_opts_free(create_opts);
     g_free(options);
 
     if (ret) {
-- 
1.7.12.4