chardev: add stdio support to qapi

[qemu.git] / blockdev.c

diff --git a/blockdev.c b/blockdev.c
index ba3759c849189471adfb0d2532457ab59d63eedf..0e67d0633043be0fbec5f0e84572d8c45fa7d5a1 100644 (file)
--- a/blockdev.c
+++ b/blockdev.c
@@ -391,6 +391,13 @@ DriveInfo *drive_init(QemuOpts *opts, BlockInterfaceType block_default_type)
        }
     }
 
+    if ((buf = qemu_opt_get(opts, "discard")) != NULL) {
+        if (bdrv_parse_discard_flags(buf, &bdrv_flags) != 0) {
+            error_report("invalid discard option");
+            return NULL;
+        }
+    }
+
     bdrv_flags |= BDRV_O_CACHE_WB;
     if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
         if (bdrv_parse_cache_flags(buf, &bdrv_flags) != 0) {
@@ -804,7 +811,7 @@ void qmp_transaction(BlockdevActionList *dev_list, Error **errp)
             bdrv_img_create(new_image_file, format,
                             states->old_bs->filename,
                             states->old_bs->drv->format_name,
-                            NULL, -1, flags, &local_err);
+                            NULL, -1, flags, &local_err, false);
             if (error_is_set(&local_err)) {
                 error_propagate(errp, local_err);
                 goto delete_and_fail;
@@ -1296,7 +1303,7 @@ void qmp_drive_mirror(const char *device, const char *target,
         /* create new image w/o backing file */
         assert(format && drv);
         bdrv_img_create(target, format,
-                        NULL, NULL, NULL, size, flags, &local_err);
+                        NULL, NULL, NULL, size, flags, &local_err, false);
     } else {
         switch (mode) {
         case NEW_IMAGE_MODE_EXISTING:
@@ -1307,7 +1314,7 @@ void qmp_drive_mirror(const char *device, const char *target,
             bdrv_img_create(target, format,
                             source->filename,
                             source->drv->format_name,
-                            NULL, size, flags, &local_err);
+                            NULL, size, flags, &local_err, false);
             break;
         default:
             abort();
@@ -1500,6 +1507,10 @@ QemuOptsList qemu_drive_opts = {
             .name = "file",
             .type = QEMU_OPT_STRING,
             .help = "disk image",
+        },{
+            .name = "discard",
+            .type = QEMU_OPT_STRING,
+            .help = "discard operation (ignore/off, unmap/on)",
         },{
             .name = "cache",
             .type = QEMU_OPT_STRING,