Merge tag 'misc-cpus-20231107' of https://github.com/philmd/qemu into staging

[mirror_qemu.git] / blockdev.c

diff --git a/blockdev.c b/blockdev.c
index a01c62596b08f772fdb46bb549452699531eda00..e9b7e38dc41f6e77e9fb81ab940ebdb1a4351953 100644 (file)
--- a/blockdev.c
+++ b/blockdev.c
@@ -255,13 +255,13 @@ void drive_check_orphaned(void)
          * Ignore default drives, because we create certain default
          * drives unconditionally, then leave them unclaimed.  Not the
          * users fault.
-         * Ignore IF_VIRTIO, because it gets desugared into -device,
-         * so we can leave failing to -device.
+         * Ignore IF_VIRTIO or IF_XEN, because it gets desugared into
+         * -device, so we can leave failing to -device.
          * Ignore IF_NONE, because leaving unclaimed IF_NONE remains
          * available for device_add is a feature.
          */
         if (dinfo->is_default || dinfo->type == IF_VIRTIO
-            || dinfo->type == IF_NONE) {
+            || dinfo->type == IF_XEN || dinfo->type == IF_NONE) {
             continue;
         }
         if (!blk_get_attached_dev(blk)) {
@@ -977,6 +977,15 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type,
         qemu_opt_set(devopts, "driver", "virtio-blk", &error_abort);
         qemu_opt_set(devopts, "drive", qdict_get_str(bs_opts, "id"),
                      &error_abort);
+    } else if (type == IF_XEN) {
+        QemuOpts *devopts;
+        devopts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
+                                   &error_abort);
+        qemu_opt_set(devopts, "driver",
+                     (media == MEDIA_CDROM) ? "xen-cdrom" : "xen-disk",
+                     &error_abort);
+        qemu_opt_set(devopts, "drive", qdict_get_str(bs_opts, "id"),
+                     &error_abort);
     }
 
     filename = qemu_opt_get(legacy_opts, "file");
@@ -2968,6 +2977,7 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
 
     if (replaces) {
         BlockDriverState *to_replace_bs;
+        AioContext *aio_context;
         AioContext *replace_aio_context;
         int64_t bs_size, replace_size;
 
@@ -2982,10 +2992,19 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
             return;
         }
 
+        aio_context = bdrv_get_aio_context(bs);
         replace_aio_context = bdrv_get_aio_context(to_replace_bs);
-        aio_context_acquire(replace_aio_context);
+        /*
+         * bdrv_getlength() is a co-wrapper and uses AIO_WAIT_WHILE. Be sure not
+         * to acquire the same AioContext twice.
+         */
+        if (replace_aio_context != aio_context) {
+            aio_context_acquire(replace_aio_context);
+        }
         replace_size = bdrv_getlength(to_replace_bs);
-        aio_context_release(replace_aio_context);
+        if (replace_aio_context != aio_context) {
+            aio_context_release(replace_aio_context);
+        }
 
         if (replace_size < 0) {
             error_setg_errno(errp, -replace_size,
@@ -3382,6 +3401,20 @@ void qmp_block_job_dismiss(const char *id, Error **errp)
     job_dismiss_locked(&job, errp);
 }
 
+void qmp_block_job_change(BlockJobChangeOptions *opts, Error **errp)
+{
+    BlockJob *job;
+
+    JOB_LOCK_GUARD();
+    job = find_block_job_locked(opts->id, errp);
+
+    if (!job) {
+        return;
+    }
+
+    block_job_change_locked(job, opts, errp);
+}
+
 void qmp_change_backing_file(const char *device,
                              const char *image_node_name,
                              const char *backing_file,