]> Git Repo - qemu.git/blobdiff - blockdev.c
spapr_rng: Convert to DEFINE_PROP_LINK
[qemu.git] / blockdev.c
index c63f4e82c7448527221acfaad425bcc484f0f166..9c6dd270b7c4f27cddb91ab56d6877e9d7e94c5f 100644 (file)
@@ -50,6 +50,7 @@
 #include "qmp-commands.h"
 #include "block/trace.h"
 #include "sysemu/arch_init.h"
+#include "sysemu/qtest.h"
 #include "qemu/cutils.h"
 #include "qemu/help_option.h"
 #include "qemu/throttle-options.h"
@@ -334,8 +335,9 @@ static bool parse_stats_intervals(BlockAcctStats *stats, QList *intervals,
             break;
         }
 
-        case QTYPE_QINT: {
-            int64_t length = qint_get_int(qobject_to_qint(entry->value));
+        case QTYPE_QNUM: {
+            int64_t length = qnum_get_int(qobject_to_qnum(entry->value));
+
             if (length > 0 && length <= UINT_MAX) {
                 block_acct_add_interval(stats, (unsigned) length);
             } else {
@@ -591,11 +593,7 @@ static BlockBackend *blockdev_init(const char *file, QDict *bs_opts,
 
         bs->detect_zeroes = detect_zeroes;
 
-        if (bdrv_key_required(bs)) {
-            autostart = 0;
-        }
-
-        block_acct_init(blk_get_stats(blk), account_invalid, account_failed);
+        block_acct_setup(blk_get_stats(blk), account_invalid, account_failed);
 
         if (!parse_stats_intervals(blk_get_stats(blk), interval_list, errp)) {
             blk_unref(blk);
@@ -797,6 +795,9 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
     const char *filename;
     Error *local_err = NULL;
     int i;
+    const char *deprecated[] = {
+        "serial", "trans", "secs", "heads", "cyls", "addr"
+    };
 
     /* Change legacy command line options into QMP ones */
     static const struct {
@@ -880,6 +881,16 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
                 "update your scripts.\n");
     }
 
+    /* Other deprecated options */
+    if (!qtest_enabled()) {
+        for (i = 0; i < ARRAY_SIZE(deprecated); i++) {
+            if (qemu_opt_get(legacy_opts, deprecated[i]) != NULL) {
+                error_report("'%s' is deprecated, please use the corresponding "
+                             "option of '-device' instead", deprecated[i]);
+            }
+        }
+    }
+
     /* Media type */
     value = qemu_opt_get(legacy_opts, "media");
     if (value) {
@@ -1362,12 +1373,10 @@ out_aio_context:
 static BdrvDirtyBitmap *block_dirty_bitmap_lookup(const char *node,
                                                   const char *name,
                                                   BlockDriverState **pbs,
-                                                  AioContext **paio,
                                                   Error **errp)
 {
     BlockDriverState *bs;
     BdrvDirtyBitmap *bitmap;
-    AioContext *aio_context;
 
     if (!node) {
         error_setg(errp, "Node cannot be NULL");
@@ -1383,29 +1392,17 @@ static BdrvDirtyBitmap *block_dirty_bitmap_lookup(const char *node,
         return NULL;
     }
 
-    aio_context = bdrv_get_aio_context(bs);
-    aio_context_acquire(aio_context);
-
     bitmap = bdrv_find_dirty_bitmap(bs, name);
     if (!bitmap) {
         error_setg(errp, "Dirty bitmap '%s' not found", name);
-        goto fail;
+        return NULL;
     }
 
     if (pbs) {
         *pbs = bs;
     }
-    if (paio) {
-        *paio = aio_context;
-    } else {
-        aio_context_release(aio_context);
-    }
 
     return bitmap;
-
- fail:
-    aio_context_release(aio_context);
-    return NULL;
 }
 
 /* New and old BlockDriverState structs for atomic group operations */
@@ -1791,7 +1788,7 @@ static void external_snapshot_commit(BlkActionState *common)
     /* We don't need (or want) to use the transactional
      * bdrv_reopen_multiple() across all the entries at once, because we
      * don't want to abort all of them if one of them fails the reopen */
-    if (!state->old_bs->copy_on_read) {
+    if (!atomic_read(&state->old_bs->copy_on_read)) {
         bdrv_reopen(state->old_bs, state->old_bs->open_flags & ~BDRV_O_RDWR,
                     NULL);
     }
@@ -1803,7 +1800,11 @@ static void external_snapshot_abort(BlkActionState *common)
                              DO_UPCAST(ExternalSnapshotState, common, common);
     if (state->new_bs) {
         if (state->overlay_appended) {
+            bdrv_ref(state->old_bs);   /* we can't let bdrv_set_backind_hd()
+                                          close state->old_bs; we need it */
+            bdrv_set_backing_hd(state->new_bs, NULL, &error_abort);
             bdrv_replace_node(state->new_bs, state->old_bs, &error_abort);
+            bdrv_unref(state->old_bs); /* bdrv_replace_node() ref'ed old_bs */
         }
     }
 }
@@ -1982,6 +1983,8 @@ static void block_dirty_bitmap_add_prepare(BlkActionState *common,
     /* AIO context taken and released within qmp_block_dirty_bitmap_add */
     qmp_block_dirty_bitmap_add(action->node, action->name,
                                action->has_granularity, action->granularity,
+                               action->has_persistent, action->persistent,
+                               action->has_autoload, action->autoload,
                                &local_err);
 
     if (!local_err) {
@@ -2021,7 +2024,6 @@ static void block_dirty_bitmap_clear_prepare(BlkActionState *common,
     state->bitmap = block_dirty_bitmap_lookup(action->node,
                                               action->name,
                                               &state->bs,
-                                              &state->aio_context,
                                               errp);
     if (!state->bitmap) {
         return;
@@ -2033,6 +2035,9 @@ static void block_dirty_bitmap_clear_prepare(BlkActionState *common,
     } else if (!bdrv_dirty_bitmap_enabled(state->bitmap)) {
         error_setg(errp, "Cannot clear a disabled bitmap");
         return;
+    } else if (bdrv_dirty_bitmap_readonly(state->bitmap)) {
+        error_setg(errp, "Cannot clear a readonly bitmap");
+        return;
     }
 
     bdrv_clear_dirty_bitmap(state->bitmap, &state->backup);
@@ -2261,24 +2266,8 @@ void qmp_block_passwd(bool has_device, const char *device,
                       bool has_node_name, const char *node_name,
                       const char *password, Error **errp)
 {
-    Error *local_err = NULL;
-    BlockDriverState *bs;
-    AioContext *aio_context;
-
-    bs = bdrv_lookup_bs(has_device ? device : NULL,
-                        has_node_name ? node_name : NULL,
-                        &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return;
-    }
-
-    aio_context = bdrv_get_aio_context(bs);
-    aio_context_acquire(aio_context);
-
-    bdrv_add_key(bs, password, errp);
-
-    aio_context_release(aio_context);
+    error_setg(errp,
+               "Setting block passwords directly is no longer supported");
 }
 
 /*
@@ -2587,12 +2576,6 @@ void qmp_blockdev_change_medium(bool has_device, const char *device,
         goto fail;
     }
 
-    bdrv_add_key(medium_bs, NULL, &err);
-    if (err) {
-        error_propagate(errp, err);
-        goto fail;
-    }
-
     rc = do_open_tray(has_device ? device : NULL,
                       has_id ? id : NULL,
                       false, &err);
@@ -2727,10 +2710,12 @@ out:
 
 void qmp_block_dirty_bitmap_add(const char *node, const char *name,
                                 bool has_granularity, uint32_t granularity,
+                                bool has_persistent, bool persistent,
+                                bool has_autoload, bool autoload,
                                 Error **errp)
 {
-    AioContext *aio_context;
     BlockDriverState *bs;
+    BdrvDirtyBitmap *bitmap;
 
     if (!name || name[0] == '\0') {
         error_setg(errp, "Bitmap name cannot be empty");
@@ -2742,34 +2727,53 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
         return;
     }
 
-    aio_context = bdrv_get_aio_context(bs);
-    aio_context_acquire(aio_context);
-
     if (has_granularity) {
         if (granularity < 512 || !is_power_of_2(granularity)) {
             error_setg(errp, "Granularity must be power of 2 "
                              "and at least 512");
-            goto out;
+            return;
         }
     } else {
         /* Default to cluster size, if available: */
         granularity = bdrv_get_default_bitmap_granularity(bs);
     }
 
-    bdrv_create_dirty_bitmap(bs, granularity, name, errp);
+    if (!has_persistent) {
+        persistent = false;
+    }
+    if (!has_autoload) {
+        autoload = false;
+    }
 
- out:
-    aio_context_release(aio_context);
+    if (has_autoload && !persistent) {
+        error_setg(errp, "Autoload flag must be used only for persistent "
+                         "bitmaps");
+        return;
+    }
+
+    if (persistent &&
+        !bdrv_can_store_new_dirty_bitmap(bs, name, granularity, errp))
+    {
+        return;
+    }
+
+    bitmap = bdrv_create_dirty_bitmap(bs, granularity, name, errp);
+    if (bitmap == NULL) {
+        return;
+    }
+
+    bdrv_dirty_bitmap_set_persistance(bitmap, persistent);
+    bdrv_dirty_bitmap_set_autoload(bitmap, autoload);
 }
 
 void qmp_block_dirty_bitmap_remove(const char *node, const char *name,
                                    Error **errp)
 {
-    AioContext *aio_context;
     BlockDriverState *bs;
     BdrvDirtyBitmap *bitmap;
+    Error *local_err = NULL;
 
-    bitmap = block_dirty_bitmap_lookup(node, name, &bs, &aio_context, errp);
+    bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
     if (!bitmap || !bs) {
         return;
     }
@@ -2778,13 +2782,19 @@ void qmp_block_dirty_bitmap_remove(const char *node, const char *name,
         error_setg(errp,
                    "Bitmap '%s' is currently frozen and cannot be removed",
                    name);
-        goto out;
+        return;
+    }
+
+    if (bdrv_dirty_bitmap_get_persistance(bitmap)) {
+        bdrv_remove_persistent_dirty_bitmap(bs, name, &local_err);
+        if (local_err != NULL) {
+            error_propagate(errp, local_err);
+            return;
+        }
     }
+
     bdrv_dirty_bitmap_make_anon(bitmap);
     bdrv_release_dirty_bitmap(bs, bitmap);
-
- out:
-    aio_context_release(aio_context);
 }
 
 /**
@@ -2794,11 +2804,10 @@ void qmp_block_dirty_bitmap_remove(const char *node, const char *name,
 void qmp_block_dirty_bitmap_clear(const char *node, const char *name,
                                   Error **errp)
 {
-    AioContext *aio_context;
     BdrvDirtyBitmap *bitmap;
     BlockDriverState *bs;
 
-    bitmap = block_dirty_bitmap_lookup(node, name, &bs, &aio_context, errp);
+    bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
     if (!bitmap || !bs) {
         return;
     }
@@ -2807,18 +2816,43 @@ void qmp_block_dirty_bitmap_clear(const char *node, const char *name,
         error_setg(errp,
                    "Bitmap '%s' is currently frozen and cannot be modified",
                    name);
-        goto out;
+        return;
     } else if (!bdrv_dirty_bitmap_enabled(bitmap)) {
         error_setg(errp,
                    "Bitmap '%s' is currently disabled and cannot be cleared",
                    name);
-        goto out;
+        return;
+    } else if (bdrv_dirty_bitmap_readonly(bitmap)) {
+        error_setg(errp, "Bitmap '%s' is readonly and cannot be cleared", name);
+        return;
     }
 
     bdrv_clear_dirty_bitmap(bitmap, NULL);
+}
 
- out:
-    aio_context_release(aio_context);
+BlockDirtyBitmapSha256 *qmp_x_debug_block_dirty_bitmap_sha256(const char *node,
+                                                              const char *name,
+                                                              Error **errp)
+{
+    BdrvDirtyBitmap *bitmap;
+    BlockDriverState *bs;
+    BlockDirtyBitmapSha256 *ret = NULL;
+    char *sha256;
+
+    bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
+    if (!bitmap || !bs) {
+        return NULL;
+    }
+
+    sha256 = bdrv_dirty_bitmap_sha256(bitmap, errp);
+    if (sha256 == NULL) {
+        return NULL;
+    }
+
+    ret = g_new(BlockDirtyBitmapSha256, 1);
+    ret->sha256 = sha256;
+
+    return ret;
 }
 
 void hmp_drive_del(Monitor *mon, const QDict *qdict)
@@ -2924,7 +2958,7 @@ void qmp_block_resize(bool has_device, const char *device,
     }
 
     bdrv_drained_begin(bs);
-    ret = blk_truncate(blk, size, errp);
+    ret = blk_truncate(blk, size, PREALLOC_MODE_OFF, errp);
     bdrv_drained_end(bs);
 
 out:
@@ -3715,7 +3749,6 @@ void qmp_block_job_resume(const char *device, Error **errp)
     }
 
     trace_qmp_block_job_resume(job);
-    block_job_iostatus_reset(job);
     block_job_user_resume(job);
     aio_context_release(aio_context);
 }
@@ -3878,13 +3911,6 @@ void qmp_blockdev_add(BlockdevOptions *options, Error **errp)
 
     QTAILQ_INSERT_TAIL(&monitor_bdrv_states, bs, monitor_list);
 
-    if (bs && bdrv_key_required(bs)) {
-        QTAILQ_REMOVE(&monitor_bdrv_states, bs, monitor_list);
-        bdrv_unref(bs);
-        error_setg(errp, "blockdev-add doesn't support encrypted devices");
-        goto fail;
-    }
-
 fail:
     visit_free(v);
 }
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