]> Git Repo - qemu.git/blobdiff - block/qapi.c
qcow2: Remove BDS parameter from qcow2_cache_discard()
[qemu.git] / block / qapi.c
index 0a41d59bf3e29d021ce1eb68b0637423485dfef6..1fdeb1ef2fdb21fe285c46fa96f79bba4602684c 100644 (file)
 #include "block/write-threshold.h"
 #include "qmp-commands.h"
 #include "qapi-visit.h"
+#include "qapi/error.h"
 #include "qapi/qobject-output-visitor.h"
-#include "qapi/qmp/types.h"
+#include "qapi/qmp/qbool.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/qmp/qlist.h"
+#include "qapi/qmp/qnum.h"
+#include "qapi/qmp/qstring.h"
 #include "sysemu/block-backend.h"
 #include "qemu/cutils.h"
 
@@ -39,13 +44,19 @@ BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
 {
     ImageInfo **p_image_info;
     BlockDriverState *bs0;
-    BlockDeviceInfo *info = g_malloc0(sizeof(*info));
+    BlockDeviceInfo *info;
 
+    if (!bs->drv) {
+        error_setg(errp, "Block device %s is ejected", bs->node_name);
+        return NULL;
+    }
+
+    info = g_malloc0(sizeof(*info));
     info->file                   = g_strdup(bs->filename);
     info->ro                     = bs->read_only;
     info->drv                    = g_strdup(bs->drv->format_name);
     info->encrypted              = bs->encrypted;
-    info->encryption_key_missing = bdrv_key_required(bs);
+    info->encryption_key_missing = false;
 
     info->cache = g_new(BlockdevCacheInfo, 1);
     *info->cache = (BlockdevCacheInfo) {
@@ -64,13 +75,13 @@ BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
         info->backing_file = g_strdup(bs->backing_file);
     }
 
-    info->backing_file_depth = bdrv_get_backing_file_depth(bs);
     info->detect_zeroes = bs->detect_zeroes;
 
-    if (blk && blk_get_public(blk)->throttle_state) {
+    if (blk && blk_get_public(blk)->throttle_group_member.throttle_state) {
         ThrottleConfig cfg;
+        BlockBackendPublic *blkp = blk_get_public(blk);
 
-        throttle_group_get_config(blk, &cfg);
+        throttle_group_get_config(&blkp->throttle_group_member, &cfg);
 
         info->bps     = cfg.buckets[THROTTLE_BPS_TOTAL].avg;
         info->bps_rd  = cfg.buckets[THROTTLE_BPS_READ].avg;
@@ -118,13 +129,15 @@ BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
         info->iops_size = cfg.op_size;
 
         info->has_group = true;
-        info->group = g_strdup(throttle_group_get_name(blk));
+        info->group =
+            g_strdup(throttle_group_get_name(&blkp->throttle_group_member));
     }
 
     info->write_threshold = bdrv_write_threshold_get(bs);
 
     bs0 = bs;
     p_image_info = &info->image;
+    info->backing_file_depth = 0;
     while (1) {
         Error *local_err = NULL;
         bdrv_query_image_info(bs0, p_image_info, &local_err);
@@ -133,13 +146,22 @@ BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
             qapi_free_BlockDeviceInfo(info);
             return NULL;
         }
+
         if (bs0->drv && bs0->backing) {
+            info->backing_file_depth++;
             bs0 = bs0->backing->bs;
             (*p_image_info)->has_backing_image = true;
             p_image_info = &((*p_image_info)->backing_image);
         } else {
             break;
         }
+
+        /* Skip automatically inserted nodes that the user isn't aware of for
+         * query-block (blk != NULL), but not for query-named-block-nodes */
+        while (blk && bs0->drv && bs0->implicit) {
+            bs0 = backing_bs(bs0);
+            assert(bs0);
+        }
     }
 
     return info;
@@ -322,11 +344,26 @@ static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info,
 {
     BlockInfo *info = g_malloc0(sizeof(*info));
     BlockDriverState *bs = blk_bs(blk);
+    char *qdev;
+
+    /* Skip automatically inserted nodes that the user isn't aware of */
+    while (bs && bs->drv && bs->implicit) {
+        bs = backing_bs(bs);
+    }
+
     info->device = g_strdup(blk_name(blk));
     info->type = g_strdup("unknown");
     info->locked = blk_dev_is_medium_locked(blk);
     info->removable = blk_dev_has_removable_media(blk);
 
+    qdev = blk_get_attached_dev_id(blk);
+    if (qdev && *qdev) {
+        info->has_qdev = true;
+        info->qdev = qdev;
+    } else {
+        g_free(qdev);
+    }
+
     if (blk_dev_has_tray(blk)) {
         info->has_tray_open = true;
         info->tray_open = blk_dev_is_tray_open(blk);
@@ -424,8 +461,8 @@ static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk)
     }
 }
 
-static BlockStats *bdrv_query_bds_stats(const BlockDriverState *bs,
-                                 bool query_backing)
+static BlockStats *bdrv_query_bds_stats(BlockDriverState *bs,
+                                        bool blk_level)
 {
     BlockStats *s = NULL;
 
@@ -436,6 +473,14 @@ static BlockStats *bdrv_query_bds_stats(const BlockDriverState *bs,
         return s;
     }
 
+    /* Skip automatically inserted nodes that the user isn't aware of in
+     * a BlockBackend-level command. Stay at the exact node for a node-level
+     * command. */
+    while (blk_level && bs->drv && bs->implicit) {
+        bs = backing_bs(bs);
+        assert(bs);
+    }
+
     if (bdrv_get_node_name(bs)[0]) {
         s->has_node_name = true;
         s->node_name = g_strdup(bdrv_get_node_name(bs));
@@ -445,12 +490,12 @@ static BlockStats *bdrv_query_bds_stats(const BlockDriverState *bs,
 
     if (bs->file) {
         s->has_parent = true;
-        s->parent = bdrv_query_bds_stats(bs->file->bs, query_backing);
+        s->parent = bdrv_query_bds_stats(bs->file->bs, blk_level);
     }
 
-    if (query_backing && bs->backing) {
+    if (blk_level && bs->backing) {
         s->has_backing = true;
-        s->backing = bdrv_query_bds_stats(bs->backing->bs, query_backing);
+        s->backing = bdrv_query_bds_stats(bs->backing->bs, blk_level);
     }
 
     return s;
@@ -462,8 +507,14 @@ BlockInfoList *qmp_query_block(Error **errp)
     BlockBackend *blk;
     Error *local_err = NULL;
 
-    for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
-        BlockInfoList *info = g_malloc0(sizeof(*info));
+    for (blk = blk_all_next(NULL); blk; blk = blk_all_next(blk)) {
+        BlockInfoList *info;
+
+        if (!*blk_name(blk) && !blk_get_attached_dev(blk)) {
+            continue;
+        }
+
+        info = g_malloc0(sizeof(*info));
         bdrv_query_info(blk, &info->value, &local_err);
         if (local_err) {
             error_propagate(errp, local_err);
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