From patchwork Wed Feb 6 10:23:07 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrey Shinkevich X-Patchwork-Id: 1037429 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=virtuozzo.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 43vd001skwz9sMl for ; Wed, 6 Feb 2019 21:26:24 +1100 (AEDT) Received: from localhost ([127.0.0.1]:48126 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grKPO-0003cv-8M for incoming@patchwork.ozlabs.org; Wed, 06 Feb 2019 05:26:22 -0500 Received: from eggs.gnu.org ([209.51.188.92]:36664) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grKMQ-0001YL-2c for qemu-devel@nongnu.org; Wed, 06 Feb 2019 05:23:20 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grKMN-0002qs-C7 for qemu-devel@nongnu.org; Wed, 06 Feb 2019 05:23:18 -0500 Received: from relay.sw.ru ([185.231.240.75]:51418) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grKMM-0002ln-LG; Wed, 06 Feb 2019 05:23:14 -0500 Received: from [172.16.25.136] (helo=localhost.sw.ru) by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1grKMI-00009V-MH; Wed, 06 Feb 2019 13:23:10 +0300 From: Andrey Shinkevich To: qemu-devel@nongnu.org, qemu-block@nongnu.org Date: Wed, 6 Feb 2019 13:23:07 +0300 Message-Id: <1549448589-381285-2-git-send-email-andrey.shinkevich@virtuozzo.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1549448589-381285-1-git-send-email-andrey.shinkevich@virtuozzo.com> References: <1549448589-381285-1-git-send-email-andrey.shinkevich@virtuozzo.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 185.231.240.75 Subject: [Qemu-devel] [PATCH v13 1/3] bdrv_query_image_info Error parameter added X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: fam@euphon.net, kwolf@redhat.com, vsementsov@virtuozzo.com, armbru@redhat.com, mreitz@redhat.com, andrey.shinkevich@virtuozzo.com, den@openvz.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Inform a user in case qcow2_get_specific_info fails to obtain QCOW2 image specific information. This patch is preliminary to the one "qcow2: Add list of bitmaps to ImageInfoSpecificQCow2". Signed-off-by: Andrey Shinkevich Reviewed-by: Eric Blake Reviewed-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Kevin Wolf --- block.c | 5 +++-- block/crypto.c | 9 +++------ block/qapi.c | 7 ++++++- block/qcow2.c | 10 ++++++++-- block/vmdk.c | 3 ++- include/block/block.h | 3 ++- include/block/block_int.h | 3 ++- qemu-io-cmds.c | 7 ++++++- 8 files changed, 32 insertions(+), 15 deletions(-) diff --git a/block.c b/block.c index 4f5ff2c..1eb35ef 100644 --- a/block.c +++ b/block.c @@ -4307,11 +4307,12 @@ int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi) return drv->bdrv_get_info(bs, bdi); } -ImageInfoSpecific *bdrv_get_specific_info(BlockDriverState *bs) +ImageInfoSpecific *bdrv_get_specific_info(BlockDriverState *bs, + Error **errp) { BlockDriver *drv = bs->drv; if (drv && drv->bdrv_get_specific_info) { - return drv->bdrv_get_specific_info(bs); + return drv->bdrv_get_specific_info(bs, errp); } return NULL; } diff --git a/block/crypto.c b/block/crypto.c index f0a5f6b..d5b1da6 100644 --- a/block/crypto.c +++ b/block/crypto.c @@ -594,20 +594,17 @@ static int block_crypto_get_info_luks(BlockDriverState *bs, } static ImageInfoSpecific * -block_crypto_get_specific_info_luks(BlockDriverState *bs) +block_crypto_get_specific_info_luks(BlockDriverState *bs, Error **errp) { BlockCrypto *crypto = bs->opaque; ImageInfoSpecific *spec_info; QCryptoBlockInfo *info; - info = qcrypto_block_get_info(crypto->block, NULL); + info = qcrypto_block_get_info(crypto->block, errp); if (!info) { return NULL; } - if (info->format != Q_CRYPTO_BLOCK_FORMAT_LUKS) { - qapi_free_QCryptoBlockInfo(info); - return NULL; - } + assert(info->format == Q_CRYPTO_BLOCK_FORMAT_LUKS); spec_info = g_new(ImageInfoSpecific, 1); spec_info->type = IMAGE_INFO_SPECIFIC_KIND_LUKS; diff --git a/block/qapi.c b/block/qapi.c index c66f949..00291f9 100644 --- a/block/qapi.c +++ b/block/qapi.c @@ -282,7 +282,12 @@ void bdrv_query_image_info(BlockDriverState *bs, info->dirty_flag = bdi.is_dirty; info->has_dirty_flag = true; } - info->format_specific = bdrv_get_specific_info(bs); + info->format_specific = bdrv_get_specific_info(bs, &err); + if (err) { + error_propagate(errp, err); + qapi_free_ImageInfo(info); + goto out; + } info->has_format_specific = info->format_specific != NULL; backing_filename = bs->backing_file; diff --git a/block/qcow2.c b/block/qcow2.c index 4897aba..27e5a2c 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -4367,14 +4367,20 @@ static int qcow2_get_info(BlockDriverState *bs, BlockDriverInfo *bdi) return 0; } -static ImageInfoSpecific *qcow2_get_specific_info(BlockDriverState *bs) +static ImageInfoSpecific *qcow2_get_specific_info(BlockDriverState *bs, + Error **errp) { BDRVQcow2State *s = bs->opaque; ImageInfoSpecific *spec_info; QCryptoBlockInfo *encrypt_info = NULL; + Error *local_err = NULL; if (s->crypto != NULL) { - encrypt_info = qcrypto_block_get_info(s->crypto, &error_abort); + encrypt_info = qcrypto_block_get_info(s->crypto, &local_err); + if (local_err) { + error_propagate(errp, local_err); + return NULL; + } } spec_info = g_new(ImageInfoSpecific, 1); diff --git a/block/vmdk.c b/block/vmdk.c index 2c9e86d..544c10d 100644 --- a/block/vmdk.c +++ b/block/vmdk.c @@ -2314,7 +2314,8 @@ static int coroutine_fn vmdk_co_check(BlockDriverState *bs, return ret; } -static ImageInfoSpecific *vmdk_get_specific_info(BlockDriverState *bs) +static ImageInfoSpecific *vmdk_get_specific_info(BlockDriverState *bs, + Error **errp) { int i; BDRVVmdkState *s = bs->opaque; diff --git a/include/block/block.h b/include/block/block.h index f70a843..9899c24 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -477,7 +477,8 @@ const char *bdrv_get_device_name(const BlockDriverState *bs); const char *bdrv_get_device_or_node_name(const BlockDriverState *bs); int bdrv_get_flags(BlockDriverState *bs); int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi); -ImageInfoSpecific *bdrv_get_specific_info(BlockDriverState *bs); +ImageInfoSpecific *bdrv_get_specific_info(BlockDriverState *bs, + Error **errp); void bdrv_round_to_clusters(BlockDriverState *bs, int64_t offset, int64_t bytes, int64_t *cluster_offset, diff --git a/include/block/block_int.h b/include/block/block_int.h index f605622..0075baf 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -319,7 +319,8 @@ struct BlockDriver { const char *name, Error **errp); int (*bdrv_get_info)(BlockDriverState *bs, BlockDriverInfo *bdi); - ImageInfoSpecific *(*bdrv_get_specific_info)(BlockDriverState *bs); + ImageInfoSpecific *(*bdrv_get_specific_info)(BlockDriverState *bs, + Error **errp); int coroutine_fn (*bdrv_save_vmstate)(BlockDriverState *bs, QEMUIOVector *qiov, diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c index 2c39124..2187036 100644 --- a/qemu-io-cmds.c +++ b/qemu-io-cmds.c @@ -1661,6 +1661,7 @@ static int info_f(BlockBackend *blk, int argc, char **argv) BlockDriverState *bs = blk_bs(blk); BlockDriverInfo bdi; ImageInfoSpecific *spec_info; + Error *local_err = NULL; char s1[64], s2[64]; int ret; @@ -1682,7 +1683,11 @@ static int info_f(BlockBackend *blk, int argc, char **argv) printf("cluster size: %s\n", s1); printf("vm state offset: %s\n", s2); - spec_info = bdrv_get_specific_info(bs); + spec_info = bdrv_get_specific_info(bs, &local_err); + if (local_err) { + error_report_err(local_err); + return -EIO; + } if (spec_info) { printf("Format specific information:\n"); bdrv_image_info_specific_dump(fprintf, stdout, spec_info); From patchwork Wed Feb 6 10:23:08 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrey Shinkevich X-Patchwork-Id: 1037421 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=virtuozzo.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 43vcxP602Pz9sMx for ; Wed, 6 Feb 2019 21:24:09 +1100 (AEDT) Received: from localhost ([127.0.0.1]:48071 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grKND-0001Zy-Ia for incoming@patchwork.ozlabs.org; Wed, 06 Feb 2019 05:24:07 -0500 Received: from eggs.gnu.org ([209.51.188.92]:36666) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grKMQ-0001YM-36 for qemu-devel@nongnu.org; Wed, 06 Feb 2019 05:23:19 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grKMN-0002qW-9D for qemu-devel@nongnu.org; Wed, 06 Feb 2019 05:23:18 -0500 Received: from relay.sw.ru ([185.231.240.75]:51428) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grKMM-0002lo-KK; Wed, 06 Feb 2019 05:23:14 -0500 Received: from [172.16.25.136] (helo=localhost.sw.ru) by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1grKMI-00009V-Ta; Wed, 06 Feb 2019 13:23:11 +0300 From: Andrey Shinkevich To: qemu-devel@nongnu.org, qemu-block@nongnu.org Date: Wed, 6 Feb 2019 13:23:08 +0300 Message-Id: <1549448589-381285-3-git-send-email-andrey.shinkevich@virtuozzo.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1549448589-381285-1-git-send-email-andrey.shinkevich@virtuozzo.com> References: <1549448589-381285-1-git-send-email-andrey.shinkevich@virtuozzo.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 185.231.240.75 Subject: [Qemu-devel] [PATCH v13 2/3] qcow2: Add list of bitmaps to ImageInfoSpecificQCow2 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: fam@euphon.net, kwolf@redhat.com, vsementsov@virtuozzo.com, armbru@redhat.com, mreitz@redhat.com, andrey.shinkevich@virtuozzo.com, den@openvz.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" In the 'Format specific information' section of the 'qemu-img info' command output, the supplemental information about existing QCOW2 bitmaps will be shown, such as a bitmap name, flags and granularity: image: /vz/vmprivate/VM1/harddisk.hdd file format: qcow2 virtual size: 64G (68719476736 bytes) disk size: 3.0M cluster_size: 1048576 Format specific information: compat: 1.1 lazy refcounts: true bitmaps: [0]: flags: [0]: in-use [1]: auto name: back-up1 granularity: 65536 [1]: flags: [0]: in-use [1]: auto name: back-up2 granularity: 65536 refcount bits: 16 corrupt: false Signed-off-by: Andrey Shinkevich Reviewed-by: Eric Blake Reviewed-by: Vladimir Sementsov-Ogievskiy --- block/qcow2-bitmap.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++ block/qcow2.c | 11 +++++++- block/qcow2.h | 2 ++ qapi/block-core.json | 41 +++++++++++++++++++++++++++- 4 files changed, 128 insertions(+), 2 deletions(-) diff --git a/block/qcow2-bitmap.c b/block/qcow2-bitmap.c index b946301..3ee524d 100644 --- a/block/qcow2-bitmap.c +++ b/block/qcow2-bitmap.c @@ -1006,6 +1006,82 @@ fail: return false; } + +static Qcow2BitmapInfoFlagsList *get_bitmap_info_flags(uint32_t flags) +{ + Qcow2BitmapInfoFlagsList *list = NULL; + Qcow2BitmapInfoFlagsList **plist = &list; + int i; + + static const struct { + int bme; /* Bitmap directory entry flags */ + int info; /* The flags to report to the user */ + } map[] = { + { BME_FLAG_IN_USE, QCOW2_BITMAP_INFO_FLAGS_IN_USE }, + { BME_FLAG_AUTO, QCOW2_BITMAP_INFO_FLAGS_AUTO }, + }; + + int map_size = ARRAY_SIZE(map); + + for (i = 0; i < map_size; ++i) { + if (flags & map[i].bme) { + Qcow2BitmapInfoFlagsList *entry = + g_new0(Qcow2BitmapInfoFlagsList, 1); + entry->value = map[i].info; + *plist = entry; + plist = &entry->next; + flags &= ~map[i].bme; + } + } + /* Check if the BME_* mapping above is complete */ + assert(!flags); + + return list; +} + +/* + * qcow2_get_bitmap_info_list() + * Returns a list of QCOW2 bitmap details. + * In case of no bitmaps, the function returns NULL and + * the @errp parameter is not set. + * When bitmap information can not be obtained, the function returns + * NULL and the @errp parameter is set. + */ +Qcow2BitmapInfoList *qcow2_get_bitmap_info_list(BlockDriverState *bs, + Error **errp) +{ + BDRVQcow2State *s = bs->opaque; + Qcow2BitmapList *bm_list; + Qcow2Bitmap *bm; + Qcow2BitmapInfoList *list = NULL; + Qcow2BitmapInfoList **plist = &list; + + if (s->nb_bitmaps == 0) { + return NULL; + } + + bm_list = bitmap_list_load(bs, s->bitmap_directory_offset, + s->bitmap_directory_size, errp); + if (bm_list == NULL) { + return NULL; + } + + QSIMPLEQ_FOREACH(bm, bm_list, entry) { + Qcow2BitmapInfo *info = g_new0(Qcow2BitmapInfo, 1); + Qcow2BitmapInfoList *obj = g_new0(Qcow2BitmapInfoList, 1); + info->granularity = 1U << bm->granularity_bits; + info->name = g_strdup(bm->name); + info->flags = get_bitmap_info_flags(bm->flags & ~BME_RESERVED_FLAGS); + obj->value = info; + *plist = obj; + plist = &obj->next; + } + + bitmap_list_free(bm_list); + + return list; +} + int qcow2_reopen_bitmaps_rw_hint(BlockDriverState *bs, bool *header_updated, Error **errp) { diff --git a/block/qcow2.c b/block/qcow2.c index 27e5a2c..a5607f1 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -4386,7 +4386,7 @@ static ImageInfoSpecific *qcow2_get_specific_info(BlockDriverState *bs, spec_info = g_new(ImageInfoSpecific, 1); *spec_info = (ImageInfoSpecific){ .type = IMAGE_INFO_SPECIFIC_KIND_QCOW2, - .u.qcow2.data = g_new(ImageInfoSpecificQCow2, 1), + .u.qcow2.data = g_new0(ImageInfoSpecificQCow2, 1), }; if (s->qcow_version == 2) { *spec_info->u.qcow2.data = (ImageInfoSpecificQCow2){ @@ -4394,6 +4394,13 @@ static ImageInfoSpecific *qcow2_get_specific_info(BlockDriverState *bs, .refcount_bits = s->refcount_bits, }; } else if (s->qcow_version == 3) { + Qcow2BitmapInfoList *bitmaps; + bitmaps = qcow2_get_bitmap_info_list(bs, &local_err); + if (local_err) { + error_propagate(errp, local_err); + qapi_free_ImageInfoSpecific(spec_info); + return NULL; + } *spec_info->u.qcow2.data = (ImageInfoSpecificQCow2){ .compat = g_strdup("1.1"), .lazy_refcounts = s->compatible_features & @@ -4403,6 +4410,8 @@ static ImageInfoSpecific *qcow2_get_specific_info(BlockDriverState *bs, QCOW2_INCOMPAT_CORRUPT, .has_corrupt = true, .refcount_bits = s->refcount_bits, + .has_bitmaps = !!bitmaps, + .bitmaps = bitmaps, }; } else { /* if this assertion fails, this probably means a new version was diff --git a/block/qcow2.h b/block/qcow2.h index 438a1de..13e8964 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -684,6 +684,8 @@ int qcow2_check_bitmaps_refcounts(BlockDriverState *bs, BdrvCheckResult *res, void **refcount_table, int64_t *refcount_table_size); bool qcow2_load_dirty_bitmaps(BlockDriverState *bs, Error **errp); +Qcow2BitmapInfoList *qcow2_get_bitmap_info_list(BlockDriverState *bs, + Error **errp); int qcow2_reopen_bitmaps_rw_hint(BlockDriverState *bs, bool *header_updated, Error **errp); int qcow2_reopen_bitmaps_rw(BlockDriverState *bs, Error **errp); diff --git a/qapi/block-core.json b/qapi/block-core.json index 91685be..683215c 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -69,6 +69,8 @@ # @encrypt: details about encryption parameters; only set if image # is encrypted (since 2.10) # +# @bitmaps: A list of qcow2 bitmap details (since 4.0) +# # Since: 1.7 ## { 'struct': 'ImageInfoSpecificQCow2', @@ -77,7 +79,8 @@ '*lazy-refcounts': 'bool', '*corrupt': 'bool', 'refcount-bits': 'int', - '*encrypt': 'ImageInfoSpecificQCow2Encryption' + '*encrypt': 'ImageInfoSpecificQCow2Encryption', + '*bitmaps': ['Qcow2BitmapInfo'] } } ## @@ -454,6 +457,42 @@ 'status': 'DirtyBitmapStatus'} } ## +# @Qcow2BitmapInfoFlags: +# +# An enumeration of flags that a bitmap can report to the user. +# +# @in-use: This flag is set by any process actively modifying the qcow2 file, +# and cleared when the updated bitmap is flushed to the qcow2 image. +# The presence of this flag in an offline image means that the bitmap +# was not saved correctly after its last usage, and may contain +# inconsistent data. +# +# @auto: The bitmap must reflect all changes of the virtual disk by any +# application that would write to this qcow2 file. +# +# Since: 4.0 +## +{ 'enum': 'Qcow2BitmapInfoFlags', + 'data': ['in-use', 'auto'] } + +## +# @Qcow2BitmapInfo: +# +# Qcow2 bitmap information. +# +# @name: the name of the bitmap +# +# @granularity: granularity of the bitmap in bytes +# +# @flags: flags of the bitmap +# +# Since: 4.0 +## +{ 'struct': 'Qcow2BitmapInfo', + 'data': {'name': 'str', 'granularity': 'uint32', + 'flags': ['Qcow2BitmapInfoFlags'] } } + +## # @BlockLatencyHistogramInfo: # # Block latency histogram. From patchwork Wed Feb 6 10:23:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrey Shinkevich X-Patchwork-Id: 1037422 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=virtuozzo.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 43vcxd6Xkfz9sMp for ; Wed, 6 Feb 2019 21:24:21 +1100 (AEDT) Received: from localhost ([127.0.0.1]:48077 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grKNP-0001mz-Oj for incoming@patchwork.ozlabs.org; Wed, 06 Feb 2019 05:24:19 -0500 Received: from eggs.gnu.org ([209.51.188.92]:36667) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grKMQ-0001YN-3D for qemu-devel@nongnu.org; Wed, 06 Feb 2019 05:23:24 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grKMN-0002qw-C3 for qemu-devel@nongnu.org; Wed, 06 Feb 2019 05:23:18 -0500 Received: from relay.sw.ru ([185.231.240.75]:51420) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grKMM-0002lp-MP; Wed, 06 Feb 2019 05:23:14 -0500 Received: from [172.16.25.136] (helo=localhost.sw.ru) by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1grKMJ-00009V-4a; Wed, 06 Feb 2019 13:23:11 +0300 From: Andrey Shinkevich To: qemu-devel@nongnu.org, qemu-block@nongnu.org Date: Wed, 6 Feb 2019 13:23:09 +0300 Message-Id: <1549448589-381285-4-git-send-email-andrey.shinkevich@virtuozzo.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1549448589-381285-1-git-send-email-andrey.shinkevich@virtuozzo.com> References: <1549448589-381285-1-git-send-email-andrey.shinkevich@virtuozzo.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 185.231.240.75 Subject: [Qemu-devel] [PATCH v13 3/3] qcow2: list of bitmaps new test 242 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: fam@euphon.net, kwolf@redhat.com, vsementsov@virtuozzo.com, armbru@redhat.com, mreitz@redhat.com, andrey.shinkevich@virtuozzo.com, den@openvz.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" A new test file 242 added to the qemu-iotests set. It checks the format of qcow2 specific information for the new added section that lists details of bitmaps. Signed-off-by: Andrey Shinkevich Reviewed-by: Eric Blake Reviewed-by: Vladimir Sementsov-Ogievskiy Tested-by: Eric Blake --- tests/qemu-iotests/242 | 99 +++++++++++++++++++++++++++ tests/qemu-iotests/242.out | 167 +++++++++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/group | 1 + 3 files changed, 267 insertions(+) create mode 100755 tests/qemu-iotests/242 create mode 100644 tests/qemu-iotests/242.out diff --git a/tests/qemu-iotests/242 b/tests/qemu-iotests/242 new file mode 100755 index 0000000..fbd1b35 --- /dev/null +++ b/tests/qemu-iotests/242 @@ -0,0 +1,99 @@ +#!/usr/bin/env python +# +# Test for qcow2 bitmap printed information +# +# Copyright (c) 2019 Virtuozzo International GmbH +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . +# + +import iotests +import json +from iotests import qemu_img_create, qemu_io, qemu_img_pipe, \ + file_path, img_info_log, log, filter_qemu_io + +iotests.verify_image_format(supported_fmts=['qcow2']) + +disk = file_path('disk') +chunk = 256*1024 +bitmap_flag_unknown = 1 << 2 +flag_offset = 0x10002f + + +def print_bitmap(extra_args): + log('qemu-img info dump:\n') + img_info_log(disk, extra_args=extra_args) + result = json.loads(qemu_img_pipe('info', '--force-share', + '--output=json', disk)) + if 'bitmaps' in result['format-specific']['data']: + bitmaps = result['format-specific']['data']['bitmaps'] + log('The same bitmaps in JSON format:') + log(bitmaps, indent=2) + else: + log('No bitmap in JSON format output') + + +def add_bitmap(bitmap_number, persistent, disabled): + granularity = 2**(13 + bitmap_number) + bitmap_name = 'bitmap-' + str(bitmap_number-1) + vm = iotests.VM().add_drive(disk) + vm.launch() + vm.qmp_log('block-dirty-bitmap-add', node='drive0', name=bitmap_name, + granularity=granularity, persistent=persistent, + disabled=disabled) + vm.shutdown() + + +def write_to_disk(offset, size): + write = 'write {} {}'.format(offset, size) + log(qemu_io('-c', write, disk), filters=[filter_qemu_io]) + + +def toggle_flag(offset): + with open(disk, "r+b") as f: + f.seek(offset, 0) + c = f.read(1) + toggled = chr(ord(c) ^ bitmap_flag_unknown) + f.seek(-1, 1) + f.write(toggled) + + +qemu_img_create('-f', iotests.imgfmt, disk, '1M') + +for num in range(1, 4): + disabled = False + if num == 2: + disabled = True + log('Test {}'.format(num)) + add_bitmap(num, num > 1, disabled) + write_to_disk((num-1) * chunk, chunk) + print_bitmap([]) + log('') + +vm = iotests.VM().add_drive(disk) +vm.launch() +num += 1 +log('Test {}\nChecking "in-use" flag...'.format(num)) +print_bitmap(['--force-share']) +vm.shutdown() + +num += 1 +log('\nTest {}\nWrite bitmap flag \'{}\' into the QCOW2 image at offset {}' + .format(num, hex(bitmap_flag_unknown), flag_offset)) +toggle_flag(flag_offset) +img_info_log(disk) +toggle_flag(flag_offset) +log('Unset the unknown bitmap flag \'{}\' in the bitmap directory entry:\n' + .format(hex(bitmap_flag_unknown))) +img_info_log(disk) diff --git a/tests/qemu-iotests/242.out b/tests/qemu-iotests/242.out new file mode 100644 index 0000000..cf2b310 --- /dev/null +++ b/tests/qemu-iotests/242.out @@ -0,0 +1,167 @@ +Test 1 +{"execute": "block-dirty-bitmap-add", "arguments": {"disabled": false, "granularity": 16384, "name": "bitmap-0", "node": "drive0", "persistent": false}} +{"return": {}} +wrote 262144/262144 bytes at offset 0 +256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +qemu-img info dump: + +image: TEST_IMG +file format: IMGFMT +virtual size: 1.0M (1048576 bytes) +cluster_size: 65536 +Format specific information: + compat: 1.1 + lazy refcounts: false + refcount bits: 16 + corrupt: false + +No bitmap in JSON format output + +Test 2 +{"execute": "block-dirty-bitmap-add", "arguments": {"disabled": true, "granularity": 32768, "name": "bitmap-1", "node": "drive0", "persistent": true}} +{"return": {}} +wrote 262144/262144 bytes at offset 262144 +256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +qemu-img info dump: + +image: TEST_IMG +file format: IMGFMT +virtual size: 1.0M (1048576 bytes) +cluster_size: 65536 +Format specific information: + compat: 1.1 + lazy refcounts: false + bitmaps: + [0]: + flags: + name: bitmap-1 + granularity: 32768 + refcount bits: 16 + corrupt: false + +The same bitmaps in JSON format: +[ + { + "flags": [], + "granularity": 32768, + "name": "bitmap-1" + } +] + +Test 3 +{"execute": "block-dirty-bitmap-add", "arguments": {"disabled": false, "granularity": 65536, "name": "bitmap-2", "node": "drive0", "persistent": true}} +{"return": {}} +wrote 262144/262144 bytes at offset 524288 +256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +qemu-img info dump: + +image: TEST_IMG +file format: IMGFMT +virtual size: 1.0M (1048576 bytes) +cluster_size: 65536 +Format specific information: + compat: 1.1 + lazy refcounts: false + bitmaps: + [0]: + flags: + name: bitmap-1 + granularity: 32768 + [1]: + flags: + [0]: auto + name: bitmap-2 + granularity: 65536 + refcount bits: 16 + corrupt: false + +The same bitmaps in JSON format: +[ + { + "flags": [], + "granularity": 32768, + "name": "bitmap-1" + }, + { + "flags": [ + "auto" + ], + "granularity": 65536, + "name": "bitmap-2" + } +] + +Test 4 +Checking "in-use" flag... +qemu-img info dump: + +image: TEST_IMG +file format: IMGFMT +virtual size: 1.0M (1048576 bytes) +cluster_size: 65536 +Format specific information: + compat: 1.1 + lazy refcounts: false + bitmaps: + [0]: + flags: + [0]: in-use + name: bitmap-1 + granularity: 32768 + [1]: + flags: + [0]: in-use + [1]: auto + name: bitmap-2 + granularity: 65536 + refcount bits: 16 + corrupt: false + +The same bitmaps in JSON format: +[ + { + "flags": [ + "in-use" + ], + "granularity": 32768, + "name": "bitmap-1" + }, + { + "flags": [ + "in-use", + "auto" + ], + "granularity": 65536, + "name": "bitmap-2" + } +] + +Test 5 +Write bitmap flag '0x4' into the QCOW2 image at offset 1048623 +qemu-img: Could not open 'TEST_IMG': Bitmap 'bitmap-2' doesn't satisfy the constraints + +Unset the unknown bitmap flag '0x4' in the bitmap directory entry: + +image: TEST_IMG +file format: IMGFMT +virtual size: 1.0M (1048576 bytes) +cluster_size: 65536 +Format specific information: + compat: 1.1 + lazy refcounts: false + bitmaps: + [0]: + flags: + name: bitmap-1 + granularity: 32768 + [1]: + flags: + [0]: auto + name: bitmap-2 + granularity: 65536 + refcount bits: 16 + corrupt: false + diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index 0f1c3f9..32acdd7 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -235,3 +235,4 @@ 235 auto quick 236 auto quick 238 auto quick +242 rw auto quick