From nobody Tue Apr 15 06:10:10 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (209.51.188.17 [209.51.188.17]) by mx.zohomail.com with SMTPS id 1549041398987559.6948125724139; Fri, 1 Feb 2019 09:16:38 -0800 (PST) Received: from localhost ([127.0.0.1]:58463 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gpcQa-0006tp-O3 for importer@patchew.org; Fri, 01 Feb 2019 12:16:32 -0500 Received: from eggs.gnu.org ([209.51.188.92]:39557) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gpboO-00085H-66 for qemu-devel@nongnu.org; Fri, 01 Feb 2019 11:37:06 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gpboL-0000Iu-LA for qemu-devel@nongnu.org; Fri, 01 Feb 2019 11:37:04 -0500 Received: from mx1.redhat.com ([209.132.183.28]:54846) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gpbnz-00084m-UM; Fri, 01 Feb 2019 11:36:42 -0500 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 3C74DC0C0581; Fri, 1 Feb 2019 16:35:45 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-117-95.ams2.redhat.com [10.36.117.95]) by smtp.corp.redhat.com (Postfix) with ESMTP id F0965608C6; Fri, 1 Feb 2019 16:35:43 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Date: Fri, 1 Feb 2019 17:35:00 +0100 Message-Id: <20190201163518.31157-10-kwolf@redhat.com> In-Reply-To: <20190201163518.31157-1-kwolf@redhat.com> References: <20190201163518.31157-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Fri, 01 Feb 2019 16:35:45 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 09/27] vmdk: Implement .bdrv_co_create callback 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: kwolf@redhat.com, peter.maydell@linaro.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Fam Zheng This makes VMDK support blockdev-create. The implementation reuses the image creation code in vmdk_co_create_opts which now acceptes a callback pointer to "retrieve" BlockBackend pointers from the caller. This way we separate the logic between file/extent acquisition and initialization. The QAPI command parameters are mostly the same as the old create_opts except the dropped legacy @compat6 switch, which is redundant with @hwversion. Signed-off-by: Fam Zheng Reviewed-by: Markus Armbruster Signed-off-by: Kevin Wolf --- qapi/block-core.json | 70 +++++++ qapi/qapi-schema.json | 16 +- block/vmdk.c | 448 ++++++++++++++++++++++++++++++------------ 3 files changed, 400 insertions(+), 134 deletions(-) diff --git a/qapi/block-core.json b/qapi/block-core.json index cde1b53708..a5924b40af 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -4137,6 +4137,75 @@ 'size': 'size', '*cluster-size' : 'size' } } =20 +## +# @BlockdevVmdkSubformat: +# +# Subformat options for VMDK images +# +# @monolithicSparse: Single file image with sparse cluster allocation +# +# @monolithicFlat: Single flat data image and a descriptor file +# +# @twoGbMaxExtentSparse: Data is split into 2GB (per virtual LBA) sparse e= xtent +# files, in addition to a descriptor file +# +# @twoGbMaxExtentFlat: Data is split into 2GB (per virtual LBA) flat ext= ent +# files, in addition to a descriptor file +# +# @streamOptimized: Single file image sparse cluster allocation, opti= mized +# for streaming over network. +# +# Since: 4.0 +## +{ 'enum': 'BlockdevVmdkSubformat', + 'data': [ 'monolithicSparse', 'monolithicFlat', 'twoGbMaxExtentSparse', + 'twoGbMaxExtentFlat', 'streamOptimized'] } + +## +# @BlockdevVmdkAdapterType: +# +# Adapter type info for VMDK images +# +# Since: 4.0 +## +{ 'enum': 'BlockdevVmdkAdapterType', + 'data': [ 'ide', 'buslogic', 'lsilogic', 'legacyESX'] } + +## +# @BlockdevCreateOptionsVmdk: +# +# Driver specific image creation options for VMDK. +# +# @file Where to store the new image file. This refers to the image +# file for monolithcSparse and streamOptimized format, or the +# descriptor file for other formats. +# @size Size of the virtual disk in bytes +# @extents Where to store the data extents. Required for monolithcFla= t, +# twoGbMaxExtentSparse and twoGbMaxExtentFlat formats. For +# monolithicFlat, only one entry is required; for +# twoGbMaxExtent* formats, the number of entries required is +# calculated as extent_number =3D virtual_size / 2GB. +# @subformat The subformat of the VMDK image. Default: "monolithicSpars= e". +# @backing-file The path of backing file. Default: no backing file is used. +# @adapter-type The adapter type used to fill in the descriptor. Default: = ide. +# @hwversion Hardware version. The meaningful options are "4" or "6". +# Default: "4". +# @zeroed-grain Whether to enable zeroed-grain feature for sparse subforma= ts. +# Default: false. +# +# Since: 4.0 +## +{ 'struct': 'BlockdevCreateOptionsVmdk', + 'data': { 'file': 'BlockdevRef', + 'size': 'size', + '*extents': ['BlockdevRef'], + '*subformat': 'BlockdevVmdkSubformat', + '*backing-file': 'str', + '*adapter-type': 'BlockdevVmdkAdapterType', + '*hwversion': 'str', + '*zeroed-grain': 'bool' } } + + ## # @SheepdogRedundancyType: # @@ -4331,6 +4400,7 @@ 'ssh': 'BlockdevCreateOptionsSsh', 'vdi': 'BlockdevCreateOptionsVdi', 'vhdx': 'BlockdevCreateOptionsVhdx', + 'vmdk': 'BlockdevCreateOptionsVmdk', 'vpc': 'BlockdevCreateOptionsVpc' } } =20 diff --git a/qapi/qapi-schema.json b/qapi/qapi-schema.json index 3bbdfcee84..1845aa78ff 100644 --- a/qapi/qapi-schema.json +++ b/qapi/qapi-schema.json @@ -63,13 +63,15 @@ 'query-tpm-types', 'ringbuf-read' ], 'name-case-whitelist': [ - 'ACPISlotType', # DIMM, visible through query-acpi-ospm-st= atus - 'CpuInfoMIPS', # PC, visible through query-cpu - 'CpuInfoTricore', # PC, visible through query-cpu - 'QapiErrorClass', # all members, visible through errors - 'UuidInfo', # UUID, visible through query-uuid - 'X86CPURegister32', # all members, visible indirectly through = qom-get - 'q_obj_CpuInfo-base' # CPU, visible through query-cpu + 'ACPISlotType', # DIMM, visible through query-acpi-osp= m-status + 'CpuInfoMIPS', # PC, visible through query-cpu + 'CpuInfoTricore', # PC, visible through query-cpu + 'BlockdevVmdkSubformat', # all members, to match VMDK spec spel= lings + 'BlockdevVmdkAdapterType', # legacyESX, to match VMDK spec spelli= ngs + 'QapiErrorClass', # all members, visible through errors + 'UuidInfo', # UUID, visible through query-uuid + 'X86CPURegister32', # all members, visible indirectly thro= ugh qom-get + 'q_obj_CpuInfo-base' # CPU, visible through query-cpu ] } } =20 # Documentation generated with qapi-gen.py is in source order, with diff --git a/block/vmdk.c b/block/vmdk.c index 32fc2c84b3..5a162ee85c 100644 --- a/block/vmdk.c +++ b/block/vmdk.c @@ -1932,33 +1932,56 @@ static int filename_decompose(const char *filename,= char *path, char *prefix, return VMDK_OK; } =20 -static int coroutine_fn vmdk_co_create_opts(const char *filename, QemuOpts= *opts, - Error **errp) +/* + * idx =3D=3D 0: get or create the descriptor file (also the image file if= in a + * non-split format. + * idx >=3D 1: get the n-th extent if in a split subformat + */ +typedef BlockBackend *(*vmdk_create_extent_fn)(int64_t size, + int idx, + bool flat, + bool split, + bool compress, + bool zeroed_grain, + void *opaque, + Error **errp); + +static void vmdk_desc_add_extent(GString *desc, + const char *extent_line_fmt, + int64_t size, const char *filename) +{ + char *basename =3D g_path_get_basename(filename); + + g_string_append_printf(desc, extent_line_fmt, + DIV_ROUND_UP(size, BDRV_SECTOR_SIZE), basename); + g_free(basename); +} + +static int coroutine_fn vmdk_co_do_create(int64_t size, + BlockdevVmdkSubformat subformat, + BlockdevVmdkAdapterType adapter_= type, + const char *backing_file, + const char *hw_version, + bool compat6, + bool zeroed_grain, + vmdk_create_extent_fn extent_fn, + void *opaque, + Error **errp) { - int idx =3D 0; - BlockBackend *new_blk =3D NULL; + int extent_idx; + BlockBackend *blk =3D NULL; Error *local_err =3D NULL; char *desc =3D NULL; - int64_t total_size =3D 0, filesize; - char *adapter_type =3D NULL; - char *backing_file =3D NULL; - char *hw_version =3D NULL; - char *fmt =3D NULL; int ret =3D 0; bool flat, split, compress; GString *ext_desc_lines; - char *path =3D g_malloc0(PATH_MAX); - char *prefix =3D g_malloc0(PATH_MAX); - char *postfix =3D g_malloc0(PATH_MAX); - char *desc_line =3D g_malloc0(BUF_SIZE); - char *ext_filename =3D g_malloc0(PATH_MAX); - char *desc_filename =3D g_malloc0(PATH_MAX); const int64_t split_size =3D 0x80000000; /* VMDK has constant split s= ize */ - const char *desc_extent_line; + int64_t extent_size; + int64_t created_size =3D 0; + const char *extent_line_fmt; char *parent_desc_line =3D g_malloc0(BUF_SIZE); uint32_t parent_cid =3D 0xffffffff; uint32_t number_heads =3D 16; - bool zeroed_grain =3D false; uint32_t desc_offset =3D 0, desc_len; const char desc_template[] =3D "# Disk DescriptorFile\n" @@ -1982,71 +2005,35 @@ static int coroutine_fn vmdk_co_create_opts(const c= har *filename, QemuOpts *opts =20 ext_desc_lines =3D g_string_new(NULL); =20 - if (filename_decompose(filename, path, prefix, postfix, PATH_MAX, errp= )) { - ret =3D -EINVAL; - goto exit; - } /* Read out options */ - total_size =3D ROUND_UP(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0), - BDRV_SECTOR_SIZE); - adapter_type =3D qemu_opt_get_del(opts, BLOCK_OPT_ADAPTER_TYPE); - backing_file =3D qemu_opt_get_del(opts, BLOCK_OPT_BACKING_FILE); - hw_version =3D qemu_opt_get_del(opts, BLOCK_OPT_HWVERSION); - if (qemu_opt_get_bool_del(opts, BLOCK_OPT_COMPAT6, false)) { - if (strcmp(hw_version, "undefined")) { + if (compat6) { + if (hw_version) { error_setg(errp, "compat6 cannot be enabled with hwversion set"); ret =3D -EINVAL; goto exit; } - g_free(hw_version); - hw_version =3D g_strdup("6"); - } - if (strcmp(hw_version, "undefined") =3D=3D 0) { - g_free(hw_version); - hw_version =3D g_strdup("4"); + hw_version =3D "6"; } - fmt =3D qemu_opt_get_del(opts, BLOCK_OPT_SUBFMT); - if (qemu_opt_get_bool_del(opts, BLOCK_OPT_ZEROED_GRAIN, false)) { - zeroed_grain =3D true; + if (!hw_version) { + hw_version =3D "4"; } =20 - if (!adapter_type) { - adapter_type =3D g_strdup("ide"); - } else if (strcmp(adapter_type, "ide") && - strcmp(adapter_type, "buslogic") && - strcmp(adapter_type, "lsilogic") && - strcmp(adapter_type, "legacyESX")) { - error_setg(errp, "Unknown adapter type: '%s'", adapter_type); - ret =3D -EINVAL; - goto exit; - } - if (strcmp(adapter_type, "ide") !=3D 0) { + if (adapter_type !=3D BLOCKDEV_VMDK_ADAPTER_TYPE_IDE) { /* that's the number of heads with which vmware operates when creating, exporting, etc. vmdk files with a non-ide adapter typ= e */ number_heads =3D 255; } - if (!fmt) { - /* Default format to monolithicSparse */ - fmt =3D g_strdup("monolithicSparse"); - } else if (strcmp(fmt, "monolithicFlat") && - strcmp(fmt, "monolithicSparse") && - strcmp(fmt, "twoGbMaxExtentSparse") && - strcmp(fmt, "twoGbMaxExtentFlat") && - strcmp(fmt, "streamOptimized")) { - error_setg(errp, "Unknown subformat: '%s'", fmt); - ret =3D -EINVAL; - goto exit; - } - split =3D !(strcmp(fmt, "twoGbMaxExtentFlat") && - strcmp(fmt, "twoGbMaxExtentSparse")); - flat =3D !(strcmp(fmt, "monolithicFlat") && - strcmp(fmt, "twoGbMaxExtentFlat")); - compress =3D !strcmp(fmt, "streamOptimized"); + split =3D (subformat =3D=3D BLOCKDEV_VMDK_SUBFORMAT_TWOGBMAXEXTENTFLAT= ) || + (subformat =3D=3D BLOCKDEV_VMDK_SUBFORMAT_TWOGBMAXEXTENTSPARSE= ); + flat =3D (subformat =3D=3D BLOCKDEV_VMDK_SUBFORMAT_MONOLITHICFLAT) || + (subformat =3D=3D BLOCKDEV_VMDK_SUBFORMAT_TWOGBMAXEXTENTFLAT); + compress =3D subformat =3D=3D BLOCKDEV_VMDK_SUBFORMAT_STREAMOPTIMIZED; + if (flat) { - desc_extent_line =3D "RW %" PRId64 " FLAT \"%s\" 0\n"; + extent_line_fmt =3D "RW %" PRId64 " FLAT \"%s\" 0\n"; } else { - desc_extent_line =3D "RW %" PRId64 " SPARSE \"%s\"\n"; + extent_line_fmt =3D "RW %" PRId64 " SPARSE \"%s\"\n"; } if (flat && backing_file) { error_setg(errp, "Flat image can't have backing file"); @@ -2058,10 +2045,34 @@ static int coroutine_fn vmdk_co_create_opts(const c= har *filename, QemuOpts *opts ret =3D -ENOTSUP; goto exit; } + + /* Create extents */ + if (split) { + extent_size =3D split_size; + } else { + extent_size =3D size; + } + if (!split && !flat) { + created_size =3D extent_size; + } else { + created_size =3D 0; + } + /* Get the descriptor file BDS */ + blk =3D extent_fn(created_size, 0, flat, split, compress, zeroed_grain, + opaque, errp); + if (!blk) { + ret =3D -EIO; + goto exit; + } + if (!split && !flat) { + vmdk_desc_add_extent(ext_desc_lines, extent_line_fmt, created_size, + blk_bs(blk)->filename); + } + if (backing_file) { - BlockBackend *blk; + BlockBackend *backing; char *full_backing =3D g_new0(char, PATH_MAX); - bdrv_get_full_backing_filename_from_filename(filename, backing_fil= e, + bdrv_get_full_backing_filename_from_filename(blk_bs(blk)->filename= , backing_file, full_backing, PATH_MA= X, &local_err); if (local_err) { @@ -2071,106 +2082,211 @@ static int coroutine_fn vmdk_co_create_opts(const= char *filename, QemuOpts *opts goto exit; } =20 - blk =3D blk_new_open(full_backing, NULL, NULL, - BDRV_O_NO_BACKING, errp); + backing =3D blk_new_open(full_backing, NULL, NULL, + BDRV_O_NO_BACKING, errp); g_free(full_backing); - if (blk =3D=3D NULL) { + if (backing =3D=3D NULL) { ret =3D -EIO; goto exit; } - if (strcmp(blk_bs(blk)->drv->format_name, "vmdk")) { - blk_unref(blk); + if (strcmp(blk_bs(backing)->drv->format_name, "vmdk")) { + error_setg(errp, "Invalid backing file format: %s. Must be vmd= k", + blk_bs(backing)->drv->format_name); + blk_unref(backing); ret =3D -EINVAL; goto exit; } - ret =3D vmdk_read_cid(blk_bs(blk), 0, &parent_cid); - blk_unref(blk); + ret =3D vmdk_read_cid(blk_bs(backing), 0, &parent_cid); + blk_unref(backing); if (ret) { + error_setg(errp, "Failed to read parent CID"); goto exit; } snprintf(parent_desc_line, BUF_SIZE, "parentFileNameHint=3D\"%s\"", backing_file); } - - /* Create extents */ - filesize =3D total_size; - while (filesize > 0) { - int64_t size =3D filesize; - - if (split && size > split_size) { - size =3D split_size; - } - if (split) { - snprintf(desc_filename, PATH_MAX, "%s-%c%03d%s", - prefix, flat ? 'f' : 's', ++idx, postfix); - } else if (flat) { - snprintf(desc_filename, PATH_MAX, "%s-flat%s", prefix, postfix= ); - } else { - snprintf(desc_filename, PATH_MAX, "%s%s", prefix, postfix); - } - snprintf(ext_filename, PATH_MAX, "%s%s", path, desc_filename); - - if (vmdk_create_extent(ext_filename, size, - flat, compress, zeroed_grain, NULL, opts, e= rrp)) { + extent_idx =3D 1; + while (created_size < size) { + BlockBackend *extent_blk; + int64_t cur_size =3D MIN(size - created_size, extent_size); + extent_blk =3D extent_fn(cur_size, extent_idx, flat, split, compre= ss, + zeroed_grain, opaque, errp); + if (!extent_blk) { ret =3D -EINVAL; goto exit; } - filesize -=3D size; - - /* Format description line */ - snprintf(desc_line, BUF_SIZE, - desc_extent_line, size / BDRV_SECTOR_SIZE, desc_filena= me); - g_string_append(ext_desc_lines, desc_line); + vmdk_desc_add_extent(ext_desc_lines, extent_line_fmt, cur_size, + blk_bs(extent_blk)->filename); + created_size +=3D cur_size; + extent_idx++; + blk_unref(extent_blk); } /* generate descriptor file */ desc =3D g_strdup_printf(desc_template, g_random_int(), parent_cid, - fmt, + BlockdevVmdkSubformat_str(subformat), parent_desc_line, ext_desc_lines->str, hw_version, - total_size / + size / (int64_t)(63 * number_heads * BDRV_SECTOR_S= IZE), number_heads, - adapter_type); + BlockdevVmdkAdapterType_str(adapter_type)); desc_len =3D strlen(desc); /* the descriptor offset =3D 0x200 */ if (!split && !flat) { desc_offset =3D 0x200; - } else { - ret =3D bdrv_create_file(filename, opts, &local_err); + } + + ret =3D blk_pwrite(blk, desc_offset, desc, desc_len, 0); + if (ret < 0) { + error_setg_errno(errp, -ret, "Could not write description"); + goto exit; + } + /* bdrv_pwrite write padding zeros to align to sector, we don't need t= hat + * for description file */ + if (desc_offset =3D=3D 0) { + ret =3D blk_truncate(blk, desc_len, PREALLOC_MODE_OFF, errp); if (ret < 0) { - error_propagate(errp, local_err); goto exit; } } + ret =3D 0; +exit: + if (blk) { + blk_unref(blk); + } + g_free(desc); + g_free(parent_desc_line); + g_string_free(ext_desc_lines, true); + return ret; +} =20 - new_blk =3D blk_new_open(filename, NULL, NULL, - BDRV_O_RDWR | BDRV_O_RESIZE | BDRV_O_PROTOCOL, - &local_err); - if (new_blk =3D=3D NULL) { - error_propagate(errp, local_err); - ret =3D -EIO; +typedef struct { + char *path; + char *prefix; + char *postfix; + QemuOpts *opts; +} VMDKCreateOptsData; + +static BlockBackend *vmdk_co_create_opts_cb(int64_t size, int idx, + bool flat, bool split, bool co= mpress, + bool zeroed_grain, void *opaqu= e, + Error **errp) +{ + BlockBackend *blk =3D NULL; + BlockDriverState *bs =3D NULL; + VMDKCreateOptsData *data =3D opaque; + char *ext_filename =3D NULL; + char *rel_filename =3D NULL; + + if (idx =3D=3D 0) { + rel_filename =3D g_strdup_printf("%s%s", data->prefix, data->postf= ix); + } else if (split) { + rel_filename =3D g_strdup_printf("%s-%c%03d%s", + data->prefix, + flat ? 'f' : 's', idx, data->postfi= x); + } else { + assert(idx =3D=3D 1); + rel_filename =3D g_strdup_printf("%s-flat%s", data->prefix, data->= postfix); + } + + ext_filename =3D g_strdup_printf("%s%s", data->path, rel_filename); + g_free(rel_filename); + + if (vmdk_create_extent(ext_filename, size, + flat, compress, zeroed_grain, &blk, data->opts, + errp)) { goto exit; } + bdrv_unref(bs); +exit: + g_free(ext_filename); + return blk; +} =20 - blk_set_allow_write_beyond_eof(new_blk, true); +static int coroutine_fn vmdk_co_create_opts(const char *filename, QemuOpts= *opts, + Error **errp) +{ + Error *local_err =3D NULL; + char *desc =3D NULL; + int64_t total_size =3D 0; + char *adapter_type =3D NULL; + BlockdevVmdkAdapterType adapter_type_enum; + char *backing_file =3D NULL; + char *hw_version =3D NULL; + char *fmt =3D NULL; + BlockdevVmdkSubformat subformat; + int ret =3D 0; + char *path =3D g_malloc0(PATH_MAX); + char *prefix =3D g_malloc0(PATH_MAX); + char *postfix =3D g_malloc0(PATH_MAX); + char *desc_line =3D g_malloc0(BUF_SIZE); + char *ext_filename =3D g_malloc0(PATH_MAX); + char *desc_filename =3D g_malloc0(PATH_MAX); + char *parent_desc_line =3D g_malloc0(BUF_SIZE); + bool zeroed_grain; + bool compat6; + VMDKCreateOptsData data; =20 - ret =3D blk_pwrite(new_blk, desc_offset, desc, desc_len, 0); - if (ret < 0) { - error_setg_errno(errp, -ret, "Could not write description"); + if (filename_decompose(filename, path, prefix, postfix, PATH_MAX, errp= )) { + ret =3D -EINVAL; goto exit; } - /* bdrv_pwrite write padding zeros to align to sector, we don't need t= hat - * for description file */ - if (desc_offset =3D=3D 0) { - ret =3D blk_truncate(new_blk, desc_len, PREALLOC_MODE_OFF, errp); + /* Read out options */ + total_size =3D ROUND_UP(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0), + BDRV_SECTOR_SIZE); + adapter_type =3D qemu_opt_get_del(opts, BLOCK_OPT_ADAPTER_TYPE); + backing_file =3D qemu_opt_get_del(opts, BLOCK_OPT_BACKING_FILE); + hw_version =3D qemu_opt_get_del(opts, BLOCK_OPT_HWVERSION); + compat6 =3D qemu_opt_get_bool_del(opts, BLOCK_OPT_COMPAT6, false); + if (strcmp(hw_version, "undefined") =3D=3D 0) { + g_free(hw_version); + hw_version =3D g_strdup("4"); } -exit: - if (new_blk) { - blk_unref(new_blk); + fmt =3D qemu_opt_get_del(opts, BLOCK_OPT_SUBFMT); + zeroed_grain =3D qemu_opt_get_bool_del(opts, BLOCK_OPT_ZEROED_GRAIN, f= alse); + + if (adapter_type) { + adapter_type_enum =3D qapi_enum_parse(&BlockdevVmdkAdapterType_loo= kup, + adapter_type, + BLOCKDEV_VMDK_ADAPTER_TYPE_IDE, + &local_err); + if (local_err) { + error_propagate(errp, local_err); + ret =3D -EINVAL; + goto exit; + } + } else { + adapter_type_enum =3D BLOCKDEV_VMDK_ADAPTER_TYPE_IDE; } + + if (!fmt) { + /* Default format to monolithicSparse */ + subformat =3D BLOCKDEV_VMDK_SUBFORMAT_MONOLITHICSPARSE; + } else { + subformat =3D qapi_enum_parse(&BlockdevVmdkSubformat_lookup, + fmt, + BLOCKDEV_VMDK_SUBFORMAT_MONOLITHICSPAR= SE, + &local_err); + if (local_err) { + error_propagate(errp, local_err); + ret =3D -EINVAL; + goto exit; + } + } + data =3D (VMDKCreateOptsData){ + .prefix =3D prefix, + .postfix =3D postfix, + .path =3D path, + .opts =3D opts, + }; + ret =3D vmdk_co_do_create(total_size, subformat, adapter_type_enum, + backing_file, hw_version, compat6, zeroed_grai= n, + vmdk_co_create_opts_cb, &data, errp); + +exit: g_free(adapter_type); g_free(backing_file); g_free(hw_version); @@ -2183,7 +2299,84 @@ exit: g_free(ext_filename); g_free(desc_filename); g_free(parent_desc_line); - g_string_free(ext_desc_lines, true); + return ret; +} + +static BlockBackend *vmdk_co_create_cb(int64_t size, int idx, + bool flat, bool split, bool compres= s, + bool zeroed_grain, void *opaque, + Error **errp) +{ + int ret; + BlockDriverState *bs; + BlockBackend *blk; + BlockdevCreateOptionsVmdk *opts =3D opaque; + + if (idx =3D=3D 0) { + bs =3D bdrv_open_blockdev_ref(opts->file, errp); + } else { + int i; + BlockdevRefList *list =3D opts->extents; + for (i =3D 1; i < idx; i++) { + if (!list || !list->next) { + error_setg(errp, "Extent [%d] not specified", i); + return NULL; + } + list =3D list->next; + } + if (!list) { + error_setg(errp, "Extent [%d] not specified", idx - 1); + return NULL; + } + bs =3D bdrv_open_blockdev_ref(list->value, errp); + } + if (!bs) { + return NULL; + } + blk =3D blk_new(BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE | BLK_PERM_R= ESIZE, + BLK_PERM_ALL); + if (blk_insert_bs(blk, bs, errp)) { + bdrv_unref(bs); + return NULL; + } + blk_set_allow_write_beyond_eof(blk, true); + bdrv_unref(bs); + + ret =3D vmdk_init_extent(blk, size, flat, compress, zeroed_grain, errp= ); + if (ret) { + blk_unref(blk); + blk =3D NULL; + } + return blk; +} + +static int coroutine_fn vmdk_co_create(BlockdevCreateOptions *create_optio= ns, + Error **errp) +{ + int ret; + BlockdevCreateOptionsVmdk *opts; + + opts =3D &create_options->u.vmdk; + + /* Validate options */ + if (!QEMU_IS_ALIGNED(opts->size, BDRV_SECTOR_SIZE)) { + error_setg(errp, "Image size must be a multiple of 512 bytes"); + ret =3D -EINVAL; + goto out; + } + + ret =3D vmdk_co_do_create(opts->size, + opts->subformat, + opts->adapter_type, + opts->backing_file, + opts->hwversion, + false, + opts->zeroed_grain, + vmdk_co_create_cb, + opts, errp); + return ret; + +out: return ret; } =20 @@ -2451,6 +2644,7 @@ static BlockDriver bdrv_vmdk =3D { .bdrv_co_pwrite_zeroes =3D vmdk_co_pwrite_zeroes, .bdrv_close =3D vmdk_close, .bdrv_co_create_opts =3D vmdk_co_create_opts, + .bdrv_co_create =3D vmdk_co_create, .bdrv_co_flush_to_disk =3D vmdk_co_flush, .bdrv_co_block_status =3D vmdk_co_block_status, .bdrv_get_allocated_file_size =3D vmdk_get_allocated_file_size, --=20 2.20.1