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Re: [Qemu-devel] [PATCH] Allow users to specify the vmdk virtual hardwar
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] [PATCH] Allow users to specify the vmdk virtual hardware version. |
Date: |
Fri, 6 May 2016 13:05:26 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Am 06.05.2016 um 11:04 hat Fam Zheng geschrieben:
> On Tue, 05/03 02:43, Janne Karhunen wrote:
> > From: Janne Karhunen <address@hidden>
> >
> > Vmdk images have metadata to indicate the vmware virtual
> > hardware version image was created/tested to run with.
> > Allow users to specify that version via new 'hwversion'
> > option.
> >
> > Signed-off-by: Janne Karhunen <address@hidden>
> > ---
> > block/vmdk.c | 27 +++++++++++++++++++++++----
> > include/block/block_int.h | 2 +-
> > qemu-doc.texi | 3 +++
> > 3 files changed, 27 insertions(+), 5 deletions(-)
> >
> > diff --git a/block/vmdk.c b/block/vmdk.c
> > index 45f9d3c..955c6b3 100644
> > --- a/block/vmdk.c
> > +++ b/block/vmdk.c
> > @@ -1829,8 +1829,8 @@ static int vmdk_create(const char *filename, QemuOpts
> > *opts, Error **errp)
> > int64_t total_size = 0, filesize;
> > char *adapter_type = NULL;
> > char *backing_file = NULL;
> > + char *hw_version = NULL;
> > char *fmt = NULL;
> > - int flags = 0;
> > int ret = 0;
> > bool flat, split, compress;
> > GString *ext_desc_lines;
> > @@ -1861,7 +1861,7 @@ static int vmdk_create(const char *filename, QemuOpts
> > *opts, Error **errp)
> > "# The Disk Data Base\n"
> > "#DDB\n"
> > "\n"
> > - "ddb.virtualHWVersion = \"%d\"\n"
> > + "ddb.virtualHWVersion = \"%s\"\n"
> > "ddb.geometry.cylinders = \"%" PRId64 "\"\n"
> > "ddb.geometry.heads = \"%" PRIu32 "\"\n"
> > "ddb.geometry.sectors = \"63\"\n"
> > @@ -1878,8 +1878,20 @@ static int vmdk_create(const char *filename,
> > QemuOpts *opts, Error **errp)
> > BDRV_SECTOR_SIZE);
> > adapter_type = qemu_opt_get_del(opts, BLOCK_OPT_ADAPTER_TYPE);
> > backing_file = qemu_opt_get_del(opts, BLOCK_OPT_BACKING_FILE);
> > + hw_version = qemu_opt_get_del(opts, BLOCK_OPT_HWVERSION);
> > if (qemu_opt_get_bool_del(opts, BLOCK_OPT_COMPAT6, false)) {
> > - flags |= BLOCK_FLAG_COMPAT6;
> > + if (strcmp(hw_version, "undefined")) {
> > + error_setg(errp,
> > + "compat6 cannot be enabled with hwversion set");
> > + ret = -EINVAL;
> > + goto exit;
> > + }
> > + g_free(hw_version);
> > + hw_version = g_strdup("6");
> > + }
> > + if (strcmp(hw_version, "undefined") == 0) {
> > + g_free(hw_version);
> > + hw_version = g_strdup("4");
> > }
> > fmt = qemu_opt_get_del(opts, BLOCK_OPT_SUBFMT);
> > if (qemu_opt_get_bool_del(opts, BLOCK_OPT_ZEROED_GRAIN, false)) {
> > @@ -2001,7 +2013,7 @@ static int vmdk_create(const char *filename, QemuOpts
> > *opts, Error **errp)
> > fmt,
> > parent_desc_line,
> > ext_desc_lines->str,
> > - (flags & BLOCK_FLAG_COMPAT6 ? 6 : 4),
> > + hw_version,
> > total_size /
> > (int64_t)(63 * number_heads *
> > BDRV_SECTOR_SIZE),
> > number_heads,
> > @@ -2047,6 +2059,7 @@ exit:
> > }
> > g_free(adapter_type);
> > g_free(backing_file);
> > + g_free(hw_version);
> > g_free(fmt);
> > g_free(desc);
> > g_free(path);
> > @@ -2298,6 +2311,12 @@ static QemuOptsList vmdk_create_opts = {
> > .def_value_str = "off"
> > },
> > {
> > + .name = BLOCK_OPT_HWVERSION,
> > + .type = QEMU_OPT_STRING,
> > + .help = "VMDK hardware version",
> > + .def_value_str = "undefined"
> > + },
> > + {
> > .name = BLOCK_OPT_SUBFMT,
> > .type = QEMU_OPT_STRING,
> > .help =
> > diff --git a/include/block/block_int.h b/include/block/block_int.h
> > index 10d8759..931a412 100644
> > --- a/include/block/block_int.h
> > +++ b/include/block/block_int.h
> > @@ -38,12 +38,12 @@
> > #include "qemu/throttle.h"
> >
> > #define BLOCK_FLAG_ENCRYPT 1
> > -#define BLOCK_FLAG_COMPAT6 4
> > #define BLOCK_FLAG_LAZY_REFCOUNTS 8
> >
> > #define BLOCK_OPT_SIZE "size"
> > #define BLOCK_OPT_ENCRYPT "encryption"
> > #define BLOCK_OPT_COMPAT6 "compat6"
> > +#define BLOCK_OPT_HWVERSION "hwversion"
> > #define BLOCK_OPT_BACKING_FILE "backing_file"
> > #define BLOCK_OPT_BACKING_FMT "backing_fmt"
> > #define BLOCK_OPT_CLUSTER_SIZE "cluster_size"
> > diff --git a/qemu-doc.texi b/qemu-doc.texi
> > index 79141d3..f37fd31 100644
> > --- a/qemu-doc.texi
> > +++ b/qemu-doc.texi
> > @@ -693,6 +693,9 @@ Supported options:
> > File name of a base image (see @option{create} subcommand).
> > @item compat6
> > Create a VMDK version 6 image (instead of version 4)
> > address@hidden hwversion
> > +Specify vmdk virtual hardware version. Compat6 flag cannot be enabled
> > +if hwversion is specified.
> > @item subformat
> > Specifies which VMDK subformat to use. Valid options are
> > @code{monolithicSparse} (default),
> > --
> > 1.9.1
> >
>
> Reviewed-by: Fam Zheng <address@hidden>
Thanks, applied to block-next.
Kevin