Re: [Qemu-devel] [PATCH v2 3/4] block: Remove deprecated -drive option serial

["Richard W.M. Jones" <rjones@redhat.com>]

On Thu, Jun 14, 2018 at 11:55:43AM +0200, Kevin Wolf wrote:
> The -drive option serial was deprecated in QEMU 2.10. It's time to
> remove it.
> 
> Tests need to be updated to set the serial number with -global instead
> of using the -drive option.

Libguestfs uses this option to set the disk serial/label.  What is
the alternate syntax?

Rich.

> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
> Reviewed-by: Markus Armbruster <armbru@redhat.com>
> Reviewed-by: Jeff Cody <jcody@redhat.com>
> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
> ---
>  include/hw/block/block.h  |  1 -
>  include/sysemu/blockdev.h |  1 -
>  block/block-backend.c     |  1 -
>  blockdev.c                | 10 ----------
>  hw/block/block.c          | 13 -------------
>  hw/block/nvme.c           |  1 -
>  hw/block/virtio-blk.c     |  1 -
>  hw/ide/qdev.c             |  1 -
>  hw/scsi/scsi-disk.c       |  1 -
>  hw/usb/dev-storage.c      |  1 -
>  tests/ahci-test.c         |  6 +++---
>  tests/ide-test.c          |  8 ++++----
>  qemu-doc.texi             |  5 -----
>  qemu-options.hx           |  6 +-----
>  14 files changed, 8 insertions(+), 48 deletions(-)
> 
> diff --git a/include/hw/block/block.h b/include/hw/block/block.h
> index d4f4dfffab..e9f9e2223f 100644
> --- a/include/hw/block/block.h
> +++ b/include/hw/block/block.h
> @@ -72,7 +72,6 @@ static inline unsigned int get_physical_block_exp(BlockConf *conf)
>  
>  /* Configuration helpers */
>  
> -void blkconf_serial(BlockConf *conf, char **serial);
>  bool blkconf_geometry(BlockConf *conf, int *trans,
>                        unsigned cyls_max, unsigned heads_max, unsigned secs_max,
>                        Error **errp);
> diff --git a/include/sysemu/blockdev.h b/include/sysemu/blockdev.h
> index c0ae3700ec..24954b94e0 100644
> --- a/include/sysemu/blockdev.h
> +++ b/include/sysemu/blockdev.h
> @@ -35,7 +35,6 @@ struct DriveInfo {
>      bool is_default;            /* Added by default_drive() ?  */
>      int media_cd;
>      QemuOpts *opts;
> -    char *serial;
>      QTAILQ_ENTRY(DriveInfo) next;
>  };
>  
> diff --git a/block/block-backend.c b/block/block-backend.c
> index d55c328736..2d1a3463e8 100644
> --- a/block/block-backend.c
> +++ b/block/block-backend.c
> @@ -419,7 +419,6 @@ static void drive_info_del(DriveInfo *dinfo)
>          return;
>      }
>      qemu_opts_del(dinfo->opts);
> -    g_free(dinfo->serial);
>      g_free(dinfo);
>  }
>  
> diff --git a/blockdev.c b/blockdev.c
> index 83b3cc12e9..695e10d398 100644
> --- a/blockdev.c
> +++ b/blockdev.c
> @@ -730,10 +730,6 @@ QemuOptsList qemu_legacy_drive_opts = {
>              .type = QEMU_OPT_STRING,
>              .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
>          },{
> -            .name = "serial",
> -            .type = QEMU_OPT_STRING,
> -            .help = "disk serial number",
> -        },{
>              .name = "file",
>              .type = QEMU_OPT_STRING,
>              .help = "file name",
> @@ -775,12 +771,10 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
>      const char *werror, *rerror;
>      bool read_only = false;
>      bool copy_on_read;
> -    const char *serial;
>      const char *filename;
>      Error *local_err = NULL;
>      int i;
>      const char *deprecated[] = {
> -        "serial"
>      };
>  
>      /* Change legacy command line options into QMP ones */
> @@ -948,9 +942,6 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
>          goto fail;
>      }
>  
> -    /* Serial number */
> -    serial = qemu_opt_get(legacy_opts, "serial");
> -
>      /* no id supplied -> create one */
>      if (qemu_opts_id(all_opts) == NULL) {
>          char *new_id;
> @@ -1025,7 +1016,6 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
>      dinfo->type = type;
>      dinfo->bus = bus_id;
>      dinfo->unit = unit_id;
> -    dinfo->serial = g_strdup(serial);
>  
>      blk_set_legacy_dinfo(blk, dinfo);
>  
> diff --git a/hw/block/block.c b/hw/block/block.c
> index b6c80ab0b7..cf0eb826f1 100644
> --- a/hw/block/block.c
> +++ b/hw/block/block.c
> @@ -15,19 +15,6 @@
>  #include "qapi/qapi-types-block.h"
>  #include "qemu/error-report.h"
>  
> -void blkconf_serial(BlockConf *conf, char **serial)
> -{
> -    DriveInfo *dinfo;
> -
> -    if (!*serial) {
> -        /* try to fall back to value set with legacy -drive serial=... */
> -        dinfo = blk_legacy_dinfo(conf->blk);
> -        if (dinfo) {
> -            *serial = g_strdup(dinfo->serial);
> -        }
> -    }
> -}
> -
>  void blkconf_blocksizes(BlockConf *conf)
>  {
>      BlockBackend *blk = conf->blk;
> diff --git a/hw/block/nvme.c b/hw/block/nvme.c
> index 811084b6a7..d5bf95b79b 100644
> --- a/hw/block/nvme.c
> +++ b/hw/block/nvme.c
> @@ -1215,7 +1215,6 @@ static void nvme_realize(PCIDevice *pci_dev, Error **errp)
>          return;
>      }
>  
> -    blkconf_serial(&n->conf, &n->serial);
>      if (!n->serial) {
>          error_setg(errp, "serial property not set");
>          return;
> diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
> index 50b5c869e3..225fe44b7a 100644
> --- a/hw/block/virtio-blk.c
> +++ b/hw/block/virtio-blk.c
> @@ -935,7 +935,6 @@ static void virtio_blk_device_realize(DeviceState *dev, Error **errp)
>          return;
>      }
>  
> -    blkconf_serial(&conf->conf, &conf->serial);
>      if (!blkconf_apply_backend_options(&conf->conf,
>                                         blk_is_read_only(conf->conf.blk), true,
>                                         errp)) {
> diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
> index f395d24592..573b022e1e 100644
> --- a/hw/ide/qdev.c
> +++ b/hw/ide/qdev.c
> @@ -188,7 +188,6 @@ static void ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind, Error **errp)
>          return;
>      }
>  
> -    blkconf_serial(&dev->conf, &dev->serial);
>      if (kind != IDE_CD) {
>          if (!blkconf_geometry(&dev->conf, &dev->chs_trans, 65535, 16, 255,
>                                errp)) {
> diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
> index ded23d36ca..aeaf611854 100644
> --- a/hw/scsi/scsi-disk.c
> +++ b/hw/scsi/scsi-disk.c
> @@ -2368,7 +2368,6 @@ static void scsi_realize(SCSIDevice *dev, Error **errp)
>          return;
>      }
>  
> -    blkconf_serial(&s->qdev.conf, &s->serial);
>      blkconf_blocksizes(&s->qdev.conf);
>  
>      if (s->qdev.conf.logical_block_size >
> diff --git a/hw/usb/dev-storage.c b/hw/usb/dev-storage.c
> index 481694a473..47b992f403 100644
> --- a/hw/usb/dev-storage.c
> +++ b/hw/usb/dev-storage.c
> @@ -606,7 +606,6 @@ static void usb_msd_storage_realize(USBDevice *dev, Error **errp)
>          return;
>      }
>  
> -    blkconf_serial(&s->conf, &dev->serial);
>      blkconf_blocksizes(&s->conf);
>      if (!blkconf_apply_backend_options(&s->conf, blk_is_read_only(blk), true,
>                                         errp)) {
> diff --git a/tests/ahci-test.c b/tests/ahci-test.c
> index 1a7b761304..937ed2f910 100644
> --- a/tests/ahci-test.c
> +++ b/tests/ahci-test.c
> @@ -180,12 +180,12 @@ static AHCIQState *ahci_boot(const char *cli, ...)
>          s = ahci_vboot(cli, ap);
>          va_end(ap);
>      } else {
> -        cli = "-drive if=none,id=drive0,file=%s,cache=writeback,serial=%s"
> -            ",format=%s"
> +        cli = "-drive if=none,id=drive0,file=%s,cache=writeback,format=%s"
>              " -M q35 "
>              "-device ide-hd,drive=drive0 "
> +            "-global ide-hd.serial=%s "
>              "-global ide-hd.ver=%s";
> -        s = ahci_boot(cli, tmp_path, "testdisk", imgfmt, "version");
> +        s = ahci_boot(cli, tmp_path, imgfmt, "testdisk", "version");
>      }
>  
>      return s;
> diff --git a/tests/ide-test.c b/tests/ide-test.c
> index 2384c2c3e2..f39431b1a9 100644
> --- a/tests/ide-test.c
> +++ b/tests/ide-test.c
> @@ -529,8 +529,8 @@ static void test_bmdma_no_busmaster(void)
>  static void test_bmdma_setup(void)
>  {
>      ide_test_start(
> -        "-drive file=%s,if=ide,serial=%s,cache=writeback,format=raw "
> -        "-global ide-hd.ver=%s",
> +        "-drive file=%s,if=ide,cache=writeback,format=raw "
> +        "-global ide-hd.serial=%s -global ide-hd.ver=%s",
>          tmp_path, "testdisk", "version");
>      qtest_irq_intercept_in(global_qtest, "ioapic");
>  }
> @@ -561,8 +561,8 @@ static void test_identify(void)
>      int ret;
>  
>      ide_test_start(
> -        "-drive file=%s,if=ide,serial=%s,cache=writeback,format=raw "
> -        "-global ide-hd.ver=%s",
> +        "-drive file=%s,if=ide,cache=writeback,format=raw "
> +        "-global ide-hd.serial=%s -global ide-hd.ver=%s",
>          tmp_path, "testdisk", "version");
>  
>      dev = get_pci_device(&bmdma_bar, &ide_bar);
> diff --git a/qemu-doc.texi b/qemu-doc.texi
> index 338477725f..282bc3dc35 100644
> --- a/qemu-doc.texi
> +++ b/qemu-doc.texi
> @@ -2850,11 +2850,6 @@ with ``-device ...,netdev=x''), or ``-nic user,smb=/some/dir''
>  (for embedded NICs). The new syntax allows different settings to be
>  provided per NIC.
>  
> -@subsection -drive serial=... (since 2.10.0)
> -
> -The drive serial argument is replaced by the the serial argument
> -that can be specified with the ``-device'' parameter.
> -
>  @subsection -usbdevice (since 2.10.0)
>  
>  The ``-usbdevice DEV'' argument is now a synonym for setting
> diff --git a/qemu-options.hx b/qemu-options.hx
> index c2531e2f3c..d5b0c26e8e 100644
> --- a/qemu-options.hx
> +++ b/qemu-options.hx
> @@ -805,7 +805,7 @@ ETEXI
>  DEF("drive", HAS_ARG, QEMU_OPTION_drive,
>      "-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i]\n"
>      "       [,cache=writethrough|writeback|none|directsync|unsafe][,format=f]\n"
> -    "       [,snapshot=on|off][,serial=s][,rerror=ignore|stop|report]\n"
> +    "       [,snapshot=on|off][,rerror=ignore|stop|report]\n"
>      "       [,werror=ignore|stop|report|enospc][,id=name][,aio=threads|native]\n"
>      "       [,readonly=on|off][,copy-on-read=on|off]\n"
>      "       [,discard=ignore|unmap][,detect-zeroes=on|off|unmap]\n"
> @@ -879,10 +879,6 @@ The default mode is @option{cache=writeback}.
>  Specify which disk @var{format} will be used rather than detecting
>  the format.  Can be used to specify format=raw to avoid interpreting
>  an untrusted format header.
> -@item serial=@var{serial}
> -This option specifies the serial number to assign to the device. This
> -parameter is deprecated, use the corresponding parameter of @code{-device}
> -instead.
>  @item werror=@var{action},rerror=@var{action}
>  Specify which @var{action} to take on write and read errors. Valid actions are:
>  "ignore" (ignore the error and try to continue), "stop" (pause QEMU),
> -- 
> 2.13.6
> 

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
Fedora Windows cross-compiler. Compile Windows programs, test, and
build Windows installers. Over 100 libraries supported.
http://fedoraproject.org/wiki/MinGW