Re: [PATCH 1/2] bhyve: add UTC clock support

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On Sun, Jul 19, 2015 at 11:20:35AM +0300, Roman Bogorodskiy wrote:
> Bhyve as of r279225 (FreeBSD -CURRENT) or r284894 (FreeBSD 10-STABLE)
> supports using UTC time offset via the '-u' argument to bhyve(8). By
> default it's still using localtime.
> 
> Make the bhyve driver use UTC clock if it's requested by specifying
> <clock offset='utc'> in domain XML and if the bhyve(8) binary supports
> the '-u' flag.
> ---
>  src/bhyve/bhyve_capabilities.c                     | 31 ++++++++++++++++++++++
>  src/bhyve/bhyve_capabilities.h                     |  5 ++++
>  src/bhyve/bhyve_command.c                          | 21 +++++++++++++++
>  src/bhyve/bhyve_driver.c                           | 13 +++++++++
>  src/bhyve/bhyve_driver.h                           |  2 ++
>  src/bhyve/bhyve_utils.h                            |  1 +
>  .../bhyvexml2argvdata/bhyvexml2argv-acpiapic.args  |  2 +-
>  tests/bhyvexml2argvdata/bhyvexml2argv-base.args    |  2 +-
>  .../bhyvexml2argv-bhyveload-explicitargs.args      |  2 +-
>  tests/bhyvexml2argvdata/bhyvexml2argv-console.args |  2 +-
>  .../bhyvexml2argv-custom-loader.args               |  2 +-
>  .../bhyvexml2argv-disk-cdrom-grub.args             |  2 +-
>  .../bhyvexml2argv-disk-cdrom.args                  |  2 +-
>  .../bhyvexml2argv-disk-virtio.args                 |  2 +-
>  .../bhyvexml2argv-grub-bootorder.args              |  2 +-
>  .../bhyvexml2argv-grub-bootorder2.args             |  2 +-
>  .../bhyvexml2argv-grub-defaults.args               |  2 +-
>  .../bhyvexml2argvdata/bhyvexml2argv-localtime.args |  3 +++
>  .../bhyvexml2argv-localtime.ldargs                 |  1 +
>  .../bhyvexml2argvdata/bhyvexml2argv-localtime.xml  | 23 ++++++++++++++++
>  tests/bhyvexml2argvdata/bhyvexml2argv-macaddr.args |  2 +-
>  .../bhyvexml2argv-serial-grub-nocons.args          |  2 +-
>  .../bhyvexml2argv-serial-grub.args                 |  2 +-
>  tests/bhyvexml2argvdata/bhyvexml2argv-serial.args  |  2 +-
>  tests/bhyvexml2argvtest.c                          |  2 ++
>  25 files changed, 117 insertions(+), 15 deletions(-)
>  create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-localtime.args
>  create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-localtime.ldargs
>  create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-localtime.xml
> 
> diff --git a/src/bhyve/bhyve_capabilities.c b/src/bhyve/bhyve_capabilities.c
> index 3a55879..9b21649 100644
> --- a/src/bhyve/bhyve_capabilities.c
> +++ b/src/bhyve/bhyve_capabilities.c
> @@ -141,3 +141,34 @@ virBhyveProbeGrubCaps(virBhyveGrubCapsFlags *caps)
>      VIR_FREE(binary);
>      return ret;
>  }
> +
> +int
> +virBhyveProbeCaps(virBhyveCapsFlags *caps)

This output parameter is intended to be a union of many enum
values, so you can't declare it as an enum - it should be a
plain unsigned int.

> +{
> +    char *binary, *help;
> +    virCommandPtr cmd = NULL;
> +    int ret = 0, exit;
> +
> +    binary = virFindFileInPath("bhyve");
> +    if (binary == NULL)
> +        goto out;
> +    if (!virFileIsExecutable(binary))
> +        goto out;
> +
> +    cmd = virCommandNew(binary);
> +    virCommandAddArg(cmd, "-h");
> +    virCommandSetErrorBuffer(cmd, &help);
> +    if (virCommandRun(cmd, &exit) < 0) {
> +        ret = -1;
> +        goto out;
> +    }
> +
> +    if (strstr(help, "-u:") != NULL)
> +        *caps |= BHYVE_CAP_RTC_UTC;
> +
> + out:
> +    VIR_FREE(help);
> +    virCommandFree(cmd);
> +    VIR_FREE(binary);
> +    return ret;
> +}


ACK if that is fixed.

Regards,
Daniel
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