Re: [Qemu-devel] [PATCH 2/5] Add -uuid command line option.

[Anthony Liguori]

Gleb Natapov wrote:
> Let user specify UUID of the virtual machine.
>   

Looks good to me.  Note, this is a very common feature request for 
management tools running agents within a guest.  They need to have a 
unique identifier to be able to correlate guests with hosts.  Normally, 
this would be exposed via DMI tables but that's an obvious extension.

Reviewed-by: Anthony Liguori <address@hidden>

Regards,

Anthony Liguori

> Signed-off-by: Gleb Natapov <address@hidden>
> ---
>
>  vl.c |    8 ++++++++
>  1 files changed, 8 insertions(+), 0 deletions(-)
>
> diff --git a/vl.c b/vl.c
> index 18ddcce..8e9e841 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -240,6 +240,8 @@ static CPUState *cur_cpu;
>  static CPUState *next_cpu;
>  static int event_pending = 1;
>  
> +const char *qemu_uuid_str;
> +
>  #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
>  
>  /***********************************************************/
> @@ -7195,6 +7197,7 @@ static void help(int exitcode)
>             "-g WxH[xDEPTH]  Set the initial graphical resolution and depth\n"
>  #endif
>             "-name string    set the name of the guest\n"
> +           "-uuid %%08x-%%04x-%%04x-%%04x-%%012x specify machine UUID\n"
>             "\n"
>             "Network options:\n"
>             "-net nic[,vlan=n][,macaddr=addr][,model=type]\n"
> @@ -7379,6 +7382,7 @@ enum {
>      QEMU_OPTION_clock,
>      QEMU_OPTION_startdate,
>      QEMU_OPTION_tb_size,
> +    QEMU_OPTION_uuid,
>  };
>  
>  typedef struct QEMUOption {
> @@ -7467,6 +7471,7 @@ const QEMUOption qemu_options[] = {
>  #ifdef CONFIG_CURSES
>      { "curses", 0, QEMU_OPTION_curses },
>  #endif
> +    { "uuid", HAS_ARG, QEMU_OPTION_uuid },
>  
>      /* temporary options */
>      { "usb", 0, QEMU_OPTION_usb },
> @@ -8227,6 +8232,9 @@ int main(int argc, char **argv)
>              case QEMU_OPTION_show_cursor:
>                  cursor_hide = 0;
>                  break;
> +            case QEMU_OPTION_uuid:
> +                qemu_uuid_str = optarg;
> +                break;
>             case QEMU_OPTION_daemonize:
>                 daemonize = 1;
>                 break;
>
>
>
>