Re: [PATCH] fw_cfg: Allow reboot-timeout=-1 again

[Markus Armbruster <armbru@redhat.com>]

"Dr. David Alan Gilbert (git)" <dgilbert@redhat.com> writes:

> From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
>
> Commit ee5d0f89de3e53cdb0dc added range checking on reboot-timeout
> to only allow the range 0..65535; however both qemu and libvirt document
> the special value -1  to mean don't reboot.
> Allow it again.
>
> Fixes: ee5d0f89de3e53cdb0dc ("fw_cfg: Fix -boot reboot-timeout error checking")
> RH bz: https://bugzilla.redhat.com/show_bug.cgi?id=1765443
> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
> ---
>  hw/nvram/fw_cfg.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c
> index 7dc3ac378e..1a9ec44232 100644
> --- a/hw/nvram/fw_cfg.c
> +++ b/hw/nvram/fw_cfg.c
> @@ -247,10 +247,11 @@ static void fw_cfg_reboot(FWCfgState *s)
>  
>      if (reboot_timeout) {
>          rt_val = qemu_opt_get_number(opts, "reboot-timeout", -1);
> +
>          /* validate the input */
> -        if (rt_val < 0 || rt_val > 0xffff) {
> +        if (rt_val < -1 || rt_val > 0xffff) {
>              error_report("reboot timeout is invalid,"
> -                         "it should be a value between 0 and 65535");
> +                         "it should be a value between -1 and 65535");
>              exit(1);
>          }
>      }

Semantic conflict with "PATCH] qemu-options.hx: Update for
reboot-timeout parameter", Message-Id:
<20191015151451.727323-1-hhan@redhat.com>.

I'm too tired right now to risk an opinion on which one we want.