"default" watchdog device - ?

[lejeczek]

On 15/03/2022 11:21, Daniel P. Berrangé wrote:
> On Tue, Mar 15, 2022 at 10:39:50AM +0000, lejeczek wrote:
>> Hi guys.
>>
>> Without explicitly, manually using watchdog device for a VM, the VM (centOS
>> 8 Stream 4.18.0-365.el8.x86_64) shows '/dev/watchdog' exists.
>> To double check - 'dumpxml' does not show any such device - what kind of a
>> 'watchdog' that is?
> The kernel can always provide a pure software watchdog IIRC. It can be
> useful if a userspace app wants a watchdog. The limitation is that it
> relies on the kernel remaining functional, as there's no hardware
> backing it up.
>
> Regards,
> Daniel
many thanks Daniel
Is qemu's watchdog configurable just like on bare-metal? 
Perhaps same very way - via/in BIOS?
L.