[PATCH 2/2] watchdog: add watchdog behavior configuration

Heinrich Schuchardt xypron.glpk at gmx.de
Fri Sep 25 13:29:18 CEST 2020


On 25.09.20 10:36, Wolfgang Denk wrote:
> Dear Tom,
>
> In message <20200924131931.GF14816 at bill-the-cat> you wrote:
>>
>> I'm talking about the case where we say we've enabled the WDT to
>> supervise OS, but then bootefi something and have disabled the watchdog
>> (to meet UEFI requirements) but didn't tell the user we've turned off
>> the WDT that we had told them is on.
>
> Any so-called "watchdog" that can be disabled / switched off by
> software is not really woth this name.  As such, the concept of
> disabling a watchdog in software, is misleading at best and should
> never ibe implemented.

If we want to boot UEFI payloads, we will have to follow the UEFI
specification even if we think it is not perfect.

Best regards

Heinrich

>
> Best regards,
>
> Wolfgang Denk
>



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