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Date:   Tue, 8 Sep 2020 19:36:56 +0200
From:   Borislav Petkov <bp@alien8.de>
To:     "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc:     Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
        kitsunyan <kitsunyan@airmail.cc>,
        "Brown, Len" <len.brown@intel.com>, X86 ML <x86@kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Sultan Alsawaf <sultan@kerneltoast.com>
Subject: Re: [PATCH] x86/msr: do not warn on writes to OC_MAILBOX
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On Tue, Sep 08, 2020 at 07:29:11PM +0200, Jason A. Donenfeld wrote:
> Well that's not cool.

So you're saying that if someone wants to kill its box by poking at that
MSR, we should just let her/him?

If anything, I think that a BIG FAT WARNING at least would make sense.

Now, if there were a proper interface which would allow only valid
commands, now that would be optimal...

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette