Date:   Mon, 13 Feb 2023 16:40:21 +0100
From:   Borislav Petkov <bp@alien8.de>
To:     Juergen Gross <jgross@suse.com>
Cc:     linux-kernel@vger.kernel.org, x86@kernel.org,
        lists@nerdbynature.de, mikelley@microsoft.com,
        torvalds@linux-foundation.org,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH v2 2/8] x86/mtrr: support setting MTRR state for software
 defined MTRRs
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On Mon, Feb 13, 2023 at 04:18:48PM +0100, Juergen Gross wrote:
> Yes, you still could construct cases where it would go wrong, but I don't
> think we should over-engineer it.

Actually, we should allow only those for which we know they get special
treatment for MTRRs settings and warn for all the rest.

And judging by Dave's reply, I think TDX should be in that category too
since it throws #VEs...

-- 
Regards/Gruss,
    Boris.

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