linux-kernel - Re: [PATCH 1/1] tpm: disable hwrng for fTPM on some AMD designs

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Message-ID: <b1dd27df-744b-3977-0a86-f5dde8e24288@amd.com>
Date:   Thu, 27 Jul 2023 10:42:33 -0500
From:   Mario Limonciello <mario.limonciello@....com>
To:     Daniil Stas <daniil.stas@...teo.net>
Cc:     James.Bottomley@...senpartnership.com, Jason@...c4.com,
        jarkko@...nel.org, linux-integrity@...r.kernel.org,
        linux-kernel@...r.kernel.org, regressions@...mhuis.info,
        stable@...r.kernel.org, torvalds@...ux-foundation.org
Subject: Re: [PATCH 1/1] tpm: disable hwrng for fTPM on some AMD designs

On 7/27/2023 10:38, Daniil Stas wrote:
> Hi,
> I am still getting fTPM stutters with 6.4.3 kernel on Asus GA402RJ
> laptop.
> Compiling kernel without TPM support makes the stutters go away.
> The fTPM firmware version is 0x3005700020005 on my machine.

Can you please open up a kernel bugzilla and attach your dmesg to it 
both with TPM enabled and disabled?

You can CC me on it directly.