Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <a1030692-e80f-a785-2e90-238d5f00a181@molgen.mpg.de>
Date:   Wed, 24 May 2023 10:43:26 +0200
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.11.0
Subject: Re: [PATCH] tpm: tpm_tis: Narrow the AAEON DMI quirk to UPX-i11 only
Content-Language: en-US
To:     Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
References: <20230524055815.10165-1-peter.ujfalusi@linux.intel.com>
Cc:     peterhuewe@gmx.de, jarkko@kernel.org, jgg@ziepe.ca,
        linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org,
        l.sanfilippo@kunbus.com, jsnitsel@redhat.com
From:   Paul Menzel <pmenzel@molgen.mpg.de>
In-Reply-To: <20230524055815.10165-1-peter.ujfalusi@linux.intel.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Precedence: bulk

Dear Peter,


Thank you for your patch.

Am 24.05.23 um 07:58 schrieb Peter Ujfalusi:
> The original patch which added the quirk would apply to all AAEON machines,
> which might or might not be valid.
> 
> The issue was discovered on UPX-i11 (TigerLake), it is not known if the
> i12 (AlderLake) version is affected.
> UP2 (ApolloLake) does not even have TMP module (no TPM drivers probing

s/TMP/TPM/

> and confirmed by dmidecode).

Another nit, the official spelling of the SOC names is with a space, for 
example, Tiger Lake [1].

> Let's make the quirk to be applicable for UPX-i11 (UPX-TGL01) only.
> 
> Fixes: 95a9359ee22f ("tpm: tpm_tis: Disable interrupts for AEON UPX-i11")
> Suggested-by: Jerry Snitselaar <jsnitsel@redhat.com>
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
> ---
> Hi Jarkko,
> 
> the patch is generated on top of your
> git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git : irq-storm
> 
> Regards,
> Peter
> 
>   drivers/char/tpm/tpm_tis.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
> index 7db3593941ea..4357d4ba8f9e 100644
> --- a/drivers/char/tpm/tpm_tis.c
> +++ b/drivers/char/tpm/tpm_tis.c
> @@ -143,6 +143,7 @@ static const struct dmi_system_id tpm_tis_dmi_table[] = {
>   		.ident = "UPX-TGL",
>   		.matches = {
>   			DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
> +			DMI_MATCH(DMI_PRODUCT_NAME, "UPX-TGL01"),
>   		},
>   	},
>   	{}

Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>


Kind regards,

Paul


[1]: https://en.wikipedia.org/wiki/Tiger_Lake