linux-kernel - Re: [PATCH] tpm/tpm_tis: Disable interrupts for Lenovo L590 devices

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <CTYXKJ1LRUK2.2PJ6ECEL6ISHP@suppilovahvero>
Date:   Tue, 11 Jul 2023 03:53:04 +0300
From:   "Jarkko Sakkinen" <jarkko@...nel.org>
To:     "Florian Bezdeka" <florian@...deka.de>,
        "Peter Huewe" <peterhuewe@....de>,
        "Jason Gunthorpe" <jgg@...pe.ca>,
        "Lino Sanfilippo" <l.sanfilippo@...bus.com>
Cc:     "Hans de Goede" <hdegoede@...hat.com>,
        <linux-integrity@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] tpm/tpm_tis: Disable interrupts for Lenovo L590 devices

On Tue Jun 20, 2023 at 2:11 PM EEST, Florian Bezdeka wrote:
> The Lenovo L590 suffers from an irq storm issue like the T490, T490s
> and P360 Tiny, so add an entry for it to tpm_tis_dmi_table and force
> polling.
>
> Link: https://bugzilla.redhat.com/show_bug.cgi?id=2214069#c0
> Fixes: e644b2f498d2 ("tpm, tpm_tis: Enable interrupt test")
> Signed-off-by: Florian Bezdeka <florian@...deka.de>
> ---
>  drivers/char/tpm/tpm_tis.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
> index 7db3593941ea..2771abb5628f 100644
> --- a/drivers/char/tpm/tpm_tis.c
> +++ b/drivers/char/tpm/tpm_tis.c
> @@ -138,6 +138,14 @@ static const struct dmi_system_id tpm_tis_dmi_table[] = {
>  			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L490"),
>  		},
>  	},
> +	{
> +		.callback = tpm_tis_disable_irq,
> +		.ident = "ThinkPad L590",
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
> +			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L590"),
> +		},
> +	},
>  	{
>  		.callback = tpm_tis_disable_irq,
>  		.ident = "UPX-TGL",
>
> ---
> base-commit: 9561de3a55bed6bdd44a12820ba81ec416e705a7
> change-id: 20230620-flo-lenovo-l590-tpm-fix-4aeb6aa25667
>
> Best regards,
> -- 
> Florian Bezdeka <florian@...deka.de>

Thanks, applied.

BR, Jarkko