linux-kernel - Re: [PATCH RESEND 1/1] PCI: Add ATS-disable quirk for AMD Radeon R7 GPUs

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

Message-ID: <20190411123837.GF3349@suse.de>
Date:   Thu, 11 Apr 2019 14:38:37 +0200
From:   Joerg Roedel <jroedel@...e.de>
To:     Nikolai Kostrigin <nickel@...linux.org>
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND 1/1] PCI: Add ATS-disable quirk for AMD Radeon R7
 GPUs

On Mon, Apr 08, 2019 at 01:37:25PM +0300, Nikolai Kostrigin wrote:
> ATS is broken on this hardware (at least for Stoney Ridge
> based laptop) and causes IOMMU stalls and
> system failure. Disable ATS on these devices to make them
> usable again with IOMMU enabled
> Thanks to Joerg Roedel <jroedel@...e.de> for help.
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=194521
> 
> Signed-off-by: Nikolai Kostrigin <nickel@...linux.org>

Acked-by: Joerg Roedel <jroedel@...e.de>

I helped Nikolai with tracking this issue down to ATS handling and
suggested adding the quirk.