linux-kernel - Re: [PATCH 1/1] AMD Family15h Model10-1Fh erratum 746 Workaround

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: <50FFFCA5.1010309@amd.com>
Date:	Wed, 23 Jan 2013 09:07:17 -0600
From:	Suravee Suthikulpanit <suravee.suthikulpanit@....com>
To:	Joerg Roedel <joro@...tes.org>
CC:	<iommu@...ts.linux-foundation.org>, Borislav Petkov <bp@...en8.de>,
	<linux-kernel@...r.kernel.org>,
	Udo van den Heuvel <udovdh@...all.nl>,
	<ssg.sos.staff@...txmail.amd.com>
Subject: Re: [PATCH 1/1] AMD Family15h Model10-1Fh erratum 746 Workaround

On 1/23/2013 1:06 AM, Joerg Roedel wrote:

> On Tue, Jan 22, 2013 at 05:19:10PM -0600, Suthikulpanit, Suravee wrote:
>> From: Suravee Suthikulpanit <suravee.suthikulpanit@....com>
>> @@ -1171,6 +1195,8 @@ static int iommu_init_pci(struct amd_iommu *iommu)
>>   		for (i = 0; i < 0x83; i++)
>>   			iommu->stored_l2[i] = iommu_read_l2(iommu, i);
>>   	}
>> +	
>> +	amd_iommu_apply_erratum_746(iommu);
> This will also be applied to RD890 IOMMUs, right? This workaround should
> be limited to Trinity IOMMUs.

Inside the function, it checks the family and model number.  Only Trinitiy is affected.

Suravee


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/