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Date:   Wed, 3 Feb 2021 08:29:57 +0800
From:   Lu Baolu <>
To:     "Raj, Ashok" <>
        Yian Chen <>,
        Joerg Roedel <>,
Subject: Re: [PATCH 2/3] iommu/vt-d: Parse SATC reporting structure

Hi Ashok,

On 2/3/21 12:41 AM, Raj, Ashok wrote:
> On Tue, Feb 02, 2021 at 12:40:56PM +0800, Lu Baolu wrote:
>> From: Yian Chen <>
>> Software should parse every SATC table and all devices in the tables
>> reported by the BIOS and keep the information in kernel list for further
>> SATC policy deployment.
> The last part seems bit vague? Are you trying to imply,
> if kernel is booted with noats for instance, a device listed in SATC table
> as "requires ATS" will fail to load?
> Otherwise its not clear what the policy enforcement means.

Yes. This is a bit vague. The ATS policy is out of the purpose of this
patch. It only parses the table and keep the device list for further

Best regards,

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