linux-kernel - Re: [PATCH 1/1] iommu/vt-d: Support page request in scalable mode

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Message-ID: <20190111112941.nv6p2veleipwyirs@8bytes.org>
Date:   Fri, 11 Jan 2019 12:29:41 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     Lu Baolu <baolu.lu@...ux.intel.com>
Cc:     David Woodhouse <dwmw2@...radead.org>, ashok.raj@...el.com,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Liu Yi L <yi.l.liu@...el.com>,
        Kevin Tian <kevin.tian@...el.com>
Subject: Re: [PATCH 1/1] iommu/vt-d: Support page request in scalable mode

On Fri, Jan 11, 2019 at 01:04:57PM +0800, Lu Baolu wrote:
> From: Jacob Pan <jacob.jun.pan@...ux.intel.com>
> 
> VT-d Rev3.0 has made a few changes to the page request interface,
> 
> 1. widened PRQ descriptor from 128 bits to 256 bits;
> 2. removed streaming response type;
> 3. introduced private data that requires page response even the
>    request is not last request in group (LPIG).
> 
> This is a supplement to commit 1c4f88b7f1f92 ("iommu/vt-d: Shared
> virtual address in scalable mode") and makes the svm code compliant
> with VT-d Rev3.0.
> 
> Cc: Ashok Raj <ashok.raj@...el.com>
> Cc: Liu Yi L <yi.l.liu@...el.com>
> Cc: Kevin Tian <kevin.tian@...el.com>
> Signed-off-by: Jacob Pan <jacob.jun.pan@...ux.intel.com>
> Fixes: 1c4f88b7f1f92 ("iommu/vt-d: Shared virtual address in scalable mode")
> Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>

Applied for v5.1, thanks.