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Message-ID: <20161110104544.GA2078@8bytes.org>
Date:   Thu, 10 Nov 2016 11:45:44 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     David Woodhouse <dwmw2@...radead.org>
Cc:     Xunlei Pang <xlpang@...hat.com>, iommu@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org,
        Mika Kuoppala <mika.kuoppala@...ux.intel.com>
Subject: Re: [PATCH] iommu/vt-d: Fix the size calculation of pasid table

Hi David,

On Sun, Oct 30, 2016 at 06:18:22AM -0600, David Woodhouse wrote:
> +	/* Start at 2 because it's defined as 1^(1+PSS) */

This probably means 2^(1+PSS), right?

> +	iommu->pasid_max = 2 << ecap_pss(iommu->ecap);

Otherwise the patch looks good. Do you want to send it upstream yourself
or should I pick it up?



	Joerg

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