linux-kernel - Re: [PATCH 1/2] iommu/vt-d: Remove change

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Message-ID: <20190130163159.t2633rwpjbffjyvz@8bytes.org>
Date:   Wed, 30 Jan 2019 17:32:00 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     Peter Xu <peterx@...hat.com>
Cc:     iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Jason Wang <jasowang@...hat.com>,
        Jerome Glisse <jglisse@...hat.com>
Subject: Re: [PATCH 1/2] iommu/vt-d: Remove change_pte notifier

On Wed, Jan 30, 2019 at 01:57:57PM +0800, Peter Xu wrote:
> The change_pte() interface is tailored for PFN updates, while the
> other notifier invalidate_range() should be enough for Intel IOMMU
> cache flushing.  Actually we've done similar thing for AMD IOMMU
> already in 8301da53fbc1 ("iommu/amd: Remove change_pte mmu_notifier
> call-back", 2014-07-30) but the Intel IOMMU driver still have it.
> 
> Signed-off-by: Peter Xu <peterx@...hat.com>

Applied to x86/vt-d, thanks.