From: Konrad Rzeszutek Wilk <konrad.wilk-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
To: Lu Baolu <baolu.lu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Cc: kevin.tian-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org,
ashok.raj-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
alan.cox-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
pengfei.xu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
jacob.jun.pan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Subject: Re: [PATCH v3 08/10] iommu/vt-d: Check whether device requires bounce buffer
Date: Wed, 24 Apr 2019 14:27:30 -0400 [thread overview]
Message-ID: <20190424182730.GA17505@char.us.oracle.com> (raw)
In-Reply-To: <e11489cf-87cc-a956-7c6c-ffdd26a4e3ec-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
On Tue, Apr 23, 2019 at 03:35:51PM +0800, Lu Baolu wrote:
> Hi,
>
> On 4/23/19 2:08 PM, Christoph Hellwig wrote:
> > > > Again, this and the option should not be in a specific iommu driver.
> > > >
> > >
> > > The option of whether bounce is ignored should be in the specific iommu
> > > driver.
> >
> > Why? As a user I could not care less which IOMMU driver my particular
> > system uses.
> >
>
> Looks reasonable to me. Let's listen to more opinions.
I agree with Christoph here.
>
> Best regards,
> Lu Baolu
WARNING: multiple messages have this Message-ID (diff)
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: kevin.tian@intel.com, mika.westerberg@linux.intel.com,
ashok.raj@intel.com, alan.cox@intel.com,
Robin Murphy <robin.murphy@arm.com>,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
pengfei.xu@intel.com, jacob.jun.pan@intel.com,
David Woodhouse <dwmw2@infradead.org>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v3 08/10] iommu/vt-d: Check whether device requires bounce buffer
Date: Wed, 24 Apr 2019 14:27:30 -0400 [thread overview]
Message-ID: <20190424182730.GA17505@char.us.oracle.com> (raw)
Message-ID: <20190424182730.VCD9cicTxAvyVDMxoXGoTtVuQxnaAixADlzInMuqgEY@z> (raw)
In-Reply-To: <e11489cf-87cc-a956-7c6c-ffdd26a4e3ec@linux.intel.com>
On Tue, Apr 23, 2019 at 03:35:51PM +0800, Lu Baolu wrote:
> Hi,
>
> On 4/23/19 2:08 PM, Christoph Hellwig wrote:
> > > > Again, this and the option should not be in a specific iommu driver.
> > > >
> > >
> > > The option of whether bounce is ignored should be in the specific iommu
> > > driver.
> >
> > Why? As a user I could not care less which IOMMU driver my particular
> > system uses.
> >
>
> Looks reasonable to me. Let's listen to more opinions.
I agree with Christoph here.
>
> Best regards,
> Lu Baolu
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
next prev parent reply other threads:[~2019-04-24 18:27 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-21 1:17 [PATCH v3 00/10] iommu: Bounce page for untrusted devices Lu Baolu
2019-04-21 1:17 ` Lu Baolu
[not found] ` <20190421011719.14909-1-baolu.lu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2019-04-21 1:17 ` [PATCH v3 01/10] iommu: Add helper to get minimal page size of domain Lu Baolu
2019-04-21 1:17 ` Lu Baolu
2019-04-29 10:55 ` Robin Murphy
2019-04-29 10:55 ` Robin Murphy
2019-04-30 0:40 ` Lu Baolu
2019-04-30 0:40 ` Lu Baolu
2019-04-21 1:17 ` [PATCH v3 02/10] swiotlb: Factor out slot allocation and free Lu Baolu
2019-04-21 1:17 ` Lu Baolu
2019-04-22 16:45 ` Christoph Hellwig
2019-04-22 16:45 ` Christoph Hellwig
2019-04-23 1:58 ` Lu Baolu
2019-04-23 1:58 ` Lu Baolu
2019-04-23 6:12 ` Christoph Hellwig
2019-04-23 6:12 ` Christoph Hellwig
2019-04-23 7:32 ` Lu Baolu
2019-04-23 7:32 ` Lu Baolu
2019-04-24 14:45 ` Christoph Hellwig
2019-04-24 14:45 ` Christoph Hellwig
[not found] ` <20190424144532.GA21480-jcswGhMUV9g@public.gmane.org>
2019-04-25 2:07 ` Lu Baolu
2019-04-25 2:07 ` Lu Baolu
2019-04-26 15:04 ` Christoph Hellwig
2019-04-26 15:04 ` Christoph Hellwig
2019-04-29 5:10 ` Lu Baolu
2019-04-29 5:10 ` Lu Baolu
2019-04-29 11:06 ` Robin Murphy
2019-04-29 11:06 ` Robin Murphy
2019-04-29 11:44 ` Christoph Hellwig
2019-04-29 11:44 ` Christoph Hellwig
2019-05-06 1:54 ` Lu Baolu
2019-05-13 7:05 ` Christoph Hellwig
2019-05-16 1:53 ` Lu Baolu
2019-04-30 2:02 ` Lu Baolu
2019-04-30 2:02 ` Lu Baolu
2019-04-30 9:53 ` Robin Murphy
2019-04-30 9:53 ` Robin Murphy
2019-05-02 1:47 ` Lu Baolu
2019-05-02 1:47 ` Lu Baolu
2019-04-21 1:17 ` [PATCH v3 03/10] swiotlb: Limit tlb address range inside slot pool Lu Baolu
2019-04-21 1:17 ` Lu Baolu
2019-04-21 1:17 ` [PATCH v3 04/10] swiotlb: Extend swiotlb to support page bounce Lu Baolu
2019-04-21 1:17 ` Lu Baolu
2019-04-21 1:17 ` [PATCH v3 05/10] iommu: Add bounce page APIs Lu Baolu
2019-04-21 1:17 ` Lu Baolu
2019-04-21 1:17 ` [PATCH v3 06/10] iommu/vt-d: Add trace events for domain map/unmap Lu Baolu
2019-04-21 1:17 ` Lu Baolu
2019-04-21 1:17 ` [PATCH v3 07/10] iommu/vt-d: Keep swiotlb on if bounce page is necessary Lu Baolu
2019-04-21 1:17 ` Lu Baolu
2019-04-22 16:47 ` Christoph Hellwig
2019-04-22 16:47 ` Christoph Hellwig
2019-04-23 2:00 ` Lu Baolu
2019-04-23 2:00 ` Lu Baolu
2019-04-21 1:17 ` [PATCH v3 08/10] iommu/vt-d: Check whether device requires bounce buffer Lu Baolu
2019-04-21 1:17 ` Lu Baolu
2019-04-22 16:47 ` Christoph Hellwig
2019-04-22 16:47 ` Christoph Hellwig
[not found] ` <20190422164755.GC31181-jcswGhMUV9g@public.gmane.org>
2019-04-23 2:03 ` Lu Baolu
2019-04-23 2:03 ` Lu Baolu
2019-04-23 6:08 ` Christoph Hellwig
2019-04-23 6:08 ` Christoph Hellwig
2019-04-23 7:35 ` Lu Baolu
2019-04-23 7:35 ` Lu Baolu
[not found] ` <e11489cf-87cc-a956-7c6c-ffdd26a4e3ec-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2019-04-24 18:27 ` Konrad Rzeszutek Wilk [this message]
2019-04-24 18:27 ` Konrad Rzeszutek Wilk
2019-04-21 1:17 ` [PATCH v3 09/10] iommu/vt-d: Add dma sync ops for untrusted devices Lu Baolu
2019-04-21 1:17 ` Lu Baolu
2019-04-21 1:17 ` [PATCH v3 10/10] iommu/vt-d: Use bounce buffer " Lu Baolu
2019-04-21 1:17 ` Lu Baolu
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