linux-kernel - Re: [PATCH v7 1/1] iommu: enhance IOMMU dma mode build options

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Message-ID: <5CED322E.20102@huawei.com>
Date:   Tue, 28 May 2019 21:05:50 +0800
From:   "Leizhen (ThunderTown)" <thunder.leizhen@...wei.com>
To:     Joerg Roedel <joro@...tes.org>
CC:     Jean-Philippe Brucker <jean-philippe.brucker@....com>,
        John Garry <john.garry@...wei.com>,
        Robin Murphy <robin.murphy@....com>,
        Will Deacon <will.deacon@....com>,
        Jonathan Corbet <corbet@....net>,
        linux-doc <linux-doc@...r.kernel.org>,
        Sebastian Ott <sebott@...ux.ibm.com>,
        "Gerald Schaefer" <gerald.schaefer@...ibm.com>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Tony Luck <tony.luck@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        David Woodhouse <dwmw2@...radead.org>,
        iommu <iommu@...ts.linux-foundation.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-s390 <linux-s390@...r.kernel.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        x86 <x86@...nel.org>, linux-ia64 <linux-ia64@...r.kernel.org>,
        Hanjun Guo <guohanjun@...wei.com>
Subject: Re: [PATCH v7 1/1] iommu: enhance IOMMU dma mode build options



On 2019/5/27 22:21, Joerg Roedel wrote:
> Hi Zhen Lei,
> 
> On Mon, May 20, 2019 at 09:59:47PM +0800, Zhen Lei wrote:
>>  arch/ia64/kernel/pci-dma.c                |  2 +-
>>  arch/powerpc/platforms/powernv/pci-ioda.c |  3 ++-
>>  arch/s390/pci/pci_dma.c                   |  2 +-
>>  arch/x86/kernel/pci-dma.c                 |  7 ++---
>>  drivers/iommu/Kconfig                     | 44 ++++++++++++++++++++++++++-----
>>  drivers/iommu/amd_iommu_init.c            |  3 ++-
>>  drivers/iommu/intel-iommu.c               |  2 +-
>>  drivers/iommu/iommu.c                     |  3 ++-
>>  8 files changed, 48 insertions(+), 18 deletions(-)
> 
> This needs Acks from the arch maintainers of ia64, powerpc, s390 and
> x86, at least.
> 
> It is easier for them if you split it up into the Kconfig change and
> separete patches per arch and per iommu driver. Then collect the Acks on
> the individual patches.

OK, thanks. I will do it tomorrow.

> 
> Thanks,
> 
> 	Joerg
> 
> .
> 

-- 
Thanks!
BestRegards