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From: Auger Eric <eric.auger@redhat.com>
To: Tomasz Nowicki <tnowicki@marvell.com>,
	"eric.auger.pro@gmail.com" <eric.auger.pro@gmail.com>,
	"iommu@lists.linux-foundation.org"
	<iommu@lists.linux-foundation.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	"kvmarm@lists.cs.columbia.edu" <kvmarm@lists.cs.columbia.edu>,
	"joro@8bytes.org" <joro@8bytes.org>,
	"alex.williamson@redhat.com" <alex.williamson@redhat.com>,
	"jacob.jun.pan@linux.intel.com" <jacob.jun.pan@linux.intel.com>,
	"yi.l.liu@intel.com" <yi.l.liu@intel.com>,
	"jean-philippe.brucker@arm.com" <jean-philippe.brucker@arm.com>,
	"will.deacon@arm.com" <will.deacon@arm.com>,
	"robin.murphy@arm.com" <robin.murphy@arm.com>
Cc: "kevin.tian@intel.com" <kevin.tian@intel.com>,
	"ashok.raj@intel.com" <ashok.raj@intel.com>,
	"marc.zyngier@arm.com" <marc.zyngier@arm.com>,
	"peter.maydell@linaro.org" <peter.maydell@linaro.org>,
	"vincent.stehle@arm.com" <vincent.stehle@arm.com>,
	"zhangfei.gao@gmail.com" <zhangfei.gao@gmail.com>,
	"tina.zhang@intel.com" <tina.zhang@intel.com>
Subject: Re: [PATCH v9 00/11] SMMUv3 Nested Stage Setup (VFIO part)
Date: Wed, 20 Nov 2019 11:18:12 +0100
Message-ID: <3741c034-08f1-9dbb-ab06-434f3a8bd782@redhat.com> (raw)
In-Reply-To: <a35234a6-e386-fc8e-fcc4-5db4601b00d2@marvell.com>

Hi Tomasz,

On 11/20/19 9:15 AM, Tomasz Nowicki wrote:
> Hi Eric,
> 
> On 11.07.2019 15:56, Eric Auger wrote:
>> This series brings the VFIO part of HW nested paging support
>> in the SMMUv3.
>>
>> The series depends on:
>> [PATCH v9 00/14] SMMUv3 Nested Stage Setup (IOMMU part)
>> (https://www.spinics.net/lists/kernel/msg3187714.html)
>>
>> 3 new IOCTLs are introduced that allow the userspace to
>> 1) pass the guest stage 1 configuration
>> 2) pass stage 1 MSI bindings
>> 3) invalidate stage 1 related caches
>>
>> They map onto the related new IOMMU API functions.
>>
>> We introduce the capability to register specific interrupt
>> indexes (see [1]). A new DMA_FAULT interrupt index allows to register
>> an eventfd to be signaled whenever a stage 1 related fault
>> is detected at physical level. Also a specific region allows
>> to expose the fault records to the user space.
>>
>> Best Regards
>>
>> Eric
>>
>> This series can be found at:
>> https://github.com/eauger/linux/tree/v5.3.0-rc0-2stage-v9
> 
> I think you have already tested on ThunderX2, but as a formality, for 
> the whole series:
> 
> Tested-by: Tomasz Nowicki <tnowicki@marvell.com>
> qemu: https://github.com/eauger/qemu/tree/v4.1.0-rc0-2stage-rfcv5
> kernel: https://github.com/eauger/linux/tree/v5.3.0-rc0-2stage-v9 + 
> Shameer's fix patch
> 
> In my test I assigned Intel 82574L NIC and perform iperf tests.

Thank you for your testing efforts.
> 
> Other folks from Marvell claimed this to be important feature so I asked 
> them to review and speak up on mailing list.

That's nice to read that!  So it is time for me to rebase both the iommu
and vfio parts. I will submit something quickly. Then I would encourage
the review efforts to focus first on the iommu part.

Thanks

Eric
> 
> Thanks,
> Tomasz
> 


  reply index

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-11 13:56 Eric Auger
2019-07-11 13:56 ` [PATCH v9 01/11] vfio: VFIO_IOMMU_SET_PASID_TABLE Eric Auger
2019-07-11 13:56 ` [PATCH v9 02/11] vfio: VFIO_IOMMU_CACHE_INVALIDATE Eric Auger
2019-07-11 13:56 ` [PATCH v9 03/11] vfio: VFIO_IOMMU_SET_MSI_BINDING Eric Auger
2019-07-11 13:56 ` [PATCH v9 04/11] vfio/pci: Add VFIO_REGION_TYPE_NESTED region type Eric Auger
2019-07-11 13:56 ` [PATCH v9 05/11] vfio/pci: Register an iommu fault handler Eric Auger
2019-07-11 13:56 ` [PATCH v9 06/11] vfio/pci: Allow to mmap the fault queue Eric Auger
2019-07-11 13:56 ` [PATCH v9 07/11] vfio: Use capability chains to handle device specific irq Eric Auger
2019-07-11 13:56 ` [PATCH v9 08/11] vfio: Add new IRQ for DMA fault reporting Eric Auger
2019-07-11 13:56 ` [PATCH v9 09/11] vfio/pci: Add framework for custom interrupt indices Eric Auger
2019-07-11 13:56 ` [PATCH v9 10/11] vfio/pci: Register and allow DMA FAULT IRQ signaling Eric Auger
2019-07-11 13:56 ` [PATCH v9 11/11] vfio: Document nested stage control Eric Auger
     [not found] ` <f5b4b97b197d4bab8f3703eba2e966c4@huawei.com>
2019-11-12 11:28   ` [PATCH v9 00/11] SMMUv3 Nested Stage Setup (VFIO part) Auger Eric
2019-11-12 13:06     ` Shameerali Kolothum Thodi
2019-11-12 13:21       ` Auger Eric
2019-11-12 14:21         ` Shameerali Kolothum Thodi
2019-11-12 17:56         ` Shameerali Kolothum Thodi
2019-11-12 20:34           ` Auger Eric
2019-11-13 16:24             ` Shameerali Kolothum Thodi
2019-11-20  8:15 ` Tomasz Nowicki
2019-11-20 10:18   ` Auger Eric [this message]
2020-03-03 12:57     ` zhangfei
2020-03-03 13:14       ` Auger Eric

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