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From: zhangfei <zhangfei.gao@linaro.org>
To: Auger Eric <eric.auger@redhat.com>,
	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>,
	wangzhou1 <wangzhou1@hisilicon.com>,
	Kenneth Lee <kenneth-lee-2012@foxmail.com>
Subject: Re: Re: [PATCH v9 00/11] SMMUv3 Nested Stage Setup (VFIO part)
Date: Tue, 3 Mar 2020 20:57:27 +0800
Message-ID: <e0133df5-073b-13e1-8399-ff48bfaef5e5@linaro.org> (raw)
In-Reply-To: <3741c034-08f1-9dbb-ab06-434f3a8bd782@redhat.com>

Hi, Eric

On 2019/11/20 下午6:18, Auger Eric 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.
>
>
vSVA feature is also very important to us, it will be great if vSVA can 
be supported in guest world.

We just submitted uacce for accelerator, which will be supporting SVA on 
host, thanks to Jean's effort.

https://lkml.org/lkml/2020/2/11/54


However, supporting vSVA in guest is also a key component for accelerator.

Looking forward this going to be happen.


Any respin, I will be very happy to test.


Thanks





  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
2020-03-03 12:57     ` zhangfei [this message]
2020-03-03 13:14       ` Auger Eric

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