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@xxxxxxxxxxx> > 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 >
