From: "Liu, Yi L" <yi.l.liu@intel.com> To: Jason Gunthorpe <jgg@nvidia.com> Cc: "Tian, Kevin" <kevin.tian@intel.com>, Jason Wang <jasowang@redhat.com>, "alex.williamson@redhat.com" <alex.williamson@redhat.com>, "eric.auger@redhat.com" <eric.auger@redhat.com>, "baolu.lu@linux.intel.com" <baolu.lu@linux.intel.com>, "joro@8bytes.org" <joro@8bytes.org>, "jacob.jun.pan@linux.intel.com" <jacob.jun.pan@linux.intel.com>, "Raj, Ashok" <ashok.raj@intel.com>, "Tian, Jun J" <jun.j.tian@intel.com>, "Sun, Yi Y" <yi.y.sun@intel.com>, "jean-philippe@linaro.org" <jean-philippe@linaro.org>, "peterx@redhat.com" <peterx@redhat.com>, "Wu, Hao" <hao.wu@intel.com>, "stefanha@gmail.com" <stefanha@gmail.com>, "iommu@lists.linux-foundation.org" <iommu@lists.linux-foundation.org>, "kvm@vger.kernel.org" <kvm@vger.kernel.org>, "Michael S. Tsirkin" <mst@redhat.com>, "Zhu, Lingshan" <lingshan.zhu@intel.com> Subject: RE: (proposal) RE: [PATCH v7 00/16] vfio: expose virtual Shared Virtual Addressing to VMs Date: Tue, 20 Oct 2020 14:19:38 +0000 [thread overview] Message-ID: <DM5PR11MB1435CCC75952FA94EC050CD7C31F0@DM5PR11MB1435.namprd11.prod.outlook.com> (raw) In-Reply-To: <20201020140217.GI6219@nvidia.com> > From: Jason Gunthorpe <jgg@nvidia.com> > Sent: Tuesday, October 20, 2020 10:02 PM [...] > > > Whoever provides the vIOMMU emulation and relays the page fault to the > guest > > > has to translate the RID - > > > > that's the point. But the device info (especially the sub-device info) is > > within the passthru framework (e.g. VFIO). So page fault reporting needs > > to go through passthru framework. > > > > > what does that have to do with VFIO? > > > > > > How will VPDA provide the vIOMMU emulation? > > > > a pardon here. I believe vIOMMU emulation should be based on IOMMU > vendor > > specification, right? you may correct me if I'm missing anything. > > I'm asking how will VDPA translate the RID when VDPA triggers a page > fault that has to be relayed to the guest. VDPA also has virtual PCI > devices it creates. I've got a question. Does vDPA work with vIOMMU so far? e.g. Intel vIOMMU or other type vIOMMU. Regards, Yi Liu
WARNING: multiple messages have this Message-ID (diff)
From: "Liu, Yi L" <yi.l.liu@intel.com> To: Jason Gunthorpe <jgg@nvidia.com> Cc: "Tian, Jun J" <jun.j.tian@intel.com>, "Tian, Kevin" <kevin.tian@intel.com>, "Raj, Ashok" <ashok.raj@intel.com>, "kvm@vger.kernel.org" <kvm@vger.kernel.org>, "jean-philippe@linaro.org" <jean-philippe@linaro.org>, "stefanha@gmail.com" <stefanha@gmail.com>, Jason Wang <jasowang@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, "Sun, Yi Y" <yi.y.sun@intel.com>, "alex.williamson@redhat.com" <alex.williamson@redhat.com>, "iommu@lists.linux-foundation.org" <iommu@lists.linux-foundation.org>, "Zhu, Lingshan" <lingshan.zhu@intel.com>, "Wu, Hao" <hao.wu@intel.com> Subject: RE: (proposal) RE: [PATCH v7 00/16] vfio: expose virtual Shared Virtual Addressing to VMs Date: Tue, 20 Oct 2020 14:19:38 +0000 [thread overview] Message-ID: <DM5PR11MB1435CCC75952FA94EC050CD7C31F0@DM5PR11MB1435.namprd11.prod.outlook.com> (raw) In-Reply-To: <20201020140217.GI6219@nvidia.com> > From: Jason Gunthorpe <jgg@nvidia.com> > Sent: Tuesday, October 20, 2020 10:02 PM [...] > > > Whoever provides the vIOMMU emulation and relays the page fault to the > guest > > > has to translate the RID - > > > > that's the point. But the device info (especially the sub-device info) is > > within the passthru framework (e.g. VFIO). So page fault reporting needs > > to go through passthru framework. > > > > > what does that have to do with VFIO? > > > > > > How will VPDA provide the vIOMMU emulation? > > > > a pardon here. I believe vIOMMU emulation should be based on IOMMU > vendor > > specification, right? you may correct me if I'm missing anything. > > I'm asking how will VDPA translate the RID when VDPA triggers a page > fault that has to be relayed to the guest. VDPA also has virtual PCI > devices it creates. I've got a question. Does vDPA work with vIOMMU so far? e.g. Intel vIOMMU or other type vIOMMU. Regards, Yi Liu _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
next prev parent reply other threads:[~2020-10-20 14:19 UTC|newest] Thread overview: 110+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-10-12 8:38 (proposal) RE: [PATCH v7 00/16] vfio: expose virtual Shared Virtual Addressing to VMs Tian, Kevin 2020-10-12 8:38 ` Tian, Kevin 2020-10-13 6:22 ` Jason Wang 2020-10-13 6:22 ` Jason Wang 2020-10-14 3:08 ` Tian, Kevin 2020-10-14 3:08 ` Tian, Kevin 2020-10-14 23:10 ` Alex Williamson 2020-10-14 23:10 ` Alex Williamson 2020-10-15 7:02 ` Jason Wang 2020-10-15 7:02 ` Jason Wang 2020-10-15 6:52 ` Jason Wang 2020-10-15 6:52 ` Jason Wang 2020-10-15 7:58 ` Tian, Kevin 2020-10-15 7:58 ` Tian, Kevin 2020-10-15 8:40 ` Jason Wang 2020-10-15 8:40 ` Jason Wang 2020-10-15 10:14 ` Liu, Yi L 2020-10-15 10:14 ` Liu, Yi L 2020-10-20 6:18 ` Jason Wang 2020-10-20 6:18 ` Jason Wang 2020-10-20 8:19 ` Liu, Yi L 2020-10-20 8:19 ` Liu, Yi L 2020-10-20 9:19 ` Jason Wang 2020-10-20 9:19 ` Jason Wang 2020-10-20 9:40 ` Liu, Yi L 2020-10-20 9:40 ` Liu, Yi L 2020-10-20 13:54 ` Jason Gunthorpe 2020-10-20 13:54 ` Jason Gunthorpe 2020-10-20 14:00 ` Liu, Yi L 2020-10-20 14:00 ` Liu, Yi L 2020-10-20 14:05 ` Jason Gunthorpe 2020-10-20 14:05 ` Jason Gunthorpe 2020-10-20 14:09 ` Liu, Yi L 2020-10-20 14:09 ` Liu, Yi L 2020-10-13 10:27 ` Jean-Philippe Brucker 2020-10-13 10:27 ` Jean-Philippe Brucker 2020-10-14 2:11 ` Tian, Kevin 2020-10-14 2:11 ` Tian, Kevin 2020-10-14 3:16 ` Tian, Kevin 2020-10-14 3:16 ` Tian, Kevin 2020-10-16 15:36 ` Jason Gunthorpe 2020-10-16 15:36 ` Jason Gunthorpe 2020-10-19 8:39 ` Liu, Yi L 2020-10-19 8:39 ` Liu, Yi L 2020-10-19 14:25 ` Jason Gunthorpe 2020-10-19 14:25 ` Jason Gunthorpe 2020-10-20 10:21 ` Liu, Yi L 2020-10-20 10:21 ` Liu, Yi L 2020-10-20 14:02 ` Jason Gunthorpe 2020-10-20 14:02 ` Jason Gunthorpe 2020-10-20 14:19 ` Liu, Yi L [this message] 2020-10-20 14:19 ` Liu, Yi L 2020-10-21 2:21 ` Jason Wang 2020-10-21 2:21 ` Jason Wang 2020-10-20 16:24 ` Raj, Ashok 2020-10-20 16:24 ` Raj, Ashok 2020-10-20 17:03 ` Jason Gunthorpe 2020-10-20 17:03 ` Jason Gunthorpe 2020-10-20 19:51 ` Raj, Ashok 2020-10-20 19:51 ` Raj, Ashok 2020-10-20 19:55 ` Jason Gunthorpe 2020-10-20 19:55 ` Jason Gunthorpe 2020-10-20 20:08 ` Raj, Ashok 2020-10-20 20:08 ` Raj, Ashok 2020-10-20 20:14 ` Jason Gunthorpe 2020-10-20 20:14 ` Jason Gunthorpe 2020-10-20 20:27 ` Raj, Ashok 2020-10-20 20:27 ` Raj, Ashok 2020-10-21 11:48 ` Jason Gunthorpe 2020-10-21 11:48 ` Jason Gunthorpe 2020-10-21 17:51 ` Raj, Ashok 2020-10-21 17:51 ` Raj, Ashok 2020-10-21 18:24 ` Jason Gunthorpe 2020-10-21 18:24 ` Jason Gunthorpe 2020-10-21 20:03 ` Raj, Ashok 2020-10-21 20:03 ` Raj, Ashok 2020-10-21 23:32 ` Jason Gunthorpe 2020-10-21 23:32 ` Jason Gunthorpe 2020-10-21 23:53 ` Raj, Ashok 2020-10-21 23:53 ` Raj, Ashok 2020-10-22 2:55 ` Jason Wang 2020-10-22 2:55 ` Jason Wang 2020-10-22 3:54 ` Liu, Yi L 2020-10-22 3:54 ` Liu, Yi L 2020-10-22 4:38 ` Jason Wang 2020-10-22 4:38 ` Jason Wang 2020-11-03 9:52 ` joro 2020-11-03 9:52 ` joro 2020-11-03 12:56 ` Jason Gunthorpe 2020-11-03 12:56 ` Jason Gunthorpe 2020-11-03 13:18 ` joro 2020-11-03 13:18 ` joro 2020-11-03 13:23 ` Jason Gunthorpe 2020-11-03 13:23 ` Jason Gunthorpe 2020-11-03 14:03 ` joro 2020-11-03 14:03 ` joro 2020-11-03 14:06 ` Jason Gunthorpe 2020-11-03 14:06 ` Jason Gunthorpe 2020-11-03 14:35 ` joro 2020-11-03 14:35 ` joro 2020-11-03 15:22 ` Jason Gunthorpe 2020-11-03 15:22 ` Jason Gunthorpe 2020-11-03 16:55 ` joro 2020-11-03 16:55 ` joro 2020-11-03 17:48 ` Jason Gunthorpe 2020-11-03 17:48 ` Jason Gunthorpe 2020-11-03 19:14 ` joro 2020-11-03 19:14 ` joro 2020-11-04 19:29 ` Jason Gunthorpe 2020-11-04 19:29 ` Jason Gunthorpe
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