From: "joro@8bytes.org" <joro@8bytes.org> To: Jason Gunthorpe <jgg@nvidia.com> Cc: "Tian, Kevin" <kevin.tian@intel.com>, Jason Wang <jasowang@redhat.com>, "Liu, Yi L" <yi.l.liu@intel.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>, "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> Subject: Re: (proposal) RE: [PATCH v7 00/16] vfio: expose virtual Shared Virtual Addressing to VMs Date: Tue, 3 Nov 2020 15:35:32 +0100 [thread overview] Message-ID: <20201103143532.GM22888@8bytes.org> (raw) In-Reply-To: <20201103140642.GQ2620339@nvidia.com> On Tue, Nov 03, 2020 at 10:06:42AM -0400, Jason Gunthorpe wrote: > The point is that other places beyond VFIO need this Which and why? > Sure, but sometimes it is necessary, and in those cases the answer > can't be "rewrite a SVA driver to use vfio" This is getting to abstract. Can you come up with an example where handling this in VFIO or an endpoint device kernel driver does not work? Regards, Joerg
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From: "joro@8bytes.org" <joro@8bytes.org> To: Jason Gunthorpe <jgg@nvidia.com> Cc: "jean-philippe@linaro.org" <jean-philippe@linaro.org>, "Tian, Kevin" <kevin.tian@intel.com>, "Raj, Ashok" <ashok.raj@intel.com>, "kvm@vger.kernel.org" <kvm@vger.kernel.org>, "iommu@lists.linux-foundation.org" <iommu@lists.linux-foundation.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>, "Wu, Hao" <hao.wu@intel.com>, "Tian, Jun J" <jun.j.tian@intel.com> Subject: Re: (proposal) RE: [PATCH v7 00/16] vfio: expose virtual Shared Virtual Addressing to VMs Date: Tue, 3 Nov 2020 15:35:32 +0100 [thread overview] Message-ID: <20201103143532.GM22888@8bytes.org> (raw) In-Reply-To: <20201103140642.GQ2620339@nvidia.com> On Tue, Nov 03, 2020 at 10:06:42AM -0400, Jason Gunthorpe wrote: > The point is that other places beyond VFIO need this Which and why? > Sure, but sometimes it is necessary, and in those cases the answer > can't be "rewrite a SVA driver to use vfio" This is getting to abstract. Can you come up with an example where handling this in VFIO or an endpoint device kernel driver does not work? Regards, Joerg _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
next prev parent reply other threads:[~2020-11-03 14:35 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 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 [this message] 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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