Hi Joerg, Just another gentle reminder. I think we have reached consensus in this common code. Jean and Eric can confirm.
Thanks, Jacob On Mon, 7 Oct 2019 12:39:12 -0700 Jacob Pan <jacob.jun....@linux.intel.com> wrote: > Hi Joerg and all, > > Just wondering if you have more comments on this series. > > Thanks, > > Jacob > > On Wed, 2 Oct 2019 12:42:39 -0700 > Jacob Pan <jacob.jun....@linux.intel.com> wrote: > > > This set consists of IOMMU APIs to support SVA in the guest, a.k.a > > nested SVA. As the complete SVA support is complex, we break down > > the enabling effort into three stages: > > 1. PCI device direct assignment > > 2. Fault handling, especially page request service support > > 3. Mediated device assignment > > > > Each stage includes common API and vendor specific IOMMU driver > > changes. This series is the common uAPI for stage #1. It is intended > > to build consensus on the interface which all vendors reply on. > > > > This series is extracted from the complete stage1 set which includes > > VT-d code. https://lkml.org/lkml/2019/8/15/951 > > > > Changes: > > - Use spinlock instead of mutex to protect ioasid custom > > allocators. This is to support callers in atomic context > > - Added more padding to guest PASID bind data for future > > extensions, suggested by Joerg. > > After much thinking, I did not do name change from PASID to IOASID > > in the uAPI, considering we have been using PASID in the rest of > > uAPIs. IOASID will remain used within the kernel. > > > > For more discussions lead to this series, checkout LPC 2019 > > VFIO/IOMMU/PCI microconference materials. > > https://linuxplumbersconf.org/event/4/sessions/66/#20190909 > > > > > > Change log: > > v4: - minor patch regroup and fixes based on review from Jean > > v3: - include errno.h in ioasid.h to fix compile error > > - rebased to v5.4-rc1, no change > > > > v2: > > - Addressed review comments by Jean on IOASID custom > > allocators, locking fix, misc control flow fix. > > - Fixed a compile error with missing header errno.h > > - Updated Jean-Philiippe's new email and updateded > > reviewed-by tag > > > > Jacob Pan (2): > > iommu/ioasid: Add custom allocators > > iommu: Introduce guest PASID bind function > > > > Jean-Philippe Brucker (1): > > iommu: Add I/O ASID allocator > > > > Yi L Liu (1): > > iommu: Introduce cache_invalidate API > > > > drivers/iommu/Kconfig | 4 + > > drivers/iommu/Makefile | 1 + > > drivers/iommu/ioasid.c | 422 > > +++++++++++++++++++++++++++++++++++++++++++++ > > drivers/iommu/iommu.c | 30 ++++ include/linux/ioasid.h | > > 76 ++++++++ include/linux/iommu.h | 36 ++++ > > include/uapi/linux/iommu.h | 169 ++++++++++++++++++ > > 7 files changed, 738 insertions(+) > > create mode 100644 drivers/iommu/ioasid.c > > create mode 100644 include/linux/ioasid.h > > > > [Jacob Pan] [Jacob Pan] _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
