Hi Jean, Just wondering if you have more comments on ioasid custom allocator, v3 is largely the same as v2 other than shuffling header within the set.
Thanks, Jacob On Tue, 1 Oct 2019 16:33:21 -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: > 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 | 432 > +++++++++++++++++++++++++++++++++++++++++++++ > drivers/iommu/iommu.c | 30 ++++ include/linux/ioasid.h | > 76 ++++++++ include/linux/iommu.h | 36 ++++ > include/uapi/linux/iommu.h | 169 ++++++++++++++++++ > 7 files changed, 748 insertions(+) > create mode 100644 drivers/iommu/ioasid.c > create mode 100644 include/linux/ioasid.h > [Jacob Pan] _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
