| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20241120145345.GA811296@nvidia.com>
Date: Wed, 20 Nov 2024 10:53:45 -0400
From: Jason Gunthorpe <jgg@...dia.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: iommu@...ts.linux.dev, kvm@...r.kernel.org,
linux-kernel@...r.kernel.org, Kevin Tian <kevin.tian@...el.com>
Subject: [GIT PULL] Please pull IOMMUFD subsystem changes
Hi Linus,
This is a bigger PR that principally includes ARM SMMUv3 support for
nested translation. There are still additional series needed to solve
problems with IRQs, but this is the iommufd side of the work.
For those following, these series are still progressing:
- Draft AMD IOMMU nested translation:
https://lore.kernel.org/linux-iommu/20240112000646.98001-1-suravee.suthikulpanit@amd.com
(and many other AMD patches to prepare for this)
- Draft vBTM support for SMMUv3:
https://lore.kernel.org/linux-iommu/20240208151837.35068-1-shameerali.kolothum.thodi@huawei.com/
- Draft RISCV nesting support:
https://lore.kernel.org/all/20240507142600.23844-1-zong.li@sifive.com/
- Grace command queue passthrough iommufd support:
https://lore.kernel.org/all/cover.1712978212.git.nicolinc@nvidia.com/
Patches for PASID support in iommufd & vfio:
https://lore.kernel.org/r/20241104132513.15890-1-yi.l.liu@intel.com
https://lore.kernel.org/r/20241108121742.18889-1-yi.l.liu@intel.com
(Several precursor series were merged this cycle so I hope this
to go next cycle)
A lot of the iommufd support has now been merged to qemu, with more
progressing.
This has a shared branch Will created for some of the SMMUv3 code.
I have two patches renaming a function that I would like to get merged
in this window as well to simplify next cycle. They need both iommufd
and iommu trees to be merged together so I think there will be another
tiny pull request.
Thanks,
Jason
The following changes since commit 8e929cb546ee42c9a61d24fae60605e9e3192354:
Linux 6.12-rc3 (2024-10-13 14:33:32 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd.git tags/for-linus-iommufd
for you to fetch changes up to 6d026e6d48cd2a95407c8fdd8d6187b871401c23:
iommu/arm-smmu-v3: Import IOMMUFD module namespace (2024-11-14 21:07:15 -0400)
----------------------------------------------------------------
iommufd 6.13 merge window pull
Several new features and uAPI for iommufd:
- IOMMU_IOAS_MAP_FILE allows passing in a file descriptor as the backing
memory for an iommu mapping. To date VFIO/iommufd have used VMA's and
pin_user_pages(), this now allows using memfds and memfd_pin_folios().
Notably this creates a pure folio path from the memfd to the iommu page
table where memory is never broken down to PAGE_SIZE.
- IOMMU_IOAS_CHANGE_PROCESS moves the pinned page accounting between two
processes. Combined with the above this allows iommufd to support a VMM
re-start using exec() where something like qemu would exec() a new
version of itself and fd pass the memfds/iommufd/etc to the new
process. The memfd allows DMA access to the memory to continue while
the new process is getting setup, and the CHANGE_PROCESS updates all
the accounting.
- Support for fault reporting to userspace on non-PRI HW, such as ARM
stall-mode embedded devices.
- IOMMU_VIOMMU_ALLOC introduces the concept of a HW/driver backed virtual
iommu. This will be used by VMMs to access hardware features that are
contained with in a VM. The first use is to inform the kernel of the
virtual SID to physical SID mapping when issuing SID based invalidation
on ARM. Further uses will tie HW features that are directly accessed by
the VM, such as invalidation queue assignment and others.
- IOMMU_VDEVICE_ALLOC informs the kernel about the mapping of virtual
device to physical device within a VIOMMU. Minimially this is used to
translate VM issued cache invalidation commands from virtual to physical
device IDs.
- Enhancements to IOMMU_HWPT_INVALIDATE and IOMMU_HWPT_ALLOC to work with
the VIOMMU
- ARM SMMuv3 support for nested translation. Using the VIOMMU and VDEVICE
the driver can model this HW's behavior for nested translation. This
includes a shared branch from Will.
----------------------------------------------------------------
Jason Gunthorpe (9):
vfio: Remove VFIO_TYPE1_NESTING_IOMMU
iommu/arm-smmu-v3: Report IOMMU_CAP_ENFORCE_CACHE_COHERENCY for CANWBS
iommu/arm-smmu-v3: Implement IOMMU_HWPT_ALLOC_NEST_PARENT
iommu/arm-smmu-v3: Expose the arm_smmu_attach interface
iommu: Add iommu_copy_struct_from_full_user_array helper
Merge branch 'iommufd/arm-smmuv3-nested' of iommu/linux into iommufd for-next
iommu/arm-smmu-v3: Support IOMMU_DOMAIN_NESTED
iommu/arm-smmu-v3: Use S2FWB for NESTED domains
iommu/arm-smmu-v3: Allow ATS for IOMMU_DOMAIN_NESTED
Nathan Chancellor (1):
iommu/arm-smmu-v3: Import IOMMUFD module namespace
Nicolin Chen (28):
Documentation: userspace-api: iommufd: Update HWPT_PAGING and HWPT_NESTED
ACPICA: IORT: Update for revision E.f
ACPI/IORT: Support CANWBS memory access flag
iommu/arm-smmu-v3: Support IOMMU_GET_HW_INFO via struct arm_smmu_hw_info
iommufd: Move struct iommufd_object to public iommufd header
iommufd: Move _iommufd_object_alloc helper to a sharable file
iommufd: Introduce IOMMUFD_OBJ_VIOMMU and its related struct
iommufd: Verify object in iommufd_object_finalize/abort()
iommufd/viommu: Add IOMMU_VIOMMU_ALLOC ioctl
iommufd: Add alloc_domain_nested op to iommufd_viommu_ops
iommufd: Allow pt_id to carry viommu_id for IOMMU_HWPT_ALLOC
iommufd/selftest: Add container_of helpers
iommufd/selftest: Prepare for mock_viommu_alloc_domain_nested()
iommufd/selftest: Add refcount to mock_iommu_device
iommufd/selftest: Add IOMMU_VIOMMU_TYPE_SELFTEST
iommufd/selftest: Add IOMMU_VIOMMU_ALLOC test coverage
Documentation: userspace-api: iommufd: Update vIOMMU
iommufd/viommu: Add IOMMUFD_OBJ_VDEVICE and IOMMU_VDEVICE_ALLOC ioctl
iommufd/selftest: Add IOMMU_VDEVICE_ALLOC test coverage
iommu/viommu: Add cache_invalidate to iommufd_viommu_ops
iommufd: Allow hwpt_id to carry viommu_id for IOMMU_HWPT_INVALIDATE
iommufd/viommu: Add iommufd_viommu_find_dev helper
iommufd/selftest: Add mock_viommu_cache_invalidate
iommufd/selftest: Add IOMMU_TEST_OP_DEV_CHECK_CACHE test command
iommufd/selftest: Add vIOMMU coverage for IOMMU_HWPT_INVALIDATE ioctl
Documentation: userspace-api: iommufd: Update vDEVICE
iommu/arm-smmu-v3: Support IOMMU_VIOMMU_ALLOC
iommu/arm-smmu-v3: Support IOMMU_HWPT_INVALIDATE using a VIOMMU object
Steve Sistare (13):
mm/gup: Add folio_add_pins()
iommufd: Rename uptr in iopt_alloc_iova()
iommufd: Generalize iopt_pages address
iommufd: pfn_reader local variables
iommufd: Folio subroutines
iommufd: pfn_reader for file mappings
iommufd: Add IOMMU_IOAS_MAP_FILE
iommufd: File mappings for mdev
iommufd: Selftest coverage for IOMMU_IOAS_MAP_FILE
iommufd: Export do_update_pinned
iommufd: Lock all IOAS objects
iommufd: Add IOMMU_IOAS_CHANGE_PROCESS
iommufd: IOMMU_IOAS_CHANGE_PROCESS selftest
Zhangfei Gao (1):
iommufd: Allow fault reporting for non-PRI PCI devices
Documentation/userspace-api/iommufd.rst | 226 ++++++--
drivers/acpi/arm64/iort.c | 13 +
drivers/iommu/Kconfig | 9 +
drivers/iommu/arm/arm-smmu-v3/Makefile | 1 +
.../iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c | 401 ++++++++++++++
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 139 +++--
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 92 +++-
drivers/iommu/arm/arm-smmu/arm-smmu.c | 16 -
drivers/iommu/io-pgtable-arm.c | 27 +-
drivers/iommu/iommu.c | 10 -
drivers/iommu/iommufd/Kconfig | 4 +
drivers/iommu/iommufd/Makefile | 6 +-
drivers/iommu/iommufd/driver.c | 53 ++
drivers/iommu/iommufd/fault.c | 9 +-
drivers/iommu/iommufd/hw_pagetable.c | 113 +++-
drivers/iommu/iommufd/io_pagetable.c | 105 +++-
drivers/iommu/iommufd/io_pagetable.h | 26 +-
drivers/iommu/iommufd/ioas.c | 259 +++++++++
drivers/iommu/iommufd/iommufd_private.h | 58 +-
drivers/iommu/iommufd/iommufd_test.h | 32 ++
drivers/iommu/iommufd/main.c | 65 +--
drivers/iommu/iommufd/pages.c | 319 ++++++++---
drivers/iommu/iommufd/selftest.c | 364 ++++++++++---
drivers/iommu/iommufd/vfio_compat.c | 7 +-
drivers/iommu/iommufd/viommu.c | 157 ++++++
drivers/vfio/vfio_iommu_type1.c | 12 +-
include/acpi/actbl2.h | 3 +-
include/linux/io-pgtable.h | 2 +
include/linux/iommu.h | 67 ++-
include/linux/iommufd.h | 108 ++++
include/linux/mm.h | 1 +
include/uapi/linux/iommufd.h | 216 +++++++-
include/uapi/linux/vfio.h | 2 +-
mm/gup.c | 24 +
tools/testing/selftests/iommu/Makefile | 1 +
tools/testing/selftests/iommu/iommufd.c | 606 ++++++++++++++++++++-
tools/testing/selftests/iommu/iommufd_fail_nth.c | 54 ++
tools/testing/selftests/iommu/iommufd_utils.h | 174 ++++++
38 files changed, 3354 insertions(+), 427 deletions(-)
create mode 100644 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c
create mode 100644 drivers/iommu/iommufd/driver.c
create mode 100644 drivers/iommu/iommufd/viommu.c
Download attachment "signature.asc" of type "application/pgp-signature" (229 bytes)
Powered by blists - more mailing lists