Revision tags: v6.6.25, v6.6.24, v6.6.23, v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8, v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2, v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3, v6.5.2, v6.1.51, v6.5.1, v6.1.50, v6.5, v6.1.49, v6.1.48, v6.1.46, v6.1.45, v6.1.44, v6.1.43, v6.1.42, v6.1.41, v6.1.40, v6.1.39 |
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c1cce6d0 |
| 18-Jul-2023 |
Yi Liu <yi.l.liu@intel.com> |
vfio: Compile vfio_group infrastructure optionally
vfio_group is not needed for vfio device cdev, so with vfio device cdev introduced, the vfio_group infrastructures can be compiled out if only cdev
vfio: Compile vfio_group infrastructure optionally
vfio_group is not needed for vfio device cdev, so with vfio device cdev introduced, the vfio_group infrastructures can be compiled out if only cdev is needed.
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Tested-by: Nicolin Chen <nicolinc@nvidia.com> Tested-by: Matthew Rosato <mjrosato@linux.ibm.com> Tested-by: Yanting Jiang <yanting.jiang@intel.com> Tested-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> Tested-by: Terrence Xu <terrence.xu@intel.com> Tested-by: Zhenzhong Duan <zhenzhong.duan@intel.com> Signed-off-by: Yi Liu <yi.l.liu@intel.com> Link: https://lore.kernel.org/r/20230718135551.6592-26-yi.l.liu@intel.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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Revision tags: v6.1.38, v6.1.37, v6.1.36, v6.4, v6.1.35, v6.1.34, v6.1.33, v6.1.32, v6.1.31, v6.1.30, v6.1.29, v6.1.28, v6.1.27, v6.1.26, v6.3, v6.1.25, v6.1.24, v6.1.23, v6.1.22, v6.1.21, v6.1.20, v6.1.19, v6.1.18, v6.1.17, v6.1.16, v6.1.15, v6.1.14, v6.1.13, v6.2, v6.1.12, v6.1.11, v6.1.10, v6.1.9, v6.1.8 |
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c9a397ce |
| 18-Jan-2023 |
Jason Gunthorpe <jgg@nvidia.com> |
vfio: Support VFIO_NOIOMMU with iommufd
Add a small amount of emulation to vfio_compat to accept the SET_IOMMU to VFIO_NOIOMMU_IOMMU and have vfio just ignore iommufd if it is working on a no-iommu
vfio: Support VFIO_NOIOMMU with iommufd
Add a small amount of emulation to vfio_compat to accept the SET_IOMMU to VFIO_NOIOMMU_IOMMU and have vfio just ignore iommufd if it is working on a no-iommu enabled device.
Move the enable_unsafe_noiommu_mode module out of container.c into vfio_main.c so that it is always available even if VFIO_CONTAINER=n.
This passes Alex's mini-test:
https://github.com/awilliam/tests/blob/master/vfio-noiommu-pci-device-open.c
Link: https://lore.kernel.org/r/0-v3-480cd64a16f7+1ad0-iommufd_noiommu_jgg@nvidia.com Reviewed-by: Kevin Tian <kevin.tian@intel.com> Acked-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Revision tags: v6.1.7, v6.1.6, v6.1.5, v6.0.19, v6.0.18, v6.1.4, v6.1.3, v6.0.17, v6.1.2, v6.0.16, v6.1.1, v6.0.15, v6.0.14, v6.0.13, v6.1, v6.0.12, v6.0.11 |
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01f70cbb |
| 29-Nov-2022 |
Jason Gunthorpe <jgg@nvidia.com> |
iommufd: Allow iommufd to supply /dev/vfio/vfio
If the VFIO container is compiled out, give a kconfig option for iommufd to provide the miscdev node with the same name and permissions as vfio uses.
iommufd: Allow iommufd to supply /dev/vfio/vfio
If the VFIO container is compiled out, give a kconfig option for iommufd to provide the miscdev node with the same name and permissions as vfio uses.
The compatibility node supports the same ioctls as VFIO and automatically enables the VFIO compatible pinned page accounting mode.
Link: https://lore.kernel.org/r/10-v4-42cd2eb0e3eb+335a-vfio_iommufd_jgg@nvidia.com Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Yi Liu <yi.l.liu@intel.com> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Tested-by: Alex Williamson <alex.williamson@redhat.com> Tested-by: Nicolin Chen <nicolinc@nvidia.com> Tested-by: Yi Liu <yi.l.liu@intel.com> Tested-by: Lixiao Yang <lixiao.yang@intel.com> Tested-by: Matthew Rosato <mjrosato@linux.ibm.com> Tested-by: Yu He <yu.he@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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f4b20bb3 |
| 29-Nov-2022 |
Jason Gunthorpe <jgg@nvidia.com> |
iommufd: Add kernel support for testing iommufd
Provide a mock kernel module for the iommu_domain that allows it to run without any HW and the mocking provides a way to directly validate that the PF
iommufd: Add kernel support for testing iommufd
Provide a mock kernel module for the iommu_domain that allows it to run without any HW and the mocking provides a way to directly validate that the PFNs loaded into the iommu_domain are correct. This exposes the access kAPI toward userspace to allow userspace to explore the functionality of pages.c and io_pagetable.c
The mock also simulates the rare case of PAGE_SIZE > iommu page size as the mock will operate at a 2K iommu page size. This allows exercising all of the calculations to support this mismatch.
This is also intended to support syzkaller exploring the same space.
However, it is an unusually invasive config option to enable all of this. The config option should not be enabled in a production kernel.
Link: https://lore.kernel.org/r/16-v6-a196d26f289e+11787-iommufd_jgg@nvidia.com Tested-by: Matthew Rosato <mjrosato@linux.ibm.com> # s390 Tested-by: Eric Auger <eric.auger@redhat.com> # aarch64 Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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2ff4bed7 |
| 29-Nov-2022 |
Jason Gunthorpe <jgg@nvidia.com> |
iommufd: File descriptor, context, kconfig and makefiles
This is the basic infrastructure of a new miscdevice to hold the iommufd IOCTL API.
It provides: - A miscdevice to create file descriptors
iommufd: File descriptor, context, kconfig and makefiles
This is the basic infrastructure of a new miscdevice to hold the iommufd IOCTL API.
It provides: - A miscdevice to create file descriptors to run the IOCTL interface over
- A table based ioctl dispatch and centralized extendable pre-validation step
- An xarray mapping userspace ID's to kernel objects. The design has multiple inter-related objects held within in a single IOMMUFD fd
- A simple usage count to build a graph of object relations and protect against hostile userspace racing ioctls
The only IOCTL provided in this patch is the generic 'destroy any object by handle' operation.
Link: https://lore.kernel.org/r/6-v6-a196d26f289e+11787-iommufd_jgg@nvidia.com Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Tested-by: Nicolin Chen <nicolinc@nvidia.com> Tested-by: Yi Liu <yi.l.liu@intel.com> Tested-by: Lixiao Yang <lixiao.yang@intel.com> Tested-by: Matthew Rosato <mjrosato@linux.ibm.com> Signed-off-by: Yi Liu <yi.l.liu@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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