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13a750180f
linux/drivers/iommu
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Nicolin Chen 13a750180f iommufd: Allow pt_id to carry viommu_id for IOMMU_HWPT_ALLOC 
Now a vIOMMU holds a shareable nesting parent HWPT. So, it can act like
that nesting parent HWPT to allocate a nested HWPT.

Support that in the IOMMU_HWPT_ALLOC ioctl handler, and update its kdoc.

Also, add an iommufd_viommu_alloc_hwpt_nested helper to allocate a nested
HWPT for a vIOMMU object. Since a vIOMMU object holds the parent hwpt's
refcount already, increase the refcount of the vIOMMU only.

Link: https://patch.msgid.link/r/a0f24f32bfada8b448d17587adcaedeeb50a67ed.1730836219.git.nicolinc@nvidia.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2024-11-12 11:46:18 -04:00
..
amd Merge branches 'fixes', 'arm/smmu', 'intel/vt-d', 'amd/amd-vi' and 'core' into next 2024-09-13 12:53:05 +02:00
arm Merge branches 'fixes', 'arm/smmu', 'intel/vt-d', 'amd/amd-vi' and 'core' into next 2024-09-13 12:53:05 +02:00
intel dma-mapping updates for linux 6.12 2024-09-19 11:12:49 +02:00
iommufd iommufd: Allow pt_id to carry viommu_id for IOMMU_HWPT_ALLOC 2024-11-12 11:46:18 -04:00
apple-dart.c iommu: constify of_phandle_args in xlate 2024-03-01 13:46:57 +01:00
dma-iommu.c dma-mapping: fix vmap and mmap of noncontiougs allocations 2024-09-22 18:47:51 +02:00
dma-iommu.h iommu/dma: Centralise iommu_setup_dma_ops() 2024-04-26 12:07:26 +02:00
exynos-iommu.c iommu/exynos: use page allocation function provided by iommu-pages.h 2024-04-15 14:31:45 +02:00
fsl_pamu_domain.c iommu: Use of_property_present() 2024-09-04 11:31:01 +02:00
fsl_pamu_domain.h iommu/fsl_pamu: remove the snoop_id field 2021-04-07 10:56:52 +02:00
fsl_pamu.c iommu/fsl: fix all kernel-doc warnings in fsl_pamu.c 2023-03-22 14:50:15 +01:00
fsl_pamu.h iommu/fsl_pamu: hardcode the window address and size in pamu_config_ppaace 2021-04-07 10:56:52 +02:00
hyperv-iommu.c x86/vector: Rename send_cleanup_vector() to vector_schedule_cleanup() 2023-08-06 14:15:09 +02:00
io-pgfault.c iommu: Handle iommu faults for a bad iopf setup 2024-08-23 11:16:39 +02:00
io-pgtable-arm-v7s.c iommu: Do not return 0 from map_pages if it doesn't do anything 2024-08-26 09:16:13 +02:00
io-pgtable-arm.c Merge branches 'fixes', 'arm/smmu', 'intel/vt-d', 'amd/amd-vi' and 'core' into next 2024-09-13 12:53:05 +02:00
io-pgtable-arm.h iommu/io-pgtable-arm: Move some definitions to a header 2020-09-28 23:48:06 +01:00
io-pgtable-dart.c iommu: Do not return 0 from map_pages if it doesn't do anything 2024-08-26 09:16:13 +02:00
io-pgtable.c iommu: Allow passing custom allocators to pgtable drivers 2023-11-27 11:10:12 +01:00
iommu-debugfs.c iommu: Fix IOMMU debugfs fallout 2019-02-26 11:15:58 +01:00
iommu-pages.h iommu: account IOMMU allocated memory 2024-04-15 14:31:48 +02:00
iommu-priv.h Merge branch 'iommu/iommufd/attach-handles' into iommu/next 2024-07-12 16:57:42 +01:00
iommu-sva.c Merge branch 'iommu/iommufd/attach-handles' into iommu/next 2024-07-12 16:57:42 +01:00
iommu-sysfs.c iommu: Do not export iommu_device_link/unlink() 2023-07-14 16:14:15 +02:00
iommu-traces.c iommu: Remove detach_dev callback 2023-01-13 16:39:18 +01:00
iommu.c iommu: Set iommu_attach_handle->domain in core 2024-09-11 20:14:07 -03:00
iova.c iommu/iova: Add missing MODULE_DESCRIPTION() macro 2024-06-14 16:51:10 +02:00
ipmmu-vmsa.c ARM: 9417/1: dma-mapping: Pass device to arm_iommu_create_mapping() 2024-09-04 15:02:07 +01:00
irq_remapping.c IOMMU Updates for Linux v6.10 2024-05-18 10:55:13 -07:00
irq_remapping.h iommu/vt-d: Allocate DMAR fault interrupts locally 2024-04-26 11:57:36 +02:00
Kconfig dma-mapping updates for linux 6.12 2024-09-19 11:12:49 +02:00
Makefile iommu: Separate SVA and IOPF 2024-02-16 15:19:29 +01:00
msm_iommu_hw-8xxx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
msm_iommu.c iommu: constify of_phandle_args in xlate 2024-03-01 13:46:57 +01:00
msm_iommu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
mtk_iommu_v1.c ARM: 9417/1: dma-mapping: Pass device to arm_iommu_create_mapping() 2024-09-04 15:02:07 +01:00
mtk_iommu.c iommu: mtk: fix module autoloading 2024-04-12 12:04:50 +02:00
of_iommu.c iommu: Use of_property_present() 2024-09-04 11:31:01 +02:00
omap-iommu-debug.c iommu/omap: Fix buffer overflow in debugfs 2022-09-07 10:42:28 +02:00
omap-iommu.c iommu: Mark dev_iommu_priv_set() with a lockdep 2023-12-12 10:18:49 +01:00
omap-iommu.h iommu/omap: Convert to generic_single_device_group() 2023-09-25 11:52:08 +02:00
omap-iopgtable.h iommu/omap: Fix -Woverflow warnings when compiling on 64-bit architectures 2020-03-04 16:24:46 +01:00
rockchip-iommu.c iommu/rockchip: use page allocation function provided by iommu-pages.h 2024-04-15 14:31:45 +02:00
s390-iommu.c iommu/dma: Centralise iommu_setup_dma_ops() 2024-04-26 12:07:26 +02:00
sprd-iommu.c iommu: sprd: Avoid NULL deref in sprd_iommu_hw_en 2024-07-23 17:09:28 +01:00
sun50i-iommu.c iommu: sun50i: Add H616 compatible string 2024-06-25 14:02:47 +02:00
tegra-smmu.c Merge branch 'iommu/fwspec-ops-removal' into iommu/next 2024-07-12 16:55:43 +01:00
virtio-iommu.c virtio: rename virtio_find_vqs_info() to virtio_find_vqs() 2024-07-17 05:20:58 -04:00