| /linux-6.14.4/drivers/iommu/iommufd/ |
| D | viommu.c | 8 struct iommufd_viommu *viommu = in iommufd_viommu_destroy() local
11 if (viommu->ops && viommu->ops->destroy) in iommufd_viommu_destroy()
12 viommu->ops->destroy(viommu); in iommufd_viommu_destroy()
13 refcount_dec(&viommu->hwpt->common.obj.users); in iommufd_viommu_destroy()
14 xa_destroy(&viommu->vdevs); in iommufd_viommu_destroy()
21 struct iommufd_viommu *viommu; in iommufd_viommu_alloc_ioctl() local
50 viommu = ops->viommu_alloc(idev->dev, hwpt_paging->common.domain, in iommufd_viommu_alloc_ioctl()
52 if (IS_ERR(viommu)) { in iommufd_viommu_alloc_ioctl()
53 rc = PTR_ERR(viommu); in iommufd_viommu_alloc_ioctl()
57 xa_init(&viommu->vdevs); in iommufd_viommu_alloc_ioctl()
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| D | hw_pagetable.c | 60 if (hwpt_nested->viommu) in iommufd_hwpt_nested_destroy()
61 refcount_dec(&hwpt_nested->viommu->obj.users); in iommufd_hwpt_nested_destroy()
267 * iommufd_viommu_alloc_hwpt_nested() - Get a hwpt_nested for a vIOMMU
268 * @viommu: vIOMMU ojbect to associate the hwpt_nested/domain with
272 * Allocate a new IOMMU_DOMAIN_NESTED for a vIOMMU and return it as a NESTED
276 iommufd_viommu_alloc_hwpt_nested(struct iommufd_viommu *viommu, u32 flags, in iommufd_viommu_alloc_hwpt_nested() argument
287 if (!viommu->ops || !viommu->ops->alloc_domain_nested) in iommufd_viommu_alloc_hwpt_nested()
291 viommu->ictx, hwpt_nested, IOMMUFD_OBJ_HWPT_NESTED, common.obj); in iommufd_viommu_alloc_hwpt_nested()
296 hwpt_nested->viommu = viommu; in iommufd_viommu_alloc_hwpt_nested()
297 refcount_inc(&viommu->obj.users); in iommufd_viommu_alloc_hwpt_nested()
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| D | driver.c | 39 /* Caller should xa_lock(&viommu->vdevs) to protect the return value */
40 struct device *iommufd_viommu_find_dev(struct iommufd_viommu *viommu, in iommufd_viommu_find_dev() argument
45 lockdep_assert_held(&viommu->vdevs.xa_lock); in iommufd_viommu_find_dev()
47 vdev = xa_load(&viommu->vdevs, vdev_id); in iommufd_viommu_find_dev()
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| D | selftest.c | 153 static inline struct mock_viommu *to_mock_viommu(struct iommufd_viommu *viommu) in to_mock_viommu() argument
155 return container_of(viommu, struct mock_viommu, core); in to_mock_viommu()
570 static void mock_viommu_destroy(struct iommufd_viommu *viommu) in mock_viommu_destroy() argument
573 viommu->iommu_dev, struct mock_iommu_device, iommu_dev); in mock_viommu_destroy()
578 /* iommufd core frees mock_viommu and viommu */ in mock_viommu_destroy()
582 mock_viommu_alloc_domain_nested(struct iommufd_viommu *viommu, u32 flags, in mock_viommu_alloc_domain_nested() argument
585 struct mock_viommu *mock_viommu = to_mock_viommu(viommu); in mock_viommu_alloc_domain_nested()
599 static int mock_viommu_cache_invalidate(struct iommufd_viommu *viommu, in mock_viommu_cache_invalidate() argument
642 xa_lock(&viommu->vdevs); in mock_viommu_cache_invalidate()
643 dev = iommufd_viommu_find_dev(viommu, in mock_viommu_cache_invalidate()
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| D | Makefile | 11 viommu.o
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| D | iommufd_private.h | 295 struct iommufd_viommu *viommu; member
528 struct iommufd_viommu *viommu; member
530 u64 id; /* per-vIOMMU virtual ID */
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| D | iommufd_test.h | 201 * struct iommu_viommu_invalidate_selftest - Invalidation data for Mock VIOMMU
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| D | main.c | 312 struct iommu_viommu_alloc viommu; member
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| /linux-6.14.4/drivers/iommu/ |
| D | virtio-iommu.c | 64 struct viommu_dev *viommu; member
65 struct mutex mutex; /* protects viommu pointer */
78 struct viommu_dev *viommu; member
136 static off_t viommu_get_write_desc_offset(struct viommu_dev *viommu, in viommu_get_write_desc_offset() argument
143 return len - viommu->probe_size - tail_size; in viommu_get_write_desc_offset()
154 static int __viommu_sync_req(struct viommu_dev *viommu) in __viommu_sync_req() argument
159 struct virtqueue *vq = viommu->vqs[VIOMMU_REQUEST_VQ]; in __viommu_sync_req()
161 assert_spin_locked(&viommu->request_lock); in __viommu_sync_req()
165 while (!list_empty(&viommu->requests)) { in __viommu_sync_req()
187 static int viommu_sync_req(struct viommu_dev *viommu) in viommu_sync_req() argument
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| /linux-6.14.4/drivers/acpi/ |
| D | viot.c | 48 struct viot_iommu *viommu; member
77 static int __init viot_get_pci_iommu_fwnode(struct viot_iommu *viommu, in viot_get_pci_iommu_fwnode() argument
103 viommu->fwnode = dev_fwnode(&pdev->dev); in viot_get_pci_iommu_fwnode()
108 static int __init viot_get_mmio_iommu_fwnode(struct viot_iommu *viommu, in viot_get_mmio_iommu_fwnode() argument
123 viommu->fwnode = &adev->fwnode; in viot_get_mmio_iommu_fwnode()
130 struct viot_iommu *viommu; in viot_get_iommu() local
138 list_for_each_entry(viommu, &viot_iommus, list) in viot_get_iommu()
139 if (viommu->offset == offset) in viot_get_iommu()
140 return viommu; in viot_get_iommu()
145 viommu = kzalloc(sizeof(*viommu), GFP_KERNEL); in viot_get_iommu()
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| /linux-6.14.4/Documentation/userspace-api/ |
| D | iommufd.rst | 78 Such a vIOMMU object generally has the access to a nesting parent pagetable
79 to support some HW-accelerated virtualization features. So, a vIOMMU object
81 encapsulate that HWPT_PAGING object. Therefore, a vIOMMU object can be used
86 The name "vIOMMU" isn't necessarily identical to a virtualized IOMMU in a
90 vIOMMU objects created for individual slices of different physical IOMMUs.
91 In other words, a vIOMMU object is always a representation of one physical
96 backed by corresponding vIOMMU objects, in which case a guest OS would do
101 information or attributes (related to the vIOMMU) in a VM. An immediate vDATA
102 example can be the virtual ID of the device on a vIOMMU, which is a unique ID
103 that VMM assigns to the device for a translation channel/port of the vIOMMU,
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| /linux-6.14.4/include/linux/ |
| D | iommufd.h | 101 * struct iommufd_viommu_ops - vIOMMU specific operations
103 * of the vIOMMU will be free-ed by iommufd core after calling this op
104 * @alloc_domain_nested: Allocate a IOMMU_DOMAIN_NESTED on a vIOMMU that holds a
109 * @cache_invalidate: Flush hardware cache used by a vIOMMU. It can be used for
118 void (*destroy)(struct iommufd_viommu *viommu);
120 struct iommufd_viommu *viommu, u32 flags,
122 int (*cache_invalidate)(struct iommufd_viommu *viommu,
188 struct device *iommufd_viommu_find_dev(struct iommufd_viommu *viommu,
199 iommufd_viommu_find_dev(struct iommufd_viommu *viommu, unsigned long vdev_id) in iommufd_viommu_find_dev() argument
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| /linux-6.14.4/include/uapi/linux/ |
| D | iommufd.h | 470 * @pt_id: The IOAS or HWPT or vIOMMU to connect this HWPT to
489 * A user-managed nested HWPT will be created from a given vIOMMU (wrapping a
494 * via @dev_id and the vIOMMU via @pt_id must be associated to the same IOMMU
783 * Supported command list only when passing in a vIOMMU via @hwpt_id:
802 * @hwpt_id: ID of a nested HWPT or a vIOMMU, for cache invalidation
813 * Invalidate iommu cache for user-managed page table or vIOMMU. Modifications
816 * cache can be flushed if a vIOMMU is passed in via the @hwpt_id field.
956 * to the vIOMMU, such as:
978 * @viommu_id: vIOMMU ID to associate with the virtual device
979 * @dev_id: The physical device to allocate a virtual instance on the vIOMMU
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| /linux-6.14.4/Documentation/devicetree/bindings/virtio/ |
| D | mmio.yaml | 56 iommus = <&viommu 23>;
59 viommu: iommu@3100 {
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| /linux-6.14.4/drivers/iommu/arm/arm-smmu-v3/ |
| D | arm-smmu-v3-iommufd.c | 177 arm_vsmmu_alloc_domain_nested(struct iommufd_viommu *viommu, u32 flags, in arm_vsmmu_alloc_domain_nested() argument
180 struct arm_vsmmu *vsmmu = container_of(viommu, struct arm_vsmmu, core); in arm_vsmmu_alloc_domain_nested()
287 static int arm_vsmmu_cache_invalidate(struct iommufd_viommu *viommu, in arm_vsmmu_cache_invalidate() argument
290 struct arm_vsmmu *vsmmu = container_of(viommu, struct arm_vsmmu, core); in arm_vsmmu_cache_invalidate()
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| /linux-6.14.4/tools/testing/selftests/iommu/ |
| D | iommufd.c | 2644 unsigned int viommu; in FIXTURE_VARIANT() local
2654 if (variant->viommu) { in FIXTURE_SETUP()
2667 /* Allocate a vIOMMU taking refcount of the parent hwpt */ in FIXTURE_SETUP()
2687 .viommu = 0, in FIXTURE_VARIANT_ADD()
2692 .viommu = 1, in FIXTURE_VARIANT_ADD()
2716 /* Negative test -- unsupported viommu type */ in TEST_F()
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| D | iommufd_utils.h | 331 #define test_cmd_viommu_invalidate(viommu, reqs, lreq, nreqs) \ argument
334 _test_cmd_viommu_invalidate(self->fd, viommu, reqs, \
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| /linux-6.14.4/drivers/iommu/amd/ |
| D | iommu.c | 1666 * When NpCache is on, we infer that we run in a VM and use a vIOMMU. in amd_iommu_domain_flush_pages()
|