From: Jason Gunthorpe <jgg@nvidia.com> To: unlisted-recipients:; (no To-header on input) Cc: Anthony Krowiak <akrowiak@linux.ibm.com>, Alex Williamson <alex.williamson@redhat.com>, Bagas Sanjaya <bagasdotme@gmail.com>, Lu Baolu <baolu.lu@linux.intel.com>, Chaitanya Kulkarni <chaitanyak@nvidia.com>, Cornelia Huck <cohuck@redhat.com>, Jonathan Corbet <corbet@lwn.net>, Daniel Jordan <daniel.m.jordan@oracle.com>, David Gibson <david@gibson.dropbear.id.au>, Eric Auger <eric.auger@redhat.com>, Eric Farman <farman@linux.ibm.com>, iommu@lists.linux.dev, Jason Wang <jasowang@redhat.com>, Jean-Philippe Brucker <jean-philippe@linaro.org>, Jason Herne <jjherne@linux.ibm.com>, Joao Martins <joao.m.martins@oracle.com>, Kevin Tian <kevin.tian@intel.com>, kvm@vger.kernel.org, Lixiao Yang <lixiao.yang@intel.com>, Matthew Rosato <mjrosato@linux.ibm.com>, "Michael S. Tsirkin" <mst@redhat.com>, Nicolin Chen <nicolinc@nvidia.com>, Halil Pasic <pasic@linux.ibm.com>, Niklas Schnelle <schnelle@linux.ibm.com>, Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>, Yi Liu <yi.l.liu@intel.com>, Yu He <yu.he@intel.com>, Keqian Zhu <zhukeqian1@huawei.com> Subject: [PATCH v6 12/19] iommufd: Add a HW pagetable object Date: Tue, 29 Nov 2022 16:29:35 -0400 [thread overview] Message-ID: <12-v6-a196d26f289e+11787-iommufd_jgg@nvidia.com> (raw) In-Reply-To: <0-v6-a196d26f289e+11787-iommufd_jgg@nvidia.com> The hw_pagetable object exposes the internal struct iommu_domain's to userspace. An iommu_domain is required when any DMA device attaches to an IOAS to control the io page table through the iommu driver. For compatibility with VFIO the hw_pagetable is automatically created when a DMA device is attached to the IOAS. If a compatible iommu_domain already exists then the hw_pagetable associated with it is used for the attachment. In the initial series there is no iommufd uAPI for the hw_pagetable object. The next patch provides driver facing APIs for IO page table attachment that allows drivers to accept either an IOAS or a hw_pagetable ID and for the driver to return the hw_pagetable ID that was auto-selected from an IOAS. The expectation is the driver will provide uAPI through its own FD for attaching its device to iommufd. This allows userspace to learn the mapping of devices to iommu_domains and to override the automatic attachment. The future HW specific interface will allow userspace to create hw_pagetable objects using iommu_domains with IOMMU driver specific parameters. This infrastructure will allow linking those domains to IOAS's and devices. 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> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> --- drivers/iommu/iommufd/Makefile | 1 + drivers/iommu/iommufd/hw_pagetable.c | 57 +++++++++++++++++++++++++ drivers/iommu/iommufd/ioas.c | 3 ++ drivers/iommu/iommufd/iommufd_private.h | 33 ++++++++++++++ drivers/iommu/iommufd/main.c | 3 ++ 5 files changed, 97 insertions(+) create mode 100644 drivers/iommu/iommufd/hw_pagetable.c diff --git a/drivers/iommu/iommufd/Makefile b/drivers/iommu/iommufd/Makefile index 2b4f36f1b72f9d..e13e971aa28c60 100644 --- a/drivers/iommu/iommufd/Makefile +++ b/drivers/iommu/iommufd/Makefile @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only iommufd-y := \ + hw_pagetable.o \ io_pagetable.o \ ioas.o \ main.o \ diff --git a/drivers/iommu/iommufd/hw_pagetable.c b/drivers/iommu/iommufd/hw_pagetable.c new file mode 100644 index 00000000000000..43d473989a0667 --- /dev/null +++ b/drivers/iommu/iommufd/hw_pagetable.c @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2021-2022, NVIDIA CORPORATION & AFFILIATES + */ +#include <linux/iommu.h> + +#include "iommufd_private.h" + +void iommufd_hw_pagetable_destroy(struct iommufd_object *obj) +{ + struct iommufd_hw_pagetable *hwpt = + container_of(obj, struct iommufd_hw_pagetable, obj); + + WARN_ON(!list_empty(&hwpt->devices)); + + iommu_domain_free(hwpt->domain); + refcount_dec(&hwpt->ioas->obj.users); + mutex_destroy(&hwpt->devices_lock); +} + +/** + * iommufd_hw_pagetable_alloc() - Get an iommu_domain for a device + * @ictx: iommufd context + * @ioas: IOAS to associate the domain with + * @dev: Device to get an iommu_domain for + * + * Allocate a new iommu_domain and return it as a hw_pagetable. + */ +struct iommufd_hw_pagetable * +iommufd_hw_pagetable_alloc(struct iommufd_ctx *ictx, struct iommufd_ioas *ioas, + struct device *dev) +{ + struct iommufd_hw_pagetable *hwpt; + int rc; + + hwpt = iommufd_object_alloc(ictx, hwpt, IOMMUFD_OBJ_HW_PAGETABLE); + if (IS_ERR(hwpt)) + return hwpt; + + hwpt->domain = iommu_domain_alloc(dev->bus); + if (!hwpt->domain) { + rc = -ENOMEM; + goto out_abort; + } + + INIT_LIST_HEAD(&hwpt->devices); + INIT_LIST_HEAD(&hwpt->hwpt_item); + mutex_init(&hwpt->devices_lock); + /* Pairs with iommufd_hw_pagetable_destroy() */ + refcount_inc(&ioas->obj.users); + hwpt->ioas = ioas; + return hwpt; + +out_abort: + iommufd_object_abort(ictx, &hwpt->obj); + return ERR_PTR(rc); +} diff --git a/drivers/iommu/iommufd/ioas.c b/drivers/iommu/iommufd/ioas.c index 6ff97dafc89134..302779b33bd4a5 100644 --- a/drivers/iommu/iommufd/ioas.c +++ b/drivers/iommu/iommufd/ioas.c @@ -17,6 +17,7 @@ void iommufd_ioas_destroy(struct iommufd_object *obj) rc = iopt_unmap_all(&ioas->iopt, NULL); WARN_ON(rc && rc != -ENOENT); iopt_destroy_table(&ioas->iopt); + mutex_destroy(&ioas->mutex); } struct iommufd_ioas *iommufd_ioas_alloc(struct iommufd_ctx *ictx) @@ -28,6 +29,8 @@ struct iommufd_ioas *iommufd_ioas_alloc(struct iommufd_ctx *ictx) return ioas; iopt_init_table(&ioas->iopt); + INIT_LIST_HEAD(&ioas->hwpt_list); + mutex_init(&ioas->mutex); return ioas; } diff --git a/drivers/iommu/iommufd/iommufd_private.h b/drivers/iommu/iommufd/iommufd_private.h index 1a13c54a8def86..6b0448702a956d 100644 --- a/drivers/iommu/iommufd/iommufd_private.h +++ b/drivers/iommu/iommufd/iommufd_private.h @@ -103,6 +103,7 @@ static inline int iommufd_ucmd_respond(struct iommufd_ucmd *ucmd, enum iommufd_object_type { IOMMUFD_OBJ_NONE, IOMMUFD_OBJ_ANY = IOMMUFD_OBJ_NONE, + IOMMUFD_OBJ_HW_PAGETABLE, IOMMUFD_OBJ_IOAS, }; @@ -181,10 +182,20 @@ struct iommufd_object *_iommufd_object_alloc(struct iommufd_ctx *ictx, * io_pagetable object. It is a user controlled mapping of IOVA -> PFNs. The * mapping is copied into all of the associated domains and made available to * in-kernel users. + * + * Every iommu_domain that is created is wrapped in a iommufd_hw_pagetable + * object. When we go to attach a device to an IOAS we need to get an + * iommu_domain and wrapping iommufd_hw_pagetable for it. + * + * An iommu_domain & iommfd_hw_pagetable will be automatically selected + * for a device based on the hwpt_list. If no suitable iommu_domain + * is found a new iommu_domain will be created. */ struct iommufd_ioas { struct iommufd_object obj; struct io_pagetable iopt; + struct mutex mutex; + struct list_head hwpt_list; }; static inline struct iommufd_ioas *iommufd_get_ioas(struct iommufd_ucmd *ucmd, @@ -207,6 +218,28 @@ int iommufd_ioas_option(struct iommufd_ucmd *ucmd); int iommufd_option_rlimit_mode(struct iommu_option *cmd, struct iommufd_ctx *ictx); +/* + * A HW pagetable is called an iommu_domain inside the kernel. This user object + * allows directly creating and inspecting the domains. Domains that have kernel + * owned page tables will be associated with an iommufd_ioas that provides the + * IOVA to PFN map. + */ +struct iommufd_hw_pagetable { + struct iommufd_object obj; + struct iommufd_ioas *ioas; + struct iommu_domain *domain; + bool auto_domain : 1; + /* Head at iommufd_ioas::hwpt_list */ + struct list_head hwpt_item; + struct mutex devices_lock; + struct list_head devices; +}; + +struct iommufd_hw_pagetable * +iommufd_hw_pagetable_alloc(struct iommufd_ctx *ictx, struct iommufd_ioas *ioas, + struct device *dev); +void iommufd_hw_pagetable_destroy(struct iommufd_object *obj); + struct iommufd_access { unsigned long iova_alignment; u32 iopt_access_list_id; diff --git a/drivers/iommu/iommufd/main.c b/drivers/iommu/iommufd/main.c index 1c0a1f499378db..ac6580a7b70660 100644 --- a/drivers/iommu/iommufd/main.c +++ b/drivers/iommu/iommufd/main.c @@ -360,6 +360,9 @@ static const struct iommufd_object_ops iommufd_object_ops[] = { [IOMMUFD_OBJ_IOAS] = { .destroy = iommufd_ioas_destroy, }, + [IOMMUFD_OBJ_HW_PAGETABLE] = { + .destroy = iommufd_hw_pagetable_destroy, + }, }; static struct miscdevice iommu_misc_dev = { -- 2.38.1
WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe <jgg@nvidia.com> Cc: Anthony Krowiak <akrowiak@linux.ibm.com>, Alex Williamson <alex.williamson@redhat.com>, Bagas Sanjaya <bagasdotme@gmail.com>, Lu Baolu <baolu.lu@linux.intel.com>, Chaitanya Kulkarni <chaitanyak@nvidia.com>, Cornelia Huck <cohuck@redhat.com>, Jonathan Corbet <corbet@lwn.net>, Daniel Jordan <daniel.m.jordan@oracle.com>, David Gibson <david@gibson.dropbear.id.au>, Eric Auger <eric.auger@redhat.com>, Eric Farman <farman@linux.ibm.com>, iommu@lists.linux.dev, Jason Wang <jasowang@redhat.com>, Jean-Philippe Brucker <jean-philippe@linaro.org>, Jason Herne <jjherne@linux.ibm.com>, Joao Martins <joao.m.martins@oracle.com>, Kevin Tian <kevin.tian@intel.com>, kvm@vger.kernel.org, Lixiao Yang <lixiao.yang@intel.com>, Matthew Rosato <mjrosato@linux.ibm.com>, "Michael S. Tsirkin" <mst@redhat.com>, Nicolin Chen <nicolinc@nvidia.com>, Halil Pasic <pasic@linux.ibm.com>, Niklas Schnelle <schnelle@linux.ibm.com>, Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>, Yi Liu <yi.l.liu@intel.com>, Yu He <yu.he@intel.com>, Keqian Zhu <zhukeqian1@huawei.com> Subject: [PATCH v6 12/19] iommufd: Add a HW pagetable object Date: Tue, 29 Nov 2022 16:29:35 -0400 [thread overview] Message-ID: <12-v6-a196d26f289e+11787-iommufd_jgg@nvidia.com> (raw) In-Reply-To: <0-v6-a196d26f289e+11787-iommufd_jgg@nvidia.com> The hw_pagetable object exposes the internal struct iommu_domain's to userspace. An iommu_domain is required when any DMA device attaches to an IOAS to control the io page table through the iommu driver. For compatibility with VFIO the hw_pagetable is automatically created when a DMA device is attached to the IOAS. If a compatible iommu_domain already exists then the hw_pagetable associated with it is used for the attachment. In the initial series there is no iommufd uAPI for the hw_pagetable object. The next patch provides driver facing APIs for IO page table attachment that allows drivers to accept either an IOAS or a hw_pagetable ID and for the driver to return the hw_pagetable ID that was auto-selected from an IOAS. The expectation is the driver will provide uAPI through its own FD for attaching its device to iommufd. This allows userspace to learn the mapping of devices to iommu_domains and to override the automatic attachment. The future HW specific interface will allow userspace to create hw_pagetable objects using iommu_domains with IOMMU driver specific parameters. This infrastructure will allow linking those domains to IOAS's and devices. 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> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> --- drivers/iommu/iommufd/Makefile | 1 + drivers/iommu/iommufd/hw_pagetable.c | 57 +++++++++++++++++++++++++ drivers/iommu/iommufd/ioas.c | 3 ++ drivers/iommu/iommufd/iommufd_private.h | 33 ++++++++++++++ drivers/iommu/iommufd/main.c | 3 ++ 5 files changed, 97 insertions(+) create mode 100644 drivers/iommu/iommufd/hw_pagetable.c diff --git a/drivers/iommu/iommufd/Makefile b/drivers/iommu/iommufd/Makefile index 2b4f36f1b72f9d..e13e971aa28c60 100644 --- a/drivers/iommu/iommufd/Makefile +++ b/drivers/iommu/iommufd/Makefile @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only iommufd-y := \ + hw_pagetable.o \ io_pagetable.o \ ioas.o \ main.o \ diff --git a/drivers/iommu/iommufd/hw_pagetable.c b/drivers/iommu/iommufd/hw_pagetable.c new file mode 100644 index 00000000000000..43d473989a0667 --- /dev/null +++ b/drivers/iommu/iommufd/hw_pagetable.c @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2021-2022, NVIDIA CORPORATION & AFFILIATES + */ +#include <linux/iommu.h> + +#include "iommufd_private.h" + +void iommufd_hw_pagetable_destroy(struct iommufd_object *obj) +{ + struct iommufd_hw_pagetable *hwpt = + container_of(obj, struct iommufd_hw_pagetable, obj); + + WARN_ON(!list_empty(&hwpt->devices)); + + iommu_domain_free(hwpt->domain); + refcount_dec(&hwpt->ioas->obj.users); + mutex_destroy(&hwpt->devices_lock); +} + +/** + * iommufd_hw_pagetable_alloc() - Get an iommu_domain for a device + * @ictx: iommufd context + * @ioas: IOAS to associate the domain with + * @dev: Device to get an iommu_domain for + * + * Allocate a new iommu_domain and return it as a hw_pagetable. + */ +struct iommufd_hw_pagetable * +iommufd_hw_pagetable_alloc(struct iommufd_ctx *ictx, struct iommufd_ioas *ioas, + struct device *dev) +{ + struct iommufd_hw_pagetable *hwpt; + int rc; + + hwpt = iommufd_object_alloc(ictx, hwpt, IOMMUFD_OBJ_HW_PAGETABLE); + if (IS_ERR(hwpt)) + return hwpt; + + hwpt->domain = iommu_domain_alloc(dev->bus); + if (!hwpt->domain) { + rc = -ENOMEM; + goto out_abort; + } + + INIT_LIST_HEAD(&hwpt->devices); + INIT_LIST_HEAD(&hwpt->hwpt_item); + mutex_init(&hwpt->devices_lock); + /* Pairs with iommufd_hw_pagetable_destroy() */ + refcount_inc(&ioas->obj.users); + hwpt->ioas = ioas; + return hwpt; + +out_abort: + iommufd_object_abort(ictx, &hwpt->obj); + return ERR_PTR(rc); +} diff --git a/drivers/iommu/iommufd/ioas.c b/drivers/iommu/iommufd/ioas.c index 6ff97dafc89134..302779b33bd4a5 100644 --- a/drivers/iommu/iommufd/ioas.c +++ b/drivers/iommu/iommufd/ioas.c @@ -17,6 +17,7 @@ void iommufd_ioas_destroy(struct iommufd_object *obj) rc = iopt_unmap_all(&ioas->iopt, NULL); WARN_ON(rc && rc != -ENOENT); iopt_destroy_table(&ioas->iopt); + mutex_destroy(&ioas->mutex); } struct iommufd_ioas *iommufd_ioas_alloc(struct iommufd_ctx *ictx) @@ -28,6 +29,8 @@ struct iommufd_ioas *iommufd_ioas_alloc(struct iommufd_ctx *ictx) return ioas; iopt_init_table(&ioas->iopt); + INIT_LIST_HEAD(&ioas->hwpt_list); + mutex_init(&ioas->mutex); return ioas; } diff --git a/drivers/iommu/iommufd/iommufd_private.h b/drivers/iommu/iommufd/iommufd_private.h index 1a13c54a8def86..6b0448702a956d 100644 --- a/drivers/iommu/iommufd/iommufd_private.h +++ b/drivers/iommu/iommufd/iommufd_private.h @@ -103,6 +103,7 @@ static inline int iommufd_ucmd_respond(struct iommufd_ucmd *ucmd, enum iommufd_object_type { IOMMUFD_OBJ_NONE, IOMMUFD_OBJ_ANY = IOMMUFD_OBJ_NONE, + IOMMUFD_OBJ_HW_PAGETABLE, IOMMUFD_OBJ_IOAS, }; @@ -181,10 +182,20 @@ struct iommufd_object *_iommufd_object_alloc(struct iommufd_ctx *ictx, * io_pagetable object. It is a user controlled mapping of IOVA -> PFNs. The * mapping is copied into all of the associated domains and made available to * in-kernel users. + * + * Every iommu_domain that is created is wrapped in a iommufd_hw_pagetable + * object. When we go to attach a device to an IOAS we need to get an + * iommu_domain and wrapping iommufd_hw_pagetable for it. + * + * An iommu_domain & iommfd_hw_pagetable will be automatically selected + * for a device based on the hwpt_list. If no suitable iommu_domain + * is found a new iommu_domain will be created. */ struct iommufd_ioas { struct iommufd_object obj; struct io_pagetable iopt; + struct mutex mutex; + struct list_head hwpt_list; }; static inline struct iommufd_ioas *iommufd_get_ioas(struct iommufd_ucmd *ucmd, @@ -207,6 +218,28 @@ int iommufd_ioas_option(struct iommufd_ucmd *ucmd); int iommufd_option_rlimit_mode(struct iommu_option *cmd, struct iommufd_ctx *ictx); +/* + * A HW pagetable is called an iommu_domain inside the kernel. This user object + * allows directly creating and inspecting the domains. Domains that have kernel + * owned page tables will be associated with an iommufd_ioas that provides the + * IOVA to PFN map. + */ +struct iommufd_hw_pagetable { + struct iommufd_object obj; + struct iommufd_ioas *ioas; + struct iommu_domain *domain; + bool auto_domain : 1; + /* Head at iommufd_ioas::hwpt_list */ + struct list_head hwpt_item; + struct mutex devices_lock; + struct list_head devices; +}; + +struct iommufd_hw_pagetable * +iommufd_hw_pagetable_alloc(struct iommufd_ctx *ictx, struct iommufd_ioas *ioas, + struct device *dev); +void iommufd_hw_pagetable_destroy(struct iommufd_object *obj); + struct iommufd_access { unsigned long iova_alignment; u32 iopt_access_list_id; diff --git a/drivers/iommu/iommufd/main.c b/drivers/iommu/iommufd/main.c index 1c0a1f499378db..ac6580a7b70660 100644 --- a/drivers/iommu/iommufd/main.c +++ b/drivers/iommu/iommufd/main.c @@ -360,6 +360,9 @@ static const struct iommufd_object_ops iommufd_object_ops[] = { [IOMMUFD_OBJ_IOAS] = { .destroy = iommufd_ioas_destroy, }, + [IOMMUFD_OBJ_HW_PAGETABLE] = { + .destroy = iommufd_hw_pagetable_destroy, + }, }; static struct miscdevice iommu_misc_dev = { -- 2.38.1
next prev parent reply other threads:[~2022-11-29 20:30 UTC|newest] Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-11-29 20:29 [PATCH v6 00/19] IOMMUFD Generic interface Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 01/19] iommu: Add IOMMU_CAP_ENFORCE_CACHE_COHERENCY Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 02/19] iommu: Add device-centric DMA ownership interfaces Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 03/19] interval-tree: Add a utility to iterate over spans in an interval tree Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 04/19] scripts/kernel-doc: support EXPORT_SYMBOL_NS_GPL() with -export Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 05/19] iommufd: Document overview of iommufd Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 06/19] iommufd: File descriptor, context, kconfig and makefiles Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-30 14:02 ` Eric Auger 2022-12-04 10:58 ` Binbin Wu 2022-11-29 20:29 ` [PATCH v6 07/19] kernel/user: Allow user::locked_vm to be usable for iommufd Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:42 ` Michael S. Tsirkin 2022-11-29 20:48 ` Jason Gunthorpe 2022-11-29 21:10 ` Michael S. Tsirkin 2022-11-29 20:29 ` [PATCH v6 08/19] iommufd: PFN handling for iopt_pages Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-12-05 15:58 ` Binbin Wu 2022-12-06 20:53 ` Jason Gunthorpe 2022-12-06 12:36 ` Binbin Wu 2022-12-06 20:57 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 09/19] iommufd: Algorithms for PFN storage Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 10/19] iommufd: Data structure to provide IOVA to PFN mapping Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 11/19] iommufd: IOCTLs for the io_pagetable Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-30 14:04 ` Eric Auger 2022-11-29 20:29 ` Jason Gunthorpe [this message] 2022-11-29 20:29 ` [PATCH v6 12/19] iommufd: Add a HW pagetable object Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 13/19] iommufd: Add kAPI toward external drivers for physical devices Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 14/19] iommufd: Add kAPI toward external drivers for kernel access Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 15/19] iommufd: vfio container FD ioctl compatibility Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 16/19] iommufd: Add kernel support for testing iommufd Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2024-04-22 7:27 ` Geert Uytterhoeven 2024-04-22 11:54 ` Jason Gunthorpe 2024-04-22 12:48 ` Geert Uytterhoeven 2024-04-22 12:50 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 17/19] iommufd: Add some fault injection points Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 18/19] iommufd: Add additional invariant assertions Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-29 20:29 ` [PATCH v6 19/19] iommufd: Add a selftest Jason Gunthorpe 2022-11-29 20:29 ` Jason Gunthorpe 2022-11-30 7:14 ` Yi Liu 2022-11-30 13:51 ` Jason Gunthorpe 2022-11-30 17:18 ` Eric Auger 2022-12-01 0:13 ` Jason Gunthorpe 2022-12-01 4:59 ` Yi Liu
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