Defined in 1 files as a function:

Referenced in 1 files:

Smatch caller information:

drivers/iommu/intel/pasid.c intel_pasid_clear_entry() -> intel_pasid_get_entry()

Type Parameter Key Value
PARAM_VALUE 0 dev 4096-ptr_max
PARAM_VALUE 0 dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 dev->dma_ops->alloc 0,1744715142275031040,2065280936184246272,2938795245442469888
PARAM_VALUE 0 dev->dma_ops->alloc_pages_op 0,4686288359180861440,6350905364812603392,6978773206971854848
PARAM_VALUE 0 dev->dma_ops->cache_sync 0
PARAM_VALUE 0 dev->dma_ops->dma_supported 0,2528523692154392576,3617072262637035520,5023592177070743552,5276104885786021888
PARAM_VALUE 0 dev->dma_ops->free 0,4778164490434129920,7144974343242604544,7861694134817480704
PARAM_VALUE 0 dev->dma_ops->free_pages 0,239457316199952384,5196233516945883136,7413093576918179840
PARAM_VALUE 0 dev->dma_ops->get_merge_boundary 0
PARAM_VALUE 0 dev->dma_ops->get_required_mask 0,7770840938859397120
PARAM_VALUE 0 dev->dma_ops->get_sgtable 0,1322759480623644672
PARAM_VALUE 0 dev->dma_ops->map_phys 0,2506261230157742080,4169194063996235776,4848421345171935232,6326163439792029696
PARAM_VALUE 0 dev->dma_ops->map_sg 0,2118452656510775296,2518538481676259328,5872201013595766784,6630017431831871488
PARAM_VALUE 0 dev->dma_ops->max_mapping_size 0,8830639662091943936
PARAM_VALUE 0 dev->dma_ops->mmap 0,5761417605877342208,7694740394750603264
PARAM_VALUE 0 dev->dma_ops->opt_mapping_size 0
PARAM_VALUE 0 dev->dma_ops->sync_sg_for_cpu 0,4862850025765572608
PARAM_VALUE 0 dev->dma_ops->sync_sg_for_device 0,3732476178258022400
PARAM_VALUE 0 dev->dma_ops->sync_single_for_cpu 0,1155325867376779264
PARAM_VALUE 0 dev->dma_ops->sync_single_for_device 0,8781567156597239808
PARAM_VALUE 0 dev->dma_ops->unmap_phys 0,3634718672199266304,5690836758666383360,6257189515678003200,7756707427785986048
PARAM_VALUE 0 dev->dma_ops->unmap_sg 0,1256335292805263360,8472845699660435456,8676762248147066880,8920167536469053440
PARAM_VALUE 0 dev->iommu 4096-ptr_max
PARAM_VALUE 0 dev->iommu->iommu_dev->ops->blocked_domain 0,532766077614051328,1309262597071863808,3360818763908841472,5161617956659249152,5314750282517213184,6300359532015144960
PARAM_VALUE 0 dev->iommu->iommu_dev->ops->release_domain 0,109353748397924352,532766077614051328,3360818763908841472,5161617956659249152,8123815121812471808
PARAM_VALUE 0 dev->kobj.parent->sd->attr.open->nr_mmapped 0-4294967295
PARAM_VALUE 0 dev->kobj.sd->attr.open->nr_mmapped 0-4294967295
PARAM_VALUE 0 dev->power.wakeirq->status 0-4294967295
PARAM_VALUE 1 pasid 0-4294967294
BUF_SIZE 0 dev (-1)-0,24-s32max
BUF_SIZE 0 dev (-1)-0,24-s32max
BUF_SIZE 0 dev->bus (-1),168
BUF_SIZE 0 dev->dma_mask (-1),8
BUF_SIZE 0 dev->dma_parms (-1),16
BUF_SIZE 0 dev->groups (-1),16
BUF_SIZE 0 dev->init_name (-1),14
BUF_SIZE 0 dev->parent (-1),1616
CAPPED_DATA 0 dev 1
CAPPED_DATA 1 pasid 1
DATA_SOURCE 0 dev $0
DATA_SOURCE 1 pasid $1
STR_LEN 0 dev->parent (-1),4-5,13
NOSPEC 1 pasid
NOSPEC 1 pasid
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 0 dev->class 0-16777215
HOST_DATA 0 dev->flags 0-u32max
HOST_DATA 0 dev->iommu.max_pasids 0-u32max
USER_DATA 1 pasid 1-4294967294[c]
NO_OVERFLOW_SIMPLE 0 dev->cma_area->available_count
HALF_LOCKED2 &domain->lock
HALF_LOCKED2 flags
HALF_LOCKED2 global &srcu
HALF_LOCKED2 0 &dev->mutex

drivers/iommu/intel/pasid.c intel_pasid_setup_dirty_tracking() -> intel_pasid_get_entry()

Type Parameter Key Value
DATA_SOURCE 0 dev $1
DATA_SOURCE 1 pasid $2
PREEMPT_ADD <- disables preempt
LOCK2 &iommu->lock
LOCK2 &iopt->iova_rwsem
HALF_LOCKED2 &domain->lock
HALF_LOCKED2 &domain->s1_lock
HALF_LOCKED2 flags
TYPE_LOCK (struct dmar_domain)->lock
TYPE_LOCK (struct intel_iommu)->lock
TYPE_LOCK (struct io_pagetable)->iova_rwsem

drivers/iommu/intel/pasid.c intel_pasid_setup_first_level() -> intel_pasid_get_entry()

Type Parameter Key Value
PARAM_VALUE 0 dev 4096-ptr_max
PARAM_VALUE 0 dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 dev->dma_ops->alloc 0,1744715142275031040,2065280936184246272,2938795245442469888
PARAM_VALUE 0 dev->dma_ops->alloc_pages_op 0,4686288359180861440,6350905364812603392,6978773206971854848
PARAM_VALUE 0 dev->dma_ops->cache_sync 0
PARAM_VALUE 0 dev->dma_ops->dma_supported 0,2528523692154392576,3617072262637035520,5023592177070743552,5276104885786021888
PARAM_VALUE 0 dev->dma_ops->free 0,4778164490434129920,7144974343242604544,7861694134817480704
PARAM_VALUE 0 dev->dma_ops->free_pages 0,239457316199952384,5196233516945883136,7413093576918179840
PARAM_VALUE 0 dev->dma_ops->get_merge_boundary 0
PARAM_VALUE 0 dev->dma_ops->get_required_mask 0,7770840938859397120
PARAM_VALUE 0 dev->dma_ops->get_sgtable 0,1322759480623644672
PARAM_VALUE 0 dev->dma_ops->map_phys 0,2506261230157742080,4169194063996235776,4848421345171935232,6326163439792029696
PARAM_VALUE 0 dev->dma_ops->map_sg 0,2118452656510775296,2518538481676259328,5872201013595766784,6630017431831871488
PARAM_VALUE 0 dev->dma_ops->max_mapping_size 0,8830639662091943936
PARAM_VALUE 0 dev->dma_ops->mmap 0,5761417605877342208,7694740394750603264
PARAM_VALUE 0 dev->dma_ops->opt_mapping_size 0
PARAM_VALUE 0 dev->dma_ops->sync_sg_for_cpu 0,4862850025765572608
PARAM_VALUE 0 dev->dma_ops->sync_sg_for_device 0,3732476178258022400
PARAM_VALUE 0 dev->dma_ops->sync_single_for_cpu 0,1155325867376779264
PARAM_VALUE 0 dev->dma_ops->sync_single_for_device 0,8781567156597239808
PARAM_VALUE 0 dev->dma_ops->unmap_phys 0,3634718672199266304,5690836758666383360,6257189515678003200,7756707427785986048
PARAM_VALUE 0 dev->dma_ops->unmap_sg 0,1256335292805263360,8472845699660435456,8676762248147066880,8920167536469053440
PARAM_VALUE 0 dev->iommu 0,4096-ptr_max
PARAM_VALUE 0 dev->iommu->fault_param->queue->wq->flush_color s32min-s32max
PARAM_VALUE 0 dev->iommu->fault_param->queue->wq->work_color s32min-s32max
PARAM_VALUE 0 dev->iommu->iommu_dev->ops->blocked_domain 0,532766077614051328,1309262597071863808,3360818763908841472,5161617956659249152,5314750282517213184,6300359532015144960
PARAM_VALUE 0 dev->iommu->iommu_dev->ops->release_domain 0,109353748397924352,532766077614051328,3360818763908841472,5161617956659249152,8123815121812471808
PARAM_VALUE 0 dev->kobj.parent->sd->attr.open->nr_mmapped 0-4294967295
PARAM_VALUE 0 dev->kobj.sd->attr.open->nr_mmapped 0-4294967295
PARAM_VALUE 0 dev->power.wakeirq->status 0-4294967295
BUF_SIZE 0 dev (-1)-0,24,120,1616,7072
BUF_SIZE 0 dev (-1)-0,24,120,1616,7072
BUF_SIZE 0 dev->dma_mask (-1),8
BUF_SIZE 0 dev->dma_parms (-1),16
CAPPED_DATA 0 dev 1
DATA_SOURCE 0 dev $1
DATA_SOURCE 1 pasid $3
STR_LEN 0 dev->parent (-1)
NOSPEC 1 pasid
NOSPEC 1 pasid
PREEMPT_ADD <- disables preempt
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 0 dev->class 0-16777215
HOST_DATA 0 dev->flags 0-u32max
HOST_DATA 0 dev->iommu.max_pasids 0-u32max
USER_DATA 1 pasid 1-u32max
NO_OVERFLOW_SIMPLE 0 dev->cma_area->available_count
LOCK2 &iommu->lock
HALF_LOCKED2 &group->mutex
HALF_LOCKED2 0 &dev->mutex
TYPE_LOCK (struct intel_iommu)->lock

drivers/iommu/intel/pasid.c intel_pasid_setup_nested() -> intel_pasid_get_entry()

Type Parameter Key Value
PARAM_VALUE 0 dev 4096-ptr_max
PARAM_VALUE 0 dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 dev->dma_ops->alloc 0,1744715142275031040,2065280936184246272,2938795245442469888
PARAM_VALUE 0 dev->dma_ops->alloc_pages_op 0,4686288359180861440,6350905364812603392,6978773206971854848
PARAM_VALUE 0 dev->dma_ops->cache_sync 0
PARAM_VALUE 0 dev->dma_ops->dma_supported 0,2528523692154392576,3617072262637035520,5023592177070743552,5276104885786021888
PARAM_VALUE 0 dev->dma_ops->free 0,4778164490434129920,7144974343242604544,7861694134817480704
PARAM_VALUE 0 dev->dma_ops->free_pages 0,239457316199952384,5196233516945883136,7413093576918179840
PARAM_VALUE 0 dev->dma_ops->get_merge_boundary 0
PARAM_VALUE 0 dev->dma_ops->get_required_mask 0,7770840938859397120
PARAM_VALUE 0 dev->dma_ops->get_sgtable 0,1322759480623644672
PARAM_VALUE 0 dev->dma_ops->map_phys 0,2506261230157742080,4169194063996235776,4848421345171935232,6326163439792029696
PARAM_VALUE 0 dev->dma_ops->map_sg 0,2118452656510775296,2518538481676259328,5872201013595766784,6630017431831871488
PARAM_VALUE 0 dev->dma_ops->max_mapping_size 0,8830639662091943936
PARAM_VALUE 0 dev->dma_ops->mmap 0,5761417605877342208,7694740394750603264
PARAM_VALUE 0 dev->dma_ops->opt_mapping_size 0
PARAM_VALUE 0 dev->dma_ops->sync_sg_for_cpu 0,4862850025765572608
PARAM_VALUE 0 dev->dma_ops->sync_sg_for_device 0,3732476178258022400
PARAM_VALUE 0 dev->dma_ops->sync_single_for_cpu 0,1155325867376779264
PARAM_VALUE 0 dev->dma_ops->sync_single_for_device 0,8781567156597239808
PARAM_VALUE 0 dev->dma_ops->unmap_phys 0,3634718672199266304,5690836758666383360,6257189515678003200,7756707427785986048
PARAM_VALUE 0 dev->dma_ops->unmap_sg 0,1256335292805263360,8472845699660435456,8676762248147066880,8920167536469053440
PARAM_VALUE 0 dev->iommu 0,4096-ptr_max
PARAM_VALUE 0 dev->iommu->iommu_dev->ops->blocked_domain 0,532766077614051328,1309262597071863808,3360818763908841472,5161617956659249152,5314750282517213184,6300359532015144960
PARAM_VALUE 0 dev->iommu->iommu_dev->ops->release_domain 0,109353748397924352,532766077614051328,3360818763908841472,5161617956659249152,8123815121812471808
PARAM_VALUE 0 dev->power.wakeirq->status 0-4294967295
BUF_SIZE 0 dev (-1),1616
BUF_SIZE 0 dev (-1),1616
BUF_SIZE 0 dev->dma_mask (-1),8
BUF_SIZE 0 dev->dma_parms (-1),16
CAPPED_DATA 0 dev 1
DATA_SOURCE 0 dev $1
DATA_SOURCE 1 pasid $2
NOSPEC 1 pasid
NOSPEC 1 pasid
PREEMPT_ADD <- disables preempt
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 0 dev->class 0-16777215
HOST_DATA 0 dev->flags 0-u32max
HOST_DATA 0 dev->iommu.max_pasids 0-u32max
USER_DATA 1 pasid 1-u32max
NO_OVERFLOW_SIMPLE 0 dev->cma_area->available_count
LOCK2 &iommu->lock
HALF_LOCKED2 &group->mutex
TYPE_LOCK (struct intel_iommu)->lock

drivers/iommu/intel/pasid.c intel_pasid_setup_page_snoop_control() -> intel_pasid_get_entry()

Type Parameter Key Value
PARAM_VALUE 1 pasid 0
DATA_SOURCE 0 dev $1
DATA_SOURCE 1 pasid $2
PREEMPT_ADD <- disables preempt
LOCK2 &dmar_domain->lock
LOCK2 &iommu->lock
LOCK2 irq
HALF_LOCKED2 &container->group_lock
HALF_LOCKED2 &ioas->mutex
HALF_LOCKED2 &iommu->lock
TYPE_LOCK (struct dmar_domain)->lock
TYPE_LOCK (struct intel_iommu)->lock

drivers/iommu/intel/pasid.c intel_pasid_setup_pass_through() -> intel_pasid_get_entry()

Type Parameter Key Value
PARAM_VALUE 0 dev 4096-ptr_max
PARAM_VALUE 0 dev->iommu 0,4096-ptr_max
CAPPED_DATA 0 dev 1
DATA_SOURCE 0 dev $1
DATA_SOURCE 1 pasid $2
PREEMPT_ADD <- disables preempt
LOCK2 &iommu->lock
TYPE_LOCK (struct intel_iommu)->lock

drivers/iommu/intel/pasid.c intel_pasid_setup_second_level() -> intel_pasid_get_entry()

Type Parameter Key Value
PARAM_VALUE 0 dev 4096-ptr_max
PARAM_VALUE 0 dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 dev->dma_ops->alloc 0,1744715142275031040,2065280936184246272,2938795245442469888
PARAM_VALUE 0 dev->dma_ops->alloc_pages_op 0,4686288359180861440,6350905364812603392,6978773206971854848
PARAM_VALUE 0 dev->dma_ops->cache_sync 0
PARAM_VALUE 0 dev->dma_ops->dma_supported 0,2528523692154392576,3617072262637035520,5023592177070743552,5276104885786021888
PARAM_VALUE 0 dev->dma_ops->free 0,4778164490434129920,7144974343242604544,7861694134817480704
PARAM_VALUE 0 dev->dma_ops->free_pages 0,239457316199952384,5196233516945883136,7413093576918179840
PARAM_VALUE 0 dev->dma_ops->get_merge_boundary 0
PARAM_VALUE 0 dev->dma_ops->get_required_mask 0,7770840938859397120
PARAM_VALUE 0 dev->dma_ops->get_sgtable 0,1322759480623644672
PARAM_VALUE 0 dev->dma_ops->map_phys 0,2506261230157742080,4169194063996235776,4848421345171935232,6326163439792029696
PARAM_VALUE 0 dev->dma_ops->map_sg 0,2118452656510775296,2518538481676259328,5872201013595766784,6630017431831871488
PARAM_VALUE 0 dev->dma_ops->max_mapping_size 0,8830639662091943936
PARAM_VALUE 0 dev->dma_ops->mmap 0,5761417605877342208,7694740394750603264
PARAM_VALUE 0 dev->dma_ops->opt_mapping_size 0
PARAM_VALUE 0 dev->dma_ops->sync_sg_for_cpu 0,4862850025765572608
PARAM_VALUE 0 dev->dma_ops->sync_sg_for_device 0,3732476178258022400
PARAM_VALUE 0 dev->dma_ops->sync_single_for_cpu 0,1155325867376779264
PARAM_VALUE 0 dev->dma_ops->sync_single_for_device 0,8781567156597239808
PARAM_VALUE 0 dev->dma_ops->unmap_phys 0,3634718672199266304,5690836758666383360,6257189515678003200,7756707427785986048
PARAM_VALUE 0 dev->dma_ops->unmap_sg 0,1256335292805263360,8472845699660435456,8676762248147066880,8920167536469053440
PARAM_VALUE 0 dev->iommu 0,4096-ptr_max
PARAM_VALUE 0 dev->iommu->fault_param->queue->wq->flush_color s32min-s32max
PARAM_VALUE 0 dev->iommu->fault_param->queue->wq->work_color s32min-s32max
PARAM_VALUE 0 dev->iommu->iommu_dev->ops->blocked_domain 0,532766077614051328,1309262597071863808,3360818763908841472,5161617956659249152,5314750282517213184,6300359532015144960
PARAM_VALUE 0 dev->iommu->iommu_dev->ops->release_domain 0,109353748397924352,532766077614051328,3360818763908841472,5161617956659249152,8123815121812471808
PARAM_VALUE 0 dev->kobj.parent->sd->attr.open->nr_mmapped 0-4294967295
PARAM_VALUE 0 dev->kobj.sd->attr.open->nr_mmapped 0-4294967295
PARAM_VALUE 0 dev->power.wakeirq->status 0-4294967295
BUF_SIZE 0 dev (-1)-0,24-s32max
BUF_SIZE 0 dev (-1)-0,24-s32max
BUF_SIZE 0 dev->bus (-1),168
BUF_SIZE 0 dev->dma_mask (-1),8
BUF_SIZE 0 dev->dma_parms (-1),16
BUF_SIZE 0 dev->groups (-1),16
BUF_SIZE 0 dev->init_name (-1),14
BUF_SIZE 0 dev->parent (-1),1616
CAPPED_DATA 0 dev 1
DATA_SOURCE 0 dev $2
DATA_SOURCE 1 pasid $3
STR_LEN 0 dev->parent (-1),4-5,13
NOSPEC 1 pasid
NOSPEC 1 pasid
PREEMPT_ADD <- disables preempt
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 0 dev->class 0-16777215
HOST_DATA 0 dev->flags 0-u32max
HOST_DATA 0 dev->iommu.max_pasids 0-u32max
USER_DATA 1 pasid 1-u32max
NO_OVERFLOW_SIMPLE 0 dev->cma_area->available_count
LOCK2 &iommu->lock
HALF_LOCKED2 &group->mutex
HALF_LOCKED2 0 &dev->mutex
TYPE_LOCK (struct intel_iommu)->lock

drivers/iommu/intel/pasid.c intel_pasid_tear_down_entry() -> intel_pasid_get_entry()

Type Parameter Key Value
PARAM_VALUE 0 dev 4096-ptr_max
PARAM_VALUE 0 dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 dev->dma_ops->alloc 0,1744715142275031040,2065280936184246272,2938795245442469888
PARAM_VALUE 0 dev->dma_ops->alloc_pages_op 0,4686288359180861440,6350905364812603392,6978773206971854848
PARAM_VALUE 0 dev->dma_ops->cache_sync 0
PARAM_VALUE 0 dev->dma_ops->dma_supported 0,2528523692154392576,3617072262637035520,5023592177070743552,5276104885786021888
PARAM_VALUE 0 dev->dma_ops->free 0,4778164490434129920,7144974343242604544,7861694134817480704
PARAM_VALUE 0 dev->dma_ops->free_pages 0,239457316199952384,5196233516945883136,7413093576918179840
PARAM_VALUE 0 dev->dma_ops->get_merge_boundary 0
PARAM_VALUE 0 dev->dma_ops->get_required_mask 0,7770840938859397120
PARAM_VALUE 0 dev->dma_ops->get_sgtable 0,1322759480623644672
PARAM_VALUE 0 dev->dma_ops->map_phys 0,2506261230157742080,4169194063996235776,4848421345171935232,6326163439792029696
PARAM_VALUE 0 dev->dma_ops->map_sg 0,2118452656510775296,2518538481676259328,5872201013595766784,6630017431831871488
PARAM_VALUE 0 dev->dma_ops->max_mapping_size 0,8830639662091943936
PARAM_VALUE 0 dev->dma_ops->mmap 0,5761417605877342208,7694740394750603264
PARAM_VALUE 0 dev->dma_ops->opt_mapping_size 0
PARAM_VALUE 0 dev->dma_ops->sync_sg_for_cpu 0,4862850025765572608
PARAM_VALUE 0 dev->dma_ops->sync_sg_for_device 0,3732476178258022400
PARAM_VALUE 0 dev->dma_ops->sync_single_for_cpu 0,1155325867376779264
PARAM_VALUE 0 dev->dma_ops->sync_single_for_device 0,8781567156597239808
PARAM_VALUE 0 dev->dma_ops->unmap_phys 0,3634718672199266304,5690836758666383360,6257189515678003200,7756707427785986048
PARAM_VALUE 0 dev->dma_ops->unmap_sg 0,1256335292805263360,8472845699660435456,8676762248147066880,8920167536469053440
PARAM_VALUE 0 dev->iommu 0,4096-ptr_max
PARAM_VALUE 0 dev->iommu->iommu_dev->ops->blocked_domain 0,532766077614051328,1309262597071863808,3360818763908841472,5161617956659249152,5314750282517213184,6300359532015144960
PARAM_VALUE 0 dev->iommu->iommu_dev->ops->release_domain 0,109353748397924352,532766077614051328,3360818763908841472,5161617956659249152,8123815121812471808
PARAM_VALUE 0 dev->kobj.parent->sd->attr.open->nr_mmapped 0-4294967295
PARAM_VALUE 0 dev->kobj.sd->attr.open->nr_mmapped 0-4294967295
PARAM_VALUE 0 dev->power.wakeirq->status 0-4294967295
BUF_SIZE 0 dev (-1)-0,24-s32max
BUF_SIZE 0 dev (-1)-0,24-s32max
BUF_SIZE 0 dev->bus (-1),168
BUF_SIZE 0 dev->dma_mask (-1),8
BUF_SIZE 0 dev->dma_parms (-1),16
BUF_SIZE 0 dev->groups (-1),16
BUF_SIZE 0 dev->init_name (-1),14
BUF_SIZE 0 dev->parent (-1),1616
CAPPED_DATA 0 dev 1
DATA_SOURCE 0 dev $1
DATA_SOURCE 1 pasid $2
STR_LEN 0 dev->parent (-1),4-5,13
NOSPEC 1 pasid
NOSPEC 1 pasid
PREEMPT_ADD <- disables preempt
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 0 dev->class 0-16777215
HOST_DATA 0 dev->flags 0-u32max
HOST_DATA 0 dev->iommu.max_pasids 0-u32max
USER_DATA 1 pasid 1-u32max
NO_OVERFLOW_SIMPLE 0 dev->cma_area->available_count
LOCK2 &iommu->lock
HALF_LOCKED2 &domain->lock
HALF_LOCKED2 flags
HALF_LOCKED2 global &srcu
HALF_LOCKED2 0 &dev->mutex
TYPE_LOCK (struct intel_iommu)->lock