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Defined in 1 files as a prototype:

Defined in 1 files as a function:

Referenced in 13 files:

Smatch caller information:

drivers/tty/hvc/hvc_xen.c xencons_connect_backend() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 0 ref 0-s32max
PARAM_VALUE 2 frame 0-4611686018427387902,u64max
PARAM_VALUE 3 readonly 0
DATA_SOURCE 0 ref r gnttab_claim_grant_reference
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2 &dev->reclaim_sem

drivers/xen/xenbus/xenbus_dev_backend.c xenbus_alloc() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 0 ref 1
PARAM_VALUE 2 frame 0-4611686018427387902,u64max
PARAM_VALUE 3 readonly 0
DATA_SOURCE 1 domid $0
CAPABLE 0 21
NOCHECK_CALL
USER_DATA 1 domid 0-u16max
LOCK2 global &xs_response_mutex
LOCK2 global &xs_watch_rwsem

drivers/net/xen-netfront.c gnttab_page_grant_foreign_access_ref_one() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 0 ref 0-4294967294
PARAM_VALUE 3 readonly 0
DATA_SOURCE 0 ref $0
DATA_SOURCE 1 domid $1
DATA_SOURCE 3 readonly $3
BIT_INFO 0 ref 0x0,0x7fffffff
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2 &queue->rx_lock
HALF_LOCKED2 bh
HALF_LOCKED2 global &xenwatch_mutex
TYPE_LOCK (struct netfront_queue)->rx_lock

drivers/net/xen-netfront.c xennet_tx_setup_grant() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 0 ref 0-4294967294
PARAM_VALUE 3 readonly 4
DATA_SOURCE 0 ref r gnttab_claim_grant_reference
DATA_SOURCE 2 frame $0
BIT_INFO 0 ref 0x0,0x7fffffff
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2 &queue->tx_lock
HALF_LOCKED2 &rinfo->ring_lock
HALF_LOCKED2 flags

drivers/xen/grant-dma-ops.c xen_grant_dma_alloc() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 2 frame 0-4611686018427387902,u64max
PARAM_VALUE 3 readonly 0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL

drivers/xen/grant-dma-ops.c xen_grant_dma_map_phys() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 3 readonly 0-1
FUZZY_MAX 3 readonly 1
HARD_MAX 3 readonly 1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL

drivers/xen/pvcalls-front.c pvcalls_front_probe() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 0 ref 0-s32max
PARAM_VALUE 2 frame 0-4611686018427387902,u64max
PARAM_VALUE 3 readonly 0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2 &dev->reclaim_sem
TYPE_LOCK (struct xenbus_device)->reclaim_sem

drivers/scsi/xen-scsifront.c map_data_for_request() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 0 ref 0-4294967267,4294967269-4294967294
PARAM_VALUE 3 readonly 1
DATA_SOURCE 0 ref r gnttab_claim_grant_reference
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2 flags
LOCK2 shost->host_lock
HALF_LOCKED2 &sdev->state_mutex

drivers/scsi/xen-scsifront.c map_data_for_request() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 0 ref 0-4294967267,4294967269-4294967294
PARAM_VALUE 3 readonly 0-1
DATA_SOURCE 0 ref r gnttab_claim_grant_reference
FUZZY_MAX 3 readonly 1
HARD_MAX 3 readonly 1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2 flags
LOCK2 shost->host_lock
HALF_LOCKED2 &sdev->state_mutex

drivers/xen/xenbus/xenbus_client.c xenbus_setup_ring() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 0 ref 0-4294967294
PARAM_VALUE 3 readonly 0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2 &dev->reclaim_sem
HALF_LOCKED2 global &xenwatch_mutex

drivers/xen/xen-front-pgdir-shbuf.c grant_references() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 0 ref 0-s32max
PARAM_VALUE 3 readonly 0
DATA_SOURCE 0 ref r gnttab_claim_grant_reference
DATA_SOURCE 2 frame r xen_page_to_gfn
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2 &runtime->buffer_mutex

drivers/xen/xen-front-pgdir-shbuf.c guest_grant_refs_for_buffer() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 0 ref 0-s32max
PARAM_VALUE 3 readonly 0
DATA_SOURCE 0 ref r gnttab_claim_grant_reference
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2 &runtime->buffer_mutex

drivers/xen/grant-table.c gnttab_grant_foreign_access() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 0 ref 0-s32max
PARAM_VALUE 3 readonly 0-1
DATA_SOURCE 0 ref r get_free_entries
DATA_SOURCE 1 domid $0
DATA_SOURCE 2 frame $1
DATA_SOURCE 3 readonly $2
FUZZY_MAX 3 readonly 1
HARD_MAX 3 readonly 1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA 1 domid 0-u16max
USER_DATA 3 readonly 0-1
HALF_LOCKED2 global &xenwatch_mutex

drivers/usb/host/xen-hcd.c xenhcd_gnttab_map() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 0 ref 0-4294967294
PARAM_VALUE 2 frame 0-4611686018427387902,u64max
PARAM_VALUE 3 readonly 0,4
DATA_SOURCE 0 ref r gnttab_claim_grant_reference
DATA_SOURCE 3 readonly $6
FUZZY_MAX 3 readonly 4
BIT_INFO 0 ref 0x0,0x7fffffff
BIT_INFO 3 readonly 0x0,0x4
HARD_MAX 3 readonly 4
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2 &info->lock
LOCK2 flags
TYPE_LOCK (struct xenhcd_info)->lock

drivers/xen/gntdev-dmabuf.c dmabuf_imp_grant_foreign_access() -> gnttab_grant_foreign_access_ref()

Type Parameter Key Value
PARAM_VALUE 0 ref 0-s32max
PARAM_VALUE 3 readonly 0
DATA_SOURCE 0 ref r gnttab_claim_grant_reference
DATA_SOURCE 1 domid $3
NOCHECK_CALL
USER_DATA 1 domid 0-u16max