diff options
Diffstat (limited to 'Documentation/virtual/kvm/devices/vfio.txt')
| -rw-r--r-- | Documentation/virtual/kvm/devices/vfio.txt | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/Documentation/virtual/kvm/devices/vfio.txt b/Documentation/virtual/kvm/devices/vfio.txt index ef51740c67ca..528c77c8022c 100644 --- a/Documentation/virtual/kvm/devices/vfio.txt +++ b/Documentation/virtual/kvm/devices/vfio.txt @@ -16,7 +16,21 @@ Groups: KVM_DEV_VFIO_GROUP attributes: KVM_DEV_VFIO_GROUP_ADD: Add a VFIO group to VFIO-KVM device tracking + kvm_device_attr.addr points to an int32_t file descriptor + for the VFIO group. KVM_DEV_VFIO_GROUP_DEL: Remove a VFIO group from VFIO-KVM device tracking + kvm_device_attr.addr points to an int32_t file descriptor + for the VFIO group. + KVM_DEV_VFIO_GROUP_SET_SPAPR_TCE: attaches a guest visible TCE table + allocated by sPAPR KVM. + kvm_device_attr.addr points to a struct: -For each, kvm_device_attr.addr points to an int32_t file descriptor -for the VFIO group. + struct kvm_vfio_spapr_tce { + __s32 groupfd; + __s32 tablefd; + }; + + where + @groupfd is a file descriptor for a VFIO group; + @tablefd is a file descriptor for a TCE table allocated via + KVM_CREATE_SPAPR_TCE. |