diff options
Diffstat (limited to 'include/sysemu/kvm.h')
| -rw-r--r-- | include/sysemu/kvm.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h index 983e99e1e7..2a58b4d19e 100644 --- a/include/sysemu/kvm.h +++ b/include/sysemu/kvm.h @@ -240,6 +240,32 @@ int kvm_device_ioctl(int fd, int type, ...); int kvm_vm_check_attr(KVMState *s, uint32_t group, uint64_t attr); /** + * kvm_device_check_attr - check for existence of a specific device attribute + * @fd: The device file descriptor + * @group: the group + * @attr: the attribute of that group to query for + * + * Returns: 1 if the attribute exists + * 0 if the attribute either does not exist or if the vm device + * interface is unavailable + */ +int kvm_device_check_attr(int fd, uint32_t group, uint64_t attr); + +/** + * kvm_device_access - set or get value of a specific vm attribute + * @fd: The device file descriptor + * @group: the group + * @attr: the attribute of that group to set or get + * @val: pointer to a storage area for the value + * @write: true for set and false for get operation + * + * This function is not allowed to fail. Use kvm_device_check_attr() + * in order to check for the availability of optional attributes. + */ +void kvm_device_access(int fd, int group, uint64_t attr, + void *val, bool write); + +/** * kvm_create_device - create a KVM device for the device control API * @KVMState: The KVMState pointer * @type: The KVM device type (see Documentation/virtual/kvm/devices in the |