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63 Allows user space to retrieve machine and kvm specific cpu related information::
75 :Returns:   -EFAULT if the given address is not accessible from kernel space;
82 Allows user space to retrieve or request to change cpu related information for a vcpu::
100 	   -EFAULT if the given address is not accessible from kernel space;
109 Allows user space to retrieve available cpu features. A feature is available if
120 :Returns:  -EFAULT if the given address is not accessible from kernel space;
126 Allows user space to retrieve or change enabled cpu features for all VCPUs of a
133 :Returns:   -EFAULT if the given address is not accessible from kernel space;
143 Allows user space to retrieve available cpu subfunctions without any filtering
176 :Returns:   -EFAULT if the given address is not accessible from kernel space;
182 Allows user space to retrieve or change cpu subfunctions to be indicated for
188 has not been disabled by user space (so the instruction to be queried is
199 :Returns:   -EFAULT if the given address is not accessible from kernel space;
212 Allows user space to set/get the TOD clock extension (u8) (superseded by
215 :Parameters: address of a buffer in user space to store the data (u8) to
216 :Returns:   -EFAULT if the given address is not accessible from kernel space;
222 Allows user space to set/get bits 0-63 of the TOD clock register as defined in
225 :Parameters: address of a buffer in user space to store the data (u64) to
226 :Returns:    -EFAULT if the given address is not accessible from kernel space
231 Allows user space to set/get bits 0-63 of the TOD clock register as defined in
233 also allows user space to get/set it. If the guest CPU model does not support
236 :Parameters: address of a buffer in user space to store the data
238 :Returns:   -EFAULT if the given address is not accessible from kernel space;
249 Allows user space to enable aes key wrapping, including generating a new
258 Allows user space to enable dea key wrapping, including generating a new
267 Allows user space to disable aes key wrapping, clearing the wrapping key.
275 Allows user space to disable dea key wrapping, clearing the wrapping key.
312 :Parameters: address of a buffer in user space to store the data (u64) to;
315 :Returns:   -EFAULT if the given address is not accessible from kernel space;