251 	union hv_x64_msr_hypercall_contents hypercall_msr;  in hyperv_init()  local
309 	rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);  in hyperv_init()
310 	hypercall_msr.enable = 1;  in hyperv_init()
311 	hypercall_msr.guest_physical_address = vmalloc_to_pfn(hv_hypercall_pg);  in hyperv_init()
312 	wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);  in hyperv_init()
335 	union hv_x64_msr_hypercall_contents hypercall_msr;  in hyperv_cleanup()  local
348 	hypercall_msr.as_uint64 = 0;  in hyperv_cleanup()
349 	wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);  in hyperv_cleanup()
352 	hypercall_msr.as_uint64 = 0;  in hyperv_cleanup()
353 	wrmsrl(HV_X64_MSR_REFERENCE_TSC, hypercall_msr.as_uint64);  in hyperv_cleanup()
415 	union hv_x64_msr_hypercall_contents hypercall_msr;  in hv_is_hyperv_initialized()  local
428 	hypercall_msr.as_uint64 = 0;  in hv_is_hyperv_initialized()
429 	rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);  in hv_is_hyperv_initialized()
431 	return hypercall_msr.enable;  in hv_is_hyperv_initialized()