Symbol: HV_REGISTER_GUEST_OS_ID
arch/arm64/hyperv/hv_core.c
179
guest_id = hv_get_vpreg(HV_REGISTER_GUEST_OS_ID);
arch/arm64/hyperv/mshyperv.c
90
hv_set_vpreg(HV_REGISTER_GUEST_OS_ID, guest_id);