apicbase 63 tools/testing/selftests/kvm/x86_64/smm_test.c uint64_t apicbase = rdmsr(MSR_IA32_APICBASE); apicbase 67 tools/testing/selftests/kvm/x86_64/smm_test.c wrmsr(MSR_IA32_APICBASE, apicbase | X2APIC_ENABLE);