716
717 if (logical_processors_per_package() == 1) {
718 // HT processor could be installed on a system which doesn't support HT.
719 _features &= ~CPU_HT;
720 }
721
722 if (is_intel()) { // Intel cpus specific settings
723 if (is_knights_family()) {
724 _features &= ~CPU_VZEROUPPER;
725 }
726 }
727
728 if (FLAG_IS_DEFAULT(IntelJccErratumMitigation)) {
729 _has_intel_jcc_erratum = compute_has_intel_jcc_erratum();
730 } else {
731 _has_intel_jcc_erratum = IntelJccErratumMitigation;
732 }
733
734 char buf[512];
735 int res = jio_snprintf(buf, sizeof(buf),
736 "(%u cores per cpu, %u threads per core) family %d model %d stepping %d"
737 "%s%s%s%s%s%s%s%s%s%s" "%s%s%s%s%s%s%s%s%s%s" "%s%s%s%s%s%s%s%s%s%s" "%s%s%s%s%s%s%s%s%s%s" "%s%s%s%s%s%s",
738
739 cores_per_cpu(), threads_per_core(),
740 cpu_family(), _model, _stepping,
741
742 (supports_cmov() ? ", cmov" : ""),
743 (supports_cmpxchg8() ? ", cx8" : ""),
744 (supports_fxsr() ? ", fxsr" : ""),
745 (supports_mmx() ? ", mmx" : ""),
746 (supports_sse() ? ", sse" : ""),
747 (supports_sse2() ? ", sse2" : ""),
748 (supports_sse3() ? ", sse3" : ""),
749 (supports_ssse3()? ", ssse3": ""),
750 (supports_sse4_1() ? ", sse4.1" : ""),
751 (supports_sse4_2() ? ", sse4.2" : ""),
752
753 (supports_popcnt() ? ", popcnt" : ""),
754 (supports_vzeroupper() ? ", vzeroupper" : ""),
755 (supports_avx() ? ", avx" : ""),
756 (supports_avx2() ? ", avx2" : ""),
757 (supports_aes() ? ", aes" : ""),
758 (supports_clmul() ? ", clmul" : ""),
759 (supports_erms() ? ", erms" : ""),
760 (supports_rtm() ? ", rtm" : ""),
|
716
717 if (logical_processors_per_package() == 1) {
718 // HT processor could be installed on a system which doesn't support HT.
719 _features &= ~CPU_HT;
720 }
721
722 if (is_intel()) { // Intel cpus specific settings
723 if (is_knights_family()) {
724 _features &= ~CPU_VZEROUPPER;
725 }
726 }
727
728 if (FLAG_IS_DEFAULT(IntelJccErratumMitigation)) {
729 _has_intel_jcc_erratum = compute_has_intel_jcc_erratum();
730 } else {
731 _has_intel_jcc_erratum = IntelJccErratumMitigation;
732 }
733
734 char buf[512];
735 int res = jio_snprintf(buf, sizeof(buf),
736 "(%u cores per cpu, %u threads per core) family %d model %d stepping %d microcode 0x%x"
737 "%s%s%s%s%s%s%s%s%s%s" "%s%s%s%s%s%s%s%s%s%s" "%s%s%s%s%s%s%s%s%s%s" "%s%s%s%s%s%s%s%s%s%s" "%s%s%s%s%s%s",
738
739 cores_per_cpu(), threads_per_core(),
740 cpu_family(), _model, _stepping, os::cpu_microcode_revision(),
741
742 (supports_cmov() ? ", cmov" : ""),
743 (supports_cmpxchg8() ? ", cx8" : ""),
744 (supports_fxsr() ? ", fxsr" : ""),
745 (supports_mmx() ? ", mmx" : ""),
746 (supports_sse() ? ", sse" : ""),
747 (supports_sse2() ? ", sse2" : ""),
748 (supports_sse3() ? ", sse3" : ""),
749 (supports_ssse3()? ", ssse3": ""),
750 (supports_sse4_1() ? ", sse4.1" : ""),
751 (supports_sse4_2() ? ", sse4.2" : ""),
752
753 (supports_popcnt() ? ", popcnt" : ""),
754 (supports_vzeroupper() ? ", vzeroupper" : ""),
755 (supports_avx() ? ", avx" : ""),
756 (supports_avx2() ? ", avx2" : ""),
757 (supports_aes() ? ", aes" : ""),
758 (supports_clmul() ? ", clmul" : ""),
759 (supports_erms() ? ", erms" : ""),
760 (supports_rtm() ? ", rtm" : ""),
|