JDK14/Java14源码在线阅读
/*
* Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2016, 2019 SAP SE. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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#ifndef CPU_S390_VM_VERSION_S390_HPP
#define CPU_S390_VM_VERSION_S390_HPP
#include "runtime/abstract_vm_version.hpp"
#include "runtime/globals_extension.hpp"
class VM_Version: public Abstract_VM_Version {
protected:
// The following list contains the (approximate) announcement/availability
// dates of the many System z generations in existence as of now which
// implement the z/Architecture.
// z900: 2000-10
// z990: 2003-06
// z9: 2005-09
// z10: 2007-04
// z10: 2008-02
// z196: 2010-08
// ec12: 2012-09
// z13: 2015-03
//
// z/Architecture is the name of the 64-bit extension of the 31-bit s390
// architecture.
//
// ----------------------------------------------
// --- FeatureBitString Bits 0.. 63 (DW[0]) ---
// ----------------------------------------------
// 11222334445566
// 04826048260482604
#define StoreFacilityListExtendedMask 0x0100000000000000UL // z9
#define ETF2Mask 0x0000800000000000UL // z900
#define CryptoFacilityMask 0x0000400000000000UL // z990
#define LongDispFacilityMask 0x0000200000000000UL // z900 with microcode update
#define LongDispFacilityHighPerfMask 0x0000300000000000UL // z990
#define HFPMultiplyAndAddMask 0x0000080000000000UL // z990
#define ExtImmedFacilityMask 0x0000040000000000UL // z9
#define ETF3Mask 0x0000020000000000UL // z990/z9 (?)
#define HFPUnnormalizedMask 0x0000010000000000UL // z9
#define ETF2EnhancementMask 0x0000008000000000UL // z9
#define StoreClockFastMask 0x0000004000000000UL // z9
#define ParsingEnhancementsMask 0x0000002000000000UL // z10(?)
#define ETF3EnhancementMask 0x0000000200000000UL // z9
#define ExtractCPUTimeMask 0x0000000100000000UL // z10
#define CompareSwapStoreMask 0x00000000c0000000UL // z10
#define GnrlInstrExtFacilityMask 0x0000000020000000UL // z10
#define ExecuteExtensionsMask 0x0000000010000000UL // z10
#define FPExtensionsMask 0x0000000004000000UL // z196
#define FPSupportEnhancementsMask 0x0000000000400000UL // z10
#define DecimalFloatingPointMask 0x0000000000300000UL // z10
// z196 begin
#define DistinctOpndsMask 0x0000000000040000UL // z196
#define FastBCRSerializationMask DistinctOpndsMask
#define HighWordMask DistinctOpndsMask
#define LoadStoreConditionalMask DistinctOpndsMask
#define PopulationCountMask DistinctOpndsMask
#define InterlockedAccess1Mask DistinctOpndsMask
// z196 end
// EC12 begin
#define DFPZonedConversionMask 0x0000000000008000UL // ec12
#define MiscInstrExtMask 0x0000000000004000UL // ec12
#define ExecutionHintMask MiscInstrExtMask
#define LoadAndTrapMask MiscInstrExtMask
#define ProcessorAssistMask MiscInstrExtMask
#define ConstrainedTxExecutionMask 0x0000000000002000UL // ec12
#define InterlockedAccess2Mask 0x0000000000000800UL // ec12
// EC12 end
// z13 begin
#define LoadStoreConditional2Mask 0x0000000000000400UL // z13
#define CryptoExtension5Mask 0x0000000000000040UL // z13
// z13 end
// Feature-DW[0] starts to fill up. Use of these masks is risky.
#define TestFeature1ImplMask 0x0000000000000001UL
#define TestFeature2ImplMask 0x0000000000000002UL
#define TestFeature4ImplMask 0x0000000000000004UL
#define TestFeature8ImplMask 0x0000000000000008UL
// ----------------------------------------------
// --- FeatureBitString Bits 64..127 (DW[1]) ---
// ----------------------------------------------
// 11111111
// 66778889900011222
// 48260482604826048
#define TransactionalExecutionMask 0x0040000000000000UL // ec12
#define CryptoExtension3Mask 0x0008000000000000UL // z196
#define CryptoExtension4Mask 0x0004000000000000UL // z196
#define DFPPackedConversionMask 0x0000800000000000UL // z13
// ----------------------------------------------
// --- FeatureBitString Bits 128..192 (DW[2]) ---
// ----------------------------------------------
// 11111111111111111
// 23344455666778889
// 82604826048260482
#define VectorFacilityMask 0x4000000000000000UL // z13, not avail in VM guest mode!
enum {
_max_cache_levels = 8, // As limited by ECAG instruction.
_features_buffer_len = 4, // in DW
_code_buffer_len = 2*256 // For feature detection code.
};
static unsigned long _features[_features_buffer_len];
static unsigned long _cipher_features[_features_buffer_len];
static unsigned long _msgdigest_features[_features_buffer_len];
static unsigned int _nfeatures;
static unsigned int _ncipher_features;
static unsigned int _nmsgdigest_features;
static unsigned int _Dcache_lineSize;
static unsigned int _Icache_lineSize;
static bool _is_determine_features_test_running;
static const char* _model_string;
static bool test_feature_bit(unsigned long* featureBuffer, int featureNum, unsigned int bufLen);
static void set_features_string();
static void print_features_internal(const char* text, bool print_anyway=false);
static void determine_features();
static long call_getFeatures(unsigned long* buffer, int buflen, int functionCode);
static void set_getFeatures(address entryPoint);
static int calculate_ECAG_functionCode(unsigned int attributeIndication,
unsigned int levelIndication,
unsigned int typeIndication);
// Setting features via march=z900|z990|z9|z10|z196|ec12|z13|ztest commandline option.
static void reset_features(bool reset);
static void set_features_z900(bool reset = true);
static void set_features_z990(bool reset = true);
static void set_features_z9(bool reset = true);
static void set_features_z10(bool reset = true);
static void set_features_z196(bool reset = true);
static void set_features_ec12(bool reset = true);
static void set_features_z13(bool reset = true);
static void set_features_from(const char* march);
// Get the CPU type from feature bit settings.
static bool is_z900() { return has_long_displacement() && !has_long_displacement_fast(); }
static bool is_z990() { return has_long_displacement_fast() && !has_extended_immediate(); }
static bool is_z9() { return has_extended_immediate() && !has_GnrlInstrExtensions(); }
static bool is_z10() { return has_GnrlInstrExtensions() && !has_DistinctOpnds(); }
static bool is_z196() { return has_DistinctOpnds() && !has_MiscInstrExt(); }
static bool is_ec12() { return has_MiscInstrExt() && !has_CryptoExt5(); }
static bool is_z13() { return has_CryptoExt5();}
// Get information about cache line sizes.
// As of now and the foreseeable future, line size of all levels will be the same and 256.
static unsigned int Dcache_lineSize(unsigned int level = 0) { return _Dcache_lineSize; }
static unsigned int Icache_lineSize(unsigned int level = 0) { return _Icache_lineSize; }
public:
// Need to use nested class with unscoped enum.
// C++11 declaration "enum class Cipher { ... } is not supported.
class CipherMode {
public:
enum {
cipher = 0x00,
decipher = 0x80
};
};
class Cipher {
public:
enum { // KM only!!! KMC uses different parmBlk sizes.
_Query = 0,
_DEA = 1,
_TDEA128 = 2,
_TDEA192 = 3,
_EncryptedDEA = 9,
_EncryptedDEA128 = 10,
_EncryptedDEA192 = 11,
_AES128 = 18,
_AES192 = 19,
_AES256 = 20,
_EnccryptedAES128 = 26,
_EnccryptedAES192 = 27,
_EnccryptedAES256 = 28,
_XTSAES128 = 50,
_XTSAES256 = 52,
_EncryptedXTSAES128 = 58,
_EncryptedXTSAES256 = 60,
_PRNG = 67,
_featureBits = 128,
// Parameter block sizes (in bytes) for KM instruction.
_Query_parmBlk = 16,
_DEA_parmBlk = 8,
_TDEA128_parmBlk = 16,
_TDEA192_parmBlk = 24,
_EncryptedDEA_parmBlk = 32,
_EncryptedDEA128_parmBlk = 40,
_EncryptedDEA192_parmBlk = 48,
_AES128_parmBlk = 16,
_AES192_parmBlk = 24,
_AES256_parmBlk = 32,
_EnccryptedAES128_parmBlk = 48,
_EnccryptedAES192_parmBlk = 56,
_EnccryptedAES256_parmBlk = 64,
_XTSAES128_parmBlk = 32,
_XTSAES256_parmBlk = 48,
_EncryptedXTSAES128_parmBlk = 64,
_EncryptedXTSAES256_parmBlk = 80,
// Parameter block sizes (in bytes) for KMC instruction.
_Query_parmBlk_C = 16,
_DEA_parmBlk_C = 16,
_TDEA128_parmBlk_C = 24,
_TDEA192_parmBlk_C = 32,
_EncryptedDEA_parmBlk_C = 40,
_EncryptedDEA128_parmBlk_C = 48,
_EncryptedDEA192_parmBlk_C = 56,
_AES128_parmBlk_C = 32,
_AES192_parmBlk_C = 40,
_AES256_parmBlk_C = 48,
_EnccryptedAES128_parmBlk_C = 64,
_EnccryptedAES192_parmBlk_C = 72,
_EnccryptedAES256_parmBlk_C = 80,
_XTSAES128_parmBlk_C = 32,
_XTSAES256_parmBlk_C = 48,
_EncryptedXTSAES128_parmBlk_C = 64,
_EncryptedXTSAES256_parmBlk_C = 80,
_PRNG_parmBlk_C = 32,
// Data block sizes (in bytes).
_Query_dataBlk = 0,
_DEA_dataBlk = 8,
_TDEA128_dataBlk = 8,
_TDEA192_dataBlk = 8,
_EncryptedDEA_dataBlk = 8,
_EncryptedDEA128_dataBlk = 8,
_EncryptedDEA192_dataBlk = 8,
_AES128_dataBlk = 16,
_AES192_dataBlk = 16,
_AES256_dataBlk = 16,
_EnccryptedAES128_dataBlk = 16,
_EnccryptedAES192_dataBlk = 16,
_EnccryptedAES256_dataBlk = 16,
_XTSAES128_dataBlk = 16,
_XTSAES256_dataBlk = 16,
_EncryptedXTSAES128_dataBlk = 16,
_EncryptedXTSAES256_dataBlk = 16,
_PRNG_dataBlk = 8,
};
};
class MsgDigest {
public:
enum {
_Query = 0,
_SHA1 = 1,
_SHA256 = 2,
_SHA512 = 3,
_GHASH = 65,
_featureBits = 128,
// Parameter block sizes (in bytes) for KIMD.
_Query_parmBlk_I = 16,
_SHA1_parmBlk_I = 20,
_SHA256_parmBlk_I = 32,
_SHA512_parmBlk_I = 64,
_GHASH_parmBlk_I = 32,
// Parameter block sizes (in bytes) for KLMD.
_Query_parmBlk_L = 16,
_SHA1_parmBlk_L = 28,
_SHA256_parmBlk_L = 40,
_SHA512_parmBlk_L = 80,
// Data block sizes (in bytes).
_Query_dataBlk = 0,
_SHA1_dataBlk = 64,
_SHA256_dataBlk = 64,
_SHA512_dataBlk = 128,
_GHASH_dataBlk = 16
};
};
class MsgAuthent {
public:
enum {
_Query = 0,
_DEA = 1,
_TDEA128 = 2,
_TDEA192 = 3,
_EncryptedDEA = 9,
_EncryptedDEA128 = 10,
_EncryptedDEA192 = 11,
_AES128 = 18,
_AES192 = 19,
_AES256 = 20,
_EnccryptedAES128 = 26,
_EnccryptedAES192 = 27,
_EnccryptedAES256 = 28,
_featureBits = 128,
_Query_parmBlk = 16,
_DEA_parmBlk = 16,
_TDEA128_parmBlk = 24,
_TDEA192_parmBlk = 32,
_EncryptedDEA_parmBlk = 40,
_EncryptedDEA128_parmBlk = 48,
_EncryptedDEA192_parmBlk = 56,
_AES128_parmBlk = 32,
_AES192_parmBlk = 40,
_AES256_parmBlk = 48,
_EnccryptedAES128_parmBlk = 64,
_EnccryptedAES192_parmBlk = 72,
_EnccryptedAES256_parmBlk = 80,
_Query_dataBlk = 0,
_DEA_dataBlk = 8,
_TDEA128_dataBlk = 8,
_TDEA192_dataBlk = 8,
_EncryptedDEA_dataBlk = 8,
_EncryptedDEA128_dataBlk = 8,
_EncryptedDEA192_dataBlk = 8,
_AES128_dataBlk = 16,
_AES192_dataBlk = 16,
_AES256_dataBlk = 16,
_EnccryptedAES128_dataBlk = 16,
_EnccryptedAES192_dataBlk = 16,
_EnccryptedAES256_dataBlk = 16
};
};
// Initialization
static void initialize();
static void print_features();
static bool is_determine_features_test_running() { return _is_determine_features_test_running; }
// Override Abstract_VM_Version implementation
static void print_platform_virtualization_info(outputStream*);
// s390 supports fast class initialization checks for static methods.
static bool supports_fast_class_init_checks() { return true; }
// CPU feature query functions
static const char* get_model_string() { return _model_string; }
static bool has_StoreFacilityListExtended() { return (_features[0] & StoreFacilityListExtendedMask) == StoreFacilityListExtendedMask; }
static bool has_Crypto() { return (_features[0] & CryptoFacilityMask) == CryptoFacilityMask; }
static bool has_ETF2() { return (_features[0] & ETF2Mask) == ETF2Mask; }
static bool has_ETF3() { return (_features[0] & ETF3Mask) == ETF3Mask; }
static bool has_ETF2Enhancements() { return (_features[0] & ETF2EnhancementMask) == ETF2EnhancementMask; }
static bool has_ETF3Enhancements() { return (_features[0] & ETF3EnhancementMask) == ETF3EnhancementMask; }
static bool has_ParsingEnhancements() { return (_features[0] & ParsingEnhancementsMask) == ParsingEnhancementsMask; }
static bool has_long_displacement() { return (_features[0] & LongDispFacilityMask) == LongDispFacilityMask; }
static bool has_long_displacement_fast() { return (_features[0] & LongDispFacilityHighPerfMask) == LongDispFacilityHighPerfMask; }
static bool has_extended_immediate() { return (_features[0] & ExtImmedFacilityMask) == ExtImmedFacilityMask; }
static bool has_StoreClockFast() { return (_features[0] & StoreClockFastMask) == StoreClockFastMask; }
static bool has_ExtractCPUtime() { return (_features[0] & ExtractCPUTimeMask) == ExtractCPUTimeMask; }
static bool has_CompareSwapStore() { return (_features[0] & CompareSwapStoreMask) == CompareSwapStoreMask; }
static bool has_HFPMultiplyAndAdd() { return (_features[0] & HFPMultiplyAndAddMask) == HFPMultiplyAndAddMask; }
static bool has_HFPUnnormalized() { return (_features[0] & HFPUnnormalizedMask) == HFPUnnormalizedMask; }
// Make sure we don't run on older ...
static bool has_GnrlInstrExtensions() { guarantee((_features[0] & GnrlInstrExtFacilityMask) == GnrlInstrExtFacilityMask, "We no more support older than z10."); return true; }
static bool has_CompareBranch() { return has_GnrlInstrExtensions() && is_z10(); } // Only z10 benefits from these.
static bool has_CompareTrap() { return has_GnrlInstrExtensions(); }
static bool has_RelativeLoadStore() { return has_GnrlInstrExtensions(); }
static bool has_MultiplySingleImm32() { return has_GnrlInstrExtensions(); }
static bool has_Prefetch() { return has_GnrlInstrExtensions() && (AllocatePrefetchStyle > 0); }
static bool has_PrefetchRaw() { return has_GnrlInstrExtensions(); }
static bool has_MoveImmToMem() { return has_GnrlInstrExtensions(); }
static bool has_ExtractCPUAttributes() { return has_GnrlInstrExtensions(); }
static bool has_ExecuteExtensions() { return (_features[0] & ExecuteExtensionsMask) == ExecuteExtensionsMask; }
// Memory-immediate arithmetic instructions. There is no performance penalty in using them.
// Moreover, these memory-immediate instructions are quasi-atomic (>99.99%) on z10
// and 100% atomic from z196 onwards, thanks to the specific operand serialization that comes new with z196.
static bool has_MemWithImmALUOps() { return has_GnrlInstrExtensions(); }
static bool has_AtomicMemWithImmALUOps() { return has_MemWithImmALUOps() && has_InterlockedAccessV1(); }
static bool has_FPExtensions() { return (_features[0] & FPExtensionsMask) == FPExtensionsMask; }
static bool has_FPSupportEnhancements() { return (_features[0] & FPSupportEnhancementsMask) == FPSupportEnhancementsMask; }
static bool has_DecimalFloatingPoint() { return (_features[0] & DecimalFloatingPointMask) == DecimalFloatingPointMask; }
static bool has_InterlockedAccessV1() { return (_features[0] & InterlockedAccess1Mask) == InterlockedAccess1Mask; }
static bool has_LoadAndALUAtomicV1() { return (_features[0] & InterlockedAccess1Mask) == InterlockedAccess1Mask; }
static bool has_PopCount() { return (_features[0] & PopulationCountMask) == PopulationCountMask; }
static bool has_LoadStoreConditional() { return (_features[0] & LoadStoreConditionalMask) == LoadStoreConditionalMask; }
static bool has_HighWordInstr() { return (_features[0] & HighWordMask) == HighWordMask; }
static bool has_FastSync() { return (_features[0] & FastBCRSerializationMask) == FastBCRSerializationMask; }
static bool has_DistinctOpnds() { return (_features[0] & DistinctOpndsMask) == DistinctOpndsMask; }
static bool has_CryptoExt3() { return (_features[1] & CryptoExtension3Mask) == CryptoExtension3Mask; }
static bool has_CryptoExt4() { return (_features[1] & CryptoExtension4Mask) == CryptoExtension4Mask; }
static bool has_DFPZonedConversion() { return (_features[0] & DFPZonedConversionMask) == DFPZonedConversionMask; }
static bool has_DFPPackedConversion() { return (_features[1] & DFPPackedConversionMask) == DFPPackedConversionMask; }
static bool has_MiscInstrExt() { return (_features[0] & MiscInstrExtMask) == MiscInstrExtMask; }
static bool has_ExecutionHint() { return (_features[0] & ExecutionHintMask) == ExecutionHintMask; }
static bool has_LoadAndTrap() { return (_features[0] & LoadAndTrapMask) == LoadAndTrapMask; }
static bool has_ProcessorAssist() { return (_features[0] & ProcessorAssistMask) == ProcessorAssistMask; }
static bool has_InterlockedAccessV2() { return (_features[0] & InterlockedAccess2Mask) == InterlockedAccess2Mask; }
static bool has_LoadAndALUAtomicV2() { return (_features[0] & InterlockedAccess2Mask) == InterlockedAccess2Mask; }
static bool has_TxMem() { return ((_features[1] & TransactionalExecutionMask) == TransactionalExecutionMask) &&
((_features[0] & ConstrainedTxExecutionMask) == ConstrainedTxExecutionMask); }
static bool has_CryptoExt5() { return (_features[0] & CryptoExtension5Mask) == CryptoExtension5Mask; }
static bool has_LoadStoreConditional2() { return (_features[0] & LoadStoreConditional2Mask) == LoadStoreConditional2Mask; }
static bool has_VectorFacility() { return (_features[2] & VectorFacilityMask) == VectorFacilityMask; }
static bool has_TestFeatureImpl() { return (_features[0] & TestFeature1ImplMask) == TestFeature1ImplMask; }
static bool has_TestFeature1Impl() { return (_features[0] & TestFeature1ImplMask) == TestFeature1ImplMask; }
static bool has_TestFeature2Impl() { return (_features[0] & TestFeature2ImplMask) == TestFeature2ImplMask; }
static bool has_TestFeature4Impl() { return (_features[0] & TestFeature4ImplMask) == TestFeature4ImplMask; }
static bool has_TestFeature8Impl() { return (_features[0] & TestFeature8ImplMask) == TestFeature8ImplMask; }
static bool has_TestFeaturesImpl() { return has_TestFeature1Impl() || has_TestFeature2Impl() || has_TestFeature4Impl() || has_TestFeature8Impl(); }
// Crypto features query functions.
static bool has_Crypto_AES128() { return has_Crypto() && test_feature_bit(&_cipher_features[0], Cipher::_AES128, Cipher::_featureBits); }
static bool has_Crypto_AES192() { return has_Crypto() && test_feature_bit(&_cipher_features[0], Cipher::_AES192, Cipher::_featureBits); }
static bool has_Crypto_AES256() { return has_Crypto() && test_feature_bit(&_cipher_features[0], Cipher::_AES256, Cipher::_featureBits); }
static bool has_Crypto_AES() { return has_Crypto_AES128() || has_Crypto_AES192() || has_Crypto_AES256(); }
static bool has_Crypto_SHA1() { return has_Crypto() && test_feature_bit(&_msgdigest_features[0], MsgDigest::_SHA1, MsgDigest::_featureBits); }
static bool has_Crypto_SHA256() { return has_Crypto() && test_feature_bit(&_msgdigest_features[0], MsgDigest::_SHA256, MsgDigest::_featureBits); }
static bool has_Crypto_SHA512() { return has_Crypto() && test_feature_bit(&_msgdigest_features[0], MsgDigest::_SHA512, MsgDigest::_featureBits); }
static bool has_Crypto_GHASH() { return has_Crypto() && test_feature_bit(&_msgdigest_features[0], MsgDigest::_GHASH, MsgDigest::_featureBits); }
static bool has_Crypto_SHA() { return has_Crypto_SHA1() || has_Crypto_SHA256() || has_Crypto_SHA512() || has_Crypto_GHASH(); }
// CPU feature setters (to force model-specific behaviour). Test/debugging only.
static void set_has_TestFeature1Impl() { _features[0] |= TestFeature1ImplMask; }
static void set_has_TestFeature2Impl() { _features[0] |= TestFeature2ImplMask; }
static void set_has_TestFeature4Impl() { _features[0] |= TestFeature4ImplMask; }
static void set_has_TestFeature8Impl() { _features[0] |= TestFeature8ImplMask; }
static void set_has_DecimalFloatingPoint() { _features[0] |= DecimalFloatingPointMask; }
static void set_has_FPSupportEnhancements() { _features[0] |= FPSupportEnhancementsMask; }
static void set_has_ExecuteExtensions() { _features[0] |= ExecuteExtensionsMask; }
static void set_has_MemWithImmALUOps() { _features[0] |= GnrlInstrExtFacilityMask; }
static void set_has_MoveImmToMem() { _features[0] |= GnrlInstrExtFacilityMask; }
static void set_has_Prefetch() { _features[0] |= GnrlInstrExtFacilityMask; }
static void set_has_MultiplySingleImm32() { _features[0] |= GnrlInstrExtFacilityMask; }
static void set_has_CompareBranch() { _features[0] |= GnrlInstrExtFacilityMask; }
static void set_has_CompareTrap() { _features[0] |= GnrlInstrExtFacilityMask; }
static void set_has_RelativeLoadStore() { _features[0] |= GnrlInstrExtFacilityMask; }
static void set_has_GnrlInstrExtensions() { _features[0] |= GnrlInstrExtFacilityMask; }
static void set_has_CompareSwapStore() { _features[0] |= CompareSwapStoreMask; }
static void set_has_HFPMultiplyAndAdd() { _features[0] |= HFPMultiplyAndAddMask; }
static void set_has_HFPUnnormalized() { _features[0] |= HFPUnnormalizedMask; }
static void set_has_ExtractCPUtime() { _features[0] |= ExtractCPUTimeMask; }
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