--- a/hotspot/src/cpu/x86/vm/stubGenerator_x86_32.cpp Tue Oct 23 13:06:37 2012 -0700
+++ b/hotspot/src/cpu/x86/vm/stubGenerator_x86_32.cpp Wed Oct 24 14:33:22 2012 -0700
@@ -2137,6 +2137,529 @@
}
}
+ // AES intrinsic stubs
+ enum {AESBlockSize = 16};
+
+ address generate_key_shuffle_mask() {
+ __ align(16);
+ StubCodeMark mark(this, "StubRoutines", "key_shuffle_mask");
+ address start = __ pc();
+ __ emit_data(0x00010203, relocInfo::none, 0 );
+ __ emit_data(0x04050607, relocInfo::none, 0 );
+ __ emit_data(0x08090a0b, relocInfo::none, 0 );
+ __ emit_data(0x0c0d0e0f, relocInfo::none, 0 );
+ return start;
+ }
+
+ // Utility routine for loading a 128-bit key word in little endian format
+ // can optionally specify that the shuffle mask is already in an xmmregister
+ void load_key(XMMRegister xmmdst, Register key, int offset, XMMRegister xmm_shuf_mask=NULL) {
+ __ movdqu(xmmdst, Address(key, offset));
+ if (xmm_shuf_mask != NULL) {
+ __ pshufb(xmmdst, xmm_shuf_mask);
+ } else {
+ __ pshufb(xmmdst, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr()));
+ }
+ }
+
+ // aesenc using specified key+offset
+ // can optionally specify that the shuffle mask is already in an xmmregister
+ void aes_enc_key(XMMRegister xmmdst, XMMRegister xmmtmp, Register key, int offset, XMMRegister xmm_shuf_mask=NULL) {
+ load_key(xmmtmp, key, offset, xmm_shuf_mask);
+ __ aesenc(xmmdst, xmmtmp);
+ }
+
+ // aesdec using specified key+offset
+ // can optionally specify that the shuffle mask is already in an xmmregister
+ void aes_dec_key(XMMRegister xmmdst, XMMRegister xmmtmp, Register key, int offset, XMMRegister xmm_shuf_mask=NULL) {
+ load_key(xmmtmp, key, offset, xmm_shuf_mask);
+ __ aesdec(xmmdst, xmmtmp);
+ }
+
+
+ // Arguments:
+ //
+ // Inputs:
+ // c_rarg0 - source byte array address
+ // c_rarg1 - destination byte array address
+ // c_rarg2 - K (key) in little endian int array
+ //
+ address generate_aescrypt_encryptBlock() {
+ assert(UseAES && (UseAVX > 0), "need AES instructions and misaligned SSE support");
+ __ align(CodeEntryAlignment);
+ StubCodeMark mark(this, "StubRoutines", "aescrypt_encryptBlock");
+ Label L_doLast;
+ address start = __ pc();
+
+ const Register from = rsi; // source array address
+ const Register to = rdx; // destination array address
+ const Register key = rcx; // key array address
+ const Register keylen = rax;
+ const Address from_param(rbp, 8+0);
+ const Address to_param (rbp, 8+4);
+ const Address key_param (rbp, 8+8);
+
+ const XMMRegister xmm_result = xmm0;
+ const XMMRegister xmm_temp = xmm1;
+ const XMMRegister xmm_key_shuf_mask = xmm2;
+
+ __ enter(); // required for proper stackwalking of RuntimeStub frame
+ __ push(rsi);
+ __ movptr(from , from_param);
+ __ movptr(to , to_param);
+ __ movptr(key , key_param);
+
+ __ movl(keylen, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT)));
+ // keylen = # of 32-bit words, convert to 128-bit words
+ __ shrl(keylen, 2);
+ __ subl(keylen, 11); // every key has at least 11 128-bit words, some have more
+
+ __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr()));
+ __ movdqu(xmm_result, Address(from, 0)); // get 16 bytes of input
+
+ // For encryption, the java expanded key ordering is just what we need
+
+ load_key(xmm_temp, key, 0x00, xmm_key_shuf_mask);
+ __ pxor(xmm_result, xmm_temp);
+ for (int offset = 0x10; offset <= 0x90; offset += 0x10) {
+ aes_enc_key(xmm_result, xmm_temp, key, offset, xmm_key_shuf_mask);
+ }
+ load_key (xmm_temp, key, 0xa0, xmm_key_shuf_mask);
+ __ cmpl(keylen, 0);
+ __ jcc(Assembler::equal, L_doLast);
+ __ aesenc(xmm_result, xmm_temp); // only in 192 and 256 bit keys
+ aes_enc_key(xmm_result, xmm_temp, key, 0xb0, xmm_key_shuf_mask);
+ load_key(xmm_temp, key, 0xc0, xmm_key_shuf_mask);
+ __ subl(keylen, 2);
+ __ jcc(Assembler::equal, L_doLast);
+ __ aesenc(xmm_result, xmm_temp); // only in 256 bit keys
+ aes_enc_key(xmm_result, xmm_temp, key, 0xd0, xmm_key_shuf_mask);
+ load_key(xmm_temp, key, 0xe0, xmm_key_shuf_mask);
+
+ __ BIND(L_doLast);
+ __ aesenclast(xmm_result, xmm_temp);
+ __ movdqu(Address(to, 0), xmm_result); // store the result
+ __ xorptr(rax, rax); // return 0
+ __ pop(rsi);
+ __ leave(); // required for proper stackwalking of RuntimeStub frame
+ __ ret(0);
+
+ return start;
+ }
+
+
+ // Arguments:
+ //
+ // Inputs:
+ // c_rarg0 - source byte array address
+ // c_rarg1 - destination byte array address
+ // c_rarg2 - K (key) in little endian int array
+ //
+ address generate_aescrypt_decryptBlock() {
+ assert(UseAES && (UseAVX > 0), "need AES instructions and misaligned SSE support");
+ __ align(CodeEntryAlignment);
+ StubCodeMark mark(this, "StubRoutines", "aescrypt_decryptBlock");
+ Label L_doLast;
+ address start = __ pc();
+
+ const Register from = rsi; // source array address
+ const Register to = rdx; // destination array address
+ const Register key = rcx; // key array address
+ const Register keylen = rax;
+ const Address from_param(rbp, 8+0);
+ const Address to_param (rbp, 8+4);
+ const Address key_param (rbp, 8+8);
+
+ const XMMRegister xmm_result = xmm0;
+ const XMMRegister xmm_temp = xmm1;
+ const XMMRegister xmm_key_shuf_mask = xmm2;
+
+ __ enter(); // required for proper stackwalking of RuntimeStub frame
+ __ push(rsi);
+ __ movptr(from , from_param);
+ __ movptr(to , to_param);
+ __ movptr(key , key_param);
+
+ __ movl(keylen, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT)));
+ // keylen = # of 32-bit words, convert to 128-bit words
+ __ shrl(keylen, 2);
+ __ subl(keylen, 11); // every key has at least 11 128-bit words, some have more
+
+ __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr()));
+ __ movdqu(xmm_result, Address(from, 0));
+
+ // for decryption java expanded key ordering is rotated one position from what we want
+ // so we start from 0x10 here and hit 0x00 last
+ // we don't know if the key is aligned, hence not using load-execute form
+ load_key(xmm_temp, key, 0x10, xmm_key_shuf_mask);
+ __ pxor (xmm_result, xmm_temp);
+ for (int offset = 0x20; offset <= 0xa0; offset += 0x10) {
+ aes_dec_key(xmm_result, xmm_temp, key, offset, xmm_key_shuf_mask);
+ }
+ __ cmpl(keylen, 0);
+ __ jcc(Assembler::equal, L_doLast);
+ // only in 192 and 256 bit keys
+ aes_dec_key(xmm_result, xmm_temp, key, 0xb0, xmm_key_shuf_mask);
+ aes_dec_key(xmm_result, xmm_temp, key, 0xc0, xmm_key_shuf_mask);
+ __ subl(keylen, 2);
+ __ jcc(Assembler::equal, L_doLast);
+ // only in 256 bit keys
+ aes_dec_key(xmm_result, xmm_temp, key, 0xd0, xmm_key_shuf_mask);
+ aes_dec_key(xmm_result, xmm_temp, key, 0xe0, xmm_key_shuf_mask);
+
+ __ BIND(L_doLast);
+ // for decryption the aesdeclast operation is always on key+0x00
+ load_key(xmm_temp, key, 0x00, xmm_key_shuf_mask);
+ __ aesdeclast(xmm_result, xmm_temp);
+
+ __ movdqu(Address(to, 0), xmm_result); // store the result
+
+ __ xorptr(rax, rax); // return 0
+ __ pop(rsi);
+ __ leave(); // required for proper stackwalking of RuntimeStub frame
+ __ ret(0);
+
+ return start;
+ }
+
+ void handleSOERegisters(bool saving) {
+ const int saveFrameSizeInBytes = 4 * wordSize;
+ const Address saved_rbx (rbp, -3 * wordSize);
+ const Address saved_rsi (rbp, -2 * wordSize);
+ const Address saved_rdi (rbp, -1 * wordSize);
+
+ if (saving) {
+ __ subptr(rsp, saveFrameSizeInBytes);
+ __ movptr(saved_rsi, rsi);
+ __ movptr(saved_rdi, rdi);
+ __ movptr(saved_rbx, rbx);
+ } else {
+ // restoring
+ __ movptr(rsi, saved_rsi);
+ __ movptr(rdi, saved_rdi);
+ __ movptr(rbx, saved_rbx);
+ }
+ }
+
+ // Arguments:
+ //
+ // Inputs:
+ // c_rarg0 - source byte array address
+ // c_rarg1 - destination byte array address
+ // c_rarg2 - K (key) in little endian int array
+ // c_rarg3 - r vector byte array address
+ // c_rarg4 - input length
+ //
+ address generate_cipherBlockChaining_encryptAESCrypt() {
+ assert(UseAES && (UseAVX > 0), "need AES instructions and misaligned SSE support");
+ __ align(CodeEntryAlignment);
+ StubCodeMark mark(this, "StubRoutines", "cipherBlockChaining_encryptAESCrypt");
+ address start = __ pc();
+
+ Label L_exit, L_key_192_256, L_key_256, L_loopTop_128, L_loopTop_192, L_loopTop_256;
+ const Register from = rsi; // source array address
+ const Register to = rdx; // destination array address
+ const Register key = rcx; // key array address
+ const Register rvec = rdi; // r byte array initialized from initvector array address
+ // and left with the results of the last encryption block
+ const Register len_reg = rbx; // src len (must be multiple of blocksize 16)
+ const Register pos = rax;
+
+ // xmm register assignments for the loops below
+ const XMMRegister xmm_result = xmm0;
+ const XMMRegister xmm_temp = xmm1;
+ // first 6 keys preloaded into xmm2-xmm7
+ const int XMM_REG_NUM_KEY_FIRST = 2;
+ const int XMM_REG_NUM_KEY_LAST = 7;
+ const XMMRegister xmm_key0 = as_XMMRegister(XMM_REG_NUM_KEY_FIRST);
+
+ __ enter(); // required for proper stackwalking of RuntimeStub frame
+ handleSOERegisters(true /*saving*/);
+
+ // load registers from incoming parameters
+ const Address from_param(rbp, 8+0);
+ const Address to_param (rbp, 8+4);
+ const Address key_param (rbp, 8+8);
+ const Address rvec_param (rbp, 8+12);
+ const Address len_param (rbp, 8+16);
+ __ movptr(from , from_param);
+ __ movptr(to , to_param);
+ __ movptr(key , key_param);
+ __ movptr(rvec , rvec_param);
+ __ movptr(len_reg , len_param);
+
+ const XMMRegister xmm_key_shuf_mask = xmm_temp; // used temporarily to swap key bytes up front
+ __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr()));
+ // load up xmm regs 2 thru 7 with keys 0-5
+ for (int rnum = XMM_REG_NUM_KEY_FIRST, offset = 0x00; rnum <= XMM_REG_NUM_KEY_LAST; rnum++) {
+ load_key(as_XMMRegister(rnum), key, offset, xmm_key_shuf_mask);
+ offset += 0x10;
+ }
+
+ __ movdqu(xmm_result, Address(rvec, 0x00)); // initialize xmm_result with r vec
+
+ // now split to different paths depending on the keylen (len in ints of AESCrypt.KLE array (52=192, or 60=256))
+ __ movl(rax, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT)));
+ __ cmpl(rax, 44);
+ __ jcc(Assembler::notEqual, L_key_192_256);
+
+ // 128 bit code follows here
+ __ movptr(pos, 0);
+ __ align(OptoLoopAlignment);
+ __ BIND(L_loopTop_128);
+ __ movdqu(xmm_temp, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of input
+ __ pxor (xmm_result, xmm_temp); // xor with the current r vector
+
+ __ pxor (xmm_result, xmm_key0); // do the aes rounds
+ for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST; rnum++) {
+ __ aesenc(xmm_result, as_XMMRegister(rnum));
+ }
+ for (int key_offset = 0x60; key_offset <= 0x90; key_offset += 0x10) {
+ aes_enc_key(xmm_result, xmm_temp, key, key_offset);
+ }
+ load_key(xmm_temp, key, 0xa0);
+ __ aesenclast(xmm_result, xmm_temp);
+
+ __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output
+ // no need to store r to memory until we exit
+ __ addptr(pos, AESBlockSize);
+ __ subptr(len_reg, AESBlockSize);
+ __ jcc(Assembler::notEqual, L_loopTop_128);
+
+ __ BIND(L_exit);
+ __ movdqu(Address(rvec, 0), xmm_result); // final value of r stored in rvec of CipherBlockChaining object
+
+ handleSOERegisters(false /*restoring*/);
+ __ movl(rax, 0); // return 0 (why?)
+ __ leave(); // required for proper stackwalking of RuntimeStub frame
+ __ ret(0);
+
+ __ BIND(L_key_192_256);
+ // here rax = len in ints of AESCrypt.KLE array (52=192, or 60=256)
+ __ cmpl(rax, 52);
+ __ jcc(Assembler::notEqual, L_key_256);
+
+ // 192-bit code follows here (could be changed to use more xmm registers)
+ __ movptr(pos, 0);
+ __ align(OptoLoopAlignment);
+ __ BIND(L_loopTop_192);
+ __ movdqu(xmm_temp, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of input
+ __ pxor (xmm_result, xmm_temp); // xor with the current r vector
+
+ __ pxor (xmm_result, xmm_key0); // do the aes rounds
+ for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST; rnum++) {
+ __ aesenc(xmm_result, as_XMMRegister(rnum));
+ }
+ for (int key_offset = 0x60; key_offset <= 0xb0; key_offset += 0x10) {
+ aes_enc_key(xmm_result, xmm_temp, key, key_offset);
+ }
+ load_key(xmm_temp, key, 0xc0);
+ __ aesenclast(xmm_result, xmm_temp);
+
+ __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output
+ // no need to store r to memory until we exit
+ __ addptr(pos, AESBlockSize);
+ __ subptr(len_reg, AESBlockSize);
+ __ jcc(Assembler::notEqual, L_loopTop_192);
+ __ jmp(L_exit);
+
+ __ BIND(L_key_256);
+ // 256-bit code follows here (could be changed to use more xmm registers)
+ __ movptr(pos, 0);
+ __ align(OptoLoopAlignment);
+ __ BIND(L_loopTop_256);
+ __ movdqu(xmm_temp, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of input
+ __ pxor (xmm_result, xmm_temp); // xor with the current r vector
+
+ __ pxor (xmm_result, xmm_key0); // do the aes rounds
+ for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST; rnum++) {
+ __ aesenc(xmm_result, as_XMMRegister(rnum));
+ }
+ for (int key_offset = 0x60; key_offset <= 0xd0; key_offset += 0x10) {
+ aes_enc_key(xmm_result, xmm_temp, key, key_offset);
+ }
+ load_key(xmm_temp, key, 0xe0);
+ __ aesenclast(xmm_result, xmm_temp);
+
+ __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output
+ // no need to store r to memory until we exit
+ __ addptr(pos, AESBlockSize);
+ __ subptr(len_reg, AESBlockSize);
+ __ jcc(Assembler::notEqual, L_loopTop_256);
+ __ jmp(L_exit);
+
+ return start;
+ }
+
+
+ // CBC AES Decryption.
+ // In 32-bit stub, because of lack of registers we do not try to parallelize 4 blocks at a time.
+ //
+ // Arguments:
+ //
+ // Inputs:
+ // c_rarg0 - source byte array address
+ // c_rarg1 - destination byte array address
+ // c_rarg2 - K (key) in little endian int array
+ // c_rarg3 - r vector byte array address
+ // c_rarg4 - input length
+ //
+
+ address generate_cipherBlockChaining_decryptAESCrypt() {
+ assert(UseAES && (UseAVX > 0), "need AES instructions and misaligned SSE support");
+ __ align(CodeEntryAlignment);
+ StubCodeMark mark(this, "StubRoutines", "cipherBlockChaining_decryptAESCrypt");
+ address start = __ pc();
+
+ Label L_exit, L_key_192_256, L_key_256;
+ Label L_singleBlock_loopTop_128;
+ Label L_singleBlock_loopTop_192, L_singleBlock_loopTop_256;
+ const Register from = rsi; // source array address
+ const Register to = rdx; // destination array address
+ const Register key = rcx; // key array address
+ const Register rvec = rdi; // r byte array initialized from initvector array address
+ // and left with the results of the last encryption block
+ const Register len_reg = rbx; // src len (must be multiple of blocksize 16)
+ const Register pos = rax;
+
+ // xmm register assignments for the loops below
+ const XMMRegister xmm_result = xmm0;
+ const XMMRegister xmm_temp = xmm1;
+ // first 6 keys preloaded into xmm2-xmm7
+ const int XMM_REG_NUM_KEY_FIRST = 2;
+ const int XMM_REG_NUM_KEY_LAST = 7;
+ const int FIRST_NON_REG_KEY_offset = 0x70;
+ const XMMRegister xmm_key_first = as_XMMRegister(XMM_REG_NUM_KEY_FIRST);
+
+ __ enter(); // required for proper stackwalking of RuntimeStub frame
+ handleSOERegisters(true /*saving*/);
+
+ // load registers from incoming parameters
+ const Address from_param(rbp, 8+0);
+ const Address to_param (rbp, 8+4);
+ const Address key_param (rbp, 8+8);
+ const Address rvec_param (rbp, 8+12);
+ const Address len_param (rbp, 8+16);
+ __ movptr(from , from_param);
+ __ movptr(to , to_param);
+ __ movptr(key , key_param);
+ __ movptr(rvec , rvec_param);
+ __ movptr(len_reg , len_param);
+
+ // the java expanded key ordering is rotated one position from what we want
+ // so we start from 0x10 here and hit 0x00 last
+ const XMMRegister xmm_key_shuf_mask = xmm1; // used temporarily to swap key bytes up front
+ __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr()));
+ // load up xmm regs 2 thru 6 with first 5 keys
+ for (int rnum = XMM_REG_NUM_KEY_FIRST, offset = 0x10; rnum <= XMM_REG_NUM_KEY_LAST; rnum++) {
+ load_key(as_XMMRegister(rnum), key, offset, xmm_key_shuf_mask);
+ offset += 0x10;
+ }
+
+ // inside here, use the rvec register to point to previous block cipher
+ // with which we xor at the end of each newly decrypted block
+ const Register prev_block_cipher_ptr = rvec;
+
+ // now split to different paths depending on the keylen (len in ints of AESCrypt.KLE array (52=192, or 60=256))
+ __ movl(rax, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT)));
+ __ cmpl(rax, 44);
+ __ jcc(Assembler::notEqual, L_key_192_256);
+
+
+ // 128-bit code follows here, parallelized
+ __ movptr(pos, 0);
+ __ align(OptoLoopAlignment);
+ __ BIND(L_singleBlock_loopTop_128);
+ __ cmpptr(len_reg, 0); // any blocks left??
+ __ jcc(Assembler::equal, L_exit);
+ __ movdqu(xmm_result, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of cipher input
+ __ pxor (xmm_result, xmm_key_first); // do the aes dec rounds
+ for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST; rnum++) {
+ __ aesdec(xmm_result, as_XMMRegister(rnum));
+ }
+ for (int key_offset = FIRST_NON_REG_KEY_offset; key_offset <= 0xa0; key_offset += 0x10) { // 128-bit runs up to key offset a0
+ aes_dec_key(xmm_result, xmm_temp, key, key_offset);
+ }
+ load_key(xmm_temp, key, 0x00); // final key is stored in java expanded array at offset 0
+ __ aesdeclast(xmm_result, xmm_temp);
+ __ movdqu(xmm_temp, Address(prev_block_cipher_ptr, 0x00));
+ __ pxor (xmm_result, xmm_temp); // xor with the current r vector
+ __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output
+ // no need to store r to memory until we exit
+ __ lea(prev_block_cipher_ptr, Address(from, pos, Address::times_1, 0)); // set up new ptr
+ __ addptr(pos, AESBlockSize);
+ __ subptr(len_reg, AESBlockSize);
+ __ jmp(L_singleBlock_loopTop_128);
+
+
+ __ BIND(L_exit);
+ __ movdqu(xmm_temp, Address(prev_block_cipher_ptr, 0x00));
+ __ movptr(rvec , rvec_param); // restore this since used in loop
+ __ movdqu(Address(rvec, 0), xmm_temp); // final value of r stored in rvec of CipherBlockChaining object
+ handleSOERegisters(false /*restoring*/);
+ __ movl(rax, 0); // return 0 (why?)
+ __ leave(); // required for proper stackwalking of RuntimeStub frame
+ __ ret(0);
+
+
+ __ BIND(L_key_192_256);
+ // here rax = len in ints of AESCrypt.KLE array (52=192, or 60=256)
+ __ cmpl(rax, 52);
+ __ jcc(Assembler::notEqual, L_key_256);
+
+ // 192-bit code follows here (could be optimized to use parallelism)
+ __ movptr(pos, 0);
+ __ align(OptoLoopAlignment);
+ __ BIND(L_singleBlock_loopTop_192);
+ __ movdqu(xmm_result, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of cipher input
+ __ pxor (xmm_result, xmm_key_first); // do the aes dec rounds
+ for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST; rnum++) {
+ __ aesdec(xmm_result, as_XMMRegister(rnum));
+ }
+ for (int key_offset = FIRST_NON_REG_KEY_offset; key_offset <= 0xc0; key_offset += 0x10) { // 192-bit runs up to key offset c0
+ aes_dec_key(xmm_result, xmm_temp, key, key_offset);
+ }
+ load_key(xmm_temp, key, 0x00); // final key is stored in java expanded array at offset 0
+ __ aesdeclast(xmm_result, xmm_temp);
+ __ movdqu(xmm_temp, Address(prev_block_cipher_ptr, 0x00));
+ __ pxor (xmm_result, xmm_temp); // xor with the current r vector
+ __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output
+ // no need to store r to memory until we exit
+ __ lea(prev_block_cipher_ptr, Address(from, pos, Address::times_1, 0)); // set up new ptr
+ __ addptr(pos, AESBlockSize);
+ __ subptr(len_reg, AESBlockSize);
+ __ jcc(Assembler::notEqual,L_singleBlock_loopTop_192);
+ __ jmp(L_exit);
+
+ __ BIND(L_key_256);
+ // 256-bit code follows here (could be optimized to use parallelism)
+ __ movptr(pos, 0);
+ __ align(OptoLoopAlignment);
+ __ BIND(L_singleBlock_loopTop_256);
+ __ movdqu(xmm_result, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of cipher input
+ __ pxor (xmm_result, xmm_key_first); // do the aes dec rounds
+ for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST; rnum++) {
+ __ aesdec(xmm_result, as_XMMRegister(rnum));
+ }
+ for (int key_offset = FIRST_NON_REG_KEY_offset; key_offset <= 0xe0; key_offset += 0x10) { // 256-bit runs up to key offset e0
+ aes_dec_key(xmm_result, xmm_temp, key, key_offset);
+ }
+ load_key(xmm_temp, key, 0x00); // final key is stored in java expanded array at offset 0
+ __ aesdeclast(xmm_result, xmm_temp);
+ __ movdqu(xmm_temp, Address(prev_block_cipher_ptr, 0x00));
+ __ pxor (xmm_result, xmm_temp); // xor with the current r vector
+ __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output
+ // no need to store r to memory until we exit
+ __ lea(prev_block_cipher_ptr, Address(from, pos, Address::times_1, 0)); // set up new ptr
+ __ addptr(pos, AESBlockSize);
+ __ subptr(len_reg, AESBlockSize);
+ __ jcc(Assembler::notEqual,L_singleBlock_loopTop_256);
+ __ jmp(L_exit);
+
+ return start;
+ }
+
+
public:
// Information about frame layout at time of blocking runtime call.
// Note that we only have to preserve callee-saved registers since
@@ -2332,6 +2855,16 @@
generate_arraycopy_stubs();
generate_math_stubs();
+
+ // don't bother generating these AES intrinsic stubs unless global flag is set
+ if (UseAESIntrinsics) {
+ StubRoutines::x86::_key_shuffle_mask_addr = generate_key_shuffle_mask(); // might be needed by the others
+
+ StubRoutines::_aescrypt_encryptBlock = generate_aescrypt_encryptBlock();
+ StubRoutines::_aescrypt_decryptBlock = generate_aescrypt_decryptBlock();
+ StubRoutines::_cipherBlockChaining_encryptAESCrypt = generate_cipherBlockChaining_encryptAESCrypt();
+ StubRoutines::_cipherBlockChaining_decryptAESCrypt = generate_cipherBlockChaining_decryptAESCrypt();
+ }
}