src/arch/arm/insts/misc64.cc - public/gem5 - Git at Google

 /*
  * Copyright (c) 2011-2013,2017-2022 Arm Limited
  * All rights reserved
  *
  * The license below extends only to copyright in the software and shall
  * not be construed as granting a license to any other intellectual
  * property including but not limited to intellectual property relating
  * to a hardware implementation of the functionality of the software
  * licensed hereunder.  You may use the software subject to the license
  * terms below provided that you ensure that this notice is replicated
  * unmodified and in its entirety in all distributions of the software,
  * modified or unmodified, in source code or in binary form.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met: redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer;
  * redistributions in binary form must reproduce the above copyright
  * notice, this list of conditions and the following disclaimer in the
  * documentation and/or other materials provided with the distribution;
  * neither the name of the copyright holders nor the names of its
  * contributors may be used to endorse or promote products derived from
  * this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */

 #include "arch/arm/insts/misc64.hh"
 #include "arch/arm/isa.hh"

 #include "arch/arm/tlbi_op.hh"

 namespace gem5
 {

 using namespace ArmISA;

 std::string
 ImmOp64::generateDisassembly(Addr pc, const loader::SymbolTable *symtab) const
 {
     std::stringstream ss;
     printMnemonic(ss, "", false);
     ccprintf(ss, "#0x%x", imm);
     return ss.str();
 }

 std::string
 RegRegImmImmOp64::generateDisassembly(
         Addr pc, const loader::SymbolTable *symtab) const
 {
     std::stringstream ss;
     printMnemonic(ss, "", false);
     printIntReg(ss, dest);
     ss << ", ";
     printIntReg(ss, op1);
     ccprintf(ss, ", #%d, #%d", imm1, imm2);
     return ss.str();
 }

 std::string
 RegRegRegImmOp64::generateDisassembly(
     Addr pc, const loader::SymbolTable *symtab) const
 {
     std::stringstream ss;
     printMnemonic(ss, "", false);
     printIntReg(ss, dest);
     ss << ", ";
     printIntReg(ss, op1);
     ss << ", ";
     printIntReg(ss, op2);
     ccprintf(ss, ", #%d", imm);
     return ss.str();
 }

 std::string
 UnknownOp64::generateDisassembly(
         Addr pc, const loader::SymbolTable *symtab) const
 {
     return csprintf("%-10s (inst %#08x)", "unknown", encoding());
 }

 uint32_t
 MiscRegOp64::_iss(const MiscRegNum64 &misc_reg, RegIndex int_index) const
 {
     return _miscRead |
         (misc_reg.crm << 1) |
         (int_index << 5) |
         (misc_reg.crn << 10) |
         (misc_reg.op1 << 14) |
         (misc_reg.op2 << 17) |
         (misc_reg.op0 << 20);
 }

 Fault
 MiscRegOp64::generateTrap(ExceptionLevel el) const
 {
     return generateTrap(el, EC_TRAPPED_MSR_MRS_64, iss());
 }

 Fault
 MiscRegOp64::generateTrap(ExceptionLevel el, ExceptionClass ec,
         uint32_t iss) const
 {
     switch (el) {
       case EL1:
         return std::make_shared<SupervisorTrap>(getEMI(), iss, ec);
       case EL2:
         return std::make_shared<HypervisorTrap>(getEMI(), iss, ec);
       case EL3:
         return std::make_shared<SecureMonitorTrap>(getEMI(), iss, ec);
       default:
         panic("Invalid EL: %d\n", el);
     }
 }

 RegVal
 MiscRegImmOp64::miscRegImm() const
 {
     switch (dest) {
       case MISCREG_SPSEL:
         return imm & 0x1;
       case MISCREG_PAN:
         return (imm & 0x1) << 22;
       case MISCREG_UAO:
         return (imm & 0x1) << 23;
       default:
         panic("Not a valid PSTATE field register\n");
     }
 }

 std::string
 MiscRegImmOp64::generateDisassembly(
         Addr pc, const loader::SymbolTable *symtab) const
 {
     std::stringstream ss;
     printMnemonic(ss);
     printMiscReg(ss, dest);
     ss << ", ";
     ccprintf(ss, "#0x%x", imm);
     return ss.str();
 }

 std::string
 MiscRegRegImmOp64::generateDisassembly(
     Addr pc, const loader::SymbolTable *symtab) const
 {
     std::stringstream ss;
     printMnemonic(ss);
     printMiscReg(ss, dest);
     ss << ", ";
     printIntReg(ss, op1);
     return ss.str();
 }

 uint32_t
 MiscRegRegImmOp64::iss() const
 {
     const MiscRegNum64 &misc_reg = encodeAArch64SysReg(dest);
     return _iss(misc_reg, op1);
 }

 std::string
 RegMiscRegImmOp64::generateDisassembly(
     Addr pc, const loader::SymbolTable *symtab) const
 {
     std::stringstream ss;
     printMnemonic(ss);
     printIntReg(ss, dest);
     ss << ", ";
     printMiscReg(ss, op1);
     return ss.str();
 }

 uint32_t
 RegMiscRegImmOp64::iss() const
 {
     const MiscRegNum64 &misc_reg = encodeAArch64SysReg(op1);
     return _iss(misc_reg, dest);
 }

 Fault
 MiscRegImplDefined64::execute(ExecContext *xc,
                               trace::InstRecord *traceData) const
 {
     auto tc = xc->tcBase();
     const CPSR cpsr = tc->readMiscReg(MISCREG_CPSR);

     return checkFaultAccessAArch64SysReg(
         MISCREG_IMPDEF_UNIMPL, cpsr, tc, *this);
 }

 std::string
 MiscRegImplDefined64::generateDisassembly(
         Addr pc, const loader::SymbolTable *symtab) const
 {
     return csprintf("%-10s (implementation defined)", fullMnemonic.c_str());
 }

 uint32_t
 MiscRegImplDefined64::iss() const
 {
     return _iss(miscReg, intReg);
 }

 std::string
 RegNone::generateDisassembly(
     Addr pc, const loader::SymbolTable *symtab) const
 {
     std::stringstream ss;
     printMnemonic(ss);
     printIntReg(ss, dest);
     return ss.str();
 }

 void
 TlbiOp64::performTlbi(ExecContext *xc, MiscRegIndex dest_idx, RegVal value) const
 {
     ThreadContext* tc = xc->tcBase();
     auto isa = static_cast<ArmISA::ISA *>(tc->getIsaPtr());
     auto release = isa->getRelease();

     bool asid_16bits = ArmSystem::haveLargeAsid64(tc);

     switch (dest_idx) {
       // AArch64 TLB Invalidate All, EL3
       case MISCREG_TLBI_ALLE3:
         {
             TLBIALLEL tlbiOp(EL3, true);
             tlbiOp(tc);
             return;
         }
       // AArch64 TLB Invalidate All, EL3, Inner Shareable
       case MISCREG_TLBI_ALLE3IS:
         {
             TLBIALLEL tlbiOp(EL3, true);
             tlbiOp.broadcast(tc);
             return;
         }
       // AArch64 TLB Invalidate All, EL2
       case MISCREG_TLBI_ALLE2:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIALLEL tlbiOp(EL2, secure);
             tlbiOp(tc);
             return;
         }
       // AArch64 TLB Invalidate All, EL2, Inner Shareable
       case MISCREG_TLBI_ALLE2IS:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIALLEL tlbiOp(EL2, secure);
             tlbiOp.broadcast(tc);
             return;
         }
       // AArch64 TLB Invalidate All, EL1
       case MISCREG_TLBI_ALLE1:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIALLEL tlbiOp(EL1, secure);
             tlbiOp(tc);
             return;
         }
       // AArch64 TLB Invalidate All, EL1, Inner Shareable
       case MISCREG_TLBI_ALLE1IS:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIALLEL tlbiOp(EL1, secure);
             tlbiOp.broadcast(tc);
             return;
         }
       case MISCREG_TLBI_VMALLS12E1:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIVMALL tlbiOp(EL1, secure, true);
             tlbiOp(tc);
             return;
         }
       case MISCREG_TLBI_VMALLE1:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);

             ExceptionLevel target_el = EL1;
             if (EL2Enabled(tc)) {
                 HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
                 if (hcr.tge && hcr.e2h) {
                     target_el = EL2;
                 }
             }

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIVMALL tlbiOp(target_el, secure, false);
             tlbiOp(tc);
             return;
         }
       case MISCREG_TLBI_VMALLS12E1IS:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIVMALL tlbiOp(EL1, secure, true);
             tlbiOp.broadcast(tc);
             return;
         }
       case MISCREG_TLBI_VMALLE1IS:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);

             ExceptionLevel target_el = EL1;
             if (EL2Enabled(tc)) {
                 HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
                 if (hcr.tge && hcr.e2h) {
                     target_el = EL2;
                 }
             }

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIVMALL tlbiOp(target_el, secure, false);
             tlbiOp.broadcast(tc);
             return;
         }
       // AArch64 TLB Invalidate by VA, EL3
       case MISCREG_TLBI_VAE3_Xt:
         {

             TLBIMVAA tlbiOp(EL3, true,
                             static_cast<Addr>(bits(value, 43, 0)) << 12,
                             false);
             tlbiOp(tc);
             return;
         }
       // AArch64 TLB Invalidate by VA, Last Level, EL3
       case MISCREG_TLBI_VALE3_Xt:
         {

             TLBIMVAA tlbiOp(EL3, true,
                             static_cast<Addr>(bits(value, 43, 0)) << 12,
                             true);
             tlbiOp(tc);
             return;
         }
       // AArch64 TLB Invalidate by VA, EL3, Inner Shareable
       case MISCREG_TLBI_VAE3IS_Xt:
         {
             TLBIMVAA tlbiOp(EL3, true,
                             static_cast<Addr>(bits(value, 43, 0)) << 12,
                             false);

             tlbiOp.broadcast(tc);
             return;
         }
       // AArch64 TLB Invalidate by VA, Last Level, EL3, Inner Shareable
       case MISCREG_TLBI_VALE3IS_Xt:
         {
             TLBIMVAA tlbiOp(EL3, true,
                             static_cast<Addr>(bits(value, 43, 0)) << 12,
                             true);

             tlbiOp.broadcast(tc);
             return;
         }
       // AArch64 TLB Invalidate by VA, EL2
       case MISCREG_TLBI_VAE2_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);
             HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;

             if (hcr.e2h) {
                 // The asid will only be used when e2h == 1
                 auto asid = asid_16bits ? bits(value, 63, 48) :
                                           bits(value, 55, 48);

                 TLBIMVA tlbiOp(EL2, secure,
                                static_cast<Addr>(bits(value, 43, 0)) << 12,
                                asid, false);
                 tlbiOp(tc);
             } else {
                 TLBIMVAA tlbiOp(EL2, secure,
                                 static_cast<Addr>(bits(value, 43, 0)) << 12,
                                 false);
                 tlbiOp(tc);
             }
             return;
         }
       // AArch64 TLB Invalidate by VA, Last Level, EL2
       case MISCREG_TLBI_VALE2_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);
             HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;

             if (hcr.e2h) {
                 // The asid will only be used when e2h == 1
                 auto asid = asid_16bits ? bits(value, 63, 48) :
                                           bits(value, 55, 48);

                 TLBIMVA tlbiOp(EL2, secure,
                                static_cast<Addr>(bits(value, 43, 0)) << 12,
                                asid, true);
                 tlbiOp(tc);
             } else {
                 TLBIMVAA tlbiOp(EL2, secure,
                                 static_cast<Addr>(bits(value, 43, 0)) << 12,
                                 true);
                 tlbiOp(tc);
             }
             return;
         }
       // AArch64 TLB Invalidate by VA, EL2, Inner Shareable
       case MISCREG_TLBI_VAE2IS_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);
             HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;

             if (hcr.e2h) {
                 // The asid will only be used when e2h == 1
                 auto asid = asid_16bits ? bits(value, 63, 48) :
                                           bits(value, 55, 48);

                 TLBIMVA tlbiOp(EL2, secure,
                                static_cast<Addr>(bits(value, 43, 0)) << 12,
                                asid, false);
                 tlbiOp.broadcast(tc);
             } else {
                 TLBIMVAA tlbiOp(EL2, secure,
                                 static_cast<Addr>(bits(value, 43, 0)) << 12,
                                 false);
                 tlbiOp.broadcast(tc);
             }
             return;
         }
       // AArch64 TLB Invalidate by VA, Last Level, EL2, Inner Shareable
       case MISCREG_TLBI_VALE2IS_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);
             HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;

             if (hcr.e2h) {
                 // The asid will only be used when e2h == 1
                 auto asid = asid_16bits ? bits(value, 63, 48) :
                                           bits(value, 55, 48);

                 TLBIMVA tlbiOp(EL2, secure,
                                static_cast<Addr>(bits(value, 43, 0)) << 12,
                                asid, true);
                 tlbiOp.broadcast(tc);
             } else {
                 TLBIMVAA tlbiOp(EL2, secure,
                                 static_cast<Addr>(bits(value, 43, 0)) << 12,
                                 true);
                 tlbiOp.broadcast(tc);
             }
             return;
         }
       // AArch64 TLB Invalidate by VA, EL1
       case MISCREG_TLBI_VAE1_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);
             auto asid = asid_16bits ? bits(value, 63, 48) :
                                       bits(value, 55, 48);

             ExceptionLevel target_el = EL1;
             if (EL2Enabled(tc)) {
                 HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
                 if (hcr.tge && hcr.e2h) {
                     target_el = EL2;
                 }
             }

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIMVA tlbiOp(target_el, secure,
                            static_cast<Addr>(bits(value, 43, 0)) << 12,
                            asid, false);

             tlbiOp(tc);
             return;
         }
       // AArch64 TLB Invalidate by VA, Last Level, EL1
       case MISCREG_TLBI_VALE1_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);
             auto asid = asid_16bits ? bits(value, 63, 48) :
                                       bits(value, 55, 48);

             ExceptionLevel target_el = EL1;
             if (EL2Enabled(tc)) {
                 HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
                 if (hcr.tge && hcr.e2h) {
                     target_el = EL2;
                 }
             }

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIMVA tlbiOp(target_el, secure,
                            static_cast<Addr>(bits(value, 43, 0)) << 12,
                            asid, true);

             tlbiOp(tc);
             return;
         }
       // AArch64 TLB Invalidate by VA, EL1, Inner Shareable
       case MISCREG_TLBI_VAE1IS_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);
             auto asid = asid_16bits ? bits(value, 63, 48) :
                                       bits(value, 55, 48);

             ExceptionLevel target_el = EL1;
             if (EL2Enabled(tc)) {
                 HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
                 if (hcr.tge && hcr.e2h) {
                     target_el = EL2;
                 }
             }

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIMVA tlbiOp(target_el, secure,
                             static_cast<Addr>(bits(value, 43, 0)) << 12,
                             asid, false);

             tlbiOp.broadcast(tc);
             return;
         }
       case MISCREG_TLBI_VALE1IS_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);
             auto asid = asid_16bits ? bits(value, 63, 48) :
                                       bits(value, 55, 48);

             ExceptionLevel target_el = EL1;
             if (EL2Enabled(tc)) {
                 HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
                 if (hcr.tge && hcr.e2h) {
                     target_el = EL2;
                 }
             }

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIMVA tlbiOp(target_el, secure,
                             static_cast<Addr>(bits(value, 43, 0)) << 12,
                             asid, true);

             tlbiOp.broadcast(tc);
             return;
         }
       // AArch64 TLB Invalidate by ASID, EL1
       case MISCREG_TLBI_ASIDE1_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);
             auto asid = asid_16bits ? bits(value, 63, 48) :
                                       bits(value, 55, 48);

             ExceptionLevel target_el = EL1;
             if (EL2Enabled(tc)) {
                 HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
                 if (hcr.tge && hcr.e2h) {
                     target_el = EL2;
                 }
             }

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIASID tlbiOp(target_el, secure, asid);
             tlbiOp(tc);
             return;
         }
       // AArch64 TLB Invalidate by ASID, EL1, Inner Shareable
       case MISCREG_TLBI_ASIDE1IS_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);
             auto asid = asid_16bits ? bits(value, 63, 48) :
                                       bits(value, 55, 48);

             ExceptionLevel target_el = EL1;
             if (EL2Enabled(tc)) {
                 HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
                 if (hcr.tge && hcr.e2h) {
                     target_el = EL2;
                 }
             }

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIASID tlbiOp(target_el, secure, asid);
             tlbiOp.broadcast(tc);
             return;
         }
       // AArch64 TLB Invalidate by VA, All ASID, EL1
       case MISCREG_TLBI_VAAE1_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);

             ExceptionLevel target_el = EL1;
             if (EL2Enabled(tc)) {
                 HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
                 if (hcr.tge && hcr.e2h) {
                     target_el = EL2;
                 }
             }

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIMVAA tlbiOp(target_el, secure,
                 static_cast<Addr>(bits(value, 43, 0)) << 12,
                 false);

             tlbiOp(tc);
             return;
         }
       // AArch64 TLB Invalidate by VA, Last Level, All ASID, EL1
       case MISCREG_TLBI_VAALE1_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);

             ExceptionLevel target_el = EL1;
             if (EL2Enabled(tc)) {
                 HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
                 if (hcr.tge && hcr.e2h) {
                     target_el = EL2;
                 }
             }

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIMVAA tlbiOp(target_el, secure,
                 static_cast<Addr>(bits(value, 43, 0)) << 12,
                 true);

             tlbiOp(tc);
             return;
         }
       // AArch64 TLB Invalidate by VA, All ASID, EL1, Inner Shareable
       case MISCREG_TLBI_VAAE1IS_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);

             ExceptionLevel target_el = EL1;
             if (EL2Enabled(tc)) {
                 HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
                 if (hcr.tge && hcr.e2h) {
                     target_el = EL2;
                 }
             }

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIMVAA tlbiOp(target_el, secure,
                 static_cast<Addr>(bits(value, 43, 0)) << 12,
                 false);

             tlbiOp.broadcast(tc);
             return;
         }
       // AArch64 TLB Invalidate by VA, All ASID,
       // Last Level, EL1, Inner Shareable
       case MISCREG_TLBI_VAALE1IS_Xt:
         {
             SCR scr = tc->readMiscReg(MISCREG_SCR);

             ExceptionLevel target_el = EL1;
             if (EL2Enabled(tc)) {
                 HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
                 if (hcr.tge && hcr.e2h) {
                     target_el = EL2;
                 }
             }

             bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
             TLBIMVAA tlbiOp(target_el, secure,
                 static_cast<Addr>(bits(value, 43, 0)) << 12,
                 true);

             tlbiOp.broadcast(tc);
             return;
         }
       // AArch64 TLB Invalidate by Intermediate Physical Address,
       // Stage 2, EL1
       case MISCREG_TLBI_IPAS2E1_Xt:
         {
             if (EL2Enabled(tc)) {
                 SCR scr = tc->readMiscReg(MISCREG_SCR);

                 bool secure = release->has(ArmExtension::SECURITY) &&
                     !scr.ns && !bits(value, 63);

                 const int top_bit = ArmSystem::physAddrRange(tc) == 52 ?
                     39 : 35;
                 TLBIIPA tlbiOp(EL1, secure,
                     static_cast<Addr>(bits(value, top_bit, 0)) << 12,
                     false);

                 tlbiOp(tc);
             }
             return;
         }
       // AArch64 TLB Invalidate by Intermediate Physical Address,
       // Stage 2, Last Level EL1
       case MISCREG_TLBI_IPAS2LE1_Xt:
         {
             if (EL2Enabled(tc)) {
                 SCR scr = tc->readMiscReg(MISCREG_SCR);

                 bool secure = release->has(ArmExtension::SECURITY) &&
                     !scr.ns && !bits(value, 63);

                 TLBIIPA tlbiOp(EL1, secure,
                     static_cast<Addr>(bits(value, 35, 0)) << 12,
                     true);

                 tlbiOp(tc);
             }
             return;
         }
       // AArch64 TLB Invalidate by Intermediate Physical Address,
       // Stage 2, EL1, Inner Shareable
       case MISCREG_TLBI_IPAS2E1IS_Xt:
         {
             if (EL2Enabled(tc)) {
                 SCR scr = tc->readMiscReg(MISCREG_SCR);

                 bool secure = release->has(ArmExtension::SECURITY) &&
                     !scr.ns && !bits(value, 63);

                 const int top_bit = ArmSystem::physAddrRange(tc) == 52 ?
                     39 : 35;
                 TLBIIPA tlbiOp(EL1, secure,
                     static_cast<Addr>(bits(value, top_bit, 0)) << 12,
                     false);

                 tlbiOp.broadcast(tc);
             }
             return;
         }
       // AArch64 TLB Invalidate by Intermediate Physical Address,
       // Stage 2, Last Level, EL1, Inner Shareable
       case MISCREG_TLBI_IPAS2LE1IS_Xt:
         {
             if (EL2Enabled(tc)) {
                 SCR scr = tc->readMiscReg(MISCREG_SCR);

                 bool secure = release->has(ArmExtension::SECURITY) &&
                     !scr.ns && !bits(value, 63);

                 TLBIIPA tlbiOp(EL1, secure,
                     static_cast<Addr>(bits(value, 35, 0)) << 12,
                     true);

                 tlbiOp.broadcast(tc);
             }
             return;
         }
       default:
         panic("Invalid TLBI\n");
     }
 }

 } // namespace gem5
	/*
	* Copyright (c) 2011-2013,2017-2022 Arm Limited
	* All rights reserved
	*
	* The license below extends only to copyright in the software and shall
	* not be construed as granting a license to any other intellectual
	* property including but not limited to intellectual property relating
	* to a hardware implementation of the functionality of the software
	* licensed hereunder. You may use the software subject to the license
	* terms below provided that you ensure that this notice is replicated
	* unmodified and in its entirety in all distributions of the software,
	* modified or unmodified, in source code or in binary form.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions are
	* met: redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer;
	* redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution;
	* neither the name of the copyright holders nor the names of its
	* contributors may be used to endorse or promote products derived from
	* this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/

	#include "arch/arm/insts/misc64.hh"
	#include "arch/arm/isa.hh"

	#include "arch/arm/tlbi_op.hh"

	namespace gem5
	{

	using namespace ArmISA;

	std::string
	ImmOp64::generateDisassembly(Addr pc, const loader::SymbolTable *symtab) const
	{
	std::stringstream ss;
	printMnemonic(ss, "", false);
	ccprintf(ss, "#0x%x", imm);
	return ss.str();
	}

	std::string
	RegRegImmImmOp64::generateDisassembly(
	Addr pc, const loader::SymbolTable *symtab) const
	{
	std::stringstream ss;
	printMnemonic(ss, "", false);
	printIntReg(ss, dest);
	ss << ", ";
	printIntReg(ss, op1);
	ccprintf(ss, ", #%d, #%d", imm1, imm2);
	return ss.str();
	}

	std::string
	RegRegRegImmOp64::generateDisassembly(
	Addr pc, const loader::SymbolTable *symtab) const
	{
	std::stringstream ss;
	printMnemonic(ss, "", false);
	printIntReg(ss, dest);
	ss << ", ";
	printIntReg(ss, op1);
	ss << ", ";
	printIntReg(ss, op2);
	ccprintf(ss, ", #%d", imm);
	return ss.str();
	}

	std::string
	UnknownOp64::generateDisassembly(
	Addr pc, const loader::SymbolTable *symtab) const
	{
	return csprintf("%-10s (inst %#08x)", "unknown", encoding());
	}

	uint32_t
	MiscRegOp64::_iss(const MiscRegNum64 &misc_reg, RegIndex int_index) const
	{
	return _miscRead \|
	(misc_reg.crm << 1) \|
	(int_index << 5) \|
	(misc_reg.crn << 10) \|
	(misc_reg.op1 << 14) \|
	(misc_reg.op2 << 17) \|
	(misc_reg.op0 << 20);
	}

	Fault
	MiscRegOp64::generateTrap(ExceptionLevel el) const
	{
	return generateTrap(el, EC_TRAPPED_MSR_MRS_64, iss());
	}

	Fault
	MiscRegOp64::generateTrap(ExceptionLevel el, ExceptionClass ec,
	uint32_t iss) const
	{
	switch (el) {
	case EL1:
	return std::make_shared<SupervisorTrap>(getEMI(), iss, ec);
	case EL2:
	return std::make_shared<HypervisorTrap>(getEMI(), iss, ec);
	case EL3:
	return std::make_shared<SecureMonitorTrap>(getEMI(), iss, ec);
	default:
	panic("Invalid EL: %d\n", el);
	}
	}

	RegVal
	MiscRegImmOp64::miscRegImm() const
	{
	switch (dest) {
	case MISCREG_SPSEL:
	return imm & 0x1;
	case MISCREG_PAN:
	return (imm & 0x1) << 22;
	case MISCREG_UAO:
	return (imm & 0x1) << 23;
	default:
	panic("Not a valid PSTATE field register\n");
	}
	}

	std::string
	MiscRegImmOp64::generateDisassembly(
	Addr pc, const loader::SymbolTable *symtab) const
	{
	std::stringstream ss;
	printMnemonic(ss);
	printMiscReg(ss, dest);
	ss << ", ";
	ccprintf(ss, "#0x%x", imm);
	return ss.str();
	}

	std::string
	MiscRegRegImmOp64::generateDisassembly(
	Addr pc, const loader::SymbolTable *symtab) const
	{
	std::stringstream ss;
	printMnemonic(ss);
	printMiscReg(ss, dest);
	ss << ", ";
	printIntReg(ss, op1);
	return ss.str();
	}

	uint32_t
	MiscRegRegImmOp64::iss() const
	{
	const MiscRegNum64 &misc_reg = encodeAArch64SysReg(dest);
	return _iss(misc_reg, op1);
	}

	std::string
	RegMiscRegImmOp64::generateDisassembly(
	Addr pc, const loader::SymbolTable *symtab) const
	{
	std::stringstream ss;
	printMnemonic(ss);
	printIntReg(ss, dest);
	ss << ", ";
	printMiscReg(ss, op1);
	return ss.str();
	}

	uint32_t
	RegMiscRegImmOp64::iss() const
	{
	const MiscRegNum64 &misc_reg = encodeAArch64SysReg(op1);
	return _iss(misc_reg, dest);
	}

	Fault
	MiscRegImplDefined64::execute(ExecContext *xc,
	trace::InstRecord *traceData) const
	{
	auto tc = xc->tcBase();
	const CPSR cpsr = tc->readMiscReg(MISCREG_CPSR);

	return checkFaultAccessAArch64SysReg(
	MISCREG_IMPDEF_UNIMPL, cpsr, tc, *this);
	}

	std::string
	MiscRegImplDefined64::generateDisassembly(
	Addr pc, const loader::SymbolTable *symtab) const
	{
	return csprintf("%-10s (implementation defined)", fullMnemonic.c_str());
	}

	uint32_t
	MiscRegImplDefined64::iss() const
	{
	return _iss(miscReg, intReg);
	}

	std::string
	RegNone::generateDisassembly(
	Addr pc, const loader::SymbolTable *symtab) const
	{
	std::stringstream ss;
	printMnemonic(ss);
	printIntReg(ss, dest);
	return ss.str();
	}

	void
	TlbiOp64::performTlbi(ExecContext *xc, MiscRegIndex dest_idx, RegVal value) const
	{
	ThreadContext* tc = xc->tcBase();
	auto isa = static_cast<ArmISA::ISA *>(tc->getIsaPtr());
	auto release = isa->getRelease();

	bool asid_16bits = ArmSystem::haveLargeAsid64(tc);

	switch (dest_idx) {
	// AArch64 TLB Invalidate All, EL3
	case MISCREG_TLBI_ALLE3:
	{
	TLBIALLEL tlbiOp(EL3, true);
	tlbiOp(tc);
	return;
	}
	// AArch64 TLB Invalidate All, EL3, Inner Shareable
	case MISCREG_TLBI_ALLE3IS:
	{
	TLBIALLEL tlbiOp(EL3, true);
	tlbiOp.broadcast(tc);
	return;
	}
	// AArch64 TLB Invalidate All, EL2
	case MISCREG_TLBI_ALLE2:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIALLEL tlbiOp(EL2, secure);
	tlbiOp(tc);
	return;
	}
	// AArch64 TLB Invalidate All, EL2, Inner Shareable
	case MISCREG_TLBI_ALLE2IS:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIALLEL tlbiOp(EL2, secure);
	tlbiOp.broadcast(tc);
	return;
	}
	// AArch64 TLB Invalidate All, EL1
	case MISCREG_TLBI_ALLE1:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIALLEL tlbiOp(EL1, secure);
	tlbiOp(tc);
	return;
	}
	// AArch64 TLB Invalidate All, EL1, Inner Shareable
	case MISCREG_TLBI_ALLE1IS:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIALLEL tlbiOp(EL1, secure);
	tlbiOp.broadcast(tc);
	return;
	}
	case MISCREG_TLBI_VMALLS12E1:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIVMALL tlbiOp(EL1, secure, true);
	tlbiOp(tc);
	return;
	}
	case MISCREG_TLBI_VMALLE1:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	ExceptionLevel target_el = EL1;
	if (EL2Enabled(tc)) {
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
	if (hcr.tge && hcr.e2h) {
	target_el = EL2;
	}
	}

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIVMALL tlbiOp(target_el, secure, false);
	tlbiOp(tc);
	return;
	}
	case MISCREG_TLBI_VMALLS12E1IS:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIVMALL tlbiOp(EL1, secure, true);
	tlbiOp.broadcast(tc);
	return;
	}
	case MISCREG_TLBI_VMALLE1IS:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	ExceptionLevel target_el = EL1;
	if (EL2Enabled(tc)) {
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
	if (hcr.tge && hcr.e2h) {
	target_el = EL2;
	}
	}

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIVMALL tlbiOp(target_el, secure, false);
	tlbiOp.broadcast(tc);
	return;
	}
	// AArch64 TLB Invalidate by VA, EL3
	case MISCREG_TLBI_VAE3_Xt:
	{

	TLBIMVAA tlbiOp(EL3, true,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	false);
	tlbiOp(tc);
	return;
	}
	// AArch64 TLB Invalidate by VA, Last Level, EL3
	case MISCREG_TLBI_VALE3_Xt:
	{

	TLBIMVAA tlbiOp(EL3, true,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	true);
	tlbiOp(tc);
	return;
	}
	// AArch64 TLB Invalidate by VA, EL3, Inner Shareable
	case MISCREG_TLBI_VAE3IS_Xt:
	{
	TLBIMVAA tlbiOp(EL3, true,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	false);

	tlbiOp.broadcast(tc);
	return;
	}
	// AArch64 TLB Invalidate by VA, Last Level, EL3, Inner Shareable
	case MISCREG_TLBI_VALE3IS_Xt:
	{
	TLBIMVAA tlbiOp(EL3, true,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	true);

	tlbiOp.broadcast(tc);
	return;
	}
	// AArch64 TLB Invalidate by VA, EL2
	case MISCREG_TLBI_VAE2_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;

	if (hcr.e2h) {
	// The asid will only be used when e2h == 1
	auto asid = asid_16bits ? bits(value, 63, 48) :
	bits(value, 55, 48);

	TLBIMVA tlbiOp(EL2, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	asid, false);
	tlbiOp(tc);
	} else {
	TLBIMVAA tlbiOp(EL2, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	false);
	tlbiOp(tc);
	}
	return;
	}
	// AArch64 TLB Invalidate by VA, Last Level, EL2
	case MISCREG_TLBI_VALE2_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;

	if (hcr.e2h) {
	// The asid will only be used when e2h == 1
	auto asid = asid_16bits ? bits(value, 63, 48) :
	bits(value, 55, 48);

	TLBIMVA tlbiOp(EL2, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	asid, true);
	tlbiOp(tc);
	} else {
	TLBIMVAA tlbiOp(EL2, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	true);
	tlbiOp(tc);
	}
	return;
	}
	// AArch64 TLB Invalidate by VA, EL2, Inner Shareable
	case MISCREG_TLBI_VAE2IS_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;

	if (hcr.e2h) {
	// The asid will only be used when e2h == 1
	auto asid = asid_16bits ? bits(value, 63, 48) :
	bits(value, 55, 48);

	TLBIMVA tlbiOp(EL2, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	asid, false);
	tlbiOp.broadcast(tc);
	} else {
	TLBIMVAA tlbiOp(EL2, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	false);
	tlbiOp.broadcast(tc);
	}
	return;
	}
	// AArch64 TLB Invalidate by VA, Last Level, EL2, Inner Shareable
	case MISCREG_TLBI_VALE2IS_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;

	if (hcr.e2h) {
	// The asid will only be used when e2h == 1
	auto asid = asid_16bits ? bits(value, 63, 48) :
	bits(value, 55, 48);

	TLBIMVA tlbiOp(EL2, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	asid, true);
	tlbiOp.broadcast(tc);
	} else {
	TLBIMVAA tlbiOp(EL2, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	true);
	tlbiOp.broadcast(tc);
	}
	return;
	}
	// AArch64 TLB Invalidate by VA, EL1
	case MISCREG_TLBI_VAE1_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);
	auto asid = asid_16bits ? bits(value, 63, 48) :
	bits(value, 55, 48);

	ExceptionLevel target_el = EL1;
	if (EL2Enabled(tc)) {
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
	if (hcr.tge && hcr.e2h) {
	target_el = EL2;
	}
	}

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIMVA tlbiOp(target_el, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	asid, false);

	tlbiOp(tc);
	return;
	}
	// AArch64 TLB Invalidate by VA, Last Level, EL1
	case MISCREG_TLBI_VALE1_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);
	auto asid = asid_16bits ? bits(value, 63, 48) :
	bits(value, 55, 48);

	ExceptionLevel target_el = EL1;
	if (EL2Enabled(tc)) {
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
	if (hcr.tge && hcr.e2h) {
	target_el = EL2;
	}
	}

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIMVA tlbiOp(target_el, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	asid, true);

	tlbiOp(tc);
	return;
	}
	// AArch64 TLB Invalidate by VA, EL1, Inner Shareable
	case MISCREG_TLBI_VAE1IS_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);
	auto asid = asid_16bits ? bits(value, 63, 48) :
	bits(value, 55, 48);

	ExceptionLevel target_el = EL1;
	if (EL2Enabled(tc)) {
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
	if (hcr.tge && hcr.e2h) {
	target_el = EL2;
	}
	}

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIMVA tlbiOp(target_el, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	asid, false);

	tlbiOp.broadcast(tc);
	return;
	}
	case MISCREG_TLBI_VALE1IS_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);
	auto asid = asid_16bits ? bits(value, 63, 48) :
	bits(value, 55, 48);

	ExceptionLevel target_el = EL1;
	if (EL2Enabled(tc)) {
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
	if (hcr.tge && hcr.e2h) {
	target_el = EL2;
	}
	}

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIMVA tlbiOp(target_el, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	asid, true);

	tlbiOp.broadcast(tc);
	return;
	}
	// AArch64 TLB Invalidate by ASID, EL1
	case MISCREG_TLBI_ASIDE1_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);
	auto asid = asid_16bits ? bits(value, 63, 48) :
	bits(value, 55, 48);

	ExceptionLevel target_el = EL1;
	if (EL2Enabled(tc)) {
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
	if (hcr.tge && hcr.e2h) {
	target_el = EL2;
	}
	}

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIASID tlbiOp(target_el, secure, asid);
	tlbiOp(tc);
	return;
	}
	// AArch64 TLB Invalidate by ASID, EL1, Inner Shareable
	case MISCREG_TLBI_ASIDE1IS_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);
	auto asid = asid_16bits ? bits(value, 63, 48) :
	bits(value, 55, 48);

	ExceptionLevel target_el = EL1;
	if (EL2Enabled(tc)) {
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
	if (hcr.tge && hcr.e2h) {
	target_el = EL2;
	}
	}

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIASID tlbiOp(target_el, secure, asid);
	tlbiOp.broadcast(tc);
	return;
	}
	// AArch64 TLB Invalidate by VA, All ASID, EL1
	case MISCREG_TLBI_VAAE1_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	ExceptionLevel target_el = EL1;
	if (EL2Enabled(tc)) {
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
	if (hcr.tge && hcr.e2h) {
	target_el = EL2;
	}
	}

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIMVAA tlbiOp(target_el, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	false);

	tlbiOp(tc);
	return;
	}
	// AArch64 TLB Invalidate by VA, Last Level, All ASID, EL1
	case MISCREG_TLBI_VAALE1_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	ExceptionLevel target_el = EL1;
	if (EL2Enabled(tc)) {
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
	if (hcr.tge && hcr.e2h) {
	target_el = EL2;
	}
	}

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIMVAA tlbiOp(target_el, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	true);

	tlbiOp(tc);
	return;
	}
	// AArch64 TLB Invalidate by VA, All ASID, EL1, Inner Shareable
	case MISCREG_TLBI_VAAE1IS_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	ExceptionLevel target_el = EL1;
	if (EL2Enabled(tc)) {
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
	if (hcr.tge && hcr.e2h) {
	target_el = EL2;
	}
	}

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIMVAA tlbiOp(target_el, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	false);

	tlbiOp.broadcast(tc);
	return;
	}
	// AArch64 TLB Invalidate by VA, All ASID,
	// Last Level, EL1, Inner Shareable
	case MISCREG_TLBI_VAALE1IS_Xt:
	{
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	ExceptionLevel target_el = EL1;
	if (EL2Enabled(tc)) {
	HCR hcr = tc->readMiscReg(MISCREG_HCR_EL2);
	if (hcr.tge && hcr.e2h) {
	target_el = EL2;
	}
	}

	bool secure = release->has(ArmExtension::SECURITY) && !scr.ns;
	TLBIMVAA tlbiOp(target_el, secure,
	static_cast<Addr>(bits(value, 43, 0)) << 12,
	true);

	tlbiOp.broadcast(tc);
	return;
	}
	// AArch64 TLB Invalidate by Intermediate Physical Address,
	// Stage 2, EL1
	case MISCREG_TLBI_IPAS2E1_Xt:
	{
	if (EL2Enabled(tc)) {
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	bool secure = release->has(ArmExtension::SECURITY) &&
	!scr.ns && !bits(value, 63);

	const int top_bit = ArmSystem::physAddrRange(tc) == 52 ?
	39 : 35;
	TLBIIPA tlbiOp(EL1, secure,
	static_cast<Addr>(bits(value, top_bit, 0)) << 12,
	false);

	tlbiOp(tc);
	}
	return;
	}
	// AArch64 TLB Invalidate by Intermediate Physical Address,
	// Stage 2, Last Level EL1
	case MISCREG_TLBI_IPAS2LE1_Xt:
	{
	if (EL2Enabled(tc)) {
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	bool secure = release->has(ArmExtension::SECURITY) &&
	!scr.ns && !bits(value, 63);

	TLBIIPA tlbiOp(EL1, secure,
	static_cast<Addr>(bits(value, 35, 0)) << 12,
	true);

	tlbiOp(tc);
	}
	return;
	}
	// AArch64 TLB Invalidate by Intermediate Physical Address,
	// Stage 2, EL1, Inner Shareable
	case MISCREG_TLBI_IPAS2E1IS_Xt:
	{
	if (EL2Enabled(tc)) {
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	bool secure = release->has(ArmExtension::SECURITY) &&
	!scr.ns && !bits(value, 63);

	const int top_bit = ArmSystem::physAddrRange(tc) == 52 ?
	39 : 35;
	TLBIIPA tlbiOp(EL1, secure,
	static_cast<Addr>(bits(value, top_bit, 0)) << 12,
	false);

	tlbiOp.broadcast(tc);
	}
	return;
	}
	// AArch64 TLB Invalidate by Intermediate Physical Address,
	// Stage 2, Last Level, EL1, Inner Shareable
	case MISCREG_TLBI_IPAS2LE1IS_Xt:
	{
	if (EL2Enabled(tc)) {
	SCR scr = tc->readMiscReg(MISCREG_SCR);

	bool secure = release->has(ArmExtension::SECURITY) &&
	!scr.ns && !bits(value, 63);

	TLBIIPA tlbiOp(EL1, secure,
	static_cast<Addr>(bits(value, 35, 0)) << 12,
	true);

	tlbiOp.broadcast(tc);
	}
	return;
	}
	default:
	panic("Invalid TLBI\n");
	}
	}

	} // namespace gem5