arch/riscv/faults.cc

48 RiscvFault::invokeSE(ThreadContext *tc, const StaticInstPtr &inst)
50     panic("Fault %s encountered at pc 0x%016llx.", name(), tc->pcState().pc());
54 RiscvFault::invoke(ThreadContext *tc, const StaticInstPtr &inst)
56     PCState pcState = tc->pcState();
59         PrivilegeMode pp = (PrivilegeMode)tc->readMiscReg(MISCREG_PRV);
61         STATUS status = tc->readMiscReg(MISCREG_STATUS);
66                 bits(tc->readMiscReg(MISCREG_MIDELEG), _code) != 0) {
70                 bits(tc->readMiscReg(MISCREG_SIDELEG), _code) != 0) {
75                 bits(tc->readMiscReg(MISCREG_MEDELEG), _code) != 0) {
79                 bits(tc->readMiscReg(MISCREG_SEDELEG), _code) != 0) {
122         tc->setMiscReg(cause,
124         tc->setMiscReg(epc, tc->instAddr());
125         tc->setMiscReg(tval, trap_value());
126         tc->setMiscReg(MISCREG_PRV, prv);
127         tc->setMiscReg(MISCREG_STATUS, status);
130         Addr addr = tc->readMiscReg(tvec) >> 2;
131         if (isInterrupt() && bits(tc->readMiscReg(tvec), 1, 0) == 1)
135         invokeSE(tc, inst);
138     tc->pcState(pcState);
141 void Reset::invoke(ThreadContext *tc, const StaticInstPtr &inst)
143     tc->setMiscReg(MISCREG_PRV, PRV_M);
144     STATUS status = tc->readMiscReg(MISCREG_STATUS);
147     tc->setMiscReg(MISCREG_STATUS, status);
148     tc->setMiscReg(MISCREG_MCAUSE, 0);
151     PCState pc = static_cast<RiscvSystem *>(tc->getSystemPtr())->resetVect();
152     tc->pcState(pc);
156 UnknownInstFault::invokeSE(ThreadContext *tc, const StaticInstPtr &inst)
159         tc->pcState().pc());
163 IllegalInstFault::invokeSE(ThreadContext *tc, const StaticInstPtr &inst)
166         tc->pcState().pc(), reason.c_str());
170 UnimplementedFault::invokeSE(ThreadContext *tc,
174         tc->pcState().pc());
178 IllegalFrmFault::invokeSE(ThreadContext *tc, const StaticInstPtr &inst)
181             frm, tc->pcState().pc());
185 BreakpointFault::invokeSE(ThreadContext *tc, const StaticInstPtr &inst)
191 SyscallFault::invokeSE(ThreadContext *tc, const StaticInstPtr &inst)
194     tc->syscall(tc->readIntReg(SyscallNumReg), fault);