+ panic("Unrecognized/invalid instruction executed:\n %s",
+ inst->machInst);
+ }
+ }
+
+ void PageFault::invoke(ThreadContext * tc, StaticInstPtr inst)
+ {
+ if (FullSystem) {
+ HandyM5Reg m5reg = tc->readMiscRegNoEffect(MISCREG_M5_REG);
+ X86FaultBase::invoke(tc);
+ /*
+ * If something bad happens while trying to enter the page fault
+ * handler, I'm pretty sure that's a double fault and then all
+ * bets are off. That means it should be safe to update this
+ * state now.
+ */
+ if (m5reg.mode == LongMode) {
+ tc->setMiscReg(MISCREG_CR2, addr);
+ } else {
+ tc->setMiscReg(MISCREG_CR2, (uint32_t)addr);
+ }
+ } else {
+ PageFaultErrorCode code = errorCode;
+ const char *modeStr = "";
+ if (code.fetch)
+ modeStr = "execute";
+ else if (code.write)
+ modeStr = "write";
+ else
+ modeStr = "read";
+ panic("Tried to %s unmapped address %#x.\n", modeStr, addr);