1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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685 tc->setNextPC(fillStart + sizeof(MachInst));
686 tc->setNextNPC(fillStart + 2*sizeof(MachInst));
687}
688
689void PageTableFault::invoke(ThreadContext *tc)
690{
691 Process *p = tc->getProcessPtr();
692
693 // We've accessed the next page of the stack, so extend the stack
694 // to cover it.
695 if(vaddr < p->stack_min && vaddr >= p->stack_min - PageBytes)
696 {
697 p->stack_min -= PageBytes;
698 if(p->stack_base - p->stack_min > 8*1024*1024)
699 fatal("Over max stack size for one thread\n");
700 p->pTable->allocate(p->stack_min, PageBytes);
701 warn("Increasing stack size by one page.");
702 }
703 // Otherwise, we have an unexpected page fault. Report that fact,
704 // and what address was accessed to cause the fault.
705 else
706 {
707 panic("Page table fault when accessing virtual address %#x\n", vaddr);
708 }
709}
710
711#endif
712
713} // namespace SparcISA
714