add syscall emulation page table fault so we can allocate more stack pages

src/cpu/simple/base.cc:
    add syscall emulation page table fault so we can allocate more stack pages
    FaultBase::invoke will do this, we don't need to do it here
src/sim/faults.hh:
    I have no idea why this #if was there... gone
src/sim/process.cc:
    make stack_min actually be the current minimum

--HG--
extra : convert_revision : 9786b39f2747b94654a5d77c74243cd20503add4

1 files changed, 26 insertions, 0 deletions

diff --git a/src/arch/sparc/faults.hh b/src/arch/sparc/faults.hh
index 9f595a28b..b279f4911 100644
--- a/src/arch/sparc/faults.hh
+++ b/src/arch/sparc/faults.hh
@@ -83,6 +83,31 @@ class MemAddressNotAligned : public SparcFault
     bool isAlignmentFault() {return true;}
 };
 
+#if !FULL_SYSTEM
+class PageTableFault : public SparcFault
+{
+  private:
+    Addr vaddr;
+    static FaultName _name;
+    static TrapType _trapType;
+    static FaultPriority _priority;
+    static FaultStat _count;
+  public:
+    PageTableFault(Addr va)
+        : vaddr(va) {}
+    FaultName name() {return _name;}
+    TrapType trapType() {return _trapType;}
+    FaultPriority priority() {return _priority;}
+    FaultStat & countStat() {return _count;}
+    void invoke(ThreadContext * tc);
+};
+
+static inline Fault genPageTableFault(Addr va)
+{
+    return new PageTableFault(va);
+}
+#endif
+
 static inline Fault genMachineCheckFault()
 {
     return new InternalProcessorError;
@@ -589,6 +614,7 @@ class TrapInstruction : public EnumeratedFault
 #endif
 };
 
+
 } // SparcISA namespace
 
 #endif // __FAULTS_HH__