changeset b3ab661715ac in /z/repo/m5
details: http://repo.m5sim.org/m5?cmd=changeset;node=b3ab661715ac
description:
X86: Explain what really didn't work with unmapped addresses in SE mode.
diffstat:
1 file changed, 13 insertions(+), 3 deletions(-)
src/arch/x86/tlb.cc | 16 +++++++++++++---
diffs (29 lines):
diff -r 530e457c88c7 -r b3ab661715ac src/arch/x86/tlb.cc
--- a/src/arch/x86/tlb.cc Sun Nov 08 22:49:57 2009 -0800
+++ b/src/arch/x86/tlb.cc Sun Nov 08 22:49:57 2009 -0800
@@ -632,12 +632,22 @@
Process *p = tc->getProcessPtr();
TlbEntry newEntry;
bool success = p->pTable->lookup(vaddr, newEntry);
- if(!success && mode != Execute) {
+ if (!success && mode != Execute) {
p->checkAndAllocNextPage(vaddr);
success = p->pTable->lookup(vaddr, newEntry);
}
- if(!success) {
- panic("Tried to execute unmapped address %#x.\n", vaddr);
+ if (!success) {
+ const char *modeStr = "";
+ if (mode == Execute)
+ modeStr = "execute";
+ else if (mode == Read)
+ modeStr = "read";
+ else if (mode == Write)
+ modeStr = "write";
+ else
+ modeStr = "?";
+ panic("Tried to %s unmapped address %#x.\n",
+ modeStr, vaddr);
} else {
Addr alignedVaddr = p->pTable->pageAlign(vaddr);
DPRINTF(TLB, "Mapping %#x to %#x\n", alignedVaddr,
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