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| author | Gabe Black <gblack@eecs.umich.edu> | 2009-11-08 22:49:58 -0800 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2009-11-08 22:49:58 -0800 |
| commit | bbbfdee2ed4feb5e8e448920e5d51701a2192ee1 (patch) | |
| tree | 4da65b9782070931315466e16f8020ac2dc79aa1 | |
| parent | 44e912c6bd8828a6a3774c1fa54a1f4689383243 (diff) | |
| download | gem5-bbbfdee2ed4feb5e8e448920e5d51701a2192ee1.tar.xz | |
X86: Don't panic on faults on prefetches in SE mode.
| -rw-r--r-- | src/arch/x86/tlb.cc | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/src/arch/x86/tlb.cc b/src/arch/x86/tlb.cc index 0d69d05c9..d7959da2c 100644 --- a/src/arch/x86/tlb.cc +++ b/src/arch/x86/tlb.cc @@ -637,17 +637,21 @@ TLB::translate(RequestPtr req, ThreadContext *tc, Translation *translation, success = p->pTable->lookup(vaddr, newEntry); } 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); + if (req->isPrefetch()) { + return new PageFault(vaddr, true, mode, true, false); + } else { + 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, |