summaryrefslogtreecommitdiff
path: root/src/arch
diff options
context:
space:
mode:
Diffstat (limited to 'src/arch')
-rw-r--r--src/arch/alpha/faults.cc22
-rw-r--r--src/arch/sparc/faults.cc25
-rw-r--r--src/arch/x86/tlb.cc16
3 files changed, 41 insertions, 22 deletions
diff --git a/src/arch/alpha/faults.cc b/src/arch/alpha/faults.cc
index 89b0ecea8..3433844c1 100644
--- a/src/arch/alpha/faults.cc
+++ b/src/arch/alpha/faults.cc
@@ -196,11 +196,14 @@ ItbPageFault::invoke(ThreadContext *tc, const StaticInstPtr &inst)
}
Process *p = tc->getProcessPtr();
- TlbEntry *entry = p->pTable->lookup(pc);
- panic_if(!entry, "Tried to execute unmapped address %#x.\n", pc);
+ const EmulationPageTable::Entry *pte = p->pTable->lookup(pc);
+ panic_if(!pte, "Tried to execute unmapped address %#x.\n", pc);
VAddr vaddr(pc);
- dynamic_cast<TLB *>(tc->getITBPtr())->insert(vaddr.page(), *entry);
+ TlbEntry entry(p->pTable->pid(), vaddr.page(), pte->paddr,
+ pte->flags & EmulationPageTable::Uncacheable,
+ pte->flags & EmulationPageTable::ReadOnly);
+ dynamic_cast<TLB *>(tc->getITBPtr())->insert(vaddr.page(), entry);
}
void
@@ -212,11 +215,14 @@ NDtbMissFault::invoke(ThreadContext *tc, const StaticInstPtr &inst)
}
Process *p = tc->getProcessPtr();
- TlbEntry *entry = p->pTable->lookup(vaddr);
- if (!entry && p->fixupStackFault(vaddr))
- entry = p->pTable->lookup(vaddr);
- panic_if(!entry, "Tried to access unmapped address %#x.\n", (Addr)vaddr);
- dynamic_cast<TLB *>(tc->getDTBPtr())->insert(vaddr.page(), *entry);
+ const EmulationPageTable::Entry *pte = p->pTable->lookup(vaddr);
+ if (!pte && p->fixupStackFault(vaddr))
+ pte = p->pTable->lookup(vaddr);
+ panic_if(!pte, "Tried to access unmapped address %#x.\n", (Addr)vaddr);
+ TlbEntry entry(p->pTable->pid(), vaddr.page(), pte->paddr,
+ pte->flags & EmulationPageTable::Uncacheable,
+ pte->flags & EmulationPageTable::ReadOnly);
+ dynamic_cast<TLB *>(tc->getDTBPtr())->insert(vaddr.page(), entry);
}
} // namespace AlphaISA
diff --git a/src/arch/sparc/faults.cc b/src/arch/sparc/faults.cc
index 0b6a28927..0f042b4ae 100644
--- a/src/arch/sparc/faults.cc
+++ b/src/arch/sparc/faults.cc
@@ -35,6 +35,7 @@
#include "arch/sparc/isa_traits.hh"
#include "arch/sparc/process.hh"
+#include "arch/sparc/tlb.hh"
#include "arch/sparc/types.hh"
#include "base/bitfield.hh"
#include "base/trace.hh"
@@ -629,8 +630,8 @@ FastInstructionAccessMMUMiss::invoke(ThreadContext *tc,
}
Process *p = tc->getProcessPtr();
- TlbEntry *entry = p->pTable->lookup(vaddr);
- panic_if(!entry, "Tried to execute unmapped address %#x.\n", vaddr);
+ const EmulationPageTable::Entry *pte = p->pTable->lookup(vaddr);
+ panic_if(!pte, "Tried to execute unmapped address %#x.\n", vaddr);
Addr alignedvaddr = p->pTable->pageAlign(vaddr);
@@ -662,13 +663,17 @@ FastInstructionAccessMMUMiss::invoke(ThreadContext *tc,
// the logic works out to the following for the context.
int context_id = (is_real_address || trapped) ? 0 : primary_context;
+ TlbEntry entry(p->pTable->pid(), alignedvaddr, pte->paddr,
+ pte->flags & EmulationPageTable::Uncacheable,
+ pte->flags & EmulationPageTable::ReadOnly);
+
// Insert the TLB entry.
// The entry specifying whether the address is "real" is set to
// false for syscall emulation mode regardless of whether the
// address is real in preceding code. Not sure sure that this is
// correct, but also not sure if it matters at all.
dynamic_cast<TLB *>(tc->getITBPtr())->
- insert(alignedvaddr, partition_id, context_id, false, entry->pte);
+ insert(alignedvaddr, partition_id, context_id, false, entry.pte);
}
void
@@ -680,10 +685,10 @@ FastDataAccessMMUMiss::invoke(ThreadContext *tc, const StaticInstPtr &inst)
}
Process *p = tc->getProcessPtr();
- TlbEntry *entry = p->pTable->lookup(vaddr);
- if (!entry && p->fixupStackFault(vaddr))
- entry = p->pTable->lookup(vaddr);
- panic_if(!entry, "Tried to access unmapped address %#x.\n", vaddr);
+ const EmulationPageTable::Entry *pte = p->pTable->lookup(vaddr);
+ if (!pte && p->fixupStackFault(vaddr))
+ pte = p->pTable->lookup(vaddr);
+ panic_if(!pte, "Tried to access unmapped address %#x.\n", vaddr);
Addr alignedvaddr = p->pTable->pageAlign(vaddr);
@@ -745,13 +750,17 @@ FastDataAccessMMUMiss::invoke(ThreadContext *tc, const StaticInstPtr &inst)
// The partition id distinguishes between virtualized environments.
int const partition_id = 0;
+ TlbEntry entry(p->pTable->pid(), alignedvaddr, pte->paddr,
+ pte->flags & EmulationPageTable::Uncacheable,
+ pte->flags & EmulationPageTable::ReadOnly);
+
// Insert the TLB entry.
// The entry specifying whether the address is "real" is set to
// false for syscall emulation mode regardless of whether the
// address is real in preceding code. Not sure sure that this is
// correct, but also not sure if it matters at all.
dynamic_cast<TLB *>(tc->getDTBPtr())->
- insert(alignedvaddr, partition_id, context_id, false, entry->pte);
+ insert(alignedvaddr, partition_id, context_id, false, entry.pte);
}
void
diff --git a/src/arch/x86/tlb.cc b/src/arch/x86/tlb.cc
index 93369494d..a3aec1676 100644
--- a/src/arch/x86/tlb.cc
+++ b/src/arch/x86/tlb.cc
@@ -357,22 +357,26 @@ TLB::translate(RequestPtr req, ThreadContext *tc, Translation *translation,
assert(entry);
} else {
Process *p = tc->getProcessPtr();
- TlbEntry *newEntry = p->pTable->lookup(vaddr);
- if (!newEntry && mode != Execute) {
+ const EmulationPageTable::Entry *pte =
+ p->pTable->lookup(vaddr);
+ if (!pte && mode != Execute) {
// Check if we just need to grow the stack.
if (p->fixupStackFault(vaddr)) {
// If we did, lookup the entry for the new page.
- newEntry = p->pTable->lookup(vaddr);
+ pte = p->pTable->lookup(vaddr);
}
}
- if (!newEntry) {
+ if (!pte) {
return std::make_shared<PageFault>(vaddr, true, mode,
true, false);
} else {
Addr alignedVaddr = p->pTable->pageAlign(vaddr);
DPRINTF(TLB, "Mapping %#x to %#x\n", alignedVaddr,
- newEntry->pageStart());
- entry = insert(alignedVaddr, *newEntry);
+ pte->paddr);
+ entry = insert(alignedVaddr, TlbEntry(
+ p->pTable->pid(), alignedVaddr, pte->paddr,
+ pte->flags & EmulationPageTable::Uncacheable,
+ pte->flags & EmulationPageTable::ReadOnly));
}
DPRINTF(TLB, "Miss was serviced.\n");
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-26 20:55:17 +0000