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authorBrad Beckmann <Brad.Beckmann@amd.com>2012-07-10 22:51:54 -0700
committerBrad Beckmann <Brad.Beckmann@amd.com>2012-07-10 22:51:54 -0700
commit52540b1b785aac9b307dfcc976527d94899deb94 (patch)
tree1a35560c0a4258bd7461bd8a25fdccc7c95d46b6
parent2e47aaabc0f5b3ab3d4507b023f0421fde9713c5 (diff)
downloadgem5-52540b1b785aac9b307dfcc976527d94899deb94.tar.xz
x86: logSize and lruSeq are now optional ckpt params
-rw-r--r--src/arch/x86/pagetable.cc16
1 files changed, 14 insertions, 2 deletions
diff --git a/src/arch/x86/pagetable.cc b/src/arch/x86/pagetable.cc
index bfd2efe61..40d5e0984 100644
--- a/src/arch/x86/pagetable.cc
+++ b/src/arch/x86/pagetable.cc
@@ -37,6 +37,7 @@
* Authors: Gabe Black
*/
+#include <cmath>
#include "arch/x86/isa_traits.hh"
#include "arch/x86/pagetable.hh"
#include "sim/serialize.hh"
@@ -69,14 +70,25 @@ TlbEntry::unserialize(Checkpoint *cp, const std::string &section)
{
UNSERIALIZE_SCALAR(paddr);
UNSERIALIZE_SCALAR(vaddr);
- UNSERIALIZE_SCALAR(logBytes);
+ //
+ // The logBytes scalar variable replaced the previous size variable.
+ // The following code maintains backwards compatibility with previous
+ // checkpoints using the old size variable.
+ //
+ if (UNSERIALIZE_OPT_SCALAR(logBytes) == false) {
+ int size;
+ UNSERIALIZE_SCALAR(size);
+ logBytes = log2(size);
+ }
UNSERIALIZE_SCALAR(writable);
UNSERIALIZE_SCALAR(user);
UNSERIALIZE_SCALAR(uncacheable);
UNSERIALIZE_SCALAR(global);
UNSERIALIZE_SCALAR(patBit);
UNSERIALIZE_SCALAR(noExec);
- UNSERIALIZE_SCALAR(lruSeq);
+ if (UNSERIALIZE_OPT_SCALAR(lruSeq) == false) {
+ lruSeq = 0;
+ }
}
}