x86: logSize and lruSeq are now optional ckpt params

[gem5.git] / src / arch / x86 / system.cc

diff --git a/src/arch/x86/system.cc b/src/arch/x86/system.cc
index d287e3947f95d0032bfa6fc4dcb070df5168b067..87fb61edc1aa5f247ff7824c9896c5cd9a927a60 100644 (file)
--- a/src/arch/x86/system.cc
+++ b/src/arch/x86/system.cc
@@ -48,7 +48,7 @@
 #include "base/intmath.hh"
 #include "base/trace.hh"
 #include "cpu/thread_context.hh"
-#include "mem/physical.hh"
+#include "mem/port_proxy.hh"
 #include "params/X86System.hh"
 #include "sim/byteswap.hh"
 
@@ -61,8 +61,6 @@ X86System::X86System(Params *p) :
     mpConfigTable(p->intel_mp_table),
     rsdp(p->acpi_description_table_pointer)
 {
-    if (kernel->getArch() == ObjectFile::I386)
-        fatal("Loading a 32 bit x86 kernel is not supported.\n");
 }
 
 static void
@@ -116,6 +114,12 @@ X86System::initState()
 {
     System::initState();
 
+    if (!kernel)
+        fatal("No kernel to load.\n");
+
+    if (kernel->getArch() == ObjectFile::I386)
+        fatal("Loading a 32 bit x86 kernel is not supported.\n");
+
     ThreadContext *tc = threadContexts[0];
     // This is the boot strap processor (BSP). Initialize it to look like
     // the boot loader has just turned control over to the 64 bit OS. We
@@ -137,17 +141,14 @@ X86System::initState()
     const int PDPTBits = 9;
     const int PDTBits = 9;
 
-    // Get a port to write the page tables and descriptor tables.
-    FunctionalPort * physPort = tc->getPhysPort();
-
     /*
      * Set up the gdt.
      */
     uint8_t numGDTEntries = 0;
     // Place holder at selector 0
     uint64_t nullDescriptor = 0;
-    physPort->writeBlob(GDTBase + numGDTEntries * 8,
-            (uint8_t *)(&nullDescriptor), 8);
+    physProxy.writeBlob(GDTBase + numGDTEntries * 8,
+                        (uint8_t *)(&nullDescriptor), 8);
     numGDTEntries++;
 
     //64 bit code segment
@@ -168,8 +169,8 @@ X86System::initState()
     //it's beginning in memory and it's actual data, we'll use an
     //intermediary.
     uint64_t csDescVal = csDesc;
-    physPort->writeBlob(GDTBase + numGDTEntries * 8,
-            (uint8_t *)(&csDescVal), 8);
+    physProxy.writeBlob(GDTBase + numGDTEntries * 8,
+                        (uint8_t *)(&csDescVal), 8);
 
     numGDTEntries++;
 
@@ -191,8 +192,8 @@ X86System::initState()
     dsDesc.limitHigh = 0xF;
     dsDesc.limitLow = 0xFF;
     uint64_t dsDescVal = dsDesc;
-    physPort->writeBlob(GDTBase + numGDTEntries * 8,
-            (uint8_t *)(&dsDescVal), 8);
+    physProxy.writeBlob(GDTBase + numGDTEntries * 8,
+                        (uint8_t *)(&dsDescVal), 8);
 
     numGDTEntries++;
 
@@ -219,8 +220,8 @@ X86System::initState()
     tssDesc.limitHigh = 0xF;
     tssDesc.limitLow = 0xFF;
     uint64_t tssDescVal = tssDesc;
-    physPort->writeBlob(GDTBase + numGDTEntries * 8,
-            (uint8_t *)(&tssDescVal), 8);
+    physProxy.writeBlob(GDTBase + numGDTEntries * 8,
+                        (uint8_t *)(&tssDescVal), 8);
 
     numGDTEntries++;
 
@@ -249,25 +250,25 @@ X86System::initState()
     // read/write, user, not present
     uint64_t pml4e = X86ISA::htog(0x6);
     for (int offset = 0; offset < (1 << PML4Bits) * 8; offset += 8) {
-        physPort->writeBlob(PageMapLevel4 + offset, (uint8_t *)(&pml4e), 8);
+        physProxy.writeBlob(PageMapLevel4 + offset, (uint8_t *)(&pml4e), 8);
     }
     // Point to the only PDPT
     pml4e = X86ISA::htog(0x7 | PageDirPtrTable);
-    physPort->writeBlob(PageMapLevel4, (uint8_t *)(&pml4e), 8);
+    physProxy.writeBlob(PageMapLevel4, (uint8_t *)(&pml4e), 8);
 
     // Page Directory Pointer Table
 
     // read/write, user, not present
     uint64_t pdpe = X86ISA::htog(0x6);
     for (int offset = 0; offset < (1 << PDPTBits) * 8; offset += 8) {
-        physPort->writeBlob(PageDirPtrTable + offset,
-                (uint8_t *)(&pdpe), 8);
+        physProxy.writeBlob(PageDirPtrTable + offset,
+                            (uint8_t *)(&pdpe), 8);
     }
     // Point to the PDTs
     for (int table = 0; table < NumPDTs; table++) {
         pdpe = X86ISA::htog(0x7 | PageDirTable[table]);
-        physPort->writeBlob(PageDirPtrTable + table * 8,
-                (uint8_t *)(&pdpe), 8);
+        physProxy.writeBlob(PageDirPtrTable + table * 8,
+                            (uint8_t *)(&pdpe), 8);
     }
 
     // Page Directory Tables
@@ -278,8 +279,8 @@ X86System::initState()
         for (int offset = 0; offset < (1 << PDTBits) * 8; offset += 8) {
             // read/write, user, present, 4MB
             uint64_t pdte = X86ISA::htog(0x87 | base);
-            physPort->writeBlob(PageDirTable[table] + offset,
-                    (uint8_t *)(&pdte), 8);
+            physProxy.writeBlob(PageDirTable[table] + offset,
+                                (uint8_t *)(&pdte), 8);
             base += pageSize;
         }
     }
@@ -341,16 +342,13 @@ void
 X86System::writeOutSMBiosTable(Addr header,
         Addr &headerSize, Addr &structSize, Addr table)
 {
-    // Get a port to write the table and header to memory.
-    FunctionalPort * physPort = threadContexts[0]->getPhysPort();
-
     // If the table location isn't specified, just put it after the header.
     // The header size as of the 2.5 SMBios specification is 0x1F bytes
     if (!table)
         table = header + 0x1F;
     smbiosTable->setTableAddr(table);
 
-    smbiosTable->writeOut(physPort, header, headerSize, structSize);
+    smbiosTable->writeOut(physProxy, header, headerSize, structSize);
 
     // Do some bounds checking to make sure we at least didn't step on
     // ourselves.
@@ -362,9 +360,6 @@ void
 X86System::writeOutMPTable(Addr fp,
         Addr &fpSize, Addr &tableSize, Addr table)
 {
-    // Get a port to write the table and header to memory.
-    FunctionalPort * physPort = threadContexts[0]->getPhysPort();
-
     // If the table location isn't specified and it exists, just put
     // it after the floating pointer. The fp size as of the 1.4 Intel MP
     // specification is 0x10 bytes.
@@ -374,9 +369,9 @@ X86System::writeOutMPTable(Addr fp,
         mpFloatingPointer->setTableAddr(table);
     }
 
-    fpSize = mpFloatingPointer->writeOut(physPort, fp);
+    fpSize = mpFloatingPointer->writeOut(physProxy, fp);
     if (mpConfigTable)
-        tableSize = mpConfigTable->writeOut(physPort, table);
+        tableSize = mpConfigTable->writeOut(physProxy, table);
     else
         tableSize = 0;