SE: move page allocation from PageTable to Process

PageTable supported an allocate() call that called back
through the Process to allocate memory, but did not have
a method to map addresses without allocating new pages.
It makes more sense for Process to do the allocation, so
this method was renamed allocateMem() and moved to Process,
and uses a new map() call on PageTable.

The remaining uses of the process pointer in PageTable
were only to get the name and the PID, so by passing these
in directly in the constructor, we can make PageTable
completely independent of Process.

7 files changed, 10 insertions, 14 deletions

diff --git a/src/arch/alpha/process.cc b/src/arch/alpha/process.cc
index 637fbe065..4a3079264 100644
--- a/src/arch/alpha/process.cc
+++ b/src/arch/alpha/process.cc
@@ -126,7 +126,7 @@ AlphaLiveProcess::argsInit(int intSize, int pageSize)
     stack_min = roundDown(stack_min, pageSize);
     stack_size = stack_base - stack_min;
     // map memory
-    pTable->allocate(stack_min, roundUp(stack_size, pageSize));
+    allocateMem(stack_min, roundUp(stack_size, pageSize));
 
     // map out initial stack contents
     Addr argv_array_base = stack_min + intSize; // room for argc
diff --git a/src/arch/arm/linux/process.cc b/src/arch/arm/linux/process.cc
index f17749252..c65962d00 100644
--- a/src/arch/arm/linux/process.cc
+++ b/src/arch/arm/linux/process.cc
@@ -503,7 +503,7 @@ void
 ArmLinuxProcess::initState()
 {
     ArmLiveProcess::initState();
-    pTable->allocate(commPage, PageBytes);
+    allocateMem(commPage, PageBytes);
     ThreadContext *tc = system->getThreadContext(contextIds[0]);
 
     uint8_t swiNeg1[] = {
diff --git a/src/arch/arm/process.cc b/src/arch/arm/process.cc
index c3b02744e..aa5d7dfce 100644
--- a/src/arch/arm/process.cc
+++ b/src/arch/arm/process.cc
@@ -251,8 +251,7 @@ ArmLiveProcess::argsInit(int intSize, int pageSize)
     stack_size = stack_base - stack_min;
 
     // map memory
-    pTable->allocate(roundDown(stack_min, pageSize),
-                     roundUp(stack_size, pageSize));
+    allocateMem(roundDown(stack_min, pageSize), roundUp(stack_size, pageSize));
 
     // map out initial stack contents
     uint32_t sentry_base = stack_base - sentry_size;
diff --git a/src/arch/mips/process.cc b/src/arch/mips/process.cc
index c62b60b98..5643ff18a 100644
--- a/src/arch/mips/process.cc
+++ b/src/arch/mips/process.cc
@@ -136,7 +136,7 @@ MipsLiveProcess::argsInit(int pageSize)
     stack_min = roundDown(stack_min, pageSize);
     stack_size = stack_base - stack_min;
     // map memory
-    pTable->allocate(stack_min, roundUp(stack_size, pageSize));
+    allocateMem(stack_min, roundUp(stack_size, pageSize));
 
     // map out initial stack contents
     IntType argv_array_base = stack_min + intSize; // room for argc
diff --git a/src/arch/power/process.cc b/src/arch/power/process.cc
index d12e3eab6..788c7cc0c 100644
--- a/src/arch/power/process.cc
+++ b/src/arch/power/process.cc
@@ -187,8 +187,7 @@ PowerLiveProcess::argsInit(int intSize, int pageSize)
     stack_size = stack_base - stack_min;
 
     // map memory
-    pTable->allocate(roundDown(stack_min, pageSize),
-                     roundUp(stack_size, pageSize));
+    allocateMem(roundDown(stack_min, pageSize), roundUp(stack_size, pageSize));
 
     // map out initial stack contents
     uint32_t sentry_base = stack_base - sentry_size;
diff --git a/src/arch/sparc/process.cc b/src/arch/sparc/process.cc
index 3eee3d137..5c594dcbc 100644
--- a/src/arch/sparc/process.cc
+++ b/src/arch/sparc/process.cc
@@ -316,8 +316,7 @@ SparcLiveProcess::argsInit(int pageSize)
     stack_size = stack_base - stack_min;
 
     // Allocate space for the stack
-    pTable->allocate(roundDown(stack_min, pageSize),
-                     roundUp(stack_size, pageSize));
+    allocateMem(roundDown(stack_min, pageSize), roundUp(stack_size, pageSize));
 
     // map out initial stack contents
     IntType sentry_base = stack_base - sentry_size;
diff --git a/src/arch/x86/process.cc b/src/arch/x86/process.cc
index 79a140776..f5ba787c9 100644
--- a/src/arch/x86/process.cc
+++ b/src/arch/x86/process.cc
@@ -167,7 +167,7 @@ X86_64LiveProcess::initState()
     argsInit(sizeof(uint64_t), VMPageSize);
 
        // Set up the vsyscall page for this process.
-    pTable->allocate(vsyscallPage.base, vsyscallPage.size);
+    allocateMem(vsyscallPage.base, vsyscallPage.size);
     uint8_t vtimeBlob[] = {
         0x48,0xc7,0xc0,0xc9,0x00,0x00,0x00,    // mov    $0xc9,%rax
         0x0f,0x05,                             // syscall
@@ -265,7 +265,7 @@ I386LiveProcess::initState()
      * Set up a GDT for this process. The whole GDT wouldn't really be for
      * this process, but the only parts we care about are.
      */
-    pTable->allocate(_gdtStart, _gdtSize);
+    allocateMem(_gdtStart, _gdtSize);
     uint64_t zero = 0;
     assert(_gdtSize % sizeof(zero) == 0);
     for (Addr gdtCurrent = _gdtStart;
@@ -274,7 +274,7 @@ I386LiveProcess::initState()
     }
 
     // Set up the vsyscall page for this process.
-    pTable->allocate(vsyscallPage.base, vsyscallPage.size);
+    allocateMem(vsyscallPage.base, vsyscallPage.size);
     uint8_t vsyscallBlob[] = {
         0x51,       // push %ecx
         0x52,       // push %edp
@@ -577,8 +577,7 @@ X86LiveProcess::argsInit(int pageSize,
     stack_size = stack_base - stack_min;
 
     // map memory
-    pTable->allocate(roundDown(stack_min, pageSize),
-                     roundUp(stack_size, pageSize));
+    allocateMem(roundDown(stack_min, pageSize), roundUp(stack_size, pageSize));
 
     // map out initial stack contents
     IntType sentry_base = stack_base - sentry_size;