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Ruby Memory Vector: Allow more than 4GB of memory

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The memory size variable was a 32-bit int. This meant that the size of the
memory was limited to 4GB. This patch changes the type of the variable to
64-bit to support larger memory sizes. Thanks to Raghuraman Balasubramanian
for bringing this to notice.
This commit is contained in:
Nilay Vaish
2012-08-27 01:00:54 -05:00
parent 1032bc72ed
commit 7122b83d8f
1 changed files with 5 additions and 5 deletions
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10
src/mem/ruby/system/MemoryVector.hh
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@@ -42,11 +42,11 @@ class MemoryVector
{
public:
MemoryVector();
MemoryVector(uint32 size);
MemoryVector(uint64 size);
~MemoryVector();
friend class DirectoryMemory;
void resize(uint32 size); // destructive
void resize(uint64 size); // destructive
void write(const Address & paddr, uint8* data, int len);
uint8* read(const Address & paddr, uint8* data, int len);
@@ -56,7 +56,7 @@ class MemoryVector
private:
uint8* getBlockPtr(const PhysAddress & addr);
uint32 m_size;
uint64 m_size;
uint8** m_pages;
uint32 m_num_pages;
const uint32 m_page_offset_mask;
@@ -73,7 +73,7 @@ MemoryVector::MemoryVector()
}
inline
MemoryVector::MemoryVector(uint32 size)
MemoryVector::MemoryVector(uint64 size)
: m_page_offset_mask(4095)
{
resize(size);
@@ -91,7 +91,7 @@ MemoryVector::~MemoryVector()
}
inline void
MemoryVector::resize(uint32 size)
MemoryVector::resize(uint64 size)
{
if (m_pages != NULL){
for (int i = 0; i < m_num_pages; i++) {