diff options
| -rw-r--r-- | src/mem/abstract_mem.cc | 10 | ||||
| -rw-r--r-- | src/mem/abstract_mem.hh | 4 |
2 files changed, 14 insertions, 0 deletions
diff --git a/src/mem/abstract_mem.cc b/src/mem/abstract_mem.cc index 581fc14cc..f0d626940 100644 --- a/src/mem/abstract_mem.cc +++ b/src/mem/abstract_mem.cc @@ -58,6 +58,9 @@ using namespace std; AbstractMemory::AbstractMemory(const Params *p) : MemObject(p), range(params()->range), pmemAddr(NULL), + backdoor(params()->range, nullptr, + (MemBackdoor::Flags)(MemBackdoor::Readable | + MemBackdoor::Writeable)), confTableReported(p->conf_table_reported), inAddrMap(p->in_addr_map), kvmMap(p->kvm_map), _system(NULL) { @@ -75,6 +78,13 @@ AbstractMemory::init() void AbstractMemory::setBackingStore(uint8_t* pmem_addr) { + // If there was an existing backdoor, let everybody know it's going away. + if (backdoor.ptr()) + backdoor.invalidate(); + + // The back door can't handle interleaved memory. + backdoor.ptr(range.interleaved() ? nullptr : pmem_addr); + pmemAddr = pmem_addr; } diff --git a/src/mem/abstract_mem.hh b/src/mem/abstract_mem.hh index 4dd255f5f..cf9ca7439 100644 --- a/src/mem/abstract_mem.hh +++ b/src/mem/abstract_mem.hh @@ -49,6 +49,7 @@ #ifndef __MEM_ABSTRACT_MEMORY_HH__ #define __MEM_ABSTRACT_MEMORY_HH__ +#include "mem/backdoor.hh" #include "mem/mem_object.hh" #include "params/AbstractMemory.hh" #include "sim/stats.hh" @@ -110,6 +111,9 @@ class AbstractMemory : public MemObject // Pointer to host memory used to implement this memory uint8_t* pmemAddr; + // Backdoor to access this memory. + MemBackdoor backdoor; + // Enable specific memories to be reported to the configuration table const bool confTableReported; |