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Merge pull request #113 from wszechpolak/query-virtual-mem 

Implemented NtQueryVirtualMemory
This commit is contained in:
Ben Vanik 2014-08-14 23:23:32 -07:00
parent 5b5dbb7898 50684f8f0d
commit ff8361e5a9
4 changed files with 24 additions and 8 deletions
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1
src/alloy/memory.h
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@ -55,6 +55,7 @@ class Memory {
uint32_t alignment = 0x20) = 0;
virtual int HeapFree(uint64_t address, size_t size) = 0;
virtual size_t QueryInformation(uint64_t base_address, MEMORY_BASIC_INFORMATION mem_info) = 0;
virtual size_t QuerySize(uint64_t base_address) = 0;
virtual int Protect(uint64_t address, size_t size, uint32_t access) = 0;

6
src/xenia/cpu/xenon_memory.cc
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@ -415,6 +415,12 @@ int XenonMemory::HeapFree(uint64_t address, size_t size) {
}
}
size_t XenonMemory::QueryInformation(uint64_t base_address, MEMORY_BASIC_INFORMATION mem_info) {
uint8_t* p = Translate(base_address);
return VirtualQuery(p, &mem_info, sizeof(mem_info));
}
size_t XenonMemory::QuerySize(uint64_t base_address) {
if (base_address >= XENON_MEMORY_VIRTUAL_HEAP_LOW &&
base_address < XENON_MEMORY_VIRTUAL_HEAP_HIGH) {

1
src/xenia/cpu/xenon_memory.h
View File

@ -54,6 +54,7 @@ public:
uint32_t alignment = 0x20) override;
int HeapFree(uint64_t address, size_t size) override;
size_t QueryInformation(uint64_t base_address, MEMORY_BASIC_INFORMATION mem_info) override;
size_t QuerySize(uint64_t base_address) override;
int Protect(uint64_t address, size_t size, uint32_t access) override;

24
src/xenia/kernel/xboxkrnl_memory.cc
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@ -191,15 +191,23 @@ SHIM_CALL NtFreeVirtualMemory_shim(
X_STATUS xeNtQueryVirtualMemory(
uint32_t base_address, X_MEMORY_BASIC_INFORMATION *memory_basic_information, bool swap) {
KernelState* state = shared_kernel_state_;
assert_not_null(state);
// Just pretend that there is no virtual address allocated at given base address
memory_basic_information->base_address = XEROUNDUP(base_address, 4096);
memory_basic_information->allocation_base = NULL;
memory_basic_information->allocation_protect = 0;
memory_basic_information->region_size = 0;
memory_basic_information->state = X_MEM_FREE;
memory_basic_information->protect = X_PAGE_NOACCESS;
memory_basic_information->type = 0;
MEMORY_BASIC_INFORMATION mem_info;
size_t result = state->memory()->QueryInformation(base_address, mem_info);
if (!result) {
return STATUS_INVALID_PARAMETER;
}
memory_basic_information->base_address = (uint32_t) mem_info.BaseAddress;
memory_basic_information->allocation_base = (uint32_t) mem_info.AllocationBase;
memory_basic_information->allocation_protect = mem_info.AllocationProtect;
memory_basic_information->region_size = mem_info.RegionSize;
memory_basic_information->state = mem_info.State;
memory_basic_information->protect = mem_info.Protect;
memory_basic_information->type = mem_info.Type;
if (swap) {
memory_basic_information->base_address = poly::byte_swap(memory_basic_information->base_address);