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ExAllocatePoolTypeWithTag

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This commit is contained in:
Ben Vanik 2014-08-02 16:23:02 -07:00
parent 3f2baafb4b
commit f04c7b8661
1 changed files with 41 additions and 0 deletions
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41
src/xenia/kernel/xboxkrnl_memory.cc
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@ -448,6 +448,44 @@ SHIM_CALL MmGetPhysicalAddress_shim(
}
SHIM_CALL ExAllocatePoolTypeWithTag_shim(
PPCContext* ppc_state, KernelState* state) {
uint32_t size = SHIM_GET_ARG_32(0);
uint32_t tag = SHIM_GET_ARG_32(1);
uint32_t zero = SHIM_GET_ARG_32(2);
XELOGD(
"ExAllocatePoolTypeWithTag(%d, %.8X, %d)",
size, tag, zero);
uint32_t alignment = 8;
uint32_t adjusted_size = size;
if (adjusted_size < 4 * 1024) {
adjusted_size = XEROUNDUP(adjusted_size, 4 * 1024);
} else {
alignment = 4 * 1024;
}
uint32_t addr = (uint32_t)state->memory()->HeapAlloc(
0, adjusted_size, MEMORY_FLAG_ZERO, alignment);
SHIM_SET_RETURN_32(addr);
}
SHIM_CALL ExFreePool_shim(
PPCContext* ppc_state, KernelState* state) {
uint32_t base_address = SHIM_GET_ARG_32(0);
XELOGD(
"ExFreePool(%.8X)",
base_address);
state->memory()->HeapFree(base_address, 0);
}
SHIM_CALL KeLockL2_shim(
PPCContext* ppc_state, KernelState* state) {
// Ignored for now. This is just a perf optimization, I think.
@ -483,6 +521,9 @@ void xe::kernel::xboxkrnl::RegisterMemoryExports(
SHIM_SET_MAPPING("xboxkrnl.exe", MmQueryStatistics, state);
SHIM_SET_MAPPING("xboxkrnl.exe", MmGetPhysicalAddress, state);
SHIM_SET_MAPPING("xboxkrnl.exe", ExAllocatePoolTypeWithTag, state);
SHIM_SET_MAPPING("xboxkrnl.exe", ExFreePool, state);
SHIM_SET_MAPPING("xboxkrnl.exe", KeLockL2, state);
SHIM_SET_MAPPING("xboxkrnl.exe", KeUnlockL2, state);
}