// Unload handler
_Use_decl_annotations_ static void DriverpDriverUnload(
PDRIVER_OBJECT driver_object) {
UNREFERENCED_PARAMETER(driver_object);
PAGED_CODE();
HYPERPLATFORM_COMMON_DBG_BREAK();
VmTermination();
PowerCallbackTermination();
UtilTermination();
PerfTermination();
LogTermination();
}
// A driver entry point
_Use_decl_annotations_ NTSTATUS DriverEntry(PDRIVER_OBJECT driver_object,
PUNICODE_STRING registry_path) {
UNREFERENCED_PARAMETER(registry_path);
PAGED_CODE();
static const wchar_t kLogFilePath[] = L"\\SystemRoot\\HyperPlatform.log";
static const auto kLogLevel =
(IsReleaseBuild()) ? kLogPutLevelInfo | kLogOptDisableFunctionName
: kLogPutLevelDebug | kLogOptDisableFunctionName;
auto status = STATUS_UNSUCCESSFUL;
driver_object->DriverUnload = DriverpDriverUnload;
HYPERPLATFORM_COMMON_DBG_BREAK();
// Request NX Non-Paged Pool when available
ExInitializeDriverRuntime(DrvRtPoolNxOptIn);
// Initialize log functions
bool need_reinitialization = false;
status = LogInitialization(kLogLevel, kLogFilePath);
if (status == STATUS_REINITIALIZATION_NEEDED) {
need_reinitialization = true;
} else if (!NT_SUCCESS(status)) {
return status;
}
// Test if the system is supported
if (!DriverpIsSuppoetedOS()) {
LogTermination();
return STATUS_CANCELLED;
}
// Initialize global variables
status = GlobalObjectInitialization();
if (!NT_SUCCESS(status)) {
LogTermination();
return status;
}
// Initialize perf functions
status = PerfInitialization();
if (!NT_SUCCESS(status)) {
GlobalObjectTermination();
LogTermination();
return status;
}
// Initialize utility functions
status = UtilInitialization(driver_object);
if (!NT_SUCCESS(status)) {
PerfTermination();
GlobalObjectTermination();
LogTermination();
return status;
}
// Initialize power callback
status = PowerCallbackInitialization();
if (!NT_SUCCESS(status)) {
UtilTermination();
PerfTermination();
GlobalObjectTermination();
LogTermination();
return status;
}
// Initialize hot-plug callback
status = HotplugCallbackInitialization();
if (!NT_SUCCESS(status)) {
PowerCallbackTermination();
UtilTermination();
PerfTermination();
GlobalObjectTermination();
LogTermination();
return status;
}
// Virtualize all processors
status = VmInitialization();
if (!NT_SUCCESS(status)) {
HotplugCallbackTermination();
PowerCallbackTermination();
UtilTermination();
PerfTermination();
GlobalObjectTermination();
LogTermination();
return status;
}
// Register re-initialization for the log functions if needed
if (need_reinitialization) {
LogRegisterReinitialization(driver_object);
}
HYPERPLATFORM_LOG_INFO("The VMM has been installed.");
return status;
}
