EFI_STATUS
EFIAPI
iTpmMemoryDiscoveredPpiCallback (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDesc,
IN VOID *InvokePpi
)
{
EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS iTpmCommandBuffer;
EFI_PHYSICAL_ADDRESS iTpmResponseBuffer;
PSP_DEBUG ("Psp.iTpmPei.MemoryDiscoveredPpiCallback\n");
//Send PSP mailbox command to ensure Ctrl Area have been initialed
Status = CheckITPMSupported ();
if (Status == EFI_SUCCESS) {
Status = (*PeiServices)->AllocatePages (
PeiServices,
EfiBootServicesData,
EFI_SIZE_TO_PAGES (iTPM_COMMAND_BUFFER_SIZE + \
iTPM_RESPONSE_BUFFER_SIZE),
&iTpmCommandBuffer
);
if (EFI_ERROR (Status)) {
PSP_DEBUG ("Allocate Memory fail\n");
return Status;
}
iTpmResponseBuffer = iTpmCommandBuffer + iTPM_COMMAND_BUFFER_SIZE;
EfiCommonLibSetMem ((VOID *) (UINTN) iTpmCommandBuffer, iTPM_COMMAND_BUFFER_SIZE + iTPM_RESPONSE_BUFFER_SIZE, 0);
Status = iTpmAssignMemory (
(UINTN)iTpmCommandBuffer,
iTPM_COMMAND_BUFFER_SIZE,
(UINTN)iTpmResponseBuffer,
iTPM_RESPONSE_BUFFER_SIZE
);
PSP_DEBUG ("\tAllocate CmdBuf:0x%x ResBuf:0x%x\n", iTpmCommandBuffer, iTpmResponseBuffer);
}
return Status;
}
EFI_BOOTSERVICE
EFI_STATUS
EFIAPI
CoreCreateEventEx (
IN UINT32 Type,
IN EFI_TPL NotifyTpl,
IN EFI_EVENT_NOTIFY NotifyFunction,
IN VOID *NotifyContext,
IN CONST EFI_GUID *EventGroup, OPTIONAL
OUT EFI_EVENT *Event
)
/*++
Routine Description:
Creates a general-purpose event structure
Arguments:
Type - The type of event to create and its mode and attributes
NotifyTpl - The task priority level of event notifications
NotifyFunction - Pointer to the events notification function
NotifyContext - Pointer to the notification functions context; corresponds to
parameter "Context" in the notification function
EventGroup - GUID for EventGroup if NULL act the same as gBS->CreateEvent().
Event - Pointer to the newly created event if the call succeeds; undefined otherwise
Returns:
EFI_SUCCESS - The event structure was created
EFI_INVALID_PARAMETER - One of the parameters has an invalid value
EFI_OUT_OF_RESOURCES - The event could not be allocated
--*/
{
EFI_STATUS Status;
IEVENT *IEvent;
INTN Index;
if ((Event == NULL) || (NotifyTpl == EFI_TPL_APPLICATION)) {
return EFI_INVALID_PARAMETER;
}
//
// For event group, type EFI_EVENT_SIGNAL_EXIT_BOOT_SERVICES and EFI_EVENT_SIGNAL_VIRTUAL_ADDRESS_CHANGE
// are not valid
//
if (EventGroup != NULL) {
if ((Type == EFI_EVENT_SIGNAL_EXIT_BOOT_SERVICES) || (Type == EFI_EVENT_SIGNAL_VIRTUAL_ADDRESS_CHANGE)) {
return EFI_INVALID_PARAMETER;
}
}
//
// Check to make sure no reserved flags are set
//
Status = EFI_INVALID_PARAMETER;
for (Index = 0; Index < (sizeof (mEventTable) / sizeof (UINT32)); Index++) {
if (Type == mEventTable[Index]) {
Status = EFI_SUCCESS;
break;
}
}
if(EFI_ERROR (Status)) {
return EFI_INVALID_PARAMETER;
}
//
// Convert Event type for pre-defined Event groups
//
if (EventGroup != NULL) {
if (EfiCompareGuid ((VOID *) EventGroup, &gEfiEventExitBootServicesGuid)) {
Type = EFI_EVENT_SIGNAL_EXIT_BOOT_SERVICES;
} else if (EfiCompareGuid ((VOID *) EventGroup, &gEfiEventVirtualAddressChangeGuid)) {
Type = EFI_EVENT_SIGNAL_VIRTUAL_ADDRESS_CHANGE;
}
}
//
// If it's a notify type of event, check its parameters
//
if ((Type & (EFI_EVENT_NOTIFY_WAIT | EFI_EVENT_NOTIFY_SIGNAL))) {
//
// Check for an invalid NotifyFunction or NotifyTpl
//
if ((NotifyFunction == NULL) ||
(NotifyTpl < EFI_TPL_APPLICATION) ||
(NotifyTpl >= EFI_TPL_HIGH_LEVEL)) {
return EFI_INVALID_PARAMETER;
}
} else {
//
// No notification needed, zero ignored values
//
NotifyTpl = 0;
NotifyFunction = NULL;
NotifyContext = NULL;
}
//
// Allcoate and initialize a new event structure.
//
Status = CoreAllocatePool (
(Type & EFI_EVENT_RUNTIME) ? EfiRuntimeServicesData: EfiBootServicesData,
sizeof (IEVENT),
(VOID **)&IEvent
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
EfiCommonLibSetMem (IEvent, sizeof (IEVENT), 0);
IEvent->Signature = EVENT_SIGNATURE;
IEvent->Type = Type;
IEvent->NotifyTpl = NotifyTpl;
IEvent->NotifyFunction = NotifyFunction;
IEvent->NotifyContext = (VOID *)NotifyContext;
if (EventGroup != NULL) {
EfiCommonLibCopyMem (&IEvent->EventGroup, (VOID*)EventGroup, sizeof (EFI_GUID));
IEvent->ExFlag = TRUE;
}
*Event = IEvent;
if (Type & EFI_EVENT_RUNTIME) {
//
// Keep a list of all RT events so we can tell the RT AP.
//
IEvent->RuntimeData.Type = Type;
IEvent->RuntimeData.NotifyTpl = NotifyTpl;
IEvent->RuntimeData.NotifyFunction = NotifyFunction;
IEvent->RuntimeData.NotifyContext = NotifyContext;
IEvent->RuntimeData.Event = (EFI_EVENT *) IEvent;
InsertTailList (&gRuntime->EventHead, &IEvent->RuntimeData.Link);
}
CoreAcquireEventLock ();
if ((Type & EFI_EVENT_NOTIFY_SIGNAL) != 0x00000000) {
//
// The Event's NotifyFunction must be queued whenever the event is signaled
//
InsertHeadList (&gEventSignalQueue, &IEvent->SignalLink);
}
CoreReleaseEventLock ();
//
// Done
//
return EFI_SUCCESS;
}