Check in DxeCore for Nt32 platform. Currently, it does not follow PI/UEFI2.1.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3045 6f19259b-4bc3-4df7-8a09-765794883524
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yshang1
297
MdeModulePkg/Core/Dxe/DxeMain/DxeProtocolNotify.c
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297
MdeModulePkg/Core/Dxe/DxeMain/DxeProtocolNotify.c
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/*++
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Copyright (c) 2006 - 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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DxeProtocolNotify.c
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Abstract:
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This file deals with Architecture Protocol (AP) registration in
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the Dxe Core. The mArchProtocols[] array represents a list of
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events that represent the Architectural Protocols.
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--*/
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#include <DxeMain.h>
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//
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// DXE Core Global Variables for all of the Architectural Protocols.
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// If a protocol is installed mArchProtocols[].Present will be TRUE.
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//
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// CoreNotifyOnArchProtocolInstallation () fills in mArchProtocols[].Event
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// and mArchProtocols[].Registration as it creates events for every array
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// entry.
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//
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ARCHITECTURAL_PROTOCOL_ENTRY mArchProtocols[] = {
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{ &gEfiSecurityArchProtocolGuid, (VOID **)&gSecurity, NULL, NULL, FALSE },
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{ &gEfiCpuArchProtocolGuid, (VOID **)&gCpu, NULL, NULL, FALSE },
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{ &gEfiMetronomeArchProtocolGuid, (VOID **)&gMetronome, NULL, NULL, FALSE },
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{ &gEfiTimerArchProtocolGuid, (VOID **)&gTimer, NULL, NULL, FALSE },
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{ &gEfiBdsArchProtocolGuid, (VOID **)&gBds, NULL, NULL, FALSE },
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{ &gEfiWatchdogTimerArchProtocolGuid, (VOID **)&gWatchdogTimer, NULL, NULL, FALSE },
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{ &gEfiRuntimeArchProtocolGuid, (VOID **)&gRuntime, NULL, NULL, FALSE },
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{ &gEfiVariableArchProtocolGuid, (VOID **)NULL, NULL, NULL, FALSE },
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{ &gEfiVariableWriteArchProtocolGuid, (VOID **)NULL, NULL, NULL, FALSE },
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{ &gEfiCapsuleArchProtocolGuid, (VOID **)NULL, NULL, NULL, FALSE},
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{ &gEfiMonotonicCounterArchProtocolGuid, (VOID **)NULL, NULL, NULL, FALSE },
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{ &gEfiResetArchProtocolGuid, (VOID **)NULL, NULL, NULL, FALSE },
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{ &gEfiRealTimeClockArchProtocolGuid, (VOID **)NULL, NULL, NULL, FALSE },
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{ NULL, (VOID **)NULL, NULL, NULL, FALSE }
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};
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EFI_STATUS
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CoreAllEfiServicesAvailable (
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VOID
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)
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/*++
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Routine Description:
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Return TRUE if all AP services are availible.
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Arguments:
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NONE
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Returns:
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EFI_SUCCESS - All AP services are available
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EFI_NOT_FOUND - At least one AP service is not available
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--*/
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{
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ARCHITECTURAL_PROTOCOL_ENTRY *Entry;
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for (Entry = mArchProtocols; Entry->ProtocolGuid != NULL; Entry++) {
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if (!Entry->Present) {
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return EFI_NOT_FOUND;
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}
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}
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return EFI_SUCCESS;
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}
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STATIC
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VOID
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EFIAPI
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GenericArchProtocolNotify (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
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/*++
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Routine Description:
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Notification event handler registered by CoreNotifyOnArchProtocolInstallation ().
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This notify function is registered for every architectural protocol. This handler
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updates mArchProtocol[] array entry with protocol instance data and sets it's
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present flag to TRUE. If any constructor is required it is executed. The EFI
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System Table headers are updated.
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Arguments:
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Event - The Event that is being processed, not used.
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Context - Event Context, not used.
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Returns:
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None
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--*/
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{
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EFI_STATUS Status;
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ARCHITECTURAL_PROTOCOL_ENTRY *Entry;
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VOID *Protocol;
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BOOLEAN Found;
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LIST_ENTRY *Link;
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LIST_ENTRY TempLinkNode;
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Found = FALSE;
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for (Entry = mArchProtocols; Entry->ProtocolGuid != NULL; Entry++) {
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Status = CoreLocateProtocol (Entry->ProtocolGuid, Entry->Registration, &Protocol);
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if (EFI_ERROR (Status)) {
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continue;
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}
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Found = TRUE;
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Entry->Present = TRUE;
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//
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// Update protocol global variable if one exists. Entry->Protocol points to a global variable
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// if one exists in the DXE core for this Architectural Protocol
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//
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if (Entry->Protocol != NULL) {
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*(Entry->Protocol) = Protocol;
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}
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if (CompareGuid (Entry->ProtocolGuid, &gEfiTimerArchProtocolGuid)) {
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//
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// Register the Core timer tick handler with the Timer AP
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//
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gTimer->RegisterHandler (gTimer, CoreTimerTick);
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}
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if (CompareGuid (Entry->ProtocolGuid, &gEfiRuntimeArchProtocolGuid)) {
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//
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// When runtime architectural protocol is available, updates CRC32 in the Debug Table
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//
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CoreUpdateDebugTableCrc32 ();
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//
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// Update the Runtime Architectural protocol with the template that the core was
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// using so there would not need to be a dependency on the Runtime AP
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//
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//
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// Copy all the registered Image to new gRuntime protocol
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//
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for (Link = gRuntimeTemplate.ImageHead.ForwardLink; Link != &gRuntimeTemplate.ImageHead; Link = TempLinkNode.ForwardLink) {
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CopyMem (&TempLinkNode, Link, sizeof(LIST_ENTRY));
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InsertTailList (&gRuntime->ImageHead, Link);
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}
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//
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// Copy all the registered Event to new gRuntime protocol
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//
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for (Link = gRuntimeTemplate.EventHead.ForwardLink; Link != &gRuntimeTemplate.EventHead; Link = TempLinkNode.ForwardLink) {
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CopyMem (&TempLinkNode, Link, sizeof(LIST_ENTRY));
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InsertTailList (&gRuntime->EventHead, Link);
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}
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//
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// Clean up gRuntimeTemplate
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//
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gRuntimeTemplate.ImageHead.ForwardLink = &gRuntimeTemplate.ImageHead;
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gRuntimeTemplate.ImageHead.BackLink = &gRuntimeTemplate.ImageHead;
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gRuntimeTemplate.EventHead.ForwardLink = &gRuntimeTemplate.EventHead;
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gRuntimeTemplate.EventHead.BackLink = &gRuntimeTemplate.EventHead;
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}
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}
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//
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// It's over kill to do them all every time, but it saves a lot of code.
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//
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if (Found) {
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CalculateEfiHdrCrc (&gDxeCoreRT->Hdr);
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CalculateEfiHdrCrc (&gDxeCoreBS->Hdr);
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CalculateEfiHdrCrc (&gDxeCoreST->Hdr);
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CalculateEfiHdrCrc (&gDxeCoreDS->Hdr);
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}
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}
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VOID
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CoreNotifyOnArchProtocolInstallation (
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VOID
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)
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/*++
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Routine Description:
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Creates an event that is fired everytime a Protocol of a specific type is installed
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Arguments:
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NONE
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Returns:
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NONE
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--*/
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{
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EFI_STATUS Status;
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ARCHITECTURAL_PROTOCOL_ENTRY *Entry;
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for (Entry = mArchProtocols; Entry->ProtocolGuid != NULL; Entry++) {
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//
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// Create the event
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//
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Status = CoreCreateEvent (
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EVT_NOTIFY_SIGNAL,
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TPL_CALLBACK,
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GenericArchProtocolNotify,
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NULL,
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&Entry->Event
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);
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ASSERT_EFI_ERROR(Status);
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//
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// Register for protocol notifactions on this event
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//
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Status = CoreRegisterProtocolNotify (
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Entry->ProtocolGuid,
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Entry->Event,
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&Entry->Registration
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);
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ASSERT_EFI_ERROR(Status);
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}
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}
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//
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// Following is needed to display missing architectural protocols in debug builds
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//
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typedef struct {
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EFI_GUID *ProtocolGuid;
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CHAR16 *GuidString;
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} GUID_TO_STRING_PROTOCOL_ENTRY;
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static const GUID_TO_STRING_PROTOCOL_ENTRY MissingProtocols[] = {
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{ &gEfiSecurityArchProtocolGuid, (CHAR16 *)L"Security" },
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{ &gEfiCpuArchProtocolGuid, (CHAR16 *)L"CPU" },
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{ &gEfiMetronomeArchProtocolGuid, (CHAR16 *)L"Metronome" },
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{ &gEfiTimerArchProtocolGuid, (CHAR16 *)L"Timer" },
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{ &gEfiBdsArchProtocolGuid, (CHAR16 *)L"Bds" },
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{ &gEfiWatchdogTimerArchProtocolGuid, (CHAR16 *)L"Watchdog Timer" },
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{ &gEfiRuntimeArchProtocolGuid, (CHAR16 *)L"Runtime" },
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{ &gEfiVariableArchProtocolGuid, (CHAR16 *)L"Variable" },
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{ &gEfiVariableWriteArchProtocolGuid, (CHAR16 *)L"Variable Write" },
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{ &gEfiCapsuleArchProtocolGuid, (CHAR16 *)L"Capsule" },
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{ &gEfiMonotonicCounterArchProtocolGuid, (CHAR16 *)L"Monotonic Counter" },
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{ &gEfiResetArchProtocolGuid, (CHAR16 *)L"Reset" },
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// { &gEfiStatusCodeRuntimeProtocolGuid, (CHAR16 *)L"Status Code" },
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{ &gEfiRealTimeClockArchProtocolGuid, (CHAR16 *)L"Real Time Clock" }
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};
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VOID
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CoreDisplayMissingArchProtocols (
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VOID
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)
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/*++
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Routine Description:
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Displays Architectural protocols that were not loaded and are required for DXE core to function
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Only used in Debug Builds
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Arguments:
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NONE
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Returns:
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NONE
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--*/
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{
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const GUID_TO_STRING_PROTOCOL_ENTRY *MissingEntry;
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ARCHITECTURAL_PROTOCOL_ENTRY *Entry;
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for (Entry = mArchProtocols; Entry->ProtocolGuid != NULL; Entry++) {
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if (!Entry->Present) {
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MissingEntry = MissingProtocols;
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for (MissingEntry = MissingProtocols; TRUE ; MissingEntry++) {
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if (CompareGuid (Entry->ProtocolGuid, MissingEntry->ProtocolGuid)) {
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DEBUG ((EFI_D_ERROR, "\n%s Arch Protocol not present!!\n", MissingEntry->GuidString));
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break;
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}
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}
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}
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}
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}
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