OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c

   1 /** @file
   2   Platform BDS customizations.
   3
   4   Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
   5   This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #include "BdsPlatform.h"
  16 #include "QemuBootOrder.h"
  17
  18
  19 //
  20 // Global data
  21 //
  22
  23 VOID          *mEfiDevPathNotifyReg;
  24 EFI_EVENT     mEfiDevPathEvent;
  25 VOID          *mEmuVariableEventReg;
  26 EFI_EVENT     mEmuVariableEvent;
  27 BOOLEAN       mDetectVgaOnly;
  28
  29
  30 //
  31 // Type definitions
  32 //
  33
  34 typedef
  35 EFI_STATUS
  36 (EFIAPI *PROTOCOL_INSTANCE_CALLBACK)(
  37   IN EFI_HANDLE           Handle,
  38   IN VOID                 *Instance,
  39   IN VOID                 *Context
  40   );
  41
  42 /**
  43   @param[in]  Handle - Handle of PCI device instance
  44   @param[in]  PciIo - PCI IO protocol instance
  45   @param[in]  Pci - PCI Header register block
  46 **/
  47 typedef
  48 EFI_STATUS
  49 (EFIAPI *VISIT_PCI_INSTANCE_CALLBACK)(
  50   IN EFI_HANDLE           Handle,
  51   IN EFI_PCI_IO_PROTOCOL  *PciIo,
  52   IN PCI_TYPE00           *Pci
  53   );
  54
  55
  56 //
  57 // Function prototypes
  58 //
  59
  60 EFI_STATUS
  61 VisitAllInstancesOfProtocol (
  62   IN EFI_GUID                    *Id,
  63   IN PROTOCOL_INSTANCE_CALLBACK  CallBackFunction,
  64   IN VOID                        *Context
  65   );
  66
  67 EFI_STATUS
  68 VisitAllPciInstancesOfProtocol (
  69   IN VISIT_PCI_INSTANCE_CALLBACK CallBackFunction
  70   );
  71
  72 VOID
  73 InstallDevicePathCallback (
  74   VOID
  75   );
  76
  77 //
  78 // BDS Platform Functions
  79 //
  80 VOID
  81 EFIAPI
  82 PlatformBdsInit (
  83   VOID
  84   )
  85 /*++
  86
  87 Routine Description:
  88
  89   Platform Bds init. Incude the platform firmware vendor, revision
  90   and so crc check.
  91
  92 Arguments:
  93
  94 Returns:
  95
  96   None.
  97
  98 --*/
  99 {
 100   DEBUG ((EFI_D_INFO, "PlatformBdsInit\n"));
 101   InstallDevicePathCallback ();
 102 }
 103
 104
 105 EFI_STATUS
 106 ConnectRootBridge (
 107   VOID
 108   )
 109 /*++
 110
 111 Routine Description:
 112
 113   Connect RootBridge
 114
 115 Arguments:
 116
 117   None.
 118
 119 Returns:
 120
 121   EFI_SUCCESS             - Connect RootBridge successfully.
 122   EFI_STATUS              - Connect RootBridge fail.
 123
 124 --*/
 125 {
 126   EFI_STATUS                Status;
 127   EFI_HANDLE                RootHandle;
 128
 129   //
 130   // Make all the PCI_IO protocols on PCI Seg 0 show up
 131   //
 132   BdsLibConnectDevicePath (gPlatformRootBridges[0]);
 133
 134   Status = gBS->LocateDevicePath (
 135                   &gEfiDevicePathProtocolGuid,
 136                   &gPlatformRootBridges[0],
 137                   &RootHandle
 138                   );
 139   if (EFI_ERROR (Status)) {
 140     return Status;
 141   }
 142
 143   Status = gBS->ConnectController (RootHandle, NULL, NULL, FALSE);
 144   if (EFI_ERROR (Status)) {
 145     return Status;
 146   }
 147
 148   return EFI_SUCCESS;
 149 }
 150
 151
 152 EFI_STATUS
 153 PrepareLpcBridgeDevicePath (
 154   IN EFI_HANDLE                DeviceHandle
 155   )
 156 /*++
 157
 158 Routine Description:
 159
 160   Add IsaKeyboard to ConIn,
 161   add IsaSerial to ConOut, ConIn, ErrOut.
 162   LPC Bridge: 06 01 00
 163
 164 Arguments:
 165
 166   DeviceHandle            - Handle of PCIIO protocol.
 167
 168 Returns:
 169
 170   EFI_SUCCESS             - LPC bridge is added to ConOut, ConIn, and ErrOut.
 171   EFI_STATUS              - No LPC bridge is added.
 172
 173 --*/
 174 {
 175   EFI_STATUS                Status;
 176   EFI_DEVICE_PATH_PROTOCOL  *DevicePath;
 177   EFI_DEVICE_PATH_PROTOCOL  *TempDevicePath;
 178   CHAR16                    *DevPathStr;
 179
 180   DevicePath = NULL;
 181   Status = gBS->HandleProtocol (
 182                   DeviceHandle,
 183                   &gEfiDevicePathProtocolGuid,
 184                   (VOID*)&DevicePath
 185                   );
 186   if (EFI_ERROR (Status)) {
 187     return Status;
 188   }
 189   TempDevicePath = DevicePath;
 190
 191   //
 192   // Register Keyboard
 193   //
 194   DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gPnpPs2KeyboardDeviceNode);
 195
 196   BdsLibUpdateConsoleVariable (VarConsoleInp, DevicePath, NULL);
 197
 198   //
 199   // Register COM1
 200   //
 201   DevicePath = TempDevicePath;
 202   gPnp16550ComPortDeviceNode.UID = 0;
 203
 204   DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gPnp16550ComPortDeviceNode);
 205   DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gUartDeviceNode);
 206   DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gTerminalTypeDeviceNode);
 207
 208   //
 209   // Print Device Path
 210   //
 211   DevPathStr = DevicePathToStr(DevicePath);
 212   if (DevPathStr != NULL) {
 213     DEBUG((
 214       EFI_D_INFO,
 215       "BdsPlatform.c+%d: COM%d DevPath: %s\n",
 216       __LINE__,
 217       gPnp16550ComPortDeviceNode.UID + 1,
 218       DevPathStr
 219       ));
 220     FreePool(DevPathStr);
 221   }
 222
 223   BdsLibUpdateConsoleVariable (VarConsoleOut, DevicePath, NULL);
 224   BdsLibUpdateConsoleVariable (VarConsoleInp, DevicePath, NULL);
 225   BdsLibUpdateConsoleVariable (VarErrorOut, DevicePath, NULL);
 226
 227   //
 228   // Register COM2
 229   //
 230   DevicePath = TempDevicePath;
 231   gPnp16550ComPortDeviceNode.UID = 1;
 232
 233   DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gPnp16550ComPortDeviceNode);
 234   DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gUartDeviceNode);
 235   DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gTerminalTypeDeviceNode);
 236
 237   //
 238   // Print Device Path
 239   //
 240   DevPathStr = DevicePathToStr(DevicePath);
 241   if (DevPathStr != NULL) {
 242     DEBUG((
 243       EFI_D_INFO,
 244       "BdsPlatform.c+%d: COM%d DevPath: %s\n",
 245       __LINE__,
 246       gPnp16550ComPortDeviceNode.UID + 1,
 247       DevPathStr
 248       ));
 249     FreePool(DevPathStr);
 250   }
 251
 252   BdsLibUpdateConsoleVariable (VarConsoleOut, DevicePath, NULL);
 253   BdsLibUpdateConsoleVariable (VarConsoleInp, DevicePath, NULL);
 254   BdsLibUpdateConsoleVariable (VarErrorOut, DevicePath, NULL);
 255
 256   return EFI_SUCCESS;
 257 }
 258
 259 EFI_STATUS
 260 GetGopDevicePath (
 261    IN  EFI_DEVICE_PATH_PROTOCOL *PciDevicePath,
 262    OUT EFI_DEVICE_PATH_PROTOCOL **GopDevicePath
 263    )
 264 {
 265   UINTN                           Index;
 266   EFI_STATUS                      Status;
 267   EFI_HANDLE                      PciDeviceHandle;
 268   EFI_DEVICE_PATH_PROTOCOL        *TempDevicePath;
 269   EFI_DEVICE_PATH_PROTOCOL        *TempPciDevicePath;
 270   UINTN                           GopHandleCount;
 271   EFI_HANDLE                      *GopHandleBuffer;
 272
 273   if (PciDevicePath == NULL || GopDevicePath == NULL) {
 274     return EFI_INVALID_PARAMETER;
 275   }
 276
 277   //
 278   // Initialize the GopDevicePath to be PciDevicePath
 279   //
 280   *GopDevicePath    = PciDevicePath;
 281   TempPciDevicePath = PciDevicePath;
 282
 283   Status = gBS->LocateDevicePath (
 284                   &gEfiDevicePathProtocolGuid,
 285                   &TempPciDevicePath,
 286                   &PciDeviceHandle
 287                   );
 288   if (EFI_ERROR (Status)) {
 289     return Status;
 290   }
 291
 292   //
 293   // Try to connect this handle, so that GOP dirver could start on this
 294   // device and create child handles with GraphicsOutput Protocol installed
 295   // on them, then we get device paths of these child handles and select
 296   // them as possible console device.
 297   //
 298   gBS->ConnectController (PciDeviceHandle, NULL, NULL, FALSE);
 299
 300   Status = gBS->LocateHandleBuffer (
 301                   ByProtocol,
 302                   &gEfiGraphicsOutputProtocolGuid,
 303                   NULL,
 304                   &GopHandleCount,
 305                   &GopHandleBuffer
 306                   );
 307   if (!EFI_ERROR (Status)) {
 308     //
 309     // Add all the child handles as possible Console Device
 310     //
 311     for (Index = 0; Index < GopHandleCount; Index++) {
 312       Status = gBS->HandleProtocol (GopHandleBuffer[Index], &gEfiDevicePathProtocolGuid, (VOID*)&TempDevicePath);
 313       if (EFI_ERROR (Status)) {
 314         continue;
 315       }
 316       if (CompareMem (
 317             PciDevicePath,
 318             TempDevicePath,
 319             GetDevicePathSize (PciDevicePath) - END_DEVICE_PATH_LENGTH
 320             ) == 0) {
 321         //
 322         // In current implementation, we only enable one of the child handles
 323         // as console device, i.e. sotre one of the child handle's device
 324         // path to variable "ConOut"
 325         // In futhure, we could select all child handles to be console device
 326         //
 327
 328         *GopDevicePath = TempDevicePath;
 329
 330         //
 331         // Delete the PCI device's path that added by GetPlugInPciVgaDevicePath()
 332         // Add the integrity GOP device path.
 333         //
 334         BdsLibUpdateConsoleVariable (VarConsoleOutDev, NULL, PciDevicePath);
 335         BdsLibUpdateConsoleVariable (VarConsoleOutDev, TempDevicePath, NULL);
 336       }
 337     }
 338     gBS->FreePool (GopHandleBuffer);
 339   }
 340
 341   return EFI_SUCCESS;
 342 }
 343
 344 EFI_STATUS
 345 PreparePciVgaDevicePath (
 346   IN EFI_HANDLE                DeviceHandle
 347   )
 348 /*++
 349
 350 Routine Description:
 351
 352   Add PCI VGA to ConOut.
 353   PCI VGA: 03 00 00
 354
 355 Arguments:
 356
 357   DeviceHandle            - Handle of PCIIO protocol.
 358
 359 Returns:
 360
 361   EFI_SUCCESS             - PCI VGA is added to ConOut.
 362   EFI_STATUS              - No PCI VGA device is added.
 363
 364 --*/
 365 {
 366   EFI_STATUS                Status;
 367   EFI_DEVICE_PATH_PROTOCOL  *DevicePath;
 368   EFI_DEVICE_PATH_PROTOCOL  *GopDevicePath;
 369
 370   DevicePath    = NULL;
 371   GopDevicePath = NULL;
 372   Status = gBS->HandleProtocol (
 373                   DeviceHandle,
 374                   &gEfiDevicePathProtocolGuid,
 375                   (VOID*)&DevicePath
 376                   );
 377   if (EFI_ERROR (Status)) {
 378     return Status;
 379   }
 380
 381   GetGopDevicePath (DevicePath, &GopDevicePath);
 382   DevicePath = GopDevicePath;
 383
 384   BdsLibUpdateConsoleVariable (VarConsoleOut, DevicePath, NULL);
 385
 386   return EFI_SUCCESS;
 387 }
 388
 389 EFI_STATUS
 390 PreparePciSerialDevicePath (
 391   IN EFI_HANDLE                DeviceHandle
 392   )
 393 /*++
 394
 395 Routine Description:
 396
 397   Add PCI Serial to ConOut, ConIn, ErrOut.
 398   PCI Serial: 07 00 02
 399
 400 Arguments:
 401
 402   DeviceHandle            - Handle of PCIIO protocol.
 403
 404 Returns:
 405
 406   EFI_SUCCESS             - PCI Serial is added to ConOut, ConIn, and ErrOut.
 407   EFI_STATUS              - No PCI Serial device is added.
 408
 409 --*/
 410 {
 411   EFI_STATUS                Status;
 412   EFI_DEVICE_PATH_PROTOCOL  *DevicePath;
 413
 414   DevicePath = NULL;
 415   Status = gBS->HandleProtocol (
 416                   DeviceHandle,
 417                   &gEfiDevicePathProtocolGuid,
 418                   (VOID*)&DevicePath
 419                   );
 420   if (EFI_ERROR (Status)) {
 421     return Status;
 422   }
 423
 424   DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gUartDeviceNode);
 425   DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gTerminalTypeDeviceNode);
 426
 427   BdsLibUpdateConsoleVariable (VarConsoleOut, DevicePath, NULL);
 428   BdsLibUpdateConsoleVariable (VarConsoleInp, DevicePath, NULL);
 429   BdsLibUpdateConsoleVariable (VarErrorOut, DevicePath, NULL);
 430
 431   return EFI_SUCCESS;
 432 }
 433
 434 EFI_STATUS
 435 VisitAllInstancesOfProtocol (
 436   IN EFI_GUID                    *Id,
 437   IN PROTOCOL_INSTANCE_CALLBACK  CallBackFunction,
 438   IN VOID                        *Context
 439   )
 440 {
 441   EFI_STATUS                Status;
 442   UINTN                     HandleCount;
 443   EFI_HANDLE                *HandleBuffer;
 444   UINTN                     Index;
 445   VOID                      *Instance;
 446
 447   //
 448   // Start to check all the PciIo to find all possible device
 449   //
 450   HandleCount = 0;
 451   HandleBuffer = NULL;
 452   Status = gBS->LocateHandleBuffer (
 453                   ByProtocol,
 454                   Id,
 455                   NULL,
 456                   &HandleCount,
 457                   &HandleBuffer
 458                   );
 459   if (EFI_ERROR (Status)) {
 460     return Status;
 461   }
 462
 463   for (Index = 0; Index < HandleCount; Index++) {
 464     Status = gBS->HandleProtocol (HandleBuffer[Index], Id, &Instance);
 465     if (EFI_ERROR (Status)) {
 466       continue;
 467     }
 468
 469     Status = (*CallBackFunction) (
 470                HandleBuffer[Index],
 471                Instance,
 472                Context
 473                );
 474   }
 475
 476   gBS->FreePool (HandleBuffer);
 477
 478   return EFI_SUCCESS;
 479 }
 480
 481
 482 EFI_STATUS
 483 EFIAPI
 484 VisitingAPciInstance (
 485   IN EFI_HANDLE  Handle,
 486   IN VOID        *Instance,
 487   IN VOID        *Context
 488   )
 489 {
 490   EFI_STATUS                Status;
 491   EFI_PCI_IO_PROTOCOL       *PciIo;
 492   PCI_TYPE00                Pci;
 493
 494   PciIo = (EFI_PCI_IO_PROTOCOL*) Instance;
 495
 496   //
 497   // Check for all PCI device
 498   //
 499   Status = PciIo->Pci.Read (
 500                     PciIo,
 501                     EfiPciIoWidthUint32,
 502                     0,
 503                     sizeof (Pci) / sizeof (UINT32),
 504                     &Pci
 505                     );
 506   if (EFI_ERROR (Status)) {
 507     return Status;
 508   }
 509
 510   return (*(VISIT_PCI_INSTANCE_CALLBACK)(UINTN) Context) (
 511            Handle,
 512            PciIo,
 513            &Pci
 514            );
 515
 516 }
 517
 518
 519
 520 EFI_STATUS
 521 VisitAllPciInstances (
 522   IN VISIT_PCI_INSTANCE_CALLBACK CallBackFunction
 523   )
 524 {
 525   return VisitAllInstancesOfProtocol (
 526            &gEfiPciIoProtocolGuid,
 527            VisitingAPciInstance,
 528            (VOID*)(UINTN) CallBackFunction
 529            );
 530 }
 531
 532
 533 /**
 534   Do platform specific PCI Device check and add them to
 535   ConOut, ConIn, ErrOut.
 536
 537   @param[in]  Handle - Handle of PCI device instance
 538   @param[in]  PciIo - PCI IO protocol instance
 539   @param[in]  Pci - PCI Header register block
 540
 541   @retval EFI_SUCCESS - PCI Device check and Console variable update successfully.
 542   @retval EFI_STATUS - PCI Device check or Console variable update fail.
 543
 544 **/
 545 EFI_STATUS
 546 EFIAPI
 547 DetectAndPreparePlatformPciDevicePath (
 548   IN EFI_HANDLE           Handle,
 549   IN EFI_PCI_IO_PROTOCOL  *PciIo,
 550   IN PCI_TYPE00           *Pci
 551   )
 552 {
 553   EFI_STATUS                Status;
 554
 555   Status = PciIo->Attributes (
 556     PciIo,
 557     EfiPciIoAttributeOperationEnable,
 558     EFI_PCI_DEVICE_ENABLE,
 559     NULL
 560     );
 561   ASSERT_EFI_ERROR (Status);
 562
 563   if (!mDetectVgaOnly) {
 564     //
 565     // Here we decide whether it is LPC Bridge
 566     //
 567     if ((IS_PCI_LPC (Pci)) ||
 568         ((IS_PCI_ISA_PDECODE (Pci)) &&
 569          (Pci->Hdr.VendorId == 0x8086) &&
 570          (Pci->Hdr.DeviceId == 0x7000)
 571         )
 572        ) {
 573       //
 574       // Add IsaKeyboard to ConIn,
 575       // add IsaSerial to ConOut, ConIn, ErrOut
 576       //
 577       DEBUG ((EFI_D_INFO, "Found LPC Bridge device\n"));
 578       PrepareLpcBridgeDevicePath (Handle);
 579       return EFI_SUCCESS;
 580     }
 581     //
 582     // Here we decide which Serial device to enable in PCI bus
 583     //
 584     if (IS_PCI_16550SERIAL (Pci)) {
 585       //
 586       // Add them to ConOut, ConIn, ErrOut.
 587       //
 588       DEBUG ((EFI_D_INFO, "Found PCI 16550 SERIAL device\n"));
 589       PreparePciSerialDevicePath (Handle);
 590       return EFI_SUCCESS;
 591     }
 592   }
 593
 594   //
 595   // Here we decide which VGA device to enable in PCI bus
 596   //
 597   if (IS_PCI_VGA (Pci)) {
 598     //
 599     // Add them to ConOut.
 600     //
 601     DEBUG ((EFI_D_INFO, "Found PCI VGA device\n"));
 602     PreparePciVgaDevicePath (Handle);
 603     return EFI_SUCCESS;
 604   }
 605
 606   return Status;
 607 }
 608
 609
 610 /**
 611   Do platform specific PCI Device check and add them to ConOut, ConIn, ErrOut
 612
 613   @param[in]  DetectVgaOnly - Only detect VGA device if it's TRUE.
 614
 615   @retval EFI_SUCCESS - PCI Device check and Console variable update successfully.
 616   @retval EFI_STATUS - PCI Device check or Console variable update fail.
 617
 618 **/
 619 EFI_STATUS
 620 DetectAndPreparePlatformPciDevicePaths (
 621   BOOLEAN DetectVgaOnly
 622   )
 623 {
 624   mDetectVgaOnly = DetectVgaOnly;
 625   return VisitAllPciInstances (DetectAndPreparePlatformPciDevicePath);
 626 }
 627
 628
 629 EFI_STATUS
 630 PlatformBdsConnectConsole (
 631   IN BDS_CONSOLE_CONNECT_ENTRY   *PlatformConsole
 632   )
 633 /*++
 634
 635 Routine Description:
 636
 637   Connect the predefined platform default console device. Always try to find
 638   and enable the vga device if have.
 639
 640 Arguments:
 641
 642   PlatformConsole         - Predfined platform default console device array.
 643
 644 Returns:
 645
 646   EFI_SUCCESS             - Success connect at least one ConIn and ConOut
 647                             device, there must have one ConOut device is
 648                             active vga device.
 649
 650   EFI_STATUS              - Return the status of
 651                             BdsLibConnectAllDefaultConsoles ()
 652
 653 --*/
 654 {
 655   EFI_STATUS                         Status;
 656   UINTN                              Index;
 657   EFI_DEVICE_PATH_PROTOCOL           *VarConout;
 658   EFI_DEVICE_PATH_PROTOCOL           *VarConin;
 659   UINTN                              DevicePathSize;
 660
 661   //
 662   // Connect RootBridge
 663   //
 664   VarConout = BdsLibGetVariableAndSize (
 665                 VarConsoleOut,
 666                 &gEfiGlobalVariableGuid,
 667                 &DevicePathSize
 668                 );
 669   VarConin = BdsLibGetVariableAndSize (
 670                VarConsoleInp,
 671                &gEfiGlobalVariableGuid,
 672                &DevicePathSize
 673                );
 674
 675   if (VarConout == NULL || VarConin == NULL) {
 676     //
 677     // Do platform specific PCI Device check and add them to ConOut, ConIn, ErrOut
 678     //
 679     DetectAndPreparePlatformPciDevicePaths (FALSE);
 680
 681     //
 682     // Have chance to connect the platform default console,
 683     // the platform default console is the minimue device group
 684     // the platform should support
 685     //
 686     for (Index = 0; PlatformConsole[Index].DevicePath != NULL; ++Index) {
 687       //
 688       // Update the console variable with the connect type
 689       //
 690       if ((PlatformConsole[Index].ConnectType & CONSOLE_IN) == CONSOLE_IN) {
 691         BdsLibUpdateConsoleVariable (VarConsoleInp, PlatformConsole[Index].DevicePath, NULL);
 692       }
 693       if ((PlatformConsole[Index].ConnectType & CONSOLE_OUT) == CONSOLE_OUT) {
 694         BdsLibUpdateConsoleVariable (VarConsoleOut, PlatformConsole[Index].DevicePath, NULL);
 695       }
 696       if ((PlatformConsole[Index].ConnectType & STD_ERROR) == STD_ERROR) {
 697         BdsLibUpdateConsoleVariable (VarErrorOut, PlatformConsole[Index].DevicePath, NULL);
 698       }
 699     }
 700   } else {
 701     //
 702     // Only detect VGA device and add them to ConOut
 703     //
 704     DetectAndPreparePlatformPciDevicePaths (TRUE);
 705   }
 706
 707   //
 708   // Connect the all the default console with current cosole variable
 709   //
 710   Status = BdsLibConnectAllDefaultConsoles ();
 711   if (EFI_ERROR (Status)) {
 712     return Status;
 713   }
 714
 715   return EFI_SUCCESS;
 716 }
 717
 718
 719 VOID
 720 PciInitialization (
 721   )
 722 {
 723   //
 724   // Bus 0, Device 0, Function 0 - Host to PCI Bridge
 725   //
 726   PciWrite8 (PCI_LIB_ADDRESS (0, 0, 0, 0x3c), 0x00);
 727
 728   //
 729   // Bus 0, Device 1, Function 0 - PCI to ISA Bridge
 730   //
 731   PciWrite8 (PCI_LIB_ADDRESS (0, 1, 0, 0x3c), 0x00);
 732   PciWrite8 (PCI_LIB_ADDRESS (0, 1, 0, 0x60), 0x0b); // LNKA routing target
 733   PciWrite8 (PCI_LIB_ADDRESS (0, 1, 0, 0x61), 0x0b); // LNKB routing target
 734   PciWrite8 (PCI_LIB_ADDRESS (0, 1, 0, 0x62), 0x0a); // LNKC routing target
 735   PciWrite8 (PCI_LIB_ADDRESS (0, 1, 0, 0x63), 0x0a); // LNKD routing target
 736
 737   //
 738   // Bus 0, Device 1, Function 1 - IDE Controller
 739   //
 740   PciWrite8 (PCI_LIB_ADDRESS (0, 1, 1, 0x3c), 0x00);
 741   PciWrite8 (PCI_LIB_ADDRESS (0, 1, 1, 0x0d), 0x40);
 742
 743   //
 744   // Bus 0, Device 1, Function 3 - Power Managment Controller
 745   //
 746   PciWrite8 (PCI_LIB_ADDRESS (0, 1, 3, 0x3c), 0x09);
 747   PciWrite8 (PCI_LIB_ADDRESS (0, 1, 3, 0x3d), 0x01); // INTA
 748
 749   //
 750   // Bus 0, Device 2, Function 0 - Video Controller
 751   //
 752   PciWrite8 (PCI_LIB_ADDRESS (0, 2, 0, 0x3c), 0x00);
 753
 754   //
 755   // Bus 0, Device 3, Function 0 - Network Controller
 756   //
 757   PciWrite8 (PCI_LIB_ADDRESS (0, 3, 0, 0x3c), 0x0a);
 758   PciWrite8 (PCI_LIB_ADDRESS (0, 3, 0, 0x3d), 0x01); // INTA (-> LNKC)
 759
 760   //
 761   // Bus 0, Device 5, Function 0 - RAM Memory
 762   //
 763   PciWrite8 (PCI_LIB_ADDRESS (0, 5, 0, 0x3c), 0x0b);
 764   PciWrite8 (PCI_LIB_ADDRESS (0, 5, 0, 0x3d), 0x01); // INTA (-> LNKA)
 765 }
 766
 767
 768 VOID
 769 AcpiInitialization (
 770   VOID
 771   )
 772 {
 773   //
 774   // Set ACPI SCI_EN bit in PMCNTRL
 775   //
 776   IoOr16 ((PciRead32 (PCI_LIB_ADDRESS (0, 1, 3, 0x40)) & ~BIT0) + 4, BIT0);
 777 }
 778
 779
 780 EFI_STATUS
 781 EFIAPI
 782 ConnectRecursivelyIfPciMassStorage (
 783   IN EFI_HANDLE           Handle,
 784   IN EFI_PCI_IO_PROTOCOL  *Instance,
 785   IN PCI_TYPE00           *PciHeader
 786   )
 787 {
 788   EFI_STATUS                Status;
 789   EFI_DEVICE_PATH_PROTOCOL  *DevicePath;
 790   CHAR16                    *DevPathStr;
 791
 792   if (IS_CLASS1 (PciHeader, PCI_CLASS_MASS_STORAGE)) {
 793     DevicePath = NULL;
 794     Status = gBS->HandleProtocol (
 795                     Handle,
 796                     &gEfiDevicePathProtocolGuid,
 797                     (VOID*)&DevicePath
 798                     );
 799     if (EFI_ERROR (Status)) {
 800       return Status;
 801     }
 802
 803     //
 804     // Print Device Path
 805     //
 806     DevPathStr = DevicePathToStr (DevicePath);
 807     if (DevPathStr != NULL) {
 808       DEBUG((
 809         EFI_D_INFO,
 810         "Found Mass Storage device: %s\n",
 811         DevPathStr
 812         ));
 813       FreePool(DevPathStr);
 814     }
 815
 816     Status = gBS->ConnectController (Handle, NULL, NULL, TRUE);
 817     if (EFI_ERROR (Status)) {
 818       return Status;
 819     }
 820
 821   }
 822
 823   return EFI_SUCCESS;
 824 }
 825
 826
 827 /**
 828   This notification function is invoked when the
 829   EMU Variable FVB has been changed.
 830
 831   @param  Event                 The event that occured
 832   @param  Context               For EFI compatiblity.  Not used.
 833
 834 **/
 835 VOID
 836 EFIAPI
 837 EmuVariablesUpdatedCallback (
 838   IN  EFI_EVENT Event,
 839   IN  VOID      *Context
 840   )
 841 {
 842   DEBUG ((EFI_D_INFO, "EmuVariablesUpdatedCallback\n"));
 843   UpdateNvVarsOnFileSystem ();
 844 }
 845
 846
 847 EFI_STATUS
 848 EFIAPI
 849 VisitingFileSystemInstance (
 850   IN EFI_HANDLE  Handle,
 851   IN VOID        *Instance,
 852   IN VOID        *Context
 853   )
 854 {
 855   EFI_STATUS      Status;
 856   STATIC BOOLEAN  ConnectedToFileSystem = FALSE;
 857
 858   if (ConnectedToFileSystem) {
 859     return EFI_ALREADY_STARTED;
 860   }
 861
 862   Status = ConnectNvVarsToFileSystem (Handle);
 863   if (EFI_ERROR (Status)) {
 864     return Status;
 865   }
 866
 867   ConnectedToFileSystem = TRUE;
 868   mEmuVariableEvent =
 869     EfiCreateProtocolNotifyEvent (
 870       &gEfiDevicePathProtocolGuid,
 871       TPL_CALLBACK,
 872       EmuVariablesUpdatedCallback,
 873       NULL,
 874       &mEmuVariableEventReg
 875       );
 876   PcdSet64 (PcdEmuVariableEvent, (UINT64)(UINTN) mEmuVariableEvent);
 877
 878   return EFI_SUCCESS;
 879 }
 880
 881
 882 VOID
 883 PlatformBdsRestoreNvVarsFromHardDisk (
 884   )
 885 {
 886   VisitAllPciInstances (ConnectRecursivelyIfPciMassStorage);
 887   VisitAllInstancesOfProtocol (
 888     &gEfiSimpleFileSystemProtocolGuid,
 889     VisitingFileSystemInstance,
 890     NULL
 891     );
 892
 893 }
 894
 895
 896 VOID
 897 PlatformBdsConnectSequence (
 898   VOID
 899   )
 900 /*++
 901
 902 Routine Description:
 903
 904   Connect with predeined platform connect sequence,
 905   the OEM/IBV can customize with their own connect sequence.
 906
 907 Arguments:
 908
 909   None.
 910
 911 Returns:
 912
 913   None.
 914
 915 --*/
 916 {
 917   UINTN Index;
 918
 919   DEBUG ((EFI_D_INFO, "PlatformBdsConnectSequence\n"));
 920
 921   Index = 0;
 922
 923   //
 924   // Here we can get the customized platform connect sequence
 925   // Notes: we can connect with new variable which record the
 926   // last time boots connect device path sequence
 927   //
 928   while (gPlatformConnectSequence[Index] != NULL) {
 929     //
 930     // Build the platform boot option
 931     //
 932     BdsLibConnectDevicePath (gPlatformConnectSequence[Index]);
 933     Index++;
 934   }
 935
 936   //
 937   // Just use the simple policy to connect all devices
 938   //
 939   BdsLibConnectAll ();
 940
 941   PciInitialization ();
 942   AcpiInitialization ();
 943
 944   //
 945   // Clear the logo after all devices are connected.
 946   //
 947   gST->ConOut->ClearScreen (gST->ConOut);
 948 }
 949
 950 VOID
 951 PlatformBdsGetDriverOption (
 952   IN OUT LIST_ENTRY              *BdsDriverLists
 953   )
 954 /*++
 955
 956 Routine Description:
 957
 958   Load the predefined driver option, OEM/IBV can customize this
 959   to load their own drivers
 960
 961 Arguments:
 962
 963   BdsDriverLists  - The header of the driver option link list.
 964
 965 Returns:
 966
 967   None.
 968
 969 --*/
 970 {
 971   DEBUG ((EFI_D_INFO, "PlatformBdsGetDriverOption\n"));
 972   return;
 973 }
 974
 975 VOID
 976 PlatformBdsDiagnostics (
 977   IN EXTENDMEM_COVERAGE_LEVEL    MemoryTestLevel,
 978   IN BOOLEAN                     QuietBoot,
 979   IN BASEM_MEMORY_TEST           BaseMemoryTest
 980   )
 981 /*++
 982
 983 Routine Description:
 984
 985   Perform the platform diagnostic, such like test memory. OEM/IBV also
 986   can customize this fuction to support specific platform diagnostic.
 987
 988 Arguments:
 989
 990   MemoryTestLevel  - The memory test intensive level
 991
 992   QuietBoot        - Indicate if need to enable the quiet boot
 993
 994   BaseMemoryTest   - A pointer to BaseMemoryTest()
 995
 996 Returns:
 997
 998   None.
 999
1000 --*/
1001 {
1002   EFI_STATUS  Status;
1003
1004   DEBUG ((EFI_D_INFO, "PlatformBdsDiagnostics\n"));
1005
1006   //
1007   // Here we can decide if we need to show
1008   // the diagnostics screen
1009   // Notes: this quiet boot code should be remove
1010   // from the graphic lib
1011   //
1012   if (QuietBoot) {
1013     EnableQuietBoot (PcdGetPtr(PcdLogoFile));
1014     //
1015     // Perform system diagnostic
1016     //
1017     Status = BaseMemoryTest (MemoryTestLevel);
1018     if (EFI_ERROR (Status)) {
1019       DisableQuietBoot ();
1020     }
1021
1022     return ;
1023   }
1024   //
1025   // Perform system diagnostic
1026   //
1027   Status = BaseMemoryTest (MemoryTestLevel);
1028 }
1029
1030
1031 VOID
1032 EFIAPI
1033 PlatformBdsPolicyBehavior (
1034   IN OUT LIST_ENTRY                  *DriverOptionList,
1035   IN OUT LIST_ENTRY                  *BootOptionList,
1036   IN PROCESS_CAPSULES                ProcessCapsules,
1037   IN BASEM_MEMORY_TEST               BaseMemoryTest
1038   )
1039 /*++
1040
1041 Routine Description:
1042
1043   The function will excute with as the platform policy, current policy
1044   is driven by boot mode. IBV/OEM can customize this code for their specific
1045   policy action.
1046
1047 Arguments:
1048
1049   DriverOptionList - The header of the driver option link list
1050
1051   BootOptionList   - The header of the boot option link list
1052
1053   ProcessCapsules  - A pointer to ProcessCapsules()
1054
1055   BaseMemoryTest   - A pointer to BaseMemoryTest()
1056
1057 Returns:
1058
1059   None.
1060
1061 --*/
1062 {
1063   EFI_STATUS                         Status;
1064   UINT16                             Timeout;
1065   EFI_EVENT                          UserInputDurationTime;
1066   LIST_ENTRY                     *Link;
1067   BDS_COMMON_OPTION                  *BootOption;
1068   UINTN                              Index;
1069   EFI_INPUT_KEY                      Key;
1070   EFI_TPL                            OldTpl;
1071   EFI_BOOT_MODE                      BootMode;
1072
1073   DEBUG ((EFI_D_INFO, "PlatformBdsPolicyBehavior\n"));
1074
1075   ConnectRootBridge ();
1076
1077   if (PcdGetBool (PcdOvmfFlashVariablesEnable)) {
1078     DEBUG ((EFI_D_INFO, "PlatformBdsPolicyBehavior: not restoring NvVars "
1079       "from disk since flash variables appear to be supported.\n"));
1080   } else {
1081     //
1082     // Try to restore variables from the hard disk early so
1083     // they can be used for the other BDS connect operations.
1084     //
1085     PlatformBdsRestoreNvVarsFromHardDisk ();
1086   }
1087
1088   //
1089   // Init the time out value
1090   //
1091   Timeout = PcdGet16 (PcdPlatformBootTimeOut);
1092
1093   //
1094   // Load the driver option as the driver option list
1095   //
1096   PlatformBdsGetDriverOption (DriverOptionList);
1097
1098   //
1099   // Get current Boot Mode
1100   //
1101   Status = BdsLibGetBootMode (&BootMode);
1102   DEBUG ((EFI_D_ERROR, "Boot Mode:%x\n", BootMode));
1103
1104   //
1105   // Go the different platform policy with different boot mode
1106   // Notes: this part code can be change with the table policy
1107   //
1108   ASSERT (BootMode == BOOT_WITH_FULL_CONFIGURATION);
1109   //
1110   // Connect platform console
1111   //
1112   Status = PlatformBdsConnectConsole (gPlatformConsole);
1113   if (EFI_ERROR (Status)) {
1114     //
1115     // Here OEM/IBV can customize with defined action
1116     //
1117     PlatformBdsNoConsoleAction ();
1118   }
1119   //
1120   // Create a 300ms duration event to ensure user has enough input time to enter Setup
1121   //
1122   Status = gBS->CreateEvent (
1123                   EVT_TIMER,
1124                   0,
1125                   NULL,
1126                   NULL,
1127                   &UserInputDurationTime
1128                   );
1129   ASSERT (Status == EFI_SUCCESS);
1130   Status = gBS->SetTimer (UserInputDurationTime, TimerRelative, 3000000);
1131   ASSERT (Status == EFI_SUCCESS);
1132   //
1133   // Memory test and Logo show
1134   //
1135   PlatformBdsDiagnostics (IGNORE, TRUE, BaseMemoryTest);
1136
1137   //
1138   // Perform some platform specific connect sequence
1139   //
1140   PlatformBdsConnectSequence ();
1141
1142   //
1143   // Process QEMU's -kernel command line option
1144   //
1145   TryRunningQemuKernel ();
1146
1147   DEBUG ((EFI_D_INFO, "BdsLibConnectAll\n"));
1148   BdsLibConnectAll ();
1149   BdsLibEnumerateAllBootOption (BootOptionList);
1150
1151   SetBootOrderFromQemu (BootOptionList);
1152   //
1153   // The BootOrder variable may have changed, reload the in-memory list with
1154   // it.
1155   //
1156   BdsLibBuildOptionFromVar (BootOptionList, L"BootOrder");
1157
1158   //
1159   // To give the User a chance to enter Setup here, if user set TimeOut is 0.
1160   // BDS should still give user a chance to enter Setup
1161   //
1162   // Connect first boot option, and then check user input before exit
1163   //
1164   for (Link = BootOptionList->ForwardLink; Link != BootOptionList;Link = Link->ForwardLink) {
1165     BootOption = CR (Link, BDS_COMMON_OPTION, Link, BDS_LOAD_OPTION_SIGNATURE);
1166     if (!IS_LOAD_OPTION_TYPE (BootOption->Attribute, LOAD_OPTION_ACTIVE)) {
1167       //
1168       // skip the header of the link list, becuase it has no boot option
1169       //
1170       continue;
1171     } else {
1172       //
1173       // Make sure the boot option device path connected, but ignore the BBS device path
1174       //
1175       if (DevicePathType (BootOption->DevicePath) != BBS_DEVICE_PATH) {
1176         BdsLibConnectDevicePath (BootOption->DevicePath);
1177       }
1178       break;
1179     }
1180   }
1181
1182   //
1183   // Check whether the user input after the duration time has expired
1184   //
1185   OldTpl = EfiGetCurrentTpl();
1186   gBS->RestoreTPL (TPL_APPLICATION);
1187   gBS->WaitForEvent (1, &UserInputDurationTime, &Index);
1188   gBS->CloseEvent (UserInputDurationTime);
1189   Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
1190   gBS->RaiseTPL (OldTpl);
1191
1192   if (!EFI_ERROR (Status)) {
1193     //
1194     // Enter Setup if user input
1195     //
1196     Timeout = 0xffff;
1197     PlatformBdsEnterFrontPage (Timeout, FALSE);
1198   }
1199
1200   return ;
1201 }
1202
1203 VOID
1204 EFIAPI
1205 PlatformBdsBootSuccess (
1206   IN  BDS_COMMON_OPTION   *Option
1207   )
1208 /*++
1209
1210 Routine Description:
1211
1212   Hook point after a boot attempt succeeds. We don't expect a boot option to
1213   return, so the EFI 1.0 specification defines that you will default to an
1214   interactive mode and stop processing the BootOrder list in this case. This
1215   is alos a platform implementation and can be customized by IBV/OEM.
1216
1217 Arguments:
1218
1219   Option - Pointer to Boot Option that succeeded to boot.
1220
1221 Returns:
1222
1223   None.
1224
1225 --*/
1226 {
1227   CHAR16  *TmpStr;
1228
1229   DEBUG ((EFI_D_INFO, "PlatformBdsBootSuccess\n"));
1230   //
1231   // If Boot returned with EFI_SUCCESS and there is not in the boot device
1232   // select loop then we need to pop up a UI and wait for user input.
1233   //
1234   TmpStr = Option->StatusString;
1235   if (TmpStr != NULL) {
1236     BdsLibOutputStrings (gST->ConOut, TmpStr, Option->Description, L"\n\r", NULL);
1237     FreePool (TmpStr);
1238   }
1239 }
1240
1241 VOID
1242 EFIAPI
1243 PlatformBdsBootFail (
1244   IN  BDS_COMMON_OPTION  *Option,
1245   IN  EFI_STATUS         Status,
1246   IN  CHAR16             *ExitData,
1247   IN  UINTN              ExitDataSize
1248   )
1249 /*++
1250
1251 Routine Description:
1252
1253   Hook point after a boot attempt fails.
1254
1255 Arguments:
1256
1257   Option - Pointer to Boot Option that failed to boot.
1258
1259   Status - Status returned from failed boot.
1260
1261   ExitData - Exit data returned from failed boot.
1262
1263   ExitDataSize - Exit data size returned from failed boot.
1264
1265 Returns:
1266
1267   None.
1268
1269 --*/
1270 {
1271   CHAR16  *TmpStr;
1272
1273   DEBUG ((EFI_D_INFO, "PlatformBdsBootFail\n"));
1274
1275   //
1276   // If Boot returned with failed status then we need to pop up a UI and wait
1277   // for user input.
1278   //
1279   TmpStr = Option->StatusString;
1280   if (TmpStr != NULL) {
1281     BdsLibOutputStrings (gST->ConOut, TmpStr, Option->Description, L"\n\r", NULL);
1282     FreePool (TmpStr);
1283   }
1284 }
1285
1286 EFI_STATUS
1287 PlatformBdsNoConsoleAction (
1288   VOID
1289   )
1290 /*++
1291
1292 Routine Description:
1293
1294   This function is remained for IBV/OEM to do some platform action,
1295   if there no console device can be connected.
1296
1297 Arguments:
1298
1299   None.
1300
1301 Returns:
1302
1303   EFI_SUCCESS      - Direct return success now.
1304
1305 --*/
1306 {
1307   DEBUG ((EFI_D_INFO, "PlatformBdsNoConsoleAction\n"));
1308   return EFI_SUCCESS;
1309 }
1310
1311 VOID
1312 EFIAPI
1313 PlatformBdsLockNonUpdatableFlash (
1314   VOID
1315   )
1316 {
1317   DEBUG ((EFI_D_INFO, "PlatformBdsLockNonUpdatableFlash\n"));
1318   return;
1319 }
1320
1321
1322 /**
1323   This notification function is invoked when an instance of the
1324   EFI_DEVICE_PATH_PROTOCOL is produced.
1325
1326   @param  Event                 The event that occured
1327   @param  Context               For EFI compatiblity.  Not used.
1328
1329 **/
1330 VOID
1331 EFIAPI
1332 NotifyDevPath (
1333   IN  EFI_EVENT Event,
1334   IN  VOID      *Context
1335   )
1336 {
1337   EFI_HANDLE                            Handle;
1338   EFI_STATUS                            Status;
1339   UINTN                                 BufferSize;
1340   EFI_DEVICE_PATH_PROTOCOL             *DevPathNode;
1341   ATAPI_DEVICE_PATH                    *Atapi;
1342
1343   //
1344   // Examine all new handles
1345   //
1346   for (;;) {
1347     //
1348     // Get the next handle
1349     //
1350     BufferSize = sizeof (Handle);
1351     Status = gBS->LocateHandle (
1352               ByRegisterNotify,
1353               NULL,
1354               mEfiDevPathNotifyReg,
1355               &BufferSize,
1356               &Handle
1357               );
1358
1359     //
1360     // If not found, we're done
1361     //
1362     if (EFI_NOT_FOUND == Status) {
1363       break;
1364     }
1365
1366     if (EFI_ERROR (Status)) {
1367       continue;
1368     }
1369
1370     //
1371     // Get the DevicePath protocol on that handle
1372     //
1373     Status = gBS->HandleProtocol (Handle, &gEfiDevicePathProtocolGuid, (VOID **)&DevPathNode);
1374     ASSERT_EFI_ERROR (Status);
1375
1376     while (!IsDevicePathEnd (DevPathNode)) {
1377       //
1378       // Find the handler to dump this device path node
1379       //
1380       if (
1381            (DevicePathType(DevPathNode) == MESSAGING_DEVICE_PATH) &&
1382            (DevicePathSubType(DevPathNode) == MSG_ATAPI_DP)
1383          ) {
1384         Atapi = (ATAPI_DEVICE_PATH*) DevPathNode;
1385         PciOr16 (
1386           PCI_LIB_ADDRESS (
1387             0,
1388             1,
1389             1,
1390             (Atapi->PrimarySecondary == 1) ? 0x42: 0x40
1391             ),
1392           BIT15
1393           );
1394       }
1395
1396       //
1397       // Next device path node
1398       //
1399       DevPathNode = NextDevicePathNode (DevPathNode);
1400     }
1401   }
1402
1403   return;
1404 }
1405
1406
1407 VOID
1408 InstallDevicePathCallback (
1409   VOID
1410   )
1411 {
1412   DEBUG ((EFI_D_INFO, "Registered NotifyDevPath Event\n"));
1413   mEfiDevPathEvent = EfiCreateProtocolNotifyEvent (
1414                           &gEfiDevicePathProtocolGuid,
1415                           TPL_CALLBACK,
1416                           NotifyDevPath,
1417                           NULL,
1418                           &mEfiDevPathNotifyReg
1419                           );
1420 }
1421
1422 /**
1423   Lock the ConsoleIn device in system table. All key
1424   presses will be ignored until the Password is typed in. The only way to
1425   disable the password is to type it in to a ConIn device.
1426
1427   @param  Password        Password used to lock ConIn device.
1428
1429   @retval EFI_SUCCESS     lock the Console In Spliter virtual handle successfully.
1430   @retval EFI_UNSUPPORTED Password not found
1431
1432 **/
1433 EFI_STATUS
1434 EFIAPI
1435 LockKeyboards (
1436   IN  CHAR16    *Password
1437   )
1438 {
1439     return EFI_UNSUPPORTED;
1440 }
1441