diff options
Diffstat (limited to 'OvmfPkg/Library/PlatformBootManagerLibBhyve/BdsPlatform.c')
| -rw-r--r-- | OvmfPkg/Library/PlatformBootManagerLibBhyve/BdsPlatform.c | 1660 |
1 files changed, 1660 insertions, 0 deletions
diff --git a/OvmfPkg/Library/PlatformBootManagerLibBhyve/BdsPlatform.c b/OvmfPkg/Library/PlatformBootManagerLibBhyve/BdsPlatform.c new file mode 100644 index 0000000000..3b94630ac7 --- /dev/null +++ b/OvmfPkg/Library/PlatformBootManagerLibBhyve/BdsPlatform.c @@ -0,0 +1,1660 @@ +/** @file
+ Platform BDS customizations.
+
+ Copyright (c) 2020, Rebecca Cran <rebecca@bsdio.com>
+ Copyright (c) 2004 - 2019, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "BdsPlatform.h"
+#include <Guid/RootBridgesConnectedEventGroup.h>
+#include <Protocol/FirmwareVolume2.h>
+#include <Library/PlatformBmPrintScLib.h>
+#include <Library/Tcg2PhysicalPresenceLib.h>
+
+#include <Protocol/BlockIo.h>
+
+//
+// Global data
+//
+
+VOID *mEfiDevPathNotifyReg;
+EFI_EVENT mEfiDevPathEvent;
+VOID *mEmuVariableEventReg;
+EFI_EVENT mEmuVariableEvent;
+UINT16 mHostBridgeDevId;
+
+//
+// Table of host IRQs matching PCI IRQs A-D
+// (for configuring PCI Interrupt Line register)
+//
+CONST UINT8 PciHostIrqs[] = {
+ 0x0a, 0x0a, 0x0b, 0x0b
+};
+
+//
+// Type definitions
+//
+
+typedef
+EFI_STATUS
+(EFIAPI *PROTOCOL_INSTANCE_CALLBACK)(
+ IN EFI_HANDLE Handle,
+ IN VOID *Instance,
+ IN VOID *Context
+ );
+
+/**
+ @param[in] Handle - Handle of PCI device instance
+ @param[in] PciIo - PCI IO protocol instance
+ @param[in] Pci - PCI Header register block
+**/
+typedef
+EFI_STATUS
+(EFIAPI *VISIT_PCI_INSTANCE_CALLBACK)(
+ IN EFI_HANDLE Handle,
+ IN EFI_PCI_IO_PROTOCOL *PciIo,
+ IN PCI_TYPE00 *Pci
+ );
+
+
+//
+// Function prototypes
+//
+
+EFI_STATUS
+VisitAllInstancesOfProtocol (
+ IN EFI_GUID *Id,
+ IN PROTOCOL_INSTANCE_CALLBACK CallBackFunction,
+ IN VOID *Context
+ );
+
+EFI_STATUS
+VisitAllPciInstancesOfProtocol (
+ IN VISIT_PCI_INSTANCE_CALLBACK CallBackFunction
+ );
+
+VOID
+InstallDevicePathCallback (
+ VOID
+ );
+
+VOID
+PlatformRegisterFvBootOption (
+ EFI_GUID *FileGuid,
+ CHAR16 *Description,
+ UINT32 Attributes
+ )
+{
+ EFI_STATUS Status;
+ INTN OptionIndex;
+ EFI_BOOT_MANAGER_LOAD_OPTION NewOption;
+ EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;
+ UINTN BootOptionCount;
+ MEDIA_FW_VOL_FILEPATH_DEVICE_PATH FileNode;
+ EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+
+ Status = gBS->HandleProtocol (
+ gImageHandle,
+ &gEfiLoadedImageProtocolGuid,
+ (VOID **) &LoadedImage
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ EfiInitializeFwVolDevicepathNode (&FileNode, FileGuid);
+ DevicePath = DevicePathFromHandle (LoadedImage->DeviceHandle);
+ ASSERT (DevicePath != NULL);
+ DevicePath = AppendDevicePathNode (
+ DevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *) &FileNode
+ );
+ ASSERT (DevicePath != NULL);
+
+ Status = EfiBootManagerInitializeLoadOption (
+ &NewOption,
+ LoadOptionNumberUnassigned,
+ LoadOptionTypeBoot,
+ Attributes,
+ Description,
+ DevicePath,
+ NULL,
+ 0
+ );
+ ASSERT_EFI_ERROR (Status);
+ FreePool (DevicePath);
+
+ BootOptions = EfiBootManagerGetLoadOptions (
+ &BootOptionCount, LoadOptionTypeBoot
+ );
+
+ OptionIndex = EfiBootManagerFindLoadOption (
+ &NewOption, BootOptions, BootOptionCount
+ );
+
+ if (OptionIndex == -1) {
+ Status = EfiBootManagerAddLoadOptionVariable (&NewOption, MAX_UINTN);
+ ASSERT_EFI_ERROR (Status);
+ }
+ EfiBootManagerFreeLoadOption (&NewOption);
+ EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);
+}
+
+/**
+ Remove all MemoryMapped(...)/FvFile(...) and Fv(...)/FvFile(...) boot options
+ whose device paths do not resolve exactly to an FvFile in the system.
+
+ This removes any boot options that point to binaries built into the firmware
+ and have become stale due to any of the following:
+ - DXEFV's base address or size changed (historical),
+ - DXEFV's FvNameGuid changed,
+ - the FILE_GUID of the pointed-to binary changed,
+ - the referenced binary is no longer built into the firmware.
+
+ EfiBootManagerFindLoadOption() used in PlatformRegisterFvBootOption() only
+ avoids exact duplicates.
+**/
+VOID
+RemoveStaleFvFileOptions (
+ VOID
+ )
+{
+ EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;
+ UINTN BootOptionCount;
+ UINTN Index;
+
+ BootOptions = EfiBootManagerGetLoadOptions (&BootOptionCount,
+ LoadOptionTypeBoot);
+
+ for (Index = 0; Index < BootOptionCount; ++Index) {
+ EFI_DEVICE_PATH_PROTOCOL *Node1, *Node2, *SearchNode;
+ EFI_STATUS Status;
+ EFI_HANDLE FvHandle;
+
+ //
+ // If the device path starts with neither MemoryMapped(...) nor Fv(...),
+ // then keep the boot option.
+ //
+ Node1 = BootOptions[Index].FilePath;
+ if (!(DevicePathType (Node1) == HARDWARE_DEVICE_PATH &&
+ DevicePathSubType (Node1) == HW_MEMMAP_DP) &&
+ !(DevicePathType (Node1) == MEDIA_DEVICE_PATH &&
+ DevicePathSubType (Node1) == MEDIA_PIWG_FW_VOL_DP)) {
+ continue;
+ }
+
+ //
+ // If the second device path node is not FvFile(...), then keep the boot
+ // option.
+ //
+ Node2 = NextDevicePathNode (Node1);
+ if (DevicePathType (Node2) != MEDIA_DEVICE_PATH ||
+ DevicePathSubType (Node2) != MEDIA_PIWG_FW_FILE_DP) {
+ continue;
+ }
+
+ //
+ // Locate the Firmware Volume2 protocol instance that is denoted by the
+ // boot option. If this lookup fails (i.e., the boot option references a
+ // firmware volume that doesn't exist), then we'll proceed to delete the
+ // boot option.
+ //
+ SearchNode = Node1;
+ Status = gBS->LocateDevicePath (&gEfiFirmwareVolume2ProtocolGuid,
+ &SearchNode, &FvHandle);
+
+ if (!EFI_ERROR (Status)) {
+ //
+ // The firmware volume was found; now let's see if it contains the FvFile
+ // identified by GUID.
+ //
+ EFI_FIRMWARE_VOLUME2_PROTOCOL *FvProtocol;
+ MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *FvFileNode;
+ UINTN BufferSize;
+ EFI_FV_FILETYPE FoundType;
+ EFI_FV_FILE_ATTRIBUTES FileAttributes;
+ UINT32 AuthenticationStatus;
+
+ Status = gBS->HandleProtocol (FvHandle, &gEfiFirmwareVolume2ProtocolGuid,
+ (VOID **)&FvProtocol);
+ ASSERT_EFI_ERROR (Status);
+
+ FvFileNode = (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *)Node2;
+ //
+ // Buffer==NULL means we request metadata only: BufferSize, FoundType,
+ // FileAttributes.
+ //
+ Status = FvProtocol->ReadFile (
+ FvProtocol,
+ &FvFileNode->FvFileName, // NameGuid
+ NULL, // Buffer
+ &BufferSize,
+ &FoundType,
+ &FileAttributes,
+ &AuthenticationStatus
+ );
+ if (!EFI_ERROR (Status)) {
+ //
+ // The FvFile was found. Keep the boot option.
+ //
+ continue;
+ }
+ }
+
+ //
+ // Delete the boot option.
+ //
+ Status = EfiBootManagerDeleteLoadOptionVariable (
+ BootOptions[Index].OptionNumber, LoadOptionTypeBoot);
+ DEBUG_CODE (
+ CHAR16 *DevicePathString;
+
+ DevicePathString = ConvertDevicePathToText(BootOptions[Index].FilePath,
+ FALSE, FALSE);
+ DEBUG ((
+ EFI_ERROR (Status) ? EFI_D_WARN : DEBUG_VERBOSE,
+ "%a: removing stale Boot#%04x %s: %r\n",
+ __FUNCTION__,
+ (UINT32)BootOptions[Index].OptionNumber,
+ DevicePathString == NULL ? L"<unavailable>" : DevicePathString,
+ Status
+ ));
+ if (DevicePathString != NULL) {
+ FreePool (DevicePathString);
+ }
+ );
+ }
+
+ EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);
+}
+
+VOID
+PlatformRegisterOptionsAndKeys (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ EFI_INPUT_KEY Enter;
+ EFI_INPUT_KEY F2;
+ EFI_INPUT_KEY Esc;
+ EFI_BOOT_MANAGER_LOAD_OPTION BootOption;
+
+ //
+ // Register ENTER as CONTINUE key
+ //
+ Enter.ScanCode = SCAN_NULL;
+ Enter.UnicodeChar = CHAR_CARRIAGE_RETURN;
+ Status = EfiBootManagerRegisterContinueKeyOption (0, &Enter, NULL);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Map F2 to Boot Manager Menu
+ //
+ F2.ScanCode = SCAN_F2;
+ F2.UnicodeChar = CHAR_NULL;
+ Esc.ScanCode = SCAN_ESC;
+ Esc.UnicodeChar = CHAR_NULL;
+ Status = EfiBootManagerGetBootManagerMenu (&BootOption);
+ ASSERT_EFI_ERROR (Status);
+ Status = EfiBootManagerAddKeyOptionVariable (
+ NULL, (UINT16) BootOption.OptionNumber, 0, &F2, NULL
+ );
+ ASSERT (Status == EFI_SUCCESS || Status == EFI_ALREADY_STARTED);
+ Status = EfiBootManagerAddKeyOptionVariable (
+ NULL, (UINT16) BootOption.OptionNumber, 0, &Esc, NULL
+ );
+ ASSERT (Status == EFI_SUCCESS || Status == EFI_ALREADY_STARTED);
+}
+
+EFI_STATUS
+EFIAPI
+ConnectRootBridge (
+ IN EFI_HANDLE RootBridgeHandle,
+ IN VOID *Instance,
+ IN VOID *Context
+ );
+
+STATIC
+EFI_STATUS
+EFIAPI
+ConnectVirtioPciRng (
+ IN EFI_HANDLE Handle,
+ IN VOID *Instance,
+ IN VOID *Context
+ );
+
+STATIC
+VOID
+SaveS3BootScript (
+ VOID
+ );
+
+//
+// BDS Platform Functions
+//
+/**
+ Do the platform init, can be customized by OEM/IBV
+
+ Possible things that can be done in PlatformBootManagerBeforeConsole:
+
+ > Update console variable: 1. include hot-plug devices;
+ > 2. Clear ConIn and add SOL for AMT
+ > Register new Driver#### or Boot####
+ > Register new Key####: e.g.: F12
+ > Signal ReadyToLock event
+ > Authentication action: 1. connect Auth devices;
+ > 2. Identify auto logon user.
+**/
+VOID
+EFIAPI
+PlatformBootManagerBeforeConsole (
+ VOID
+ )
+{
+ EFI_HANDLE Handle;
+ EFI_STATUS Status;
+
+ DEBUG ((DEBUG_INFO, "PlatformBootManagerBeforeConsole\n"));
+ InstallDevicePathCallback ();
+
+ VisitAllInstancesOfProtocol (&gEfiPciRootBridgeIoProtocolGuid,
+ ConnectRootBridge, NULL);
+
+ //
+ // Signal the ACPI platform driver that it can download QEMU ACPI tables.
+ //
+ EfiEventGroupSignal (&gRootBridgesConnectedEventGroupGuid);
+
+ //
+ // We can't signal End-of-Dxe earlier than this. Namely, End-of-Dxe triggers
+ // the preparation of S3 system information. That logic has a hard dependency
+ // on the presence of the FACS ACPI table. Since our ACPI tables are only
+ // installed after PCI enumeration completes, we must not trigger the S3 save
+ // earlier, hence we can't signal End-of-Dxe earlier.
+ //
+ EfiEventGroupSignal (&gEfiEndOfDxeEventGroupGuid);
+
+ //
+ // Prevent further changes to LockBoxes or SMRAM.
+ //
+ Handle = NULL;
+ Status = gBS->InstallProtocolInterface (&Handle,
+ &gEfiDxeSmmReadyToLockProtocolGuid, EFI_NATIVE_INTERFACE,
+ NULL);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Dispatch deferred images after EndOfDxe event and ReadyToLock
+ // installation.
+ //
+ EfiBootManagerDispatchDeferredImages ();
+
+ PlatformInitializeConsole (gPlatformConsole);
+
+ PlatformRegisterOptionsAndKeys ();
+
+ //
+ // Install both VIRTIO_DEVICE_PROTOCOL and (dependent) EFI_RNG_PROTOCOL
+ // instances on Virtio PCI RNG devices.
+ //
+ VisitAllInstancesOfProtocol (&gEfiPciIoProtocolGuid, ConnectVirtioPciRng,
+ NULL);
+}
+
+
+EFI_STATUS
+EFIAPI
+ConnectRootBridge (
+ IN EFI_HANDLE RootBridgeHandle,
+ IN VOID *Instance,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Make the PCI bus driver connect the root bridge, non-recursively. This
+ // will produce a number of child handles with PciIo on them.
+ //
+ Status = gBS->ConnectController (
+ RootBridgeHandle, // ControllerHandle
+ NULL, // DriverImageHandle
+ NULL, // RemainingDevicePath -- produce all
+ // children
+ FALSE // Recursive
+ );
+ return Status;
+}
+
+
+STATIC
+EFI_STATUS
+EFIAPI
+ConnectVirtioPciRng (
+ IN EFI_HANDLE Handle,
+ IN VOID *Instance,
+ IN VOID *Context
+ )
+{
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ EFI_STATUS Status;
+ UINT16 VendorId;
+ UINT16 DeviceId;
+ UINT8 RevisionId;
+ BOOLEAN Virtio10;
+ UINT16 SubsystemId;
+
+ PciIo = Instance;
+
+ //
+ // Read and check VendorId.
+ //
+ Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint16, PCI_VENDOR_ID_OFFSET,
+ 1, &VendorId);
+ if (EFI_ERROR (Status)) {
+ goto Error;
+ }
+ if (VendorId != VIRTIO_VENDOR_ID) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Read DeviceId and RevisionId.
+ //
+ Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint16, PCI_DEVICE_ID_OFFSET,
+ 1, &DeviceId);
+ if (EFI_ERROR (Status)) {
+ goto Error;
+ }
+ Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint8, PCI_REVISION_ID_OFFSET,
+ 1, &RevisionId);
+ if (EFI_ERROR (Status)) {
+ goto Error;
+ }
+
+ //
+ // From DeviceId and RevisionId, determine whether the device is a
+ // modern-only Virtio 1.0 device. In case of Virtio 1.0, DeviceId can
+ // immediately be restricted to VIRTIO_SUBSYSTEM_ENTROPY_SOURCE, and
+ // SubsystemId will only play a sanity-check role. Otherwise, DeviceId can
+ // only be sanity-checked, and SubsystemId will decide.
+ //
+ if (DeviceId == 0x1040 + VIRTIO_SUBSYSTEM_ENTROPY_SOURCE &&
+ RevisionId >= 0x01) {
+ Virtio10 = TRUE;
+ } else if (DeviceId >= 0x1000 && DeviceId <= 0x103F && RevisionId == 0x00) {
+ Virtio10 = FALSE;
+ } else {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Read and check SubsystemId as dictated by Virtio10.
+ //
+ Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint16,
+ PCI_SUBSYSTEM_ID_OFFSET, 1, &SubsystemId);
+ if (EFI_ERROR (Status)) {
+ goto Error;
+ }
+ if ((Virtio10 && SubsystemId >= 0x40) ||
+ (!Virtio10 && SubsystemId == VIRTIO_SUBSYSTEM_ENTROPY_SOURCE)) {
+ Status = gBS->ConnectController (
+ Handle, // ControllerHandle
+ NULL, // DriverImageHandle -- connect all drivers
+ NULL, // RemainingDevicePath -- produce all child handles
+ FALSE // Recursive -- don't follow child handles
+ );
+ if (EFI_ERROR (Status)) {
+ goto Error;
+ }
+ }
+ return EFI_SUCCESS;
+
+Error:
+ DEBUG ((DEBUG_ERROR, "%a: %r\n", __FUNCTION__, Status));
+ return Status;
+}
+
+
+/**
+ Add IsaKeyboard to ConIn; add IsaSerial to ConOut, ConIn, ErrOut.
+
+ @param[in] DeviceHandle Handle of the LPC Bridge device.
+
+ @retval EFI_SUCCESS Console devices on the LPC bridge have been added to
+ ConOut, ConIn, and ErrOut.
+
+ @return Error codes, due to EFI_DEVICE_PATH_PROTOCOL missing
+ from DeviceHandle.
+**/
+EFI_STATUS
+PrepareLpcBridgeDevicePath (
+ IN EFI_HANDLE DeviceHandle
+ )
+{
+ EFI_STATUS Status;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;
+ CHAR16 *DevPathStr;
+
+ DevicePath = NULL;
+ Status = gBS->HandleProtocol (
+ DeviceHandle,
+ &gEfiDevicePathProtocolGuid,
+ (VOID*)&DevicePath
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ TempDevicePath = DevicePath;
+
+ //
+ // Register Keyboard
+ //
+ DevicePath = AppendDevicePathNode (DevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *)&gPnpPs2KeyboardDeviceNode);
+
+ EfiBootManagerUpdateConsoleVariable (ConIn, DevicePath, NULL);
+
+ //
+ // Register COM1
+ //
+ DevicePath = TempDevicePath;
+ gPnp16550ComPortDeviceNode.UID = 0;
+
+ DevicePath = AppendDevicePathNode (DevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *)&gPnp16550ComPortDeviceNode);
+ DevicePath = AppendDevicePathNode (DevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *)&gUartDeviceNode);
+ DevicePath = AppendDevicePathNode (DevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *)&gTerminalTypeDeviceNode);
+
+ //
+ // Print Device Path
+ //
+ DevPathStr = ConvertDevicePathToText (DevicePath, FALSE, FALSE);
+ if (DevPathStr != NULL) {
+ DEBUG((
+ DEBUG_INFO,
+ "BdsPlatform.c+%d: COM%d DevPath: %s\n",
+ __LINE__,
+ gPnp16550ComPortDeviceNode.UID + 1,
+ DevPathStr
+ ));
+ FreePool(DevPathStr);
+ }
+
+ EfiBootManagerUpdateConsoleVariable (ConOut, DevicePath, NULL);
+ EfiBootManagerUpdateConsoleVariable (ConIn, DevicePath, NULL);
+ EfiBootManagerUpdateConsoleVariable (ErrOut, DevicePath, NULL);
+
+ // Don't register COM2 which can be used for DBG instead so keep it clean
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+GetGopDevicePath (
+ IN EFI_DEVICE_PATH_PROTOCOL *PciDevicePath,
+ OUT EFI_DEVICE_PATH_PROTOCOL **GopDevicePath
+ )
+{
+ UINTN Index;
+ EFI_STATUS Status;
+ EFI_HANDLE PciDeviceHandle;
+ EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;
+ EFI_DEVICE_PATH_PROTOCOL *TempPciDevicePath;
+ UINTN GopHandleCount;
+ EFI_HANDLE *GopHandleBuffer;
+
+ if (PciDevicePath == NULL || GopDevicePath == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Initialize the GopDevicePath to be PciDevicePath
+ //
+ *GopDevicePath = PciDevicePath;
+ TempPciDevicePath = PciDevicePath;
+
+ Status = gBS->LocateDevicePath (
+ &gEfiDevicePathProtocolGuid,
+ &TempPciDevicePath,
+ &PciDeviceHandle
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Try to connect this handle, so that GOP driver could start on this
+ // device and create child handles with GraphicsOutput Protocol installed
+ // on them, then we get device paths of these child handles and select
+ // them as possible console device.
+ //
+ gBS->ConnectController (PciDeviceHandle, NULL, NULL, FALSE);
+
+ Status = gBS->LocateHandleBuffer (
+ ByProtocol,
+ &gEfiGraphicsOutputProtocolGuid,
+ NULL,
+ &GopHandleCount,
+ &GopHandleBuffer
+ );
+ if (!EFI_ERROR (Status)) {
+ //
+ // Add all the child handles as possible Console Device
+ //
+ for (Index = 0; Index < GopHandleCount; Index++) {
+ Status = gBS->HandleProtocol (GopHandleBuffer[Index],
+ &gEfiDevicePathProtocolGuid, (VOID*)&TempDevicePath);
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+ if (CompareMem (
+ PciDevicePath,
+ TempDevicePath,
+ GetDevicePathSize (PciDevicePath) - END_DEVICE_PATH_LENGTH
+ ) == 0) {
+ //
+ // In current implementation, we only enable one of the child handles
+ // as console device, i.e. sotre one of the child handle's device
+ // path to variable "ConOut"
+ // In future, we could select all child handles to be console device
+ //
+
+ *GopDevicePath = TempDevicePath;
+
+ //
+ // Delete the PCI device's path that added by
+ // GetPlugInPciVgaDevicePath(). Add the integrity GOP device path.
+ //
+ EfiBootManagerUpdateConsoleVariable (ConOutDev, NULL, PciDevicePath);
+ EfiBootManagerUpdateConsoleVariable (ConOutDev, TempDevicePath, NULL);
+ }
+ }
+ gBS->FreePool (GopHandleBuffer);
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Add PCI display to ConOut.
+
+ @param[in] DeviceHandle Handle of the PCI display device.
+
+ @retval EFI_SUCCESS The PCI display device has been added to ConOut.
+
+ @return Error codes, due to EFI_DEVICE_PATH_PROTOCOL missing
+ from DeviceHandle.
+**/
+EFI_STATUS
+PreparePciDisplayDevicePath (
+ IN EFI_HANDLE DeviceHandle
+ )
+{
+ EFI_STATUS Status;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ EFI_DEVICE_PATH_PROTOCOL *GopDevicePath;
+
+ DevicePath = NULL;
+ GopDevicePath = NULL;
+ Status = gBS->HandleProtocol (
+ DeviceHandle,
+ &gEfiDevicePathProtocolGuid,
+ (VOID*)&DevicePath
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ GetGopDevicePath (DevicePath, &GopDevicePath);
+ DevicePath = GopDevicePath;
+
+ EfiBootManagerUpdateConsoleVariable (ConOut, DevicePath, NULL);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Add PCI Serial to ConOut, ConIn, ErrOut.
+
+ @param[in] DeviceHandle Handle of the PCI serial device.
+
+ @retval EFI_SUCCESS The PCI serial device has been added to ConOut, ConIn,
+ ErrOut.
+
+ @return Error codes, due to EFI_DEVICE_PATH_PROTOCOL missing
+ from DeviceHandle.
+**/
+EFI_STATUS
+PreparePciSerialDevicePath (
+ IN EFI_HANDLE DeviceHandle
+ )
+{
+ EFI_STATUS Status;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+
+ DevicePath = NULL;
+ Status = gBS->HandleProtocol (
+ DeviceHandle,
+ &gEfiDevicePathProtocolGuid,
+ (VOID*)&DevicePath
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ DevicePath = AppendDevicePathNode (DevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *)&gUartDeviceNode);
+ DevicePath = AppendDevicePathNode (DevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *)&gTerminalTypeDeviceNode);
+
+ EfiBootManagerUpdateConsoleVariable (ConOut, DevicePath, NULL);
+ EfiBootManagerUpdateConsoleVariable (ConIn, DevicePath, NULL);
+ EfiBootManagerUpdateConsoleVariable (ErrOut, DevicePath, NULL);
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+VisitAllInstancesOfProtocol (
+ IN EFI_GUID *Id,
+ IN PROTOCOL_INSTANCE_CALLBACK CallBackFunction,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+ UINTN HandleCount;
+ EFI_HANDLE *HandleBuffer;
+ UINTN Index;
+ VOID *Instance;
+
+ //
+ // Start to check all the PciIo to find all possible device
+ //
+ HandleCount = 0;
+ HandleBuffer = NULL;
+ Status = gBS->LocateHandleBuffer (
+ ByProtocol,
+ Id,
+ NULL,
+ &HandleCount,
+ &HandleBuffer
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ for (Index = 0; Index < HandleCount; Index++) {
+ Status = gBS->HandleProtocol (HandleBuffer[Index], Id, &Instance);
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+
+ Status = (*CallBackFunction) (
+ HandleBuffer[Index],
+ Instance,
+ Context
+ );
+ }
+
+ gBS->FreePool (HandleBuffer);
+
+ return EFI_SUCCESS;
+}
+
+
+EFI_STATUS
+EFIAPI
+VisitingAPciInstance (
+ IN EFI_HANDLE Handle,
+ IN VOID *Instance,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ PCI_TYPE00 Pci;
+
+ PciIo = (EFI_PCI_IO_PROTOCOL*) Instance;
+
+ //
+ // Check for all PCI device
+ //
+ Status = PciIo->Pci.Read (
+ PciIo,
+ EfiPciIoWidthUint32,
+ 0,
+ sizeof (Pci) / sizeof (UINT32),
+ &Pci
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ return (*(VISIT_PCI_INSTANCE_CALLBACK)(UINTN) Context) (
+ Handle,
+ PciIo,
+ &Pci
+ );
+
+}
+
+
+
+EFI_STATUS
+VisitAllPciInstances (
+ IN VISIT_PCI_INSTANCE_CALLBACK CallBackFunction
+ )
+{
+ return VisitAllInstancesOfProtocol (
+ &gEfiPciIoProtocolGuid,
+ VisitingAPciInstance,
+ (VOID*)(UINTN) CallBackFunction
+ );
+}
+
+
+/**
+ Do platform specific PCI Device check and add them to
+ ConOut, ConIn, ErrOut.
+
+ @param[in] Handle - Handle of PCI device instance
+ @param[in] PciIo - PCI IO protocol instance
+ @param[in] Pci - PCI Header register block
+
+ @retval EFI_SUCCESS - PCI Device check and Console variable update
+ successfully.
+ @retval EFI_STATUS - PCI Device check or Console variable update fail.
+
+**/
+EFI_STATUS
+EFIAPI
+DetectAndPreparePlatformPciDevicePath (
+ IN EFI_HANDLE Handle,
+ IN EFI_PCI_IO_PROTOCOL *PciIo,
+ IN PCI_TYPE00 *Pci
+ )
+{
+ EFI_STATUS Status;
+
+ Status = PciIo->Attributes (
+ PciIo,
+ EfiPciIoAttributeOperationEnable,
+ EFI_PCI_DEVICE_ENABLE,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Here we decide whether it is LPC Bridge
+ //
+ if ((IS_PCI_LPC (Pci)) ||
+ ((IS_PCI_ISA_PDECODE (Pci)) &&
+ (Pci->Hdr.VendorId == 0x8086) &&
+ (Pci->Hdr.DeviceId == 0x7000)
+ )
+ ) {
+ //
+ // Add IsaKeyboard to ConIn,
+ // add IsaSerial to ConOut, ConIn, ErrOut
+ //
+ DEBUG ((DEBUG_INFO, "Found LPC Bridge device\n"));
+ PrepareLpcBridgeDevicePath (Handle);
+ return EFI_SUCCESS;
+ }
+ //
+ // Here we decide which Serial device to enable in PCI bus
+ //
+ if (IS_PCI_16550SERIAL (Pci)) {
+ //
+ // Add them to ConOut, ConIn, ErrOut.
+ //
+ DEBUG ((DEBUG_INFO, "Found PCI 16550 SERIAL device\n"));
+ PreparePciSerialDevicePath (Handle);
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Here we decide which display device to enable in PCI bus
+ //
+ if (IS_PCI_DISPLAY (Pci)) {
+ //
+ // Add them to ConOut.
+ //
+ DEBUG ((DEBUG_INFO, "Found PCI display device\n"));
+ PreparePciDisplayDevicePath (Handle);
+ return EFI_SUCCESS;
+ }
+
+ return Status;
+}
+
+
+/**
+ Connect the predefined platform default console device.
+
+ Always try to find and enable PCI display devices.
+
+ @param[in] PlatformConsole Predefined platform default console device array.
+**/
+VOID
+PlatformInitializeConsole (
+ IN PLATFORM_CONSOLE_CONNECT_ENTRY *PlatformConsole
+ )
+{
+ UINTN Index;
+
+ //
+ // Do platform specific PCI Device check and add them to ConOut, ConIn,
+ // ErrOut
+ //
+ VisitAllPciInstances (DetectAndPreparePlatformPciDevicePath);
+
+ //
+ // Have chance to connect the platform default console,
+ // the platform default console is the minimum device group
+ // the platform should support
+ //
+ for (Index = 0; PlatformConsole[Index].DevicePath != NULL; ++Index) {
+ //
+ // Update the console variable with the connect type
+ //
+ if ((PlatformConsole[Index].ConnectType & CONSOLE_IN) == CONSOLE_IN) {
+ EfiBootManagerUpdateConsoleVariable (ConIn,
+ PlatformConsole[Index].DevicePath, NULL);
+ }
+ if ((PlatformConsole[Index].ConnectType & CONSOLE_OUT) == CONSOLE_OUT) {
+ EfiBootManagerUpdateConsoleVariable (ConOut,
+ PlatformConsole[Index].DevicePath, NULL);
+ }
+ if ((PlatformConsole[Index].ConnectType & STD_ERROR) == STD_ERROR) {
+ EfiBootManagerUpdateConsoleVariable (ErrOut,
+ PlatformConsole[Index].DevicePath, NULL);
+ }
+ }
+}
+
+
+/**
+ Configure PCI Interrupt Line register for applicable devices
+ Ported from SeaBIOS, src/fw/pciinit.c, *_pci_slot_get_irq()
+
+ @param[in] Handle - Handle of PCI device instance
+ @param[in] PciIo - PCI IO protocol instance
+ @param[in] PciHdr - PCI Header register block
+
+ @retval EFI_SUCCESS - PCI Interrupt Line register configured successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+SetPciIntLine (
+ IN EFI_HANDLE Handle,
+ IN EFI_PCI_IO_PROTOCOL *PciIo,
+ IN PCI_TYPE00 *PciHdr
+ )
+{
+ EFI_DEVICE_PATH_PROTOCOL *DevPathNode;
+ EFI_DEVICE_PATH_PROTOCOL *DevPath;
+ UINTN RootSlot;
+ UINTN Idx;
+ UINT8 IrqLine;
+ EFI_STATUS Status;
+ UINT32 RootBusNumber;
+
+ Status = EFI_SUCCESS;
+
+ if (PciHdr->Device.InterruptPin != 0) {
+
+ DevPathNode = DevicePathFromHandle (Handle);
+ ASSERT (DevPathNode != NULL);
+ DevPath = DevPathNode;
+
+ RootBusNumber = 0;
+ if (DevicePathType (DevPathNode) == ACPI_DEVICE_PATH &&
+ DevicePathSubType (DevPathNode) == ACPI_DP &&
+ ((ACPI_HID_DEVICE_PATH *)DevPathNode)->HID == EISA_PNP_ID(0x0A03)) {
+ RootBusNumber = ((ACPI_HID_DEVICE_PATH *)DevPathNode)->UID;
+ }
+
+ //
+ // Compute index into PciHostIrqs[] table by walking
+ // the device path and adding up all device numbers
+ //
+ Status = EFI_NOT_FOUND;
+ RootSlot = 0;
+ Idx = PciHdr->Device.InterruptPin - 1;
+ while (!IsDevicePathEnd (DevPathNode)) {
+ if (DevicePathType (DevPathNode) == HARDWARE_DEVICE_PATH &&
+ DevicePathSubType (DevPathNode) == HW_PCI_DP) {
+
+ Idx += ((PCI_DEVICE_PATH *)DevPathNode)->Device;
+
+ //
+ // Unlike SeaBIOS, which starts climbing from the leaf device
+ // up toward the root, we traverse the device path starting at
+ // the root moving toward the leaf node.
+ // The slot number of the top-level parent bridge is needed for
+ // Q35 cases with more than 24 slots on the root bus.
+ //
+ if (Status != EFI_SUCCESS) {
+ Status = EFI_SUCCESS;
+ RootSlot = ((PCI_DEVICE_PATH *)DevPathNode)->Device;
+ }
+ }
+
+ DevPathNode = NextDevicePathNode (DevPathNode);
+ }
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ if (RootBusNumber == 0 && RootSlot == 0) {
+ DEBUG((
+ DEBUG_ERROR,
+ "%a: PCI host bridge (00:00.0) should have no interrupts!\n",
+ __FUNCTION__
+ ));
+ ASSERT (FALSE);
+ }
+
+ //
+ // Final PciHostIrqs[] index calculation depends on the platform
+ // and should match SeaBIOS src/fw/pciinit.c *_pci_slot_get_irq()
+ //
+ switch (mHostBridgeDevId) {
+ case 0x1275: // BHYVE
+ case INTEL_82441_DEVICE_ID:
+ Idx -= 1;
+ break;
+ case INTEL_Q35_MCH_DEVICE_ID:
+ //
+ // SeaBIOS contains the following comment:
+ // "Slots 0-24 rotate slot:pin mapping similar to piix above, but
+ // with a different starting index - see q35-acpi-dsdt.dsl.
+ //
+ // Slots 25-31 all use LNKA mapping (or LNKE, but A:D = E:H)"
+ //
+ if (RootSlot > 24) {
+ //
+ // in this case, subtract back out RootSlot from Idx
+ // (SeaBIOS never adds it to begin with, but that would make our
+ // device path traversal loop above too awkward)
+ //
+ Idx -= RootSlot;
+ }
+ break;
+ default:
+ ASSERT (FALSE); // should never get here
+ }
+ Idx %= ARRAY_SIZE (PciHostIrqs);
+ IrqLine = PciHostIrqs[Idx];
+
+ DEBUG_CODE_BEGIN ();
+ {
+ CHAR16 *DevPathString;
+ STATIC CHAR16 Fallback[] = L"<failed to convert>";
+ UINTN Segment, Bus, Device, Function;
+
+ DevPathString = ConvertDevicePathToText (DevPath, FALSE, FALSE);
+ if (DevPathString == NULL) {
+ DevPathString = Fallback;
+ }
+ Status = PciIo->GetLocation (PciIo, &Segment, &Bus, &Device, &Function);
+ ASSERT_EFI_ERROR (Status);
+
+ DEBUG ((DEBUG_VERBOSE, "%a: [%02x:%02x.%x] %s -> 0x%02x\n", __FUNCTION__,
+ (UINT32)Bus, (UINT32)Device, (UINT32)Function, DevPathString,
+ IrqLine));
+
+ if (DevPathString != Fallback) {
+ FreePool (DevPathString);
+ }
+ }
+ DEBUG_CODE_END ();
+
+ //
+ // Set PCI Interrupt Line register for this device to PciHostIrqs[Idx]
+ //
+ Status = PciIo->Pci.Write (
+ PciIo,
+ EfiPciIoWidthUint8,
+ PCI_INT_LINE_OFFSET,
+ 1,
+ &IrqLine
+ );
+ }
+
+ return Status;
+}
+
+
+VOID
+PciAcpiInitialization (
+ )
+{
+ UINTN Pmba;
+
+ //
+ // Query Host Bridge DID to determine platform type
+ //
+ mHostBridgeDevId = PcdGet16 (PcdOvmfHostBridgePciDevId);
+ switch (mHostBridgeDevId) {
+ case 0x1275: // BHYVE
+ case INTEL_82441_DEVICE_ID:
+ Pmba = POWER_MGMT_REGISTER_PIIX4 (PIIX4_PMBA);
+ //
+ // 00:01.0 ISA Bridge (PIIX4) LNK routing targets
+ //
+ PciWrite8 (PCI_LIB_ADDRESS (0, 1, 0, 0x60), 0x0b); // A
+ PciWrite8 (PCI_LIB_ADDRESS (0, 1, 0, 0x61), 0x0b); // B
+ PciWrite8 (PCI_LIB_ADDRESS (0, 1, 0, 0x62), 0x0a); // C
+ PciWrite8 (PCI_LIB_ADDRESS (0, 1, 0, 0x63), 0x0a); // D
+ break;
+ case INTEL_Q35_MCH_DEVICE_ID:
+ Pmba = POWER_MGMT_REGISTER_Q35 (ICH9_PMBASE);
+ //
+ // 00:1f.0 LPC Bridge (Q35) LNK routing targets
+ //
+ PciWrite8 (PCI_LIB_ADDRESS (0, 0x1f, 0, 0x60), 0x0a); // A
+ PciWrite8 (PCI_LIB_ADDRESS (0, 0x1f, 0, 0x61), 0x0a); // B
+ PciWrite8 (PCI_LIB_ADDRESS (0, 0x1f, 0, 0x62), 0x0b); // C
+ PciWrite8 (PCI_LIB_ADDRESS (0, 0x1f, 0, 0x63), 0x0b); // D
+ PciWrite8 (PCI_LIB_ADDRESS (0, 0x1f, 0, 0x68), 0x0a); // E
+ PciWrite8 (PCI_LIB_ADDRESS (0, 0x1f, 0, 0x69), 0x0a); // F
+ PciWrite8 (PCI_LIB_ADDRESS (0, 0x1f, 0, 0x6a), 0x0b); // G
+ PciWrite8 (PCI_LIB_ADDRESS (0, 0x1f, 0, 0x6b), 0x0b); // H
+ break;
+ default:
+ DEBUG ((DEBUG_ERROR, "%a: Unknown Host Bridge Device ID: 0x%04x\n",
+ __FUNCTION__, mHostBridgeDevId));
+ ASSERT (FALSE);
+ return;
+ }
+
+ //
+ // Initialize PCI_INTERRUPT_LINE for applicable present PCI devices
+ //
+ VisitAllPciInstances (SetPciIntLine);
+
+ //
+ // Set ACPI SCI_EN bit in PMCNTRL
+ //
+ IoOr16 ((PciRead32 (Pmba) & ~BIT0) + 4, BIT0);
+}
+
+EFI_STATUS
+EFIAPI
+ConnectRecursivelyIfPciMassStorage (
+ IN EFI_HANDLE Handle,
+ IN EFI_PCI_IO_PROTOCOL *Instance,
+ IN PCI_TYPE00 *PciHeader
+ )
+{
+ EFI_STATUS Status;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ CHAR16 *DevPathStr;
+
+ //
+ // Recognize PCI Mass Storage, and Xen PCI devices
+ //
+ if (IS_CLASS1 (PciHeader, PCI_CLASS_MASS_STORAGE)) {
+ DevicePath = NULL;
+ Status = gBS->HandleProtocol (
+ Handle,
+ &gEfiDevicePathProtocolGuid,
+ (VOID*)&DevicePath
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Print Device Path
+ //
+ DevPathStr = ConvertDevicePathToText (DevicePath, FALSE, FALSE);
+ if (DevPathStr != NULL) {
+ DEBUG((
+ DEBUG_INFO,
+ "Found %s device: %s\n",
+ (IS_CLASS1 (PciHeader, PCI_CLASS_MASS_STORAGE) ?
+ L"Mass Storage" :
+ L"Xen"
+ ),
+ DevPathStr
+ ));
+ FreePool(DevPathStr);
+ }
+
+ Status = gBS->ConnectController (Handle, NULL, NULL, TRUE);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ This notification function is invoked when the
+ EMU Variable FVB has been changed.
+
+ @param Event The event that occurred
+ @param Context For EFI compatibility. Not used.
+
+**/
+VOID
+EFIAPI
+EmuVariablesUpdatedCallback (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ DEBUG ((DEBUG_INFO, "EmuVariablesUpdatedCallback\n"));
+ UpdateNvVarsOnFileSystem ();
+}
+
+
+EFI_STATUS
+EFIAPI
+VisitingFileSystemInstance (
+ IN EFI_HANDLE Handle,
+ IN VOID *Instance,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+ STATIC BOOLEAN ConnectedToFileSystem = FALSE;
+ RETURN_STATUS PcdStatus;
+
+ if (ConnectedToFileSystem) {
+ return EFI_ALREADY_STARTED;
+ }
+
+ Status = ConnectNvVarsToFileSystem (Handle);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ ConnectedToFileSystem = TRUE;
+ mEmuVariableEvent =
+ EfiCreateProtocolNotifyEvent (
+ &gEfiDevicePathProtocolGuid,
+ TPL_CALLBACK,
+ EmuVariablesUpdatedCallback,
+ NULL,
+ &mEmuVariableEventReg
+ );
+ PcdStatus = PcdSet64S (PcdEmuVariableEvent,
+ (UINT64)(UINTN) mEmuVariableEvent);
+ ASSERT_RETURN_ERROR (PcdStatus);
+
+ return EFI_SUCCESS;
+}
+
+
+VOID
+PlatformBdsRestoreNvVarsFromHardDisk (
+ )
+{
+ VisitAllPciInstances (ConnectRecursivelyIfPciMassStorage);
+ VisitAllInstancesOfProtocol (
+ &gEfiSimpleFileSystemProtocolGuid,
+ VisitingFileSystemInstance,
+ NULL
+ );
+
+}
+
+/**
+ Connect with predefined platform connect sequence.
+
+ The OEM/IBV can customize with their own connect sequence.
+**/
+VOID
+PlatformBdsConnectSequence (
+ VOID
+ )
+{
+ UINTN Index;
+
+ DEBUG ((DEBUG_INFO, "PlatformBdsConnectSequence\n"));
+
+ Index = 0;
+
+ //
+ // Here we can get the customized platform connect sequence
+ // Notes: we can connect with new variable which record the
+ // last time boots connect device path sequence
+ //
+ while (gPlatformConnectSequence[Index] != NULL) {
+ //
+ // Build the platform boot option
+ //
+ EfiBootManagerConnectDevicePath (gPlatformConnectSequence[Index], NULL);
+ Index++;
+ }
+
+ //
+ // Just use the simple policy to connect all devices
+ //
+ DEBUG ((DEBUG_INFO, "EfiBootManagerConnectAll\n"));
+ EfiBootManagerConnectAll ();
+}
+
+/**
+ Save the S3 boot script.
+
+ Note that DxeSmmReadyToLock must be signaled after this function returns;
+ otherwise the script wouldn't be saved actually.
+**/
+#if defined(__GNUC__)
+__attribute__((unused))
+#endif
+STATIC
+VOID
+SaveS3BootScript (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ EFI_S3_SAVE_STATE_PROTOCOL *BootScript;
+ STATIC CONST UINT8 Info[] = { 0xDE, 0xAD, 0xBE, 0xEF };
+
+ Status = gBS->LocateProtocol (&gEfiS3SaveStateProtocolGuid, NULL,
+ (VOID **) &BootScript);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Despite the opcode documentation in the PI spec, the protocol
+ // implementation embeds a deep copy of the info in the boot script, rather
+ // than storing just a pointer to runtime or NVS storage.
+ //
+ Status = BootScript->Write(BootScript, EFI_BOOT_SCRIPT_INFORMATION_OPCODE,
+ (UINT32) sizeof Info,
+ (EFI_PHYSICAL_ADDRESS)(UINTN) &Info);
+ ASSERT_EFI_ERROR (Status);
+}
+
+
+/**
+ Do the platform specific action after the console is ready
+
+ Possible things that can be done in PlatformBootManagerAfterConsole:
+
+ > Console post action:
+ > Dynamically switch output mode from 100x31 to 80x25 for certain senarino
+ > Signal console ready platform customized event
+ > Run diagnostics like memory testing
+ > Connect certain devices
+ > Dispatch aditional option roms
+ > Special boot: e.g.: USB boot, enter UI
+**/
+VOID
+EFIAPI
+PlatformBootManagerAfterConsole (
+ VOID
+ )
+{
+ EFI_BOOT_MODE BootMode;
+
+ DEBUG ((DEBUG_INFO, "PlatformBootManagerAfterConsole\n"));
+
+ if (PcdGetBool (PcdOvmfFlashVariablesEnable)) {
+ DEBUG ((DEBUG_INFO, "PlatformBdsPolicyBehavior: not restoring NvVars "
+ "from disk since flash variables appear to be supported.\n"));
+ } else {
+ //
+ // Try to restore variables from the hard disk early so
+ // they can be used for the other BDS connect operations.
+ //
+ /* XXX Calling this causes Keyboard to be removed from ConIn which
+ results in unresponsive guest boot loaders in the GUI. Restore it
+ when we figure out what is needed to get NvVars storage done
+ properly.
+ */
+ /*PlatformBdsRestoreNvVarsFromHardDisk ();*/
+ }
+
+ //
+ // Get current Boot Mode
+ //
+ BootMode = GetBootModeHob ();
+ DEBUG ((DEBUG_INFO, "Boot Mode:%x\n", BootMode));
+
+ //
+ // Go the different platform policy with different boot mode
+ // Notes: this part code can be change with the table policy
+ //
+ ASSERT (BootMode == BOOT_WITH_FULL_CONFIGURATION);
+
+ //
+ // Logo show
+ //
+ BootLogoEnableLogo ();
+
+ //
+ // Set PCI Interrupt Line registers and ACPI SCI_EN
+ //
+ PciAcpiInitialization ();
+
+ //
+ // Process TPM PPI request
+ //
+ Tcg2PhysicalPresenceLibProcessRequest (NULL);
+
+ //
+ // Perform some platform specific connect sequence
+ //
+ PlatformBdsConnectSequence ();
+
+ EfiBootManagerRefreshAllBootOption ();
+
+ //
+ // Register UEFI Shell
+ //
+ PlatformRegisterFvBootOption (
+ &gUefiShellFileGuid, L"EFI Internal Shell", LOAD_OPTION_ACTIVE
+ );
+
+ RemoveStaleFvFileOptions ();
+
+ PlatformBmPrintScRegisterHandler ();
+}
+
+/**
+ This notification function is invoked when an instance of the
+ EFI_DEVICE_PATH_PROTOCOL is produced.
+
+ @param Event The event that occurred
+ @param Context For EFI compatibility. Not used.
+
+**/
+VOID
+EFIAPI
+NotifyDevPath (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_HANDLE Handle;
+ EFI_STATUS Status;
+ UINTN BufferSize;
+ EFI_DEVICE_PATH_PROTOCOL *DevPathNode;
+ ATAPI_DEVICE_PATH *Atapi;
+
+ //
+ // Examine all new handles
+ //
+ for (;;) {
+ //
+ // Get the next handle
+ //
+ BufferSize = sizeof (Handle);
+ Status = gBS->LocateHandle (
+ ByRegisterNotify,
+ NULL,
+ mEfiDevPathNotifyReg,
+ &BufferSize,
+ &Handle
+ );
+
+ //
+ // If not found, we're done
+ //
+ if (EFI_NOT_FOUND == Status) {
+ break;
+ }
+
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+
+ //
+ // Get the DevicePath protocol on that handle
+ //
+ Status = gBS->HandleProtocol (Handle, &gEfiDevicePathProtocolGuid,
+ (VOID **)&DevPathNode);
+ ASSERT_EFI_ERROR (Status);
+
+ while (!IsDevicePathEnd (DevPathNode)) {
+ //
+ // Find the handler to dump this device path node
+ //
+ if (
+ (DevicePathType(DevPathNode) == MESSAGING_DEVICE_PATH) &&
+ (DevicePathSubType(DevPathNode) == MSG_ATAPI_DP)
+ ) {
+ Atapi = (ATAPI_DEVICE_PATH*) DevPathNode;
+ PciOr16 (
+ PCI_LIB_ADDRESS (
+ 0,
+ 1,
+ 1,
+ (Atapi->PrimarySecondary == 1) ? 0x42: 0x40
+ ),
+ BIT15
+ );
+ }
+
+ //
+ // Next device path node
+ //
+ DevPathNode = NextDevicePathNode (DevPathNode);
+ }
+ }
+
+ return;
+}
+
+
+VOID
+InstallDevicePathCallback (
+ VOID
+ )
+{
+ DEBUG ((DEBUG_INFO, "Registered NotifyDevPath Event\n"));
+ mEfiDevPathEvent = EfiCreateProtocolNotifyEvent (
+ &gEfiDevicePathProtocolGuid,
+ TPL_CALLBACK,
+ NotifyDevPath,
+ NULL,
+ &mEfiDevPathNotifyReg
+ );
+}
+
+/**
+ This function is called each second during the boot manager waits the
+ timeout.
+
+ @param TimeoutRemain The remaining timeout.
+**/
+VOID
+EFIAPI
+PlatformBootManagerWaitCallback (
+ UINT16 TimeoutRemain
+ )
+{
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION Black;
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION White;
+ UINT16 Timeout;
+
+ Timeout = PcdGet16 (PcdPlatformBootTimeOut);
+
+ Black.Raw = 0x00000000;
+ White.Raw = 0x00FFFFFF;
+
+ BootLogoUpdateProgress (
+ White.Pixel,
+ Black.Pixel,
+ L"Start boot option",
+ White.Pixel,
+ (Timeout - TimeoutRemain) * 100 / Timeout,
+ 0
+ );
+}
+
+/**
+ The function is called when no boot option could be launched,
+ including platform recovery options and options pointing to applications
+ built into firmware volumes.
+
+ If this function returns, BDS attempts to enter an infinite loop.
+**/
+VOID
+EFIAPI
+PlatformBootManagerUnableToBoot (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ EFI_INPUT_KEY Key;
+ EFI_BOOT_MANAGER_LOAD_OPTION BootManagerMenu;
+ UINTN Index;
+
+ //
+ // BootManagerMenu doesn't contain the correct information when return status
+ // is EFI_NOT_FOUND.
+ //
+ Status = EfiBootManagerGetBootManagerMenu (&BootManagerMenu);
+ if (EFI_ERROR (Status)) {
+ return;
+ }
+ //
+ // Normally BdsDxe does not print anything to the system console, but this is
+ // a last resort -- the end-user will likely not see any DEBUG messages
+ // logged in this situation.
+ //
+ // AsciiPrint() will NULL-check gST->ConOut internally. We check gST->ConIn
+ // here to see if it makes sense to request and wait for a keypress.
+ //
+ if (gST->ConIn != NULL) {
+ AsciiPrint (
+ "%a: No bootable option or device was found.\n"
+ "%a: Press any key to enter the Boot Manager Menu.\n",
+ gEfiCallerBaseName,
+ gEfiCallerBaseName
+ );
+ Status = gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &Index);
+ ASSERT_EFI_ERROR (Status);
+ ASSERT (Index == 0);
+
+ //
+ // Drain any queued keys.
+ //
+ while (!EFI_ERROR (gST->ConIn->ReadKeyStroke (gST->ConIn, &Key))) {
+ //
+ // just throw away Key
+ //
+ }
+ }
+
+ for (;;) {
+ EfiBootManagerBoot (&BootManagerMenu);
+ }
+}
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