/**
Service routine for BdsInstance->Entry(). Devices are connected, the
consoles are initialized, and the boot options are tried.
@param This Protocol Instance structure.
**/
VOID
EFIAPI
BdsEntry (
IN EFI_BDS_ARCH_PROTOCOL *This
)
{
LIST_ENTRY DriverOptionList;
LIST_ENTRY BootOptionList;
UINTN BootNextSize;
CHAR16 *FirmwareVendor;
EFI_STATUS Status;
UINT16 BootTimeOut;
UINTN Index;
EDKII_VARIABLE_LOCK_PROTOCOL *VariableLock;
//
// Insert the performance probe
//
PERF_END (NULL, "DXE", NULL, 0);
PERF_START (NULL, "BDS", NULL, 0);
//
// Initialize the global system boot option and driver option
//
InitializeListHead (&DriverOptionList);
InitializeListHead (&BootOptionList);
//
// Initialize hotkey service
//
InitializeHotkeyService ();
//
// Fill in FirmwareVendor and FirmwareRevision from PCDs
//
FirmwareVendor = (CHAR16 *)PcdGetPtr (PcdFirmwareVendor);
gST->FirmwareVendor = AllocateRuntimeCopyPool (StrSize (FirmwareVendor), FirmwareVendor);
ASSERT (gST->FirmwareVendor != NULL);
gST->FirmwareRevision = PcdGet32 (PcdFirmwareRevision);
//
// Fixup Tasble CRC after we updated Firmware Vendor and Revision
//
gST->Hdr.CRC32 = 0;
gBS->CalculateCrc32 ((VOID *)gST, sizeof(EFI_SYSTEM_TABLE), &gST->Hdr.CRC32);
//
// Validate Variable.
//
BdsFormalizeEfiGlobalVariable();
//
// Mark the read-only variables if the Variable Lock protocol exists
//
Status = gBS->LocateProtocol (&gEdkiiVariableLockProtocolGuid, NULL, (VOID **) &VariableLock);
DEBUG ((EFI_D_INFO, "[BdsDxe] Locate Variable Lock protocol - %r\n", Status));
if (!EFI_ERROR (Status)) {
for (Index = 0; Index < ARRAY_SIZE (mReadOnlyVariables); Index++) {
Status = VariableLock->RequestToLock (VariableLock, mReadOnlyVariables[Index], &gEfiGlobalVariableGuid);
ASSERT_EFI_ERROR (Status);
}
}
//
// Report Status Code to indicate connecting drivers will happen
//
REPORT_STATUS_CODE (
EFI_PROGRESS_CODE,
(EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_DXE_BS_PC_BEGIN_CONNECTING_DRIVERS)
);
InitializeHwErrRecSupport();
//
// Initialize L"Timeout" EFI global variable.
//
BootTimeOut = PcdGet16 (PcdPlatformBootTimeOut);
if (BootTimeOut != 0xFFFF) {
//
// If time out value equal 0xFFFF, no need set to 0xFFFF to variable area because UEFI specification
// define same behavior between no value or 0xFFFF value for L"Timeout".
//
BdsDxeSetVariableAndReportStatusCodeOnError (
L"Timeout",
&gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
sizeof (UINT16),
&BootTimeOut
);
}
//
// bugbug: platform specific code
// Initialize the platform specific string and language
//
InitializeStringSupport ();
InitializeLanguage (TRUE);
InitializeFrontPage (TRUE);
//
// Do the platform init, can be customized by OEM/IBV
//
PERF_START (NULL, "PlatformBds", "BDS", 0);
PlatformBdsInit ();
//
// Set up the device list based on EFI 1.1 variables
// process Driver#### and Load the driver's in the
// driver option list
//
BdsLibBuildOptionFromVar (&DriverOptionList, L"DriverOrder");
if (!IsListEmpty (&DriverOptionList)) {
BdsLibLoadDrivers (&DriverOptionList);
}
//
// Check if we have the boot next option
//
mBootNext = BdsLibGetVariableAndSize (
L"BootNext",
&gEfiGlobalVariableGuid,
&BootNextSize
);
//
// Setup some platform policy here
//
PlatformBdsPolicyBehavior (&DriverOptionList, &BootOptionList, BdsProcessCapsules, BdsMemoryTest);
PERF_END (NULL, "PlatformBds", "BDS", 0);
//
// BDS select the boot device to load OS
//
BdsBootDeviceSelect ();
//
// Only assert here since this is the right behavior, we should never
// return back to DxeCore.
//
ASSERT (FALSE);
return ;
}
/**
Service routine for BdsInstance->Entry(). Devices are connected, the
consoles are initialized, and the boot options are tried.
@param This Protocol Instance structure.
**/
VOID
EFIAPI
BdsEntry (
IN EFI_BDS_ARCH_PROTOCOL *This
)
{
LIST_ENTRY DriverOptionList;
LIST_ENTRY BootOptionList;
UINTN BootNextSize;
CHAR16 *FirmwareVendor;
//
// Insert the performance probe
//
PERF_END (NULL, "DXE", NULL, 0);
PERF_START (NULL, "BDS", NULL, 0);
//
// Initialize the global system boot option and driver option
//
InitializeListHead (&DriverOptionList);
InitializeListHead (&BootOptionList);
//
// Initialize hotkey service
//
InitializeHotkeyService ();
//
// Fill in FirmwareVendor and FirmwareRevision from PCDs
//
FirmwareVendor = (CHAR16 *)PcdGetPtr (PcdFirmwareVendor);
gST->FirmwareVendor = AllocateRuntimeCopyPool (StrSize (FirmwareVendor), FirmwareVendor);
ASSERT (gST->FirmwareVendor != NULL);
gST->FirmwareRevision = PcdGet32 (PcdFirmwareRevision);
//
// Fixup Tasble CRC after we updated Firmware Vendor and Revision
//
gBS->CalculateCrc32 ((VOID *)gST, sizeof(EFI_SYSTEM_TABLE), &gST->Hdr.CRC32);
//
// Validate Variable.
//
BdsFormalizeEfiGlobalVariable();
//
// Do the platform init, can be customized by OEM/IBV
//
PERF_START (NULL, "PlatformBds", "BDS", 0);
PlatformBdsInit ();
InitializeHwErrRecSupport();
//
// bugbug: platform specific code
// Initialize the platform specific string and language
//
InitializeStringSupport ();
InitializeLanguage (TRUE);
InitializeFrontPage (TRUE);
//
// Set up the device list based on EFI 1.1 variables
// process Driver#### and Load the driver's in the
// driver option list
//
BdsLibBuildOptionFromVar (&DriverOptionList, L"DriverOrder");
if (!IsListEmpty (&DriverOptionList)) {
BdsLibLoadDrivers (&DriverOptionList);
}
//
// Check if we have the boot next option
//
mBootNext = BdsLibGetVariableAndSize (
L"BootNext",
&gEfiGlobalVariableGuid,
&BootNextSize
);
//
// Setup some platform policy here
//
PlatformBdsPolicyBehavior (&DriverOptionList, &BootOptionList, BdsProcessCapsules, BdsMemoryTest);
PERF_END (NULL, "PlatformBds", "BDS", 0);
//
// BDS select the boot device to load OS
//
BdsBootDeviceSelect ();
//
// Only assert here since this is the right behavior, we should never
// return back to DxeCore.
//
ASSERT (FALSE);
return ;
}