/**
This function uses policy data from the platform to determine what operating
system or system utility should be loaded and invoked. This function call
also optionally make the use of user input to determine the operating system
or system utility to be loaded and invoked. When the DXE Core has dispatched
all the drivers on the dispatch queue, this function is called. This
function will attempt to connect the boot devices required to load and invoke
the selected operating system or system utility. During this process,
additional firmware volumes may be discovered that may contain addition DXE
drivers that can be dispatched by the DXE Core. If a boot device cannot be
fully connected, this function calls the DXE Service Dispatch() to allow the
DXE drivers from any newly discovered firmware volumes to be dispatched.
Then the boot device connection can be attempted again. If the same boot
device connection operation fails twice in a row, then that boot device has
failed, and should be skipped. This function should never return.
@param This The EFI_BDS_ARCH_PROTOCOL instance.
@return None.
**/
VOID
EFIAPI
BdsEntry (
IN EFI_BDS_ARCH_PROTOCOL *This
)
{
UINTN Size;
EFI_STATUS Status;
UINT16 *BootNext;
UINTN BootNextSize;
CHAR16 BootVariableName[9];
EFI_EVENT EndOfDxeEvent;
//
// Signal EndOfDxe PI Event
//
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
EmptyCallbackFunction,
NULL,
&gEfiEndOfDxeEventGroupGuid,
&EndOfDxeEvent
);
if (!EFI_ERROR (Status)) {
gBS->SignalEvent (EndOfDxeEvent);
}
PERF_END (NULL, "DXE", NULL, 0);
//
// Declare the Firmware Vendor
//
if (FixedPcdGetPtr(PcdFirmwareVendor) != NULL) {
Size = 0x100;
gST->FirmwareVendor = AllocateRuntimePool (Size);
ASSERT (gST->FirmwareVendor != NULL);
UnicodeSPrint (gST->FirmwareVendor, Size, L"%a EFI %a %a", PcdGetPtr(PcdFirmwareVendor), __DATE__, __TIME__);
}
//
// Fixup Table CRC after we updated Firmware Vendor
//
gST->Hdr.CRC32 = 0;
Status = gBS->CalculateCrc32 ((VOID*)gST, gST->Hdr.HeaderSize, &gST->Hdr.CRC32);
ASSERT_EFI_ERROR (Status);
// If BootNext environment variable is defined then we just load it !
BootNextSize = sizeof(UINT16);
Status = GetGlobalEnvironmentVariable (L"BootNext", NULL, &BootNextSize, (VOID**)&BootNext);
if (!EFI_ERROR(Status)) {
ASSERT(BootNextSize == sizeof(UINT16));
// Generate the requested Boot Entry variable name
UnicodeSPrint (BootVariableName, 9 * sizeof(CHAR16), L"Boot%04X", *BootNext);
// Set BootCurrent variable
gRT->SetVariable (L"BootCurrent", &gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
BootNextSize, BootNext);
FreePool (BootNext);
// Start the requested Boot Entry
Status = BdsStartBootOption (BootVariableName);
if (Status != EFI_NOT_FOUND) {
// BootNext has not been succeeded launched
if (EFI_ERROR(Status)) {
Print(L"Fail to start BootNext.\n");
}
// Delete the BootNext environment variable
gRT->SetVariable (L"BootNext", &gEfiGlobalVariableGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
0, NULL);
}
// Clear BootCurrent variable
gRT->SetVariable (L"BootCurrent", &gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
0, NULL);
}
// If Boot Order does not exist then create a default entry
DefineDefaultBootEntries ();
// Now we need to setup the EFI System Table with information about the console devices.
InitializeConsole ();
//
// Update the CRC32 in the EFI System Table header
//
gST->Hdr.CRC32 = 0;
Status = gBS->CalculateCrc32 ((VOID*)gST, gST->Hdr.HeaderSize, &gST->Hdr.CRC32);
ASSERT_EFI_ERROR (Status);
// Timer before initiating the default boot selection
StartDefaultBootOnTimeout ();
// Start the Boot Menu
Status = BootMenuMain ();
ASSERT_EFI_ERROR (Status);
}
/**
This function uses policy data from the platform to determine what operating
system or system utility should be loaded and invoked. This function call
also optionally make the use of user input to determine the operating system
or system utility to be loaded and invoked. When the DXE Core has dispatched
all the drivers on the dispatch queue, this function is called. This
function will attempt to connect the boot devices required to load and invoke
the selected operating system or system utility. During this process,
additional firmware volumes may be discovered that may contain addition DXE
drivers that can be dispatched by the DXE Core. If a boot device cannot be
fully connected, this function calls the DXE Service Dispatch() to allow the
DXE drivers from any newly discovered firmware volumes to be dispatched.
Then the boot device connection can be attempted again. If the same boot
device connection operation fails twice in a row, then that boot device has
failed, and should be skipped. This function should never return.
@param This The EFI_BDS_ARCH_PROTOCOL instance.
@return None.
**/
VOID
EFIAPI
BdsEntry (
IN EFI_BDS_ARCH_PROTOCOL *This
)
{
UINTN Size;
EFI_STATUS Status;
UINT16 *BootNext;
UINTN BootNextSize;
CHAR16 BootVariableName[9];
EFI_EVENT EndOfDxeEvent;
VOID *NewBase;
//
// Signal EndOfDxe PI Event
//
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
EmptyCallbackFunction,
NULL,
&gEfiEndOfDxeEventGroupGuid,
&EndOfDxeEvent
);
if (!EFI_ERROR (Status)) {
gBS->SignalEvent (EndOfDxeEvent);
}
PERF_END (NULL, "DXE", NULL, 0);
OemPostEndIndicator();
//?им1??и▓бф?иж?б└бзиви┤и║б└1?б└и╣бд?бу?бъ?ж╠б└ижи║??2G?и▓бф?и║б└бъ??и▓бф?2?1?ио?бъ??ик?ив??HOB?D
//memory reserved идидDикимивижy?asystem memory идидDик
NewBase = AllocatePages (EFI_SIZE_TO_PAGES(SIZE_2GB));
if (NULL == NewBase)
{
DEBUG ((EFI_D_ERROR, "There are not enough memory space..........\n"));
}
else
{
FreePages(NewBase,EFI_SIZE_TO_PAGES(SIZE_2GB));
}
//
// Declare the Firmware Vendor
//
if (FixedPcdGetPtr(PcdFirmwareVendor) != NULL) {
Size = 0x100;
gST->FirmwareVendor = AllocateRuntimePool (Size);
ASSERT (gST->FirmwareVendor != NULL);
UnicodeSPrint (gST->FirmwareVendor, Size, L"%a EFI %a %a", PcdGetPtr(PcdFirmwareVendor), __DATE__, __TIME__);
}
//
// Fixup Table CRC after we updated Firmware Vendor
//
gST->Hdr.CRC32 = 0;
Status = gBS->CalculateCrc32 ((VOID*)gST, gST->Hdr.HeaderSize, &gST->Hdr.CRC32);
ASSERT_EFI_ERROR (Status);
if (EFI_ERROR (Status))
{
//for fortify
}
// If BootNext environment variable is defined then we just load it !
BootNextSize = sizeof(UINT16);
Status = GetGlobalEnvironmentVariable (L"BootNext", NULL, &BootNextSize, (VOID**)&BootNext);
if (!EFI_ERROR(Status)) {
ASSERT(BootNextSize == sizeof(UINT16));
// Generate the requested Boot Entry variable name
UnicodeSPrint (BootVariableName, 9 * sizeof(CHAR16), L"Boot%04X", *BootNext);
// Set BootCurrent variable
gRT->SetVariable (L"BootCurrent", &gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
BootNextSize, BootNext);
FreePool (BootNext);
// Start the requested Boot Entry
Status = BdsStartBootOption (BootVariableName);
if (Status != EFI_NOT_FOUND) {
// BootNext has not been succeeded launched
if (EFI_ERROR(Status)) {
Print(L"Fail to start BootNext.\n");
}
// Delete the BootNext environment variable
gRT->SetVariable (L"BootNext", &gEfiGlobalVariableGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
0, NULL);
}
// Clear BootCurrent variable
gRT->SetVariable (L"BootCurrent", &gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
0, NULL);
}
// If Boot Order does not exist then create a default entry
DefineDefaultBootEntries ();
// Now we need to setup the EFI System Table with information about the console devices.
InitializeConsole ();
//
// Update the CRC32 in the EFI System Table header
//
gST->Hdr.CRC32 = 0;
Status = gBS->CalculateCrc32 ((VOID*)gST, gST->Hdr.HeaderSize, &gST->Hdr.CRC32);
ASSERT_EFI_ERROR (Status);
if (EFI_ERROR (Status))
{
//for fortify
}
// Timer before initiating the default boot selection
StartDefaultBootOnTimeout ();
Status = VerifyBootLineEntry ();
if(EFI_ERROR(Status))
{
DEBUG((EFI_D_ERROR,"Input Password Error, Boot failed!\n"));
return;
}
// Start the Boot Menu
Status = BootMenuMain ();
ASSERT_EFI_ERROR (Status);
if (EFI_ERROR (Status))
{
//for fortify
}
}