After DxeCore finish DXE phase, gEfiBdsArchProtocolGuid->BdsEntry will be invoked\r
to enter BDS phase.\r
\r
-Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
\r
UINT16 *mBootNext = NULL;\r
\r
+///\r
+/// The read-only variables defined in UEFI Spec.\r
+///\r
+CHAR16 *mReadOnlyVariables[] = {\r
+ L"PlatformLangCodes",\r
+ L"LangCodes",\r
+ L"BootOptionSupport",\r
+ L"HwErrRecSupport",\r
+ L"OsIndicationsSupported"\r
+ };\r
+\r
/**\r
\r
Install Boot Device Selection Protocol\r
return Status;\r
}\r
\r
+\r
+/**\r
+ An empty function to pass error checking of CreateEventEx ().\r
+\r
+ @param Event Event whose notification function is being invoked.\r
+ @param Context Pointer to the notification function's context,\r
+ which is implementation-dependent.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+BdsEmptyCallbackFunction (\r
+ IN EFI_EVENT Event,\r
+ IN VOID *Context\r
+ )\r
+{\r
+}\r
+\r
/**\r
\r
This function attempts to boot for the boot order specified\r
CHAR16 Buffer[20];\r
BOOLEAN BootNextExist;\r
LIST_ENTRY *LinkBootNext;\r
+ EFI_EVENT ConnectConInEvent;\r
\r
//\r
// Got the latest boot option\r
//\r
BootNextExist = FALSE;\r
LinkBootNext = NULL;\r
+ ConnectConInEvent = NULL;\r
InitializeListHead (&BootLists);\r
\r
//\r
//\r
ZeroMem (Buffer, sizeof (Buffer));\r
\r
+ //\r
+ // Create Event to signal ConIn connection request\r
+ //\r
+ if (PcdGetBool (PcdConInConnectOnDemand)) {\r
+ Status = gBS->CreateEventEx (\r
+ EVT_NOTIFY_SIGNAL,\r
+ TPL_CALLBACK,\r
+ BdsEmptyCallbackFunction,\r
+ NULL,\r
+ &gConnectConInEventGuid,\r
+ &ConnectConInEvent\r
+ );\r
+ if (EFI_ERROR(Status)) {\r
+ ConnectConInEvent = NULL;\r
+ }\r
+ }\r
+\r
if (mBootNext != NULL) {\r
//\r
// Indicate we have the boot next variable, so this time\r
// Check the boot option list first\r
//\r
if (Link == &BootLists) {\r
+ //\r
+ // When LazyConIn enabled, signal connect ConIn event before enter UI\r
+ //\r
+ if (PcdGetBool (PcdConInConnectOnDemand) && ConnectConInEvent != NULL) {\r
+ gBS->SignalEvent (ConnectConInEvent);\r
+ }\r
+\r
//\r
// There are two ways to enter here:\r
// 1. There is no active boot option, give user chance to\r
// Boot success, then stop process the boot order, and\r
// present the boot manager menu, front page\r
//\r
+\r
+ //\r
+ // When LazyConIn enabled, signal connect ConIn Event before enter UI\r
+ //\r
+ if (PcdGetBool (PcdConInConnectOnDemand) && ConnectConInEvent != NULL) {\r
+ gBS->SignalEvent (ConnectConInEvent);\r
+ }\r
+\r
Timeout = 0xffff;\r
PlatformBdsEnterFrontPage (Timeout, FALSE);\r
\r
\r
}\r
\r
-/**\r
- Validate the device path instance. \r
-\r
- Only base on the length filed in the device path node to validate the device path. \r
-\r
- @param DevicePath A pointer to a device path data structure.\r
- @param MaxSize Max valid device path size. If big than this size, \r
- return error.\r
- \r
- @retval TRUE An valid device path.\r
- @retval FALSE An invalid device path.\r
-\r
-**/\r
-BOOLEAN\r
-IsValidDevicePath (\r
- IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r
- IN UINTN MaxSize\r
- )\r
-{\r
- UINTN Size;\r
- UINTN NodeSize;\r
-\r
- if (DevicePath == NULL) {\r
- return TRUE;\r
- }\r
-\r
- Size = 0;\r
-\r
- while (!IsDevicePathEnd (DevicePath)) {\r
- NodeSize = DevicePathNodeLength (DevicePath);\r
- if (NodeSize < END_DEVICE_PATH_LENGTH) {\r
- return FALSE;\r
- }\r
-\r
- Size += NodeSize;\r
- if (Size > MaxSize) {\r
- return FALSE;\r
- }\r
-\r
- DevicePath = NextDevicePathNode (DevicePath);\r
- }\r
-\r
- Size += DevicePathNodeLength (DevicePath);\r
- if (Size > MaxSize) {\r
- return FALSE;\r
- }\r
-\r
- return TRUE;\r
-}\r
-\r
/**\r
\r
Validate input console variable data. \r
@param VariableName Input console variable name.\r
\r
**/\r
-\r
VOID\r
BdsFormalizeConsoleVariable (\r
IN CHAR16 *VariableName\r
&gEfiGlobalVariableGuid,\r
&VariableSize\r
);\r
- if (!IsValidDevicePath (DevicePath, VariableSize)) { \r
+ if ((DevicePath != NULL) && !IsDevicePathValid (DevicePath, VariableSize)) { \r
Status = gRT->SetVariable (\r
VariableName,\r
&gEfiGlobalVariableGuid,\r
\r
/**\r
\r
- Validate variables. \r
-\r
- If found the device path is not a valid device path, remove the variable.\r
+ Formalize Bds global variables. \r
\r
+ 1. For ConIn/ConOut/ConErr, if found the device path is not a valid device path, remove the variable.\r
+ 2. For OsIndicationsSupported, Create a BS/RT/UINT64 variable to report caps \r
+ 3. Delete OsIndications variable if it is not NV/BS/RT UINT64\r
+ Item 3 is used to solve case when OS corrupts OsIndications. Here simply delete this NV variable.\r
+ \r
**/\r
VOID \r
BdsFormalizeEfiGlobalVariable (\r
VOID\r
)\r
{\r
+ EFI_STATUS Status;\r
+ UINT64 OsIndicationSupport;\r
+ UINT64 OsIndication;\r
+ UINTN DataSize;\r
+ UINT32 Attributes;\r
+ \r
//\r
// Validate Console variable.\r
//\r
BdsFormalizeConsoleVariable (L"ConIn");\r
BdsFormalizeConsoleVariable (L"ConOut");\r
BdsFormalizeConsoleVariable (L"ErrOut");\r
+\r
+ //\r
+ // OS indicater support variable\r
+ //\r
+ OsIndicationSupport = EFI_OS_INDICATIONS_BOOT_TO_FW_UI;\r
+ Status = gRT->SetVariable (\r
+ L"OsIndicationsSupported",\r
+ &gEfiGlobalVariableGuid,\r
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r
+ sizeof(UINT64),\r
+ &OsIndicationSupport\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ //\r
+ // If OsIndications is invalid, remove it.\r
+ // Invalid case\r
+ // 1. Data size != UINT64\r
+ // 2. OsIndication value inconsistence\r
+ // 3. OsIndication attribute inconsistence\r
+ //\r
+ OsIndication = 0;\r
+ Attributes = 0;\r
+ DataSize = sizeof(UINT64);\r
+ Status = gRT->GetVariable (\r
+ L"OsIndications",\r
+ &gEfiGlobalVariableGuid,\r
+ &Attributes,\r
+ &DataSize,\r
+ &OsIndication\r
+ );\r
+\r
+ if (!EFI_ERROR(Status)) {\r
+ if (DataSize != sizeof(UINT64) ||\r
+ (OsIndication & ~OsIndicationSupport) != 0 ||\r
+ Attributes != (EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE)){\r
+\r
+ DEBUG ((EFI_D_ERROR, "Unformalized OsIndications variable exists. Delete it\n"));\r
+ Status = gRT->SetVariable (\r
+ L"OsIndications",\r
+ &gEfiGlobalVariableGuid,\r
+ Attributes,\r
+ 0,\r
+ &OsIndication\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+ }\r
+\r
}\r
\r
/**\r
LIST_ENTRY BootOptionList;\r
UINTN BootNextSize;\r
CHAR16 *FirmwareVendor;\r
+ EFI_STATUS Status;\r
+ UINT16 BootTimeOut;\r
+ UINTN Index;\r
+ EDKII_VARIABLE_LOCK_PROTOCOL *VariableLock;\r
\r
//\r
// Insert the performance probe\r
//\r
// Fixup Tasble CRC after we updated Firmware Vendor and Revision\r
//\r
+ gST->Hdr.CRC32 = 0;\r
gBS->CalculateCrc32 ((VOID *)gST, sizeof(EFI_SYSTEM_TABLE), &gST->Hdr.CRC32);\r
\r
//\r
BdsFormalizeEfiGlobalVariable();\r
\r
//\r
- // Do the platform init, can be customized by OEM/IBV\r
+ // Mark the read-only variables if the Variable Lock protocol exists\r
//\r
- PERF_START (NULL, "PlatformBds", "BDS", 0);\r
- PlatformBdsInit ();\r
+ Status = gBS->LocateProtocol (&gEdkiiVariableLockProtocolGuid, NULL, (VOID **) &VariableLock);\r
+ DEBUG ((EFI_D_INFO, "[BdsDxe] Locate Variable Lock protocol - %r\n", Status));\r
+ if (!EFI_ERROR (Status)) {\r
+ for (Index = 0; Index < sizeof (mReadOnlyVariables) / sizeof (mReadOnlyVariables[0]); Index++) {\r
+ Status = VariableLock->RequestToLock (VariableLock, mReadOnlyVariables[Index], &gEfiGlobalVariableGuid);\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+ }\r
+\r
+ //\r
+ // Report Status Code to indicate connecting drivers will happen\r
+ //\r
+ REPORT_STATUS_CODE (\r
+ EFI_PROGRESS_CODE,\r
+ (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_DXE_BS_PC_BEGIN_CONNECTING_DRIVERS)\r
+ );\r
\r
InitializeHwErrRecSupport();\r
\r
+ //\r
+ // Initialize L"Timeout" EFI global variable.\r
+ //\r
+ BootTimeOut = PcdGet16 (PcdPlatformBootTimeOut);\r
+ if (BootTimeOut != 0xFFFF) {\r
+ //\r
+ // If time out value equal 0xFFFF, no need set to 0xFFFF to variable area because UEFI specification\r
+ // define same behavior between no value or 0xFFFF value for L"Timeout".\r
+ //\r
+ Status = gRT->SetVariable (\r
+ L"Timeout",\r
+ &gEfiGlobalVariableGuid,\r
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r
+ sizeof (UINT16),\r
+ &BootTimeOut\r
+ );\r
+ ASSERT_EFI_ERROR(Status);\r
+ }\r
+\r
//\r
// bugbug: platform specific code\r
// Initialize the platform specific string and language\r
InitializeLanguage (TRUE);\r
InitializeFrontPage (TRUE);\r
\r
+ //\r
+ // Do the platform init, can be customized by OEM/IBV\r
+ //\r
+ PERF_START (NULL, "PlatformBds", "BDS", 0);\r
+ PlatformBdsInit ();\r
+\r
//\r
// Set up the device list based on EFI 1.1 variables\r
// process Driver#### and Load the driver's in the\r
projects / mirror_edk2.git / blobdiff