After DxeCore finish DXE phase, gEfiBdsArchProtocolGuid->BdsEntry will be invoked\r
to enter BDS phase.\r
\r
-Copyright (c) 2004 - 2016, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>\r
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>\r
(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>\r
This program and the accompanying materials\r
{\r
UINTN Index;\r
\r
+ //\r
+ // Report Status Code to indicate BDS starts attempting booting from the UEFI BootOrder list.\r
+ //\r
+ REPORT_STATUS_CODE (EFI_PROGRESS_CODE, (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_DXE_BS_PC_ATTEMPT_BOOT_ORDER_EVENT));\r
+\r
//\r
// Attempt boot each boot option\r
//\r
}\r
\r
/**\r
+ Enter an infinite loop of calling the Boot Manager Menu.\r
\r
- Allocate a block of memory that will contain performance data to OS.\r
+ This is a last resort alternative to BdsEntry() giving up for good. This\r
+ function never returns.\r
\r
+ @param[in] BootManagerMenu The EFI_BOOT_MANAGER_LOAD_OPTION located and/or\r
+ created by the EfiBootManagerGetBootManagerMenu()\r
+ call in BdsEntry().\r
**/\r
VOID\r
-BdsAllocateMemoryForPerformanceData (\r
- VOID\r
+BdsBootManagerMenuLoop (\r
+ IN EFI_BOOT_MANAGER_LOAD_OPTION *BootManagerMenu\r
)\r
{\r
- EFI_STATUS Status;\r
- EFI_PHYSICAL_ADDRESS AcpiLowMemoryBase;\r
- EDKII_VARIABLE_LOCK_PROTOCOL *VariableLock;\r
-\r
- AcpiLowMemoryBase = 0x0FFFFFFFFULL;\r
+ EFI_INPUT_KEY Key;\r
\r
//\r
- // Allocate a block of memory that will contain performance data to OS.\r
+ // Normally BdsDxe does not print anything to the system console, but this is\r
+ // a last resort -- the end-user will likely not see any DEBUG messages\r
+ // logged in this situation.\r
//\r
- Status = gBS->AllocatePages (\r
- AllocateMaxAddress,\r
- EfiReservedMemoryType,\r
- EFI_SIZE_TO_PAGES (PERF_DATA_MAX_LENGTH),\r
- &AcpiLowMemoryBase\r
- );\r
- if (!EFI_ERROR (Status)) {\r
- //\r
- // Save the pointer to variable for use in S3 resume.\r
- //\r
- Status = BdsDxeSetVariableAndReportStatusCodeOnError (\r
- L"PerfDataMemAddr",\r
- &gPerformanceProtocolGuid,\r
- EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r
- sizeof (EFI_PHYSICAL_ADDRESS),\r
- &AcpiLowMemoryBase\r
- );\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "[Bds] PerfDataMemAddr (%08x) cannot be saved to NV storage.\n", AcpiLowMemoryBase));\r
- }\r
+ // AsciiPrint() will NULL-check gST->ConOut internally. We check gST->ConIn\r
+ // here to see if it makes sense to request and wait for a keypress.\r
+ //\r
+ if (gST->ConIn != NULL) {\r
+ AsciiPrint (\r
+ "%a: No bootable option or device was found.\n"\r
+ "%a: Press any key to enter the Boot Manager Menu.\n",\r
+ gEfiCallerBaseName,\r
+ gEfiCallerBaseName\r
+ );\r
+ BdsWaitForSingleEvent (gST->ConIn->WaitForKey, 0);\r
+\r
//\r
- // Mark L"PerfDataMemAddr" variable to read-only if the Variable Lock protocol exists\r
- // Still lock it even the variable cannot be saved to prevent it's set by 3rd party code.\r
+ // Drain any queued keys.\r
//\r
- Status = gBS->LocateProtocol (&gEdkiiVariableLockProtocolGuid, NULL, (VOID **) &VariableLock);\r
- if (!EFI_ERROR (Status)) {\r
- Status = VariableLock->RequestToLock (VariableLock, L"PerfDataMemAddr", &gPerformanceProtocolGuid);\r
- ASSERT_EFI_ERROR (Status);\r
+ while (!EFI_ERROR (gST->ConIn->ReadKeyStroke (gST->ConIn, &Key))) {\r
+ //\r
+ // just throw away Key\r
+ //\r
}\r
}\r
+\r
+ for (;;) {\r
+ EfiBootManagerBoot (BootManagerMenu);\r
+ }\r
}\r
\r
/**\r
PERF_START (NULL, "BDS", NULL, 0);\r
DEBUG ((EFI_D_INFO, "[Bds] Entry...\n"));\r
\r
- PERF_CODE (\r
- BdsAllocateMemoryForPerformanceData ();\r
- );\r
-\r
//\r
// Fill in FirmwareVendor and FirmwareRevision from PCDs\r
//\r
ASSERT_EFI_ERROR (Status);\r
\r
//\r
- // Cache and remove the "BootNext" NV variable.\r
+ // Cache the "BootNext" NV variable before calling any PlatformBootManagerLib APIs\r
+ // This could avoid the "BootNext" set by PlatformBootManagerLib be consumed in this boot.\r
//\r
GetEfiGlobalVariable2 (EFI_BOOT_NEXT_VARIABLE_NAME, (VOID **) &BootNext, &DataSize);\r
if (DataSize != sizeof (UINT16)) {\r
}\r
BootNext = NULL;\r
}\r
- Status = gRT->SetVariable (\r
- EFI_BOOT_NEXT_VARIABLE_NAME,\r
- &gEfiGlobalVariableGuid,\r
- 0,\r
- 0,\r
- NULL\r
- );\r
- //\r
- // Deleting NV variable shouldn't fail unless it doesn't exist.\r
- //\r
- ASSERT (Status == EFI_SUCCESS || Status == EFI_NOT_FOUND);\r
\r
//\r
// Initialize the platform language variables\r
(EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_DXE_BS_PC_BEGIN_CONNECTING_DRIVERS)\r
);\r
\r
+ //\r
+ // Initialize ConnectConIn event before calling platform code.\r
+ //\r
+ if (PcdGetBool (PcdConInConnectOnDemand)) {\r
+ Status = gBS->CreateEventEx (\r
+ EVT_NOTIFY_SIGNAL,\r
+ TPL_CALLBACK,\r
+ BdsDxeOnConnectConInCallBack,\r
+ NULL,\r
+ &gConnectConInEventGuid,\r
+ &gConnectConInEvent\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ gConnectConInEvent = NULL;\r
+ }\r
+ }\r
+\r
//\r
// Do the platform init, can be customized by OEM/IBV\r
// Possible things that can be done in PlatformBootManagerBeforeConsole:\r
if (PcdGetBool (PcdConInConnectOnDemand)) {\r
EfiBootManagerConnectConsoleVariable (ConOut);\r
EfiBootManagerConnectConsoleVariable (ErrOut);\r
-\r
//\r
- // Initialize ConnectConIn event\r
+ // Do not connect ConIn devices when lazy ConIn feature is ON.\r
//\r
- Status = gBS->CreateEventEx (\r
- EVT_NOTIFY_SIGNAL,\r
- TPL_CALLBACK,\r
- BdsDxeOnConnectConInCallBack,\r
- NULL,\r
- &gConnectConInEventGuid,\r
- &gConnectConInEvent\r
- );\r
- if (EFI_ERROR (Status)) {\r
- gConnectConInEvent = NULL;\r
- }\r
} else {\r
EfiBootManagerConnectAllDefaultConsoles ();\r
}\r
\r
EfiBootManagerHotkeyBoot ();\r
\r
- //\r
- // Boot to "BootNext"\r
- //\r
if (BootNext != NULL) {\r
+ //\r
+ // Delete "BootNext" NV variable before transferring control to it to prevent loops.\r
+ //\r
+ Status = gRT->SetVariable (\r
+ EFI_BOOT_NEXT_VARIABLE_NAME,\r
+ &gEfiGlobalVariableGuid,\r
+ 0,\r
+ 0,\r
+ NULL\r
+ );\r
+ //\r
+ // Deleting NV variable shouldn't fail unless it doesn't exist.\r
+ //\r
+ ASSERT (Status == EFI_SUCCESS || Status == EFI_NOT_FOUND);\r
+\r
+ //\r
+ // Boot to "BootNext"\r
+ //\r
UnicodeSPrint (BootNextVariableName, sizeof (BootNextVariableName), L"Boot%04x", *BootNext);\r
Status = EfiBootManagerVariableToLoadOption (BootNextVariableName, &LoadOption);\r
if (!EFI_ERROR (Status)) {\r
} while (BootSuccess);\r
}\r
\r
- if (BootManagerMenuStatus != EFI_NOT_FOUND) {\r
- EfiBootManagerFreeLoadOption (&BootManagerMenu);\r
- }\r
-\r
if (!BootSuccess) {\r
LoadOptions = EfiBootManagerGetLoadOptions (&LoadOptionCount, LoadOptionTypePlatformRecovery);\r
ProcessLoadOptions (LoadOptions, LoadOptionCount);\r
EfiBootManagerFreeLoadOptions (LoadOptions, LoadOptionCount);\r
}\r
\r
+ //\r
+ // If BootManagerMenu is available, fall back to it indefinitely.\r
+ //\r
+ if (BootManagerMenuStatus != EFI_NOT_FOUND) {\r
+ BdsBootManagerMenuLoop (&BootManagerMenu);\r
+ }\r
+\r
DEBUG ((EFI_D_ERROR, "[Bds] Unable to boot!\n"));\r
CpuDeadLoop ();\r
}\r
@param VendorGuid A unique identifier for the vendor.\r
@param Attributes Attributes bitmask to set for the variable.\r
@param DataSize The size in bytes of the Data buffer. Unless the EFI_VARIABLE_APPEND_WRITE, \r
- EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS, or \r
- EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS attribute is set, a size of zero \r
+ or EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS attribute is set, a size of zero\r
causes the variable to be deleted. When the EFI_VARIABLE_APPEND_WRITE attribute is \r
set, then a SetVariable() call with a DataSize of zero will not cause any change to \r
the variable value (the timestamp associated with the variable may be updated however \r
@retval EFI_DEVICE_ERROR The variable could not be retrieved due to a hardware error.\r
@retval EFI_WRITE_PROTECTED The variable in question is read-only.\r
@retval EFI_WRITE_PROTECTED The variable in question cannot be deleted.\r
- @retval EFI_SECURITY_VIOLATION The variable could not be written due to EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS \r
- or EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACESS being set, but the AuthInfo \r
- does NOT pass the validation check carried out by the firmware.\r
+ @retval EFI_SECURITY_VIOLATION The variable could not be written due to EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACESS\r
+ being set, but the AuthInfo does NOT pass the validation check carried out by the firmware.\r
\r
@retval EFI_NOT_FOUND The variable trying to be updated or deleted was not found.\r
**/\r
projects / mirror_edk2.git / blobdiff