[edk2-devel] [PATCH V4 2/2] MdeModulePkg/BdsDxe: Use a pcd to control PlatformRecovery
Gao, Zhichao
zhichao.gao at intel.com
Wed Jun 19 03:10:23 UTC 2019
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1678
Use the PcdPlatformRecoverySupport to control the function
of platform recovery in BDS.
First, set the variable's ("OsIndicationsSupported")
EFI_OS_INDICATIONS_START_PLATFORM_RECOVERY bit base on the pcd.
It would affect the variable "OsIndications".
While the platform does not support the platform recovery,
it is inappropriate to set a PlatformRecovery#### variable. So
skip setting the variable. But it should remain the behavior of
booting from a default file path (such as \EFI\BOOT\BOOTX64.EFI)
to be compatible with the previous version UEFI spec.
Add memory check before build platform default boot option. If
fail to allocate memory for the defualt boot file path, put the
system into dead loop to indicate it is unable to boot.
Cc: Jian J Wang <jian.j.wang at intel.com>
Cc: Hao Wu <hao.a.wu at intel.com>
Cc: Ray Ni <ray.ni at intel.com>
Cc: Star Zeng <star.zeng at intel.com>
Cc: Liming Gao <liming.gao at intel.com>
Cc: Sean Brogan <sean.brogan at microsoft.com>
Cc: Michael Turner <Michael.Turner at microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew at microsoft.com>
Signed-off-by: Zhichao Gao <zhichao.gao at intel.com>
---
MdeModulePkg/Universal/BdsDxe/BdsDxe.inf | 3 +-
MdeModulePkg/Universal/BdsDxe/BdsEntry.c | 71 +++++++++++++++---------
2 files changed, 47 insertions(+), 27 deletions(-)
diff --git a/MdeModulePkg/Universal/BdsDxe/BdsDxe.inf b/MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
index 6913389d34..7f94ca17df 100644
--- a/MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
+++ b/MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
@@ -5,7 +5,7 @@
# gEfiBdsArchProtocolGuid. After DxeCore finish dispatching, DxeCore will invoke Entry
# interface of protocol gEfiBdsArchProtocolGuid, then BDS phase is entered.
#
-# Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2019, Intel Corporation. All rights reserved.<BR>
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
##
@@ -95,6 +95,7 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdConInConnectOnDemand ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdErrorCodeSetVariable ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdTestKeyUsed ## CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdPlatformRecoverySupport ## CONSUMES
[Depex]
TRUE
diff --git a/MdeModulePkg/Universal/BdsDxe/BdsEntry.c b/MdeModulePkg/Universal/BdsDxe/BdsEntry.c
index 9d312bd982..4f3168b62a 100644
--- a/MdeModulePkg/Universal/BdsDxe/BdsEntry.c
+++ b/MdeModulePkg/Universal/BdsDxe/BdsEntry.c
@@ -5,7 +5,7 @@
After DxeCore finish DXE phase, gEfiBdsArchProtocolGuid->BdsEntry will be invoked
to enter BDS phase.
-Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2019, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -546,10 +546,14 @@ BdsFormalizeOSIndicationVariable (
//
Status = EfiBootManagerGetBootManagerMenu (&BootManagerMenu);
if (Status != EFI_NOT_FOUND) {
- OsIndicationSupport = EFI_OS_INDICATIONS_BOOT_TO_FW_UI | EFI_OS_INDICATIONS_START_PLATFORM_RECOVERY;
+ OsIndicationSupport = EFI_OS_INDICATIONS_BOOT_TO_FW_UI;
EfiBootManagerFreeLoadOption (&BootManagerMenu);
} else {
- OsIndicationSupport = EFI_OS_INDICATIONS_START_PLATFORM_RECOVERY;
+ OsIndicationSupport = 0;
+ }
+
+ if (PcdGetBool (PcdPlatformRecoverySupport)) {
+ OsIndicationSupport |= EFI_OS_INDICATIONS_START_PLATFORM_RECOVERY;
}
Status = gRT->SetVariable (
@@ -662,6 +666,7 @@ BdsEntry (
BOOLEAN BootSuccess;
EFI_DEVICE_PATH_PROTOCOL *FilePath;
EFI_STATUS BootManagerMenuStatus;
+ EFI_BOOT_MANAGER_LOAD_OPTION PlatformDefaultBootOption;
HotkeyTriggered = NULL;
Status = EFI_SUCCESS;
@@ -763,14 +768,13 @@ BdsEntry (
//
InitializeLanguage (TRUE);
- //
- // System firmware must include a PlatformRecovery#### variable specifying
- // a short-form File Path Media Device Path containing the platform default
- // file path for removable media
- //
FilePath = FileDevicePath (NULL, EFI_REMOVABLE_MEDIA_FILE_NAME);
+ if (FilePath == NULL) {
+ DEBUG ((DEBUG_ERROR, "Fail to allocate memory for defualt boot file path. Unable to boot.\n"));
+ CpuDeadLoop ();
+ }
Status = EfiBootManagerInitializeLoadOption (
- &LoadOption,
+ &PlatformDefaultBootOption,
LoadOptionNumberUnassigned,
LoadOptionTypePlatformRecovery,
LOAD_OPTION_ACTIVE,
@@ -780,24 +784,31 @@ BdsEntry (
0
);
ASSERT_EFI_ERROR (Status);
- LoadOptions = EfiBootManagerGetLoadOptions (&LoadOptionCount, LoadOptionTypePlatformRecovery);
- if (EfiBootManagerFindLoadOption (&LoadOption, LoadOptions, LoadOptionCount) == -1) {
- for (Index = 0; Index < LoadOptionCount; Index++) {
- //
- // The PlatformRecovery#### options are sorted by OptionNumber.
- // Find the the smallest unused number as the new OptionNumber.
- //
- if (LoadOptions[Index].OptionNumber != Index) {
- break;
+
+ //
+ // System firmware must include a PlatformRecovery#### variable specifying
+ // a short-form File Path Media Device Path containing the platform default
+ // file path for removable media if the platform supports Platform Recovery.
+ //
+ if (PcdGetBool (PcdPlatformRecoverySupport)) {
+ LoadOptions = EfiBootManagerGetLoadOptions (&LoadOptionCount, LoadOptionTypePlatformRecovery);
+ if (EfiBootManagerFindLoadOption (&PlatformDefaultBootOption, LoadOptions, LoadOptionCount) == -1) {
+ for (Index = 0; Index < LoadOptionCount; Index++) {
+ //
+ // The PlatformRecovery#### options are sorted by OptionNumber.
+ // Find the the smallest unused number as the new OptionNumber.
+ //
+ if (LoadOptions[Index].OptionNumber != Index) {
+ break;
+ }
}
+ PlatformDefaultBootOption.OptionNumber = Index;
+ Status = EfiBootManagerLoadOptionToVariable (&PlatformDefaultBootOption);
+ ASSERT_EFI_ERROR (Status);
}
- LoadOption.OptionNumber = Index;
- Status = EfiBootManagerLoadOptionToVariable (&LoadOption);
- ASSERT_EFI_ERROR (Status);
+ EfiBootManagerFreeLoadOptions (LoadOptions, LoadOptionCount);
}
- EfiBootManagerFreeLoadOption (&LoadOption);
FreePool (FilePath);
- EfiBootManagerFreeLoadOptions (LoadOptions, LoadOptionCount);
//
// Report Status Code to indicate connecting drivers will happen
@@ -1043,10 +1054,18 @@ BdsEntry (
}
if (!BootSuccess) {
- LoadOptions = EfiBootManagerGetLoadOptions (&LoadOptionCount, LoadOptionTypePlatformRecovery);
- ProcessLoadOptions (LoadOptions, LoadOptionCount);
- EfiBootManagerFreeLoadOptions (LoadOptions, LoadOptionCount);
+ if (PlatformRecovery) {
+ LoadOptions = EfiBootManagerGetLoadOptions (&LoadOptionCount, LoadOptionTypePlatformRecovery);
+ ProcessLoadOptions (LoadOptions, LoadOptionCount);
+ EfiBootManagerFreeLoadOptions (LoadOptions, LoadOptionCount);
+ } else {
+ //
+ // When platform recovery is not enabled, still boot to platform default file path.
+ //
+ EfiBootManagerProcessLoadOption (&PlatformDefaultBootOption);
+ }
}
+ EfiBootManagerFreeLoadOption (&PlatformDefaultBootOption);
DEBUG ((EFI_D_ERROR, "[Bds] Unable to boot!\n"));
PlatformBootManagerUnableToBoot ();
--
2.21.0.windows.1
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