sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add EDKII_VARIABLE_LOCK_PROTOCOL and the implementation in MdeModulePkg variable drivers.

Browse Source 
Add code in BdsDxe driver to call the protocol to mark the read-only variables defined in the UEFI Spec.

Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Guo Dong <guo.dong@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14372 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
niruiyu
2013-05-17 03:49:35 +00:00
parent efffd9c17e
commit ff8438477f
14 changed files with 487 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
IntelFrameworkModulePkg/Universal/BdsDxe/Bds.h
View File

@@ -1,7 +1,7 @@
/** @file
Head file for BDS Architectural Protocol implementation
Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -47,6 +47,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Protocol/SimpleTextInEx.h>
#include <Protocol/DriverHealth.h>
#include <Protocol/BootLogo.h>
#include <Protocol/VariableLock.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/PrintLib.h>

3
IntelFrameworkModulePkg/Universal/BdsDxe/BdsDxe.inf
View File

@@ -14,7 +14,7 @@
# BDSDxe also maintain the UI for "Boot Manager, Boot Maintaince Manager, Device Manager" which
# is used for user to configure boot option or maintain hardware device.
#
# Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
@@ -160,6 +160,7 @@
gEfiDriverHealthProtocolGuid ## PROTOCOL SOMETIMES_CONSUMES
gEfiPciIoProtocolGuid ## PROTOCOL CONSUMES
gEfiBootLogoProtocolGuid ## PROTOCOL SOMETIMES_CONSUMES
gEdkiiVariableLockProtocolGuid ## PROTOCOL CONSUMES
[FeaturePcd]
gEfiMdePkgTokenSpaceGuid.PcdUefiVariableDefaultLangDeprecate

37
IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c
View File

@@ -38,6 +38,17 @@ EFI_BDS_ARCH_PROTOCOL gBds = {
UINT16 *mBootNext = NULL;
///
/// The read-only variables defined in UEFI Spec.
///
CHAR16 *mReadOnlyVariables[] = {
L"PlatformLangCodes",
L"LangCodes",
L"BootOptionSupport",
L"HwErrRecSupport",
L"OsIndicationsSupported"
};
/**
Install Boot Device Selection Protocol
@@ -459,6 +470,8 @@ BdsEntry (
CHAR16 *FirmwareVendor;
EFI_STATUS Status;
UINT16 BootTimeOut;
UINTN Index;
EDKII_VARIABLE_LOCK_PROTOCOL *VariableLock;
//
// Insert the performance probe
@@ -496,6 +509,18 @@ BdsEntry (
//
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 < sizeof (mReadOnlyVariables) / sizeof (mReadOnlyVariables[0]); Index++) {
Status = VariableLock->RequestToLock (VariableLock, mReadOnlyVariables[Index], &gEfiGlobalVariableGuid);
ASSERT_EFI_ERROR (Status);
}
}
//
// Report Status Code to indicate connecting drivers will happen
//
@@ -504,12 +529,6 @@ BdsEntry (
(EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_DXE_BS_PC_BEGIN_CONNECTING_DRIVERS)
);
//
// Do the platform init, can be customized by OEM/IBV
//
PERF_START (NULL, "PlatformBds", "BDS", 0);
PlatformBdsInit ();
InitializeHwErrRecSupport();
//
@@ -539,6 +558,12 @@ BdsEntry (
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