From: Bret Barkelew <brbar...@microsoft.com>
https://bugzilla.tianocore.org/show_bug.cgi?id=2522
Now that everything should be moved to
VariablePolicy, drop support for the
deprecated VarLock SMI interface and
associated functions from variable RuntimeDxe.
Cc: Jian J Wang <jian.j.w...@intel.com>
Cc: Hao A Wu <hao.a...@intel.com>
Cc: Liming Gao <liming....@intel.com>
Signed-off-by: Michael Kubacki <michael.kuba...@microsoft.com>
---
MdeModulePkg/Universal/Variable/RuntimeDxe/VarCheck.c | 49
+-------------
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableLockRequstToLock.c | 71
++++++++++++++++++++
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf | 1 +
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf | 1 +
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf | 1 +
5 files changed, 75 insertions(+), 48 deletions(-)
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VarCheck.c
b/MdeModulePkg/Universal/Variable/RuntimeDxe/VarCheck.c
index f15219df5eb8..486d85b022e1 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VarCheck.c
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VarCheck.c
@@ -3,60 +3,13 @@
and variable lock protocol based on VarCheckLib.
Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) Microsoft Corporation.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "Variable.h"
-/**
- Mark a variable that will become read-only after leaving the DXE phase of
execution.
- Write request coming from SMM environment through EFI_SMM_VARIABLE_PROTOCOL
is allowed.
-
- @param[in] This The VARIABLE_LOCK_PROTOCOL instance.
- @param[in] VariableName A pointer to the variable name that will be made
read-only subsequently.
- @param[in] VendorGuid A pointer to the vendor GUID that will be made
read-only subsequently.
-
- @retval EFI_SUCCESS The variable specified by the VariableName and
the VendorGuid was marked
- as pending to be read-only.
- @retval EFI_INVALID_PARAMETER VariableName or VendorGuid is NULL.
- Or VariableName is an empty string.
- @retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or
EFI_EVENT_GROUP_READY_TO_BOOT has
- already been signaled.
- @retval EFI_OUT_OF_RESOURCES There is not enough resource to hold the lock
request.
-**/
-EFI_STATUS
-EFIAPI
-VariableLockRequestToLock (
- IN CONST EDKII_VARIABLE_LOCK_PROTOCOL *This,
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid
- )
-{
- EFI_STATUS Status;
- VAR_CHECK_VARIABLE_PROPERTY Property;
-
- AcquireLockOnlyAtBootTime
(&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);
-
- Status = VarCheckLibVariablePropertyGet (VariableName, VendorGuid,
&Property);
- if (!EFI_ERROR (Status)) {
- Property.Property |= VAR_CHECK_VARIABLE_PROPERTY_READ_ONLY;
- } else {
- Property.Revision = VAR_CHECK_VARIABLE_PROPERTY_REVISION;
- Property.Property = VAR_CHECK_VARIABLE_PROPERTY_READ_ONLY;
- Property.Attributes = 0;
- Property.MinSize = 1;
- Property.MaxSize = MAX_UINTN;
- }
- Status = VarCheckLibVariablePropertySet (VariableName, VendorGuid,
&Property);
-
- DEBUG ((EFI_D_INFO, "[Variable] Lock: %g:%s %r\n", VendorGuid, VariableName,
Status));
-
- ReleaseLockOnlyAtBootTime
(&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);
-
- return Status;
-}
-
/**
Register SetVariable check handler.
diff --git
a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableLockRequstToLock.c
b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableLockRequstToLock.c
new file mode 100644
index 000000000000..1f7f0b7ef06c
--- /dev/null
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableLockRequstToLock.c
@@ -0,0 +1,71 @@
+/** @file -- VariableLockRequstToLock.c
+Temporary location of the RequestToLock shim code while
+projects are moved to VariablePolicy. Should be removed when deprecated.
+
+Copyright (c) Microsoft Corporation.
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Uefi.h>
+
+#include <Library/DebugLib.h>
+#include <Library/MemoryAllocationLib.h>
+
+#include <Protocol/VariableLock.h>
+
+#include <Protocol/VariablePolicy.h>
+#include <Library/VariablePolicyLib.h>
+#include <Library/VariablePolicyHelperLib.h>
+
+
+/**
+ DEPRECATED. THIS IS ONLY HERE AS A CONVENIENCE WHILE PORTING.
+ Mark a variable that will become read-only after leaving the DXE phase of
execution.
+ Write request coming from SMM environment through EFI_SMM_VARIABLE_PROTOCOL
is allowed.
+
+ @param[in] This The VARIABLE_LOCK_PROTOCOL instance.
+ @param[in] VariableName A pointer to the variable name that will be made
read-only subsequently.
+ @param[in] VendorGuid A pointer to the vendor GUID that will be made
read-only subsequently.
+
+ @retval EFI_SUCCESS The variable specified by the VariableName and
the VendorGuid was marked
+ as pending to be read-only.
+ @retval EFI_INVALID_PARAMETER VariableName or VendorGuid is NULL.
+ Or VariableName is an empty string.
+ @retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or
EFI_EVENT_GROUP_READY_TO_BOOT has
+ already been signaled.
+ @retval EFI_OUT_OF_RESOURCES There is not enough resource to hold the lock
request.
+**/
+EFI_STATUS
+EFIAPI
+VariableLockRequestToLock (
+ IN CONST EDKII_VARIABLE_LOCK_PROTOCOL *This,
+ IN CHAR16 *VariableName,
+ IN EFI_GUID *VendorGuid
+ )
+{
+ EFI_STATUS Status;
+ VARIABLE_POLICY_ENTRY *NewPolicy;
+
+ NewPolicy = NULL;
+ Status = CreateBasicVariablePolicy( VendorGuid,
+ VariableName,
+ VARIABLE_POLICY_NO_MIN_SIZE,
+ VARIABLE_POLICY_NO_MAX_SIZE,
+ VARIABLE_POLICY_NO_MUST_ATTR,
+ VARIABLE_POLICY_NO_CANT_ATTR,
+ VARIABLE_POLICY_TYPE_LOCK_NOW,
+ &NewPolicy );
+ if (!EFI_ERROR( Status )) {
+ Status = RegisterVariablePolicy( NewPolicy );
+ }
+ if (EFI_ERROR( Status )) {
+ DEBUG(( DEBUG_ERROR, "%a - Failed to lock variable %s! %r\n",
__FUNCTION__, VariableName, Status ));
+ ASSERT_EFI_ERROR( Status );
+ }
+ if (NewPolicy != NULL) {
+ FreePool( NewPolicy );
+ }
+
+ return Status;
+}
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
index f96a73b71c02..2d1261ef0fba 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
@@ -49,6 +49,7 @@
VarCheck.c
VariableExLib.c
SpeculationBarrierDxe.c
+ VariableLockRequstToLock.c
[Packages]
MdePkg/MdePkg.dec
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf
b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf
index bbc8d2080193..26fbad97339f 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf
@@ -58,6 +58,7 @@
VariableExLib.c
TcgMorLockSmm.c
SpeculationBarrierSmm.c
+ VariableLockRequstToLock.c
[Packages]
MdePkg/MdePkg.dec
diff --git
a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
index 62f2f9252f43..7c6fdf4d65fd 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
@@ -58,6 +58,7 @@
VariableExLib.c
TcgMorLockSmm.c
SpeculationBarrierSmm.c
+ VariableLockRequstToLock.c
[Packages]
MdePkg/MdePkg.dec
--
2.16.3.windows.1
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