[edk2-devel] [PATCH v1 1/1] MdeModulePkg/BdsDxe: Update BdsEntry to use Variable Policy

[Gao, Zhichao]

Add Liming to review as it is a change related to variable.

Thanks,
Zhichao

> -----Original Message-----
> From: kenlautner3 at gmail.com <kenlautner3 at gmail.com>
> Sent: Saturday, June 5, 2021 4:13 AM
> To: devel at edk2.groups.io
> Cc: Wang, Jian J <jian.j.wang at intel.com>; Wu, Hao A <hao.a.wu at intel.com>;
> Gao, Zhichao <zhichao.gao at intel.com>; Ni, Ray <ray.ni at intel.com>
> Subject: [PATCH v1 1/1] MdeModulePkg/BdsDxe: Update BdsEntry to use
> Variable Policy
> 
> From: Ken Lautner <klautner at microsoft.com>
> 
> Changed BdsEntry.c to use Variable Policy instead of Variable Lock as Variable
> Lock will be Deprecated eventually
> 
> Cc: Jian J Wang <jian.j.wang at intel.com>
> Cc: Hao A Wu <hao.a.wu at intel.com>
> Cc: Zhichao Gao <zhichao.gao at intel.com>
> Cc: Ray Ni <ray.ni at intel.com>
> Signed-off-by: Kenneth Lautner <kenlautner3 at gmail.com>
> ---
>  MdeModulePkg/Universal/BdsDxe/BdsDxe.inf |  4 +++-
> MdeModulePkg/Universal/BdsDxe/BdsEntry.c | 20 +++++++++++++++-----
>  2 files changed, 18 insertions(+), 6 deletions(-)
> 
> diff --git a/MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
> b/MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
> index 9310b4dccb18..76ff6a0f5fc3 100644
> --- a/MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
> +++ b/MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
> @@ -50,6 +50,8 @@
>    BaseMemoryLib   DebugLib   UefiBootManagerLib+  VariablePolicyLib+
> VariablePolicyHelperLib   PlatformBootManagerLib   PcdLib   PrintLib@@ -77,7
> +79,7 @@
>  [Protocols]   gEfiBdsArchProtocolGuid                       ## PRODUCES
> gEfiSimpleTextInputExProtocolGuid             ## CONSUMES-
> gEdkiiVariableLockProtocolGuid                ## SOMETIMES_CONSUMES+
> gEdkiiVariablePolicyProtocolGuid              ## SOMETIMES_CONSUMES
> gEfiDeferredImageLoadProtocolGuid             ## CONSUMES  [FeaturePcd]diff -
> -git a/MdeModulePkg/Universal/BdsDxe/BdsEntry.c
> b/MdeModulePkg/Universal/BdsDxe/BdsEntry.c
> index 83b773a2fa5f..13723bee299b 100644
> --- a/MdeModulePkg/Universal/BdsDxe/BdsEntry.c
> +++ b/MdeModulePkg/Universal/BdsDxe/BdsEntry.c
> @@ -15,6 +15,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
>  #include "Bds.h" #include "Language.h" #include
> "HwErrRecSupport.h"+#include "library/VariablePolicyHelperLib.h"  #define
> SET_BOOT_OPTION_SUPPORT_KEY_COUNT(a, c) {  \       (a) = ((a) &
> ~EFI_BOOT_OPTION_SUPPORT_COUNT) | (((c) << LowBitSet32
> (EFI_BOOT_OPTION_SUPPORT_COUNT)) &
> EFI_BOOT_OPTION_SUPPORT_COUNT); \@@ -670,7 +671,7 @@ BdsEntry (
>    EFI_STATUS                      Status;   UINT32                          BootOptionSupport;
> UINT16                          BootTimeOut;-  EDKII_VARIABLE_LOCK_PROTOCOL
> *VariableLock;+  EDKII_VARIABLE_POLICY_PROTOCOL  *VariablePolicy;
> UINTN                           Index;   EFI_BOOT_MANAGER_LOAD_OPTION
> LoadOption;   UINT16                          *BootNext;@@ -716,12 +717,21 @@
> BdsEntry (
>    //   // 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));+  Status = gBS-
> >LocateProtocol(&gEdkiiVariablePolicyProtocolGuid, NULL,
> (VOID**)&VariablePolicy);+  DEBUG((DEBUG_INFO, "[BdsDxe] Locate
> Variable Policy protocol - %r\n", Status));   if (!EFI_ERROR (Status)) {     for
> (Index = 0; Index < ARRAY_SIZE (mReadOnlyVariables); Index++) {-      Status
> = VariableLock->RequestToLock (VariableLock, mReadOnlyVariables[Index],
> &gEfiGlobalVariableGuid);-      ASSERT_EFI_ERROR (Status);+      Status =
> RegisterBasicVariablePolicy(+                 VariablePolicy,+
> &gEfiGlobalVariableGuid,+                 mReadOnlyVariables[Index],+
> 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+                 );+
> ASSERT_EFI_ERROR(Status);     }   } --
> 2.25.1.windows.1



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