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

[Kenneth Lautner]

Liming,
I plan on fixing those modules as well.  I created a new Bugzilla here: 3449
– VariablePolicy needs to replace VariableLock. (tianocore.org)
<https://bugzilla.tianocore.org/show_bug.cgi?id=3449>.

On Wed, Jun 9, 2021 at 5:53 PM gaoliming <gaoliming at byosoft.com.cn> wrote:

> Ken:
>   I add my comment below. Besides, some modules in MdeModulePkg still
> consumes VariableLock, such as UefiBootManagerLib, PcdDxe. Have you plan to
> fix them also?
>
> > -----邮件原件-----
> > 发件人: kenlautner3 at gmail.com <kenlautner3 at gmail.com>
> > 发送时间: 2021年6月10日 7:39
> > 收件人: devel at edk2.groups.io
> > 抄送: Jian J Wang <jian.j.wang at intel.com>; Hao A Wu
> > <hao.a.wu at intel.com>; Zhichao Gao <zhichao.gao at intel.com>; Ray Ni
> > <ray.ni at intel.com>; Liming Gao <gaoliming at byosoft.com.cn>
> > 主题: [PATCH v1 1/1] MdeModulePkg/BdsDxe: Update BdsEntry to use
> > Variable Policy
> >
> > From: Ken Lautner <klautner at microsoft.com>
>
> Please add BZ link here.
> https://bugzilla.tianocore.org/show_bug.cgi?id=3421
> >
> > 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>
> > Cc: Liming Gao <gaoliming at byosoft.com.cn>
> > 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"
> >
> Use the correct directory name to pass Windows VS tool chain and Linux GCC
> tool chain.
>
> With this change, Reviewed-by: Liming Gao <gaoliming at byosoft.com.cn>
>
> Thanks
> Liming
> >
> >
> >  #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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