https://bugzilla.tianocore.org/show_bug.cgi?id=3525
After PciSegmentLib using Dynamic PCD for Pcie base address such
long delay found in FSP. The root cause is some of the PCD service
PPIs not shadowed to memory and flash cache may have been disabled
in NotifyPhase stage. Solution is to shadow all PCD service PPIs
to memory.
Signed-off-by: GregX Yeh <gregx.yeh@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
---
MdeModulePkg/Universal/PCD/Pei/Pcd.c | 71 +++++++++++++++++++++++++++-
1 file changed, 70 insertions(+), 1 deletion(-)
diff --git a/MdeModulePkg/Universal/PCD/Pei/Pcd.c b/MdeModulePkg/Universal/PCD/Pei/Pcd.c
index 9c6346924f..f31e0be35f 100644
--- a/MdeModulePkg/Universal/PCD/Pei/Pcd.c
+++ b/MdeModulePkg/Universal/PCD/Pei/Pcd.c
@@ -1,7 +1,7 @@
/** @file
All Pcd Ppi services are implemented here.
-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2021, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -339,6 +339,75 @@ PcdPeimInit (
{
EFI_STATUS Status;
+ Status = PeiServicesRegisterForShadow (FileHandle);
+ if (Status == EFI_ALREADY_STARTED) {
+ //
+ // This is now starting in memory, the second time starting.
+ //
+ EFI_PEI_PPI_DESCRIPTOR *OldPpiList;
+ EFI_PEI_PPI_DESCRIPTOR *OldPpiList2;
+ VOID *Ppi;
+ VOID *Ppi2;
+
+ OldPpiList = NULL;
+ Status = PeiServicesLocatePpi (
+ &gPcdPpiGuid,
+ 0,
+ &OldPpiList,
+ &Ppi
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ if (OldPpiList != NULL) {
+ Status = PeiServicesReInstallPpi (OldPpiList, &mPpiList[0]);
+ ASSERT_EFI_ERROR (Status);
+ }
+
+ OldPpiList2 = NULL;
+ Status = PeiServicesLocatePpi (
+ &gGetPcdInfoPpiGuid,
+ 0,
+ &OldPpiList2,
+ &Ppi2
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ if (OldPpiList2 != NULL) {
+ Status = PeiServicesReInstallPpi (OldPpiList2, &mPpiList2[0]);
+ ASSERT_EFI_ERROR (Status);
+ }
+
+ OldPpiList = NULL;
+ Status = PeiServicesLocatePpi (
+ &gEfiPeiPcdPpiGuid,
+ 0,
+ &OldPpiList,
+ &Ppi
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ if (OldPpiList != NULL) {
+ Status = PeiServicesReInstallPpi (OldPpiList, &mPpiList[1]);
+ ASSERT_EFI_ERROR (Status);
+ }
+
+ OldPpiList2 = NULL;
+ Status = PeiServicesLocatePpi (
+ &gEfiGetPcdInfoPpiGuid,
+ 0,
+ &OldPpiList2,
+ &Ppi2
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ if (OldPpiList2 != NULL) {
+ Status = PeiServicesReInstallPpi (OldPpiList2, &mPpiList2[1]);
+ ASSERT_EFI_ERROR (Status);
+ }
+
+ return Status;
+ }
+
BuildPcdDatabase (FileHandle);
//
--
2.32.0.windows.1
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Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Regards,
Jian
> -----Original Message-----
> From: Yeh, GregX <gregx.yeh@intel.com>
> Sent: Monday, August 09, 2021 10:28 AM
> To: devel@edk2.groups.io
> Cc: Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>;
> Bi, Dandan <dandan.bi@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>
> Subject: [PATCH] MdeModulePkg PCD: FSP NotifyPhase APIs caused 100ms delay
>
> https://bugzilla.tianocore.org/show_bug.cgi?id=3525
>
> After PciSegmentLib using Dynamic PCD for Pcie base address such
> long delay found in FSP. The root cause is some of the PCD service
> PPIs not shadowed to memory and flash cache may have been disabled
> in NotifyPhase stage. Solution is to shadow all PCD service PPIs
> to memory.
>
> Signed-off-by: GregX Yeh <gregx.yeh@intel.com>
> Cc: Jian J Wang <jian.j.wang@intel.com>
> Cc: Hao A Wu <hao.a.wu@intel.com>
> Cc: Dandan Bi <dandan.bi@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> ---
> MdeModulePkg/Universal/PCD/Pei/Pcd.c | 71
> +++++++++++++++++++++++++++-
> 1 file changed, 70 insertions(+), 1 deletion(-)
>
> diff --git a/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> b/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> index 9c6346924f..f31e0be35f 100644
> --- a/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> +++ b/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> @@ -1,7 +1,7 @@
> /** @file
>
> All Pcd Ppi services are implemented here.
>
>
>
> -Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
>
> +Copyright (c) 2006 - 2021, Intel Corporation. All rights reserved.<BR>
>
> (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
>
>
> @@ -339,6 +339,75 @@ PcdPeimInit (
> {
>
> EFI_STATUS Status;
>
>
>
> + Status = PeiServicesRegisterForShadow (FileHandle);
>
> + if (Status == EFI_ALREADY_STARTED) {
>
> + //
>
> + // This is now starting in memory, the second time starting.
>
> + //
>
> + EFI_PEI_PPI_DESCRIPTOR *OldPpiList;
>
> + EFI_PEI_PPI_DESCRIPTOR *OldPpiList2;
>
> + VOID *Ppi;
>
> + VOID *Ppi2;
>
> +
>
> + OldPpiList = NULL;
>
> + Status = PeiServicesLocatePpi (
>
> + &gPcdPpiGuid,
>
> + 0,
>
> + &OldPpiList,
>
> + &Ppi
>
> + );
>
> + ASSERT_EFI_ERROR (Status);
>
> +
>
> + if (OldPpiList != NULL) {
>
> + Status = PeiServicesReInstallPpi (OldPpiList, &mPpiList[0]);
>
> + ASSERT_EFI_ERROR (Status);
>
> + }
>
> +
>
> + OldPpiList2 = NULL;
>
> + Status = PeiServicesLocatePpi (
>
> + &gGetPcdInfoPpiGuid,
>
> + 0,
>
> + &OldPpiList2,
>
> + &Ppi2
>
> + );
>
> + ASSERT_EFI_ERROR (Status);
>
> +
>
> + if (OldPpiList2 != NULL) {
>
> + Status = PeiServicesReInstallPpi (OldPpiList2, &mPpiList2[0]);
>
> + ASSERT_EFI_ERROR (Status);
>
> + }
>
> +
>
> + OldPpiList = NULL;
>
> + Status = PeiServicesLocatePpi (
>
> + &gEfiPeiPcdPpiGuid,
>
> + 0,
>
> + &OldPpiList,
>
> + &Ppi
>
> + );
>
> + ASSERT_EFI_ERROR (Status);
>
> +
>
> + if (OldPpiList != NULL) {
>
> + Status = PeiServicesReInstallPpi (OldPpiList, &mPpiList[1]);
>
> + ASSERT_EFI_ERROR (Status);
>
> + }
>
> +
>
> + OldPpiList2 = NULL;
>
> + Status = PeiServicesLocatePpi (
>
> + &gEfiGetPcdInfoPpiGuid,
>
> + 0,
>
> + &OldPpiList2,
>
> + &Ppi2
>
> + );
>
> + ASSERT_EFI_ERROR (Status);
>
> +
>
> + if (OldPpiList2 != NULL) {
>
> + Status = PeiServicesReInstallPpi (OldPpiList2, &mPpiList2[1]);
>
> + ASSERT_EFI_ERROR (Status);
>
> + }
>
> +
>
> + return Status;
>
> + }
>
> +
>
> BuildPcdDatabase (FileHandle);
>
>
>
> //
>
> --
> 2.32.0.windows.1
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Hi Greg,
One minor comment, could we update the subject to reflect what have done in this patch for PCD module before submitting the patch?
With that addressed Reviewed-by: Dandan Bi <dandan.bi@intel.com>
Thanks,
Dandan
> -----Original Message-----
> From: Yeh, GregX <gregx.yeh@intel.com>
> Sent: Monday, August 9, 2021 10:28 AM
> To: devel@edk2.groups.io
> Cc: Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>;
> Bi, Dandan <dandan.bi@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>
> Subject: [PATCH] MdeModulePkg PCD: FSP NotifyPhase APIs caused 100ms
> delay
>
> https://bugzilla.tianocore.org/show_bug.cgi?id=3525
>
> After PciSegmentLib using Dynamic PCD for Pcie base address such long delay
> found in FSP. The root cause is some of the PCD service PPIs not shadowed
> to memory and flash cache may have been disabled in NotifyPhase stage.
> Solution is to shadow all PCD service PPIs to memory.
>
> Signed-off-by: GregX Yeh <gregx.yeh@intel.com>
> Cc: Jian J Wang <jian.j.wang@intel.com>
> Cc: Hao A Wu <hao.a.wu@intel.com>
> Cc: Dandan Bi <dandan.bi@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> ---
> MdeModulePkg/Universal/PCD/Pei/Pcd.c | 71
> +++++++++++++++++++++++++++-
> 1 file changed, 70 insertions(+), 1 deletion(-)
>
> diff --git a/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> b/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> index 9c6346924f..f31e0be35f 100644
> --- a/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> +++ b/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> @@ -1,7 +1,7 @@
> /** @file All Pcd Ppi services are implemented here. -Copyright (c) 2006 -
> 2018, Intel Corporation. All rights reserved.<BR>+Copyright (c) 2006 - 2021,
> Intel Corporation. All rights reserved.<BR> (C) Copyright 2016 Hewlett
> Packard Enterprise Development LP<BR> SPDX-License-Identifier: BSD-2-
> Clause-Patent @@ -339,6 +339,75 @@ PcdPeimInit (
> { EFI_STATUS Status; + Status = PeiServicesRegisterForShadow
> (FileHandle);+ if (Status == EFI_ALREADY_STARTED) {+ //+ // This is now
> starting in memory, the second time starting.+ //+
> EFI_PEI_PPI_DESCRIPTOR *OldPpiList;+ EFI_PEI_PPI_DESCRIPTOR
> *OldPpiList2;+ VOID *Ppi;+ VOID *Ppi2;++ OldPpiList = NULL;+ Status =
> PeiServicesLocatePpi (+ &gPcdPpiGuid,+ 0,+
> &OldPpiList,+ &Ppi+ );+ ASSERT_EFI_ERROR (Status);++ if
> (OldPpiList != NULL) {+ Status = PeiServicesReInstallPpi (OldPpiList,
> &mPpiList[0]);+ ASSERT_EFI_ERROR (Status);+ }++ OldPpiList2 = NULL;+
> Status = PeiServicesLocatePpi (+ &gGetPcdInfoPpiGuid,+ 0,+
> &OldPpiList2,+ &Ppi2+ );+ ASSERT_EFI_ERROR (Status);++ if
> (OldPpiList2 != NULL) {+ Status = PeiServicesReInstallPpi (OldPpiList2,
> &mPpiList2[0]);+ ASSERT_EFI_ERROR (Status);+ }++ OldPpiList = NULL;+
> Status = PeiServicesLocatePpi (+ &gEfiPeiPcdPpiGuid,+ 0,+
> &OldPpiList,+ &Ppi+ );+ ASSERT_EFI_ERROR (Status);++ if
> (OldPpiList != NULL) {+ Status = PeiServicesReInstallPpi (OldPpiList,
> &mPpiList[1]);+ ASSERT_EFI_ERROR (Status);+ }++ OldPpiList2 = NULL;+
> Status = PeiServicesLocatePpi (+ &gEfiGetPcdInfoPpiGuid,+ 0,+
> &OldPpiList2,+ &Ppi2+ );+ ASSERT_EFI_ERROR (Status);++ if
> (OldPpiList2 != NULL) {+ Status = PeiServicesReInstallPpi (OldPpiList2,
> &mPpiList2[1]);+ ASSERT_EFI_ERROR (Status);+ }++ return Status;+ }+
> BuildPcdDatabase (FileHandle); //--
> 2.32.0.windows.1
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Hi Dandan,
So I need create new patch file with new subject then send-email again?
Thanks,
Greg
-----Original Message-----
From: Bi, Dandan <dandan.bi@intel.com>
Sent: Thursday, August 12, 2021 11:47 AM
To: Yeh, GregX <gregx.yeh@intel.com>; devel@edk2.groups.io
Cc: Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>
Subject: RE: [PATCH] MdeModulePkg PCD: FSP NotifyPhase APIs caused 100ms delay
Hi Greg,
One minor comment, could we update the subject to reflect what have done in this patch for PCD module before submitting the patch?
With that addressed Reviewed-by: Dandan Bi <dandan.bi@intel.com>
Thanks,
Dandan
> -----Original Message-----
> From: Yeh, GregX <gregx.yeh@intel.com>
> Sent: Monday, August 9, 2021 10:28 AM
> To: devel@edk2.groups.io
> Cc: Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A
> <hao.a.wu@intel.com>; Bi, Dandan <dandan.bi@intel.com>; Liming Gao
> <gaoliming@byosoft.com.cn>
> Subject: [PATCH] MdeModulePkg PCD: FSP NotifyPhase APIs caused 100ms
> delay
>
> https://bugzilla.tianocore.org/show_bug.cgi?id=3525
>
> After PciSegmentLib using Dynamic PCD for Pcie base address such long
> delay found in FSP. The root cause is some of the PCD service PPIs not
> shadowed to memory and flash cache may have been disabled in NotifyPhase stage.
> Solution is to shadow all PCD service PPIs to memory.
>
> Signed-off-by: GregX Yeh <gregx.yeh@intel.com>
> Cc: Jian J Wang <jian.j.wang@intel.com>
> Cc: Hao A Wu <hao.a.wu@intel.com>
> Cc: Dandan Bi <dandan.bi@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> ---
> MdeModulePkg/Universal/PCD/Pei/Pcd.c | 71
> +++++++++++++++++++++++++++-
> 1 file changed, 70 insertions(+), 1 deletion(-)
>
> diff --git a/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> b/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> index 9c6346924f..f31e0be35f 100644
> --- a/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> +++ b/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> @@ -1,7 +1,7 @@
> /** @file All Pcd Ppi services are implemented here. -Copyright (c) 2006 -
> 2018, Intel Corporation. All rights reserved.<BR>+Copyright (c) 2006 -
> 2021, Intel Corporation. All rights reserved.<BR> (C) Copyright 2016
> Hewlett Packard Enterprise Development LP<BR> SPDX-License-Identifier:
> BSD-2- Clause-Patent @@ -339,6 +339,75 @@ PcdPeimInit (
> { EFI_STATUS Status; + Status = PeiServicesRegisterForShadow
> (FileHandle);+ if (Status == EFI_ALREADY_STARTED) {+ //+ // This is now
> starting in memory, the second time starting.+ //+
> EFI_PEI_PPI_DESCRIPTOR *OldPpiList;+ EFI_PEI_PPI_DESCRIPTOR
> *OldPpiList2;+ VOID *Ppi;+ VOID *Ppi2;++ OldPpiList = NULL;+ Status =
> PeiServicesLocatePpi (+ &gPcdPpiGuid,+ 0,+
> &OldPpiList,+ &Ppi+ );+ ASSERT_EFI_ERROR (Status);++ if
> (OldPpiList != NULL) {+ Status = PeiServicesReInstallPpi (OldPpiList,
> &mPpiList[0]);+ ASSERT_EFI_ERROR (Status);+ }++ OldPpiList2 = NULL;+
> Status = PeiServicesLocatePpi (+ &gGetPcdInfoPpiGuid,+ 0,+
> &OldPpiList2,+ &Ppi2+ );+ ASSERT_EFI_ERROR (Status);++ if
> (OldPpiList2 != NULL) {+ Status = PeiServicesReInstallPpi (OldPpiList2,
> &mPpiList2[0]);+ ASSERT_EFI_ERROR (Status);+ }++ OldPpiList = NULL;+
> Status = PeiServicesLocatePpi (+ &gEfiPeiPcdPpiGuid,+ 0,+
> &OldPpiList,+ &Ppi+ );+ ASSERT_EFI_ERROR (Status);++ if
> (OldPpiList != NULL) {+ Status = PeiServicesReInstallPpi (OldPpiList,
> &mPpiList[1]);+ ASSERT_EFI_ERROR (Status);+ }++ OldPpiList2 = NULL;+
> Status = PeiServicesLocatePpi (+ &gEfiGetPcdInfoPpiGuid,+ 0,+
> &OldPpiList2,+ &Ppi2+ );+ ASSERT_EFI_ERROR (Status);++ if
> (OldPpiList2 != NULL) {+ Status = PeiServicesReInstallPpi (OldPpiList2,
> &mPpiList2[1]);+ ASSERT_EFI_ERROR (Status);+ }++ return Status;+ }+
> BuildPcdDatabase (FileHandle); //--
> 2.32.0.windows.1
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You may send a new one with R-B, then can submit the new updated one.
Thanks,
Dandan
> -----Original Message-----
> From: Yeh, GregX <gregx.yeh@intel.com>
> Sent: Thursday, August 12, 2021 3:06 PM
> To: Bi, Dandan <dandan.bi@intel.com>; devel@edk2.groups.io
> Cc: Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>;
> Liming Gao <gaoliming@byosoft.com.cn>
> Subject: RE: [PATCH] MdeModulePkg PCD: FSP NotifyPhase APIs caused
> 100ms delay
>
> Hi Dandan,
>
> So I need create new patch file with new subject then send-email again?
>
> Thanks,
> Greg
>
> -----Original Message-----
> From: Bi, Dandan <dandan.bi@intel.com>
> Sent: Thursday, August 12, 2021 11:47 AM
> To: Yeh, GregX <gregx.yeh@intel.com>; devel@edk2.groups.io
> Cc: Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>;
> Liming Gao <gaoliming@byosoft.com.cn>
> Subject: RE: [PATCH] MdeModulePkg PCD: FSP NotifyPhase APIs caused
> 100ms delay
>
> Hi Greg,
>
> One minor comment, could we update the subject to reflect what have done
> in this patch for PCD module before submitting the patch?
> With that addressed Reviewed-by: Dandan Bi <dandan.bi@intel.com>
>
>
>
> Thanks,
> Dandan
>
> > -----Original Message-----
> > From: Yeh, GregX <gregx.yeh@intel.com>
> > Sent: Monday, August 9, 2021 10:28 AM
> > To: devel@edk2.groups.io
> > Cc: Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A
> > <hao.a.wu@intel.com>; Bi, Dandan <dandan.bi@intel.com>; Liming Gao
> > <gaoliming@byosoft.com.cn>
> > Subject: [PATCH] MdeModulePkg PCD: FSP NotifyPhase APIs caused 100ms
> > delay
> >
> > https://bugzilla.tianocore.org/show_bug.cgi?id=3525
> >
> > After PciSegmentLib using Dynamic PCD for Pcie base address such long
> > delay found in FSP. The root cause is some of the PCD service PPIs not
> > shadowed to memory and flash cache may have been disabled in
> NotifyPhase stage.
> > Solution is to shadow all PCD service PPIs to memory.
> >
> > Signed-off-by: GregX Yeh <gregx.yeh@intel.com>
> > Cc: Jian J Wang <jian.j.wang@intel.com>
> > Cc: Hao A Wu <hao.a.wu@intel.com>
> > Cc: Dandan Bi <dandan.bi@intel.com>
> > Cc: Liming Gao <gaoliming@byosoft.com.cn>
> > ---
> > MdeModulePkg/Universal/PCD/Pei/Pcd.c | 71
> > +++++++++++++++++++++++++++-
> > 1 file changed, 70 insertions(+), 1 deletion(-)
> >
> > diff --git a/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> > b/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> > index 9c6346924f..f31e0be35f 100644
> > --- a/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> > +++ b/MdeModulePkg/Universal/PCD/Pei/Pcd.c
> > @@ -1,7 +1,7 @@
> > /** @file All Pcd Ppi services are implemented here. -Copyright (c) 2006 -
> > 2018, Intel Corporation. All rights reserved.<BR>+Copyright (c) 2006 -
> > 2021, Intel Corporation. All rights reserved.<BR> (C) Copyright 2016
> > Hewlett Packard Enterprise Development LP<BR> SPDX-License-Identifier:
> > BSD-2- Clause-Patent @@ -339,6 +339,75 @@ PcdPeimInit (
> > { EFI_STATUS Status; + Status = PeiServicesRegisterForShadow
> > (FileHandle);+ if (Status == EFI_ALREADY_STARTED) {+ //+ // This is now
> > starting in memory, the second time starting.+ //+
> > EFI_PEI_PPI_DESCRIPTOR *OldPpiList;+ EFI_PEI_PPI_DESCRIPTOR
> > *OldPpiList2;+ VOID *Ppi;+ VOID *Ppi2;++ OldPpiList = NULL;+ Status
> =
> > PeiServicesLocatePpi (+ &gPcdPpiGuid,+ 0,+
> > &OldPpiList,+ &Ppi+ );+ ASSERT_EFI_ERROR (Status);++ if
> > (OldPpiList != NULL) {+ Status = PeiServicesReInstallPpi (OldPpiList,
> > &mPpiList[0]);+ ASSERT_EFI_ERROR (Status);+ }++ OldPpiList2 =
> NULL;+
> > Status = PeiServicesLocatePpi (+ &gGetPcdInfoPpiGuid,+ 0,+
> > &OldPpiList2,+ &Ppi2+ );+ ASSERT_EFI_ERROR (Status);++
> if
> > (OldPpiList2 != NULL) {+ Status = PeiServicesReInstallPpi (OldPpiList2,
> > &mPpiList2[0]);+ ASSERT_EFI_ERROR (Status);+ }++ OldPpiList =
> NULL;+
> > Status = PeiServicesLocatePpi (+ &gEfiPeiPcdPpiGuid,+ 0,+
> > &OldPpiList,+ &Ppi+ );+ ASSERT_EFI_ERROR (Status);++ if
> > (OldPpiList != NULL) {+ Status = PeiServicesReInstallPpi (OldPpiList,
> > &mPpiList[1]);+ ASSERT_EFI_ERROR (Status);+ }++ OldPpiList2 =
> NULL;+
> > Status = PeiServicesLocatePpi (+ &gEfiGetPcdInfoPpiGuid,+
> 0,+
> > &OldPpiList2,+ &Ppi2+ );+ ASSERT_EFI_ERROR (Status);++
> if
> > (OldPpiList2 != NULL) {+ Status = PeiServicesReInstallPpi (OldPpiList2,
> > &mPpiList2[1]);+ ASSERT_EFI_ERROR (Status);+ }++ return Status;+ }+
> > BuildPcdDatabase (FileHandle); //--
> > 2.32.0.windows.1
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