From: "Wu, Hao A" <hao.a.wu@intel.com>
To: "Zeng, Star" <star.zeng@intel.com>,
"edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Subject: Re: [PATCH V2 03/15] MdeModulePkg Variable: Not get NV PCD in VariableWriteServiceInitialize
Date: Tue, 15 Jan 2019 05:48:06 +0000 [thread overview]
Message-ID: <B80AF82E9BFB8E4FBD8C89DA810C6A093C87E54F@SHSMSX101.ccr.corp.intel.com> (raw)
In-Reply-To: <1547479196-40248-4-git-send-email-star.zeng@intel.com>
Hi Star,
One minor comment below.
> -----Original Message-----
> From: Zeng, Star
> Sent: Monday, January 14, 2019 11:20 PM
> To: edk2-devel@lists.01.org
> Cc: Zeng, Star; Wang, Jian J; Wu, Hao A
> Subject: [PATCH V2 03/15] MdeModulePkg Variable: Not get NV PCD in
> VariableWriteServiceInitialize
>
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1323
> Merge EmuVariable and Real variable driver.
>
> Add macro NV_STORAGE_VARIABLE_BASE.
> Not get NV PCD in VariableWriteServiceInitialize, but in
> FtwNotificationEvent/SmmFtwNotificationEvent, then
> VariableWriteServiceInitialize could be not aware the NV
> storage is real or emulated.
>
> This patch prepares for adding emulated variable NV mode
> support in VariableRuntimeDxe.
>
> Cc: Jian J Wang <jian.j.wang@intel.com>
> Cc: Hao Wu <hao.a.wu@intel.com>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Star Zeng <star.zeng@intel.com>
> ---
> .../Universal/Variable/RuntimeDxe/Variable.c | 20 ++------------------
> .../Universal/Variable/RuntimeDxe/Variable.h | 9 +++++++--
> .../Universal/Variable/RuntimeDxe/VariableDxe.c | 12 ++++++++----
> .../Universal/Variable/RuntimeDxe/VariableSmm.c | 16 +++++++++++----
> -
> 4 files changed, 28 insertions(+), 29 deletions(-)
>
> diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
> b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
> index 0b675c8f36df..424f92a53757 100644
> --- a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
> +++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
> @@ -3770,10 +3770,7 @@ InitRealNonVolatileVariableStore (
> return EFI_OUT_OF_RESOURCES;
> }
>
> - NvStorageBase = (EFI_PHYSICAL_ADDRESS) PcdGet64
> (PcdFlashNvStorageVariableBase64);
> - if (NvStorageBase == 0) {
> - NvStorageBase = (EFI_PHYSICAL_ADDRESS) PcdGet32
> (PcdFlashNvStorageVariableBase);
> - }
> + NvStorageBase = NV_STORAGE_VARIABLE_BASE;
> ASSERT (NvStorageBase != 0);
>
> //
> @@ -4027,7 +4024,7 @@ FlushHobVariableToFlash (
> }
>
> /**
> - Initializes variable write service after FTW was ready.
> + Initializes variable write service.
>
> @retval EFI_SUCCESS Function successfully executed.
> @retval Others Fail to initialize the variable service.
> @@ -4041,23 +4038,10 @@ VariableWriteServiceInitialize (
> EFI_STATUS Status;
> UINTN Index;
> UINT8 Data;
> - EFI_PHYSICAL_ADDRESS VariableStoreBase;
> - EFI_PHYSICAL_ADDRESS NvStorageBase;
> VARIABLE_ENTRY_PROPERTY *VariableEntry;
>
> AcquireLockOnlyAtBootTime(&mVariableModuleGlobal-
> >VariableGlobal.VariableServicesLock);
>
> - NvStorageBase = (EFI_PHYSICAL_ADDRESS) PcdGet64
> (PcdFlashNvStorageVariableBase64);
> - if (NvStorageBase == 0) {
> - NvStorageBase = (EFI_PHYSICAL_ADDRESS) PcdGet32
> (PcdFlashNvStorageVariableBase);
> - }
> - VariableStoreBase = NvStorageBase + (mNvFvHeaderCache-
> >HeaderLength);
> -
> - //
> - // Let NonVolatileVariableBase point to flash variable store base directly
> after FTW ready.
> - //
> - mVariableModuleGlobal->VariableGlobal.NonVolatileVariableBase =
> VariableStoreBase;
> -
> //
> // Check if the free area is really free.
> //
> diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
> b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
> index 938eb5de61fa..566e7268d187 100644
> --- a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
> +++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
> @@ -2,7 +2,7 @@
> The internal header file includes the common header files, defines
> internal structure and functions used by Variable modules.
>
> -Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
> +Copyright (c) 2006 - 2019, 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
> @@ -46,6 +46,11 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY
> KIND, EITHER EXPRESS OR IMPLIED.
>
> #include "PrivilegePolymorphic.h"
>
> +#define NV_STORAGE_VARIABLE_BASE (EFI_PHYSICAL_ADDRESS) \
> + (PcdGet64 (PcdFlashNvStorageVariableBase64) != 0 ? \
> + PcdGet64 (PcdFlashNvStorageVariableBase64) : \
> + PcdGet32 (PcdFlashNvStorageVariableBase))
> +
> #define EFI_VARIABLE_ATTRIBUTES_MASK (EFI_VARIABLE_NON_VOLATILE
> | \
> EFI_VARIABLE_BOOTSERVICE_ACCESS | \
> EFI_VARIABLE_RUNTIME_ACCESS | \
> @@ -473,7 +478,7 @@ GetMaxVariableSize (
> );
>
> /**
> - Initializes variable write service after FVB was ready.
> + Initializes variable write service.
>
> @retval EFI_SUCCESS Function successfully executed.
> @retval Others Fail to initialize the variable service.
> diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c
> b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c
> index f7185df3a7eb..baba6729c1c2 100644
> --- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c
> +++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c
> @@ -386,13 +386,17 @@ FtwNotificationEvent (
> ASSERT (PcdGet32 (PcdFlashNvStorageVariableSize) <= FtwMaxBlockSize);
> }
>
> + NvStorageVariableBase = NV_STORAGE_VARIABLE_BASE;
> + VariableStoreBase = NvStorageVariableBase + (mNvFvHeaderCache-
> >HeaderLength);
I think you can remove the below duplicate assignment to variable
'VariableStoreBase' within function FtwNotificationEvent():
//
// Mark the variable storage region of the FLASH as RUNTIME.
//
VariableStoreBase = NvStorageVariableBase + mNvFvHeaderCache->HeaderLength;
Best Regards,
Hao Wu
> +
> + //
> + // Let NonVolatileVariableBase point to flash variable store base directly
> after FTW ready.
> + //
> + mVariableModuleGlobal->VariableGlobal.NonVolatileVariableBase =
> VariableStoreBase;
> +
> //
> // Find the proper FVB protocol for variable.
> //
> - NvStorageVariableBase = (EFI_PHYSICAL_ADDRESS) PcdGet64
> (PcdFlashNvStorageVariableBase64);
> - if (NvStorageVariableBase == 0) {
> - NvStorageVariableBase = (EFI_PHYSICAL_ADDRESS) PcdGet32
> (PcdFlashNvStorageVariableBase);
> - }
> Status = GetFvbInfoByAddress (NvStorageVariableBase, NULL,
> &FvbProtocol);
> if (EFI_ERROR (Status)) {
> return ;
> diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c
> b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c
> index 8c53f84ff6e8..018587ed7373 100644
> --- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c
> +++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c
> @@ -14,7 +14,7 @@
> VariableServiceSetVariable(), VariableServiceQueryVariableInfo(),
> ReclaimForOS(),
> SmmVariableGetStatistics() should also do validation based on its own
> knowledge.
>
> -Copyright (c) 2010 - 2016, Intel Corporation. All rights reserved.<BR>
> +Copyright (c) 2010 - 2019, 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
> @@ -37,6 +37,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY
> KIND, EITHER EXPRESS OR IMPLIED.
> #include <Guid/SmmVariableCommon.h>
> #include "Variable.h"
>
> +extern EFI_FIRMWARE_VOLUME_HEADER *mNvFvHeaderCache;
> extern VARIABLE_INFO_ENTRY *gVariableInfo;
> EFI_HANDLE mSmmVariableHandle = NULL;
> EFI_HANDLE mVariableHandle = NULL;
> @@ -867,6 +868,7 @@ SmmFtwNotificationEvent (
> )
> {
> EFI_STATUS Status;
> + EFI_PHYSICAL_ADDRESS VariableStoreBase;
> EFI_SMM_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbProtocol;
> EFI_SMM_FAULT_TOLERANT_WRITE_PROTOCOL *FtwProtocol;
> EFI_PHYSICAL_ADDRESS NvStorageVariableBase;
> @@ -889,13 +891,17 @@ SmmFtwNotificationEvent (
> ASSERT (PcdGet32 (PcdFlashNvStorageVariableSize) <= FtwMaxBlockSize);
> }
>
> + NvStorageVariableBase = NV_STORAGE_VARIABLE_BASE;
> + VariableStoreBase = NvStorageVariableBase + (mNvFvHeaderCache-
> >HeaderLength);
> +
> + //
> + // Let NonVolatileVariableBase point to flash variable store base directly
> after FTW ready.
> + //
> + mVariableModuleGlobal->VariableGlobal.NonVolatileVariableBase =
> VariableStoreBase;
> +
> //
> // Find the proper FVB protocol for variable.
> //
> - NvStorageVariableBase = (EFI_PHYSICAL_ADDRESS) PcdGet64
> (PcdFlashNvStorageVariableBase64);
> - if (NvStorageVariableBase == 0) {
> - NvStorageVariableBase = (EFI_PHYSICAL_ADDRESS) PcdGet32
> (PcdFlashNvStorageVariableBase);
> - }
> Status = GetFvbInfoByAddress (NvStorageVariableBase, NULL,
> &FvbProtocol);
> if (EFI_ERROR (Status)) {
> return EFI_NOT_FOUND;
> --
> 2.7.0.windows.1
next prev parent reply other threads:[~2019-01-15 5:48 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-14 15:19 [PATCH V2 00/15] Merge EmuVariable and Real variable driver Star Zeng
2019-01-14 15:19 ` [PATCH V2 01/15] MdeModulePkg Variable: Add some missing changes for 9b18845 Star Zeng
2019-01-15 6:36 ` Wu, Hao A
2019-01-15 8:06 ` Laszlo Ersek
2019-01-14 15:19 ` [PATCH V2 02/15] MdeModulePkg Variable: Abstract InitRealNonVolatileVariableStore Star Zeng
2019-01-15 6:37 ` Wu, Hao A
2019-01-14 15:19 ` [PATCH V2 03/15] MdeModulePkg Variable: Not get NV PCD in VariableWriteServiceInitialize Star Zeng
2019-01-15 5:48 ` Wu, Hao A [this message]
2019-01-15 5:53 ` Zeng, Star
2019-01-15 6:37 ` Wang, Jian J
2019-01-15 10:13 ` Zeng, Star
2019-01-14 15:19 ` [PATCH V2 04/15] MdeModulePkg Variable: Abstract VariableWriteServiceInitializeDxe/Smm Star Zeng
2019-01-15 6:37 ` Wu, Hao A
2019-01-15 8:05 ` Wang, Jian J
2019-01-14 15:19 ` [PATCH V2 05/15] MdeModulePkg: Add PcdEmuVariableNvModeEnable in dec Star Zeng
2019-01-15 5:05 ` Wang, Jian J
2019-01-15 5:55 ` Zeng, Star
2019-01-15 6:37 ` Wu, Hao A
2019-01-14 15:19 ` [PATCH V2 06/15] MdeModulePkg Variable: Remove CacheOffset in UpdateVariable() Star Zeng
2019-01-15 6:37 ` Wu, Hao A
2019-01-15 8:04 ` Wang, Jian J
2019-01-15 9:58 ` Laszlo Ersek
2019-01-15 10:10 ` Zeng, Star
2019-01-15 8:15 ` Laszlo Ersek
2019-01-14 15:19 ` [PATCH V2 07/15] MdeModulePkg Variable: type case VolatileBase to UINTN directly Star Zeng
2019-01-15 6:37 ` Wu, Hao A
2019-01-15 8:06 ` Wang, Jian J
2019-01-15 8:18 ` Laszlo Ersek
2019-01-14 15:19 ` [PATCH V2 08/15] MdeModulePkg Variable: Add emulated variable NV mode support Star Zeng
2019-01-15 6:01 ` Wang, Jian J
2019-01-15 6:16 ` Zeng, Star
2019-01-15 9:53 ` Laszlo Ersek
2019-01-15 9:33 ` Laszlo Ersek
2019-01-15 9:52 ` Zeng, Star
2019-01-14 15:19 ` [PATCH V2 09/15] MdeModulePkg VariablePei: Don't check BOOT_IN_RECOVERY_MODE Star Zeng
2019-01-14 15:19 ` [PATCH V2 10/15] ArmVirtXen: Use merged variable driver for emulated NV mode Star Zeng
2019-01-15 9:37 ` Laszlo Ersek
2019-01-16 14:26 ` Julien Grall
2019-01-17 1:26 ` Zeng, Star
2019-01-17 18:59 ` Julien Grall
2019-01-21 10:46 ` Zeng, Star
2019-01-21 13:36 ` Julien Grall
2019-01-21 19:40 ` Ard Biesheuvel
2019-01-22 4:30 ` Zeng, Star
2019-01-23 1:41 ` Zeng, Star
2019-01-23 12:15 ` Julien Grall
2019-01-23 14:20 ` Zeng, Star
2019-01-21 21:15 ` Laszlo Ersek
2019-01-21 21:22 ` Ard Biesheuvel
2019-01-21 21:25 ` Ard Biesheuvel
2019-01-14 15:19 ` [PATCH V2 11/15] ArmVirtXen: Link VarCheckUefiLib NULL class library instance Star Zeng
2019-01-15 9:39 ` Laszlo Ersek
2019-01-14 15:19 ` [PATCH V2 12/15] BeagleBoardPkg: Use merged variable driver for emulated NV mode Star Zeng
2019-01-14 22:11 ` Leif Lindholm
2019-01-15 1:32 ` Zeng, Star
2019-01-15 9:48 ` Leif Lindholm
2019-01-14 15:19 ` [PATCH V2 13/15] QuarkMin: " Star Zeng
2019-01-14 15:19 ` [PATCH V2 14/15] CorebootPayloadPkg: " Star Zeng
2019-01-14 15:19 ` [PATCH V2 15/15] MdeModulePkg: Remove EmuVariableRuntimeDxe Star Zeng
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