Reviewed-by: Chasel Chiu <chasel.c...@intel.com>
> -----Original Message-----
> From: Desimone, Nathaniel L <nathaniel.l.desim...@intel.com>
> Sent: Thursday, November 14, 2019 2:07 PM
> To: devel@edk2.groups.io
> Cc: Kubacki, Michael A <michael.a.kuba...@intel.com>; Chiu, Chasel
> <chasel.c...@intel.com>; Gao, Liming <liming....@intel.com>
> Subject: [edk2-platforms] [PATCH V1 13/13] MinPlatformPkg: Remove
> BoardInitLib dependency from PlatformSecLib
>
> SecFspWrapperPlatformSecLib contains the implementation of
> SecPlatformDisableTemporaryMemory(), which SecMain in UefiCpuPkg will
> call as part of its implementation of EFI_PEI_TEMPORARY_RAM_DONE_PPI.
> For platforms that use FSP, the implementation of
> SecPlatformDisableTemporaryMemory() can be made generic since the
> chipset specifics will be contained in FspTempRamExit().
>
> The Minimum Platform Specification provides the BoardPkg two interface
> hook points, BoardInitBeforeTempRamExit() and
> BoardInitAfterTempRamExit() which must be called during
> SecPlatformDisableTemporaryMemory(). Due to
> EFI_PEI_TEMPORARY_RAM_DONE_PPI being a special case of a PPI that is
> implemented in SEC, these two functions are the only ones in BoardInitLib
> that need to be called by SEC.
>
> Linking BoardInitLib with SEC places many restrictions on the
> implementation of that library. The features available to SEC phase code are
> very minimal. Since this code runs during PEI phase, these restrictions are
> not actually required.
>
> Instead of directly linking with BoardInitLib,
> SecPlatformDisableTemporaryMemory() shall call BoardInitLib indirectly
> through a PPI (PLATFORM_INIT_TEMP_RAM_EXIT_PPI.) This PPI is produced
> by PlatformInitPreMem, which implements the other BoardInitLib calls
> already, so this change should also slightly reduce the size of the final
> binary
> image since less PE/COFF images will need to link with BoardInitLib.
>
> Cc: Michael Kubacki <michael.a.kuba...@intel.com>
> Cc: Chasel Chiu <chasel.c...@intel.com>
> Cc: Liming Gao <liming....@intel.com>
> Signed-off-by: Nate DeSimone <nathaniel.l.desim...@intel.com>
> ---
> .../SecFspWrapperPlatformSecLib.inf | 1 +
> .../SecTempRamDone.c | 36 +++++++--
> .../Include/Ppi/PlatformInitTempRamExitPpi.h | 55 ++++++++++++++
> .../Intel/MinPlatformPkg/MinPlatformPkg.dec | 2 +
> .../PlatformInitPei/PlatformInitPreMem.c | 76 ++++++++++++++++++-
> .../PlatformInitPei/PlatformInitPreMem.inf | 1 +
> 6 files changed, 159 insertions(+), 12 deletions(-) create mode 100644
> Platform/Intel/MinPlatformPkg/Include/Ppi/PlatformInitTempRamExitPpi.h
>
> diff --git
> a/Platform/Intel/MinPlatformPkg/FspWrapper/Library/SecFspWrapperPlatfor
> mSecLib/SecFspWrapperPlatformSecLib.inf
> b/Platform/Intel/MinPlatformPkg/FspWrapper/Library/SecFspWrapperPlatfor
> mSecLib/SecFspWrapperPlatformSecLib.inf
> index 02c720c73d..3465f50126 100644
> ---
> a/Platform/Intel/MinPlatformPkg/FspWrapper/Library/SecFspWrapperPlatfor
> mSecLib/SecFspWrapperPlatformSecLib.inf
> +++
> b/Platform/Intel/MinPlatformPkg/FspWrapper/Library/SecFspWrapperPlat
> +++ formSecLib/SecFspWrapperPlatformSecLib.inf
> @@ -80,6 +80,7 @@
> gTopOfTemporaryRamPpiGuid ## PRODUCES
> gEfiPeiFirmwareVolumeInfoPpiGuid ## PRODUCES
> gFspTempRamExitPpiGuid ## CONSUMES+
> gPlatformInitTempRamExitPpiGuid ## CONSUMES [Pcd]
> gUefiCpuPkgTokenSpaceGuid.PcdPeiTemporaryRamStackSize
> ## CONSUMESdiff --git
> a/Platform/Intel/MinPlatformPkg/FspWrapper/Library/SecFspWrapperPlatfor
> mSecLib/SecTempRamDone.c
> b/Platform/Intel/MinPlatformPkg/FspWrapper/Library/SecFspWrapperPlatfor
> mSecLib/SecTempRamDone.c
> index 922e4ec204..b22cf57d6c 100644
> ---
> a/Platform/Intel/MinPlatformPkg/FspWrapper/Library/SecFspWrapperPlatfor
> mSecLib/SecTempRamDone.c
> +++
> b/Platform/Intel/MinPlatformPkg/FspWrapper/Library/SecFspWrapperPlat
> +++ formSecLib/SecTempRamDone.c
> @@ -10,6 +10,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
> #include <Ppi/TemporaryRamDone.h> #include
> <Ppi/TempRamExitPpi.h>+#include <Ppi/PlatformInitTempRamExitPpi.h>
> #include <Library/BaseMemoryLib.h> #include <Library/DebugLib.h>@@
> -17,7 +18,6 @@ SPDX-License-Identifier: BSD-2-Clause-Patent #include
> <Library/DebugAgentLib.h> #include <Library/FspWrapperPlatformLib.h>
> #include <Library/FspWrapperApiLib.h>-#include <Library/BoardInitLib.h>
> #include <Library/PeiServicesTablePointerLib.h> /**@@ -29,14 +29,35 @@
> SecPlatformDisableTemporaryMemory (
> VOID ) {- EFI_STATUS Status;- VOID
> *TempRamExitParam;- CONST EFI_PEI_SERVICES **PeiServices;-
> FSP_TEMP_RAM_EXIT_PPI *TempRamExitPpi;+ EFI_STATUS
> Status;+ VOID *TempRamExitParam;+
> CONST EFI_PEI_SERVICES **PeiServices;+
> FSP_TEMP_RAM_EXIT_PPI *TempRamExitPpi;+
> PLATFORM_INIT_TEMP_RAM_EXIT_PPI *PlatformInitTempRamExitPpi;
> DEBUG ((DEBUG_INFO, "SecPlatformDisableTemporaryMemory enter\n"));+
> PeiServices = GetPeiServicesTablePointer ();+ ASSERT (PeiServices != NULL);+
> if (PeiServices == NULL) {+ return;+ }+ ASSERT ((*PeiServices) !=
> NULL);+ if ((*PeiServices) == NULL) {+ return;+ }+ Status =
> (*PeiServices)->LocatePpi (+ PeiServices,+
> &gPlatformInitTempRamExitPpiGuid,+ 0,+
> NULL,+ (VOID **)
> &PlatformInitTempRamExitPpi+ );+
> ASSERT_EFI_ERROR (Status);+ if (EFI_ERROR (Status)) {+ return;+ } -
> Status = BoardInitBeforeTempRamExit ();+ Status =
> PlatformInitTempRamExitPpi->PlatformInitBeforeTempRamExit ();
> ASSERT_EFI_ERROR (Status); if (PcdGet8 (PcdFspModeSelection) == 1)
> {@@ -51,7 +72,6 @@ SecPlatformDisableTemporaryMemory (
> // // FSP Dispatch mode //- PeiServices =
> GetPeiServicesTablePointer (); Status = (*PeiServices)->LocatePpi
> ( PeiServices,
> &gFspTempRamExitPpiGuid,@@ -66,7 +86,7 @@
> SecPlatformDisableTemporaryMemory (
> TempRamExitPpi->TempRamExit (NULL); } - Status =
> BoardInitAfterTempRamExit ();+ Status =
> PlatformInitTempRamExitPpi->PlatformInitAfterTempRamExit ();
> ASSERT_EFI_ERROR (Status); return ;diff --git
> a/Platform/Intel/MinPlatformPkg/Include/Ppi/PlatformInitTempRamExitPpi.h
> b/Platform/Intel/MinPlatformPkg/Include/Ppi/PlatformInitTempRamExitPpi.h
> new file mode 100644
> index 0000000000..590647738c
> --- /dev/null
> +++
> b/Platform/Intel/MinPlatformPkg/Include/Ppi/PlatformInitTempRamExitP
> +++ pi.h
> @@ -0,0 +1,55 @@
> +/** @file+ This file defines the PPI for notifying PlatformInitPreMem+ of
> temporary memory being disabled.++Copyright (c) 2019, Intel Corporation.
> All rights reserved.<BR>+SPDX-License-Identifier:
> BSD-2-Clause-Patent++**/++#ifndef
> _PLATFORM_INIT_TEMP_RAM_EXIT_PPI_H_+#define
> _PLATFORM_INIT_TEMP_RAM_EXIT_PPI_H_++#include <PiPei.h>++//+//
> Forward declaration for the
> PLATFORM_INIT_TEMP_RAM_EXIT_PPI.+//+typedef struct
> _PLATFORM_INIT_TEMP_RAM_EXIT_PPI
> PLATFORM_INIT_TEMP_RAM_EXIT_PPI;++/**+ A hook for platform-specific
> initialization prior to disabling temporary RAM.++ @retval EFI_SUCCESS
> The platform initialization was successful.+ @retval EFI_NOT_READY The
> platform has not been detected yet.+**/+typedef+EFI_STATUS+(EFIAPI
> *PLATFORM_INIT_BEFORE_TEMP_RAM_EXIT) (+ VOID+ );++/**+ A hook
> for platform-specific initialization after disabling temporary RAM.++
> @retval EFI_SUCCESS The platform initialization was successful.+
> @retval EFI_NOT_READY The platform has not been detected
> yet.+**/+typedef+EFI_STATUS+(EFIAPI
> *PLATFORM_INIT_AFTER_TEMP_RAM_EXIT) (+ VOID+ );++///+/// This PPI
> provides functions for notifying PlatformInitPreMem+/// of temporary
> memory being disabled.+///+struct _PLATFORM_INIT_TEMP_RAM_EXIT_PPI
> {+ PLATFORM_INIT_BEFORE_TEMP_RAM_EXIT
> PlatformInitBeforeTempRamExit;+
> PLATFORM_INIT_AFTER_TEMP_RAM_EXIT
> PlatformInitAfterTempRamExit;+};++extern EFI_GUID
> gPlatformInitTempRamExitPpiGuid;++#endif //
> _PLATFORM_INIT_TEMP_RAM_EXIT_PPI_H_diff --git
> a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
> b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
> index c6b5881646..5dfa4d420e 100644
> --- a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
> +++ b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
> @@ -28,6 +28,8 @@
> gPeiBaseMemoryTestPpiGuid = {0xb6ec423c, 0x21d2, 0x490d,
> {0x85, 0xc6, 0xdd, 0x58, 0x64, 0xea, 0xa6, 0x74}}
> gPeiPlatformMemorySizePpiGuid = {0x9a7ef41e, 0xc140, 0x4bd1, {0xb8,
> 0x84, 0x1e, 0x11, 0x24, 0x0b, 0x4c, 0xe6}} +
> gPlatformInitTempRamExitPpiGuid = {0xbae23646, 0xbd60, 0x4f8b, {0xb3,
> 0xf9, 0xf3, 0x91, 0xee, 0x7e, 0xe6, 0xc8}}+ [Guids]
> gMinPlatformPkgTokenSpaceGuid = {0x69d13bf0, 0xaf91, 0x4d96, {0xaa,
> 0x9f, 0x21, 0x84, 0xc5, 0xce, 0x3b, 0xc0}} diff --git
> a/Platform/Intel/MinPlatformPkg/PlatformInit/PlatformInitPei/PlatformInitPr
> eMem.c
> b/Platform/Intel/MinPlatformPkg/PlatformInit/PlatformInitPei/PlatformInitPr
> eMem.c
> index c579ff008e..efdeb6a91c 100644
> ---
> a/Platform/Intel/MinPlatformPkg/PlatformInit/PlatformInitPei/PlatformInitPr
> eMem.c
> +++ b/Platform/Intel/MinPlatformPkg/PlatformInit/PlatformInitPei/Platfor
> +++ mInitPreMem.c
> @@ -29,6 +29,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent #include
> <Guid/MemoryTypeInformation.h> #include <Ppi/PlatformMemorySize.h>
> #include <Ppi/BaseMemoryTest.h>+#include
> <Ppi/PlatformInitTempRamExitPpi.h> EFI_STATUS EFIAPI@@ -72,7 +73,31
> @@ BaseMemoryTest (
> OUT EFI_PHYSICAL_ADDRESS *ErrorAddress ); -static
> EFI_PEI_NOTIFY_DESCRIPTOR mMemDiscoveredNotifyList = {+/**+ A hook
> for platform-specific initialization prior to disabling temporary RAM.++
> @retval EFI_SUCCESS The platform initialization was successful.+
> @retval EFI_NOT_READY The platform has not been detected
> yet.+**/+EFI_STATUS+EFIAPI+PlatformInitBeforeTempRamExit (+
> VOID+ );++/**+ A hook for platform-specific initialization after disabling
> temporary RAM.++ @retval EFI_SUCCESS The platform initialization was
> successful.+ @retval EFI_NOT_READY The platform has not been detected
> yet.+**/+EFI_STATUS+EFIAPI+PlatformInitAfterTempRamExit (+
> VOID+ );++GLOBAL_REMOVE_IF_UNREFERENCED
> EFI_PEI_NOTIFY_DESCRIPTOR mMemDiscoveredNotifyList =
> { (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK |
> EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
> &gEfiPeiMemoryDiscoveredPpiGuid, (EFI_PEIM_NOTIFY_ENTRY_POINT)
> MemoryDiscoveredPpiNotifyCallback@@ -90,11 +115,11 @@
> GLOBAL_REMOVE_IF_UNREFERENCED EFI_PEI_PPI_DESCRIPTOR
> mPpiBootMode = {
> NULL }; -static PEI_BASE_MEMORY_TEST_PPI
> mPeiBaseMemoryTestPpi =
> { BaseMemoryTest };+GLOBAL_REMOVE_IF_UNREFERENCED
> PEI_BASE_MEMORY_TEST_PPI mPeiBaseMemoryTestPpi =
> { BaseMemoryTest }; -static PEI_PLATFORM_MEMORY_SIZE_PPI
> mMemoryMemorySizePpi =
> { GetPlatformMemorySize };+GLOBAL_REMOVE_IF_UNREFERENCED
> PEI_PLATFORM_MEMORY_SIZE_PPI mMemoryMemorySizePpi =
> { GetPlatformMemorySize }; -static EFI_PEI_PPI_DESCRIPTOR
> mMemPpiList[] = {+GLOBAL_REMOVE_IF_UNREFERENCED
> EFI_PEI_PPI_DESCRIPTOR mMemPpiList[] =
> { { EFI_PEI_PPI_DESCRIPTOR_PPI,
> &gPeiBaseMemoryTestPpiGuid,@@ -107,6 +132,17 @@ static
> EFI_PEI_PPI_DESCRIPTOR mMemPpiList[] = {
> }, }; +GLOBAL_REMOVE_IF_UNREFERENCED
> PLATFORM_INIT_TEMP_RAM_EXIT_PPI mPlatformInitTempRamExitPpi = {+
> PlatformInitBeforeTempRamExit,+
> PlatformInitAfterTempRamExit+};++GLOBAL_REMOVE_IF_UNREFERENCED
> EFI_PEI_PPI_DESCRIPTOR mPlatformInitTempRamExitPpiDesc = {+
> (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),+
> &gPlatformInitTempRamExitPpiGuid,+ &mPlatformInitTempRamExitPpi+};+
> /// /// Memory Reserved should be between 125% to 150% of the Current
> required memory /// otherwise BdsMisc.c would do a reset to make it 125%
> to avoid s4 resume issues.@@ -391,6 +427,35 @@
> MemoryDiscoveredPpiNotifyCallback (
> return Status; } +/**+ A hook for platform-specific initialization prior
> to
> disabling temporary RAM.++ @retval EFI_SUCCESS The platform
> initialization was successful.+ @retval EFI_NOT_READY The platform has
> not been detected
> yet.+**/+EFI_STATUS+EFIAPI+PlatformInitBeforeTempRamExit (+
> VOID+ )+{+ return BoardInitBeforeTempRamExit ();+}++/**+ A hook for
> platform-specific initialization after disabling temporary RAM.++ @retval
> EFI_SUCCESS The platform initialization was successful.+ @retval
> EFI_NOT_READY The platform has not been detected
> yet.+**/+EFI_STATUS+EFIAPI+PlatformInitAfterTempRamExit (+ VOID+ )+{+
> return BoardInitAfterTempRamExit ();+} /** This function handles
> PlatformInit task after PeiReadOnlyVariable2 PPI produced@@ -446,6 +511,9
> @@ PlatformInitPreMem (
> Status = BoardInitBeforeMemoryInit (); ASSERT_EFI_ERROR (Status); +
> Status = PeiServicesInstallPpi (&mPlatformInitTempRamExitPpiDesc);+
> ASSERT_EFI_ERROR (Status);+ return Status; } diff --git
> a/Platform/Intel/MinPlatformPkg/PlatformInit/PlatformInitPei/PlatformInitPr
> eMem.inf
> b/Platform/Intel/MinPlatformPkg/PlatformInit/PlatformInitPei/PlatformInitPr
> eMem.inf
> index af5dbe8772..7ee18eb6d5 100644
> ---
> a/Platform/Intel/MinPlatformPkg/PlatformInit/PlatformInitPei/PlatformInitPr
> eMem.inf
> +++ b/Platform/Intel/MinPlatformPkg/PlatformInit/PlatformInitPei/Platfor
> +++ mInitPreMem.inf
> @@ -53,6 +53,7 @@
> gEfiPeiMemoryDiscoveredPpiGuid gEfiPeiMasterBootModePpiGuid
> ## PRODUCES gEfiPeiBootInRecoveryModePpiGuid ##
> PRODUCES+ gPlatformInitTempRamExitPpiGuid ##
> PRODUCES gEfiPeiReadOnlyVariable2PpiGuid
> gPeiBaseMemoryTestPpiGuid gPeiPlatformMemorySizePpiGuid--
> 2.23.0.windows.1
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