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2026-06-24MdeModulePkg: PeiCore: Add Memory Bin Support to Post-Mem PEIOliver Smith-Denny4-95/+995
This commit adds opt-in support for post-mem PEI memory bins. See the README for full details. MemoryBin.c is duplicated to PeiCore per request. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2026-05-06MdeModulePkg: Cleanup debug print readabilityBenjamin Doron1-1/+1
All debug prints should end in a newline character. Signed-off-by: Benjamin Doron <benjamin.doron00@gmail.com>
2026-03-19MdeModulePkg/PeiCore: Accept MemoryDiscoveredPpi from SecCoreRay Ni1-0/+10
PeiCore assumes that it runs initially from the temporary memory and switches to physical memory after PS::InstallPeiMemory() reports the physical memory range for PEI. This change enables PeiCore to run initially from the physical memory when MemoryDiscoveredPpi is passed from SEC. Signed-off-by: Ray Ni <ray.ni@intel.com>
2026-02-24MdeModulePkg: Replace include guards with #pragma onceMichael Kubacki3-12/+3
Replace traditional `#ifndef`/`#define`/`#endif` include guards with `#pragma` once. `#pragma once` is a widely supported preprocessor directive that prevents header files from being included multiple times. It is supported by all toolchains used to build edk2: GCC, Clang/LLVM, and MSVC. Compared to macro-based include guards, `#pragma once`: - Eliminates the risk of macro name collisions or copy/paste errors where two headers inadvertently use the same guard macro. - Eliminate inconsistency in the way include guard macros are named (e.g., some files use `__FILE_H__`, others use `FILE_H_`, etc.). - Reduces boilerplate (three lines replaced by one). - Avoids polluting the macro namespace with guard symbols. - Can improve build times as the preprocessor can skip re-opening the file entirely, rather than re-reading it to find the matching `#endif` ("multiple-include optimization"). - Note that some compilers may already optimize traditional include guards, by recognzining the idiomatic pattern. This change is made acknowledging that overall portability of the code will technically be reduced, as `#pragma once` is not part of the C/C++ standards. However, this is considered acceptable given: 1. edk2 already defines a subset of supported compilers in BaseTools/Conf/tools_def.template, all of which have supported `#pragma once` for over two decades. 2. There have been concerns raised to the project about inconsistent include guard naming and potential macro collisions. Approximate compiler support dates: - MSVC: Supported since Visual C++ 4.2 (1996) - GCC: Supported since 3.4 (2004) (http://gnu.ist.utl.pt/software/gcc/gcc-3.4/changes.html) - Clang (LLVM based): Since initial release in 2007 Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
2026-01-30MdeModulePkg/Core: Make PPI services spec complaintKhalid Ali1-3/+15
The documentation of InstallPpi() and NotifyPpi() in both the spec and function comment indicate to return EFI_OUT_OF_RESOURCES if memory allocation fails. However, the implementation of those two services assert if memory allocation fails. This is a mismatch between what the function expected to return and what actually returns. Fix this by returning EFI_OUT_OF_RESOURCES if memory allocation fails, so the code matches the documentation and comply with the spec. It is expected service consumers(callers of these functions) to handle failures appriciately. Signed-off-by: Khalid Ali <khaliidcaliy@gmail.com>
2025-12-03MdeModulePkg: Remove ambiguous negation of narrower typeArd Biesheuvel1-1/+1
Replace UINTN casts with EFI_PHYSICAL_ADDRESS in places where the result is negated, as otherwise, the top bits may remain 0 unexpectedly. VS2022 started warning about this, and thus breaking the IA32 CI build. Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2025-11-22MdeModulePkg: Fix missing NULL tests.Aaron Pop2-8/+15
https://github.com/github/codeql/blob/codeql-cli-2.7.3/cpp/ql/src/Critical/MissingNullTest.qhelp For items which allocate memory, or get a pointer from another structure, it is important to validate that the pointers are not null before they are dereferenced. Signed-off-by: Aaron Pop <aaronpop@microsoft.com>
2025-11-22MdeModulePkg: Fix comparison with wider widths.Aaron Pop2-6/+6
https://codeql.github.com/codeql-query-help/cpp/cpp-comparison-with-wider-type If the narrow type (smaller range) is compared against a wide type (larger range), the narrow value may overflow before reaching the wide value. This can cause unexpected behavior, such as: Infinite loops (loop condition never becomes false). Incorrect logic (comparison results are misleading). Signed-off-by: Aaron Pop <aaronpop@microsoft.com>
2025-09-23MdeModulePkg: Add PcdDelayedDispatchMaxEntriesMichael Kubacki2-4/+11
The current fixed value of 8 for `DELAYED_DISPATCH_MAX_ENTRIES` is not large enough to accommodate platform usage. This change replaces the macro with a PCD that can be configured by platforms. In the case the default PCD value is too small, an error message explaining that the PCD should be updated will be printed followed by an assert. Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
2025-08-25MdeModulePkg/PeiCore: Print GUID of FV and FvFile in debug logRay Ni1-6/+32
When a BIOS implementation splits the PEIMs in multiple firmware volumes and the FVs are reported to PEI Core by different PEIMs at different time, it is hard to conclude the exact FV dispatch order. The change updates the existing PEI dispatch logic to print the GUID of the firmware volume and the FFS file which contains a nested FV. It helps developers to match the FV being dispatched to the FV defined in FDF file. Signed-off-by: Ray Ni <ray.ni@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn>
2025-07-23MdeModulePkg: Unify EfiFileName ParsingOliver Smith-Denny1-2/+2
The various cores all attempt to print the EfiFileName when loading/dispatching drivers, but they are not unified on approach. This commit ensures they are using the same buffer size and the loop parsing variables are unsigned, as we should not have a negative index. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2025-07-23MdeModulePkg: Always Print Driver Load MessagesOliver Smith-Denny1-8/+4
Today, DXE/PEI/SMM Core's image loaders only print driver load messages if debug code is enabled. However, these are some of the most important prints in the codebase: on a given system even if you have nothing else to debug with, you can see the last driver executed. Debug code blocks are used to skip logic that only exists for debug purposes and wastes time on a release build. However, the logic to print a line and determine the filename from the PDB is not extensive and provides critical information, so it is inappropriate to wrap in a debug code section. Platforms can still choose to disable logging at DEBUG_INFO/DEBUG_LOAD and will not see the error messages. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2025-07-08MdeModulePkg: Don't Allocate Page 0Oliver Smith-Denny1-2/+3
Currently DxeIpl attempts to set page 0 to all 0's and to create a memory allocation HOB for it. However, DxeIpl will also unmap the page when mapping page tables and if null detection is not enabled, DxeCore will set the page to 0, regardless of allocation status. Because no consumers are using the memory allocation HOB for page 0, drop it. Instead, ensure that PeiCore and DxeCore do not allow allocating page 0; it should always be reserved for null pointer detection. It also complicates the story for platforms that are attempting to audit the system and ensure that no modules are using page 0. With these memory allocation HOBs in place, it is difficult to tell if it is simply DxeIpl who has allocated the memory or another module. This commit drops the memory allocation HOB publishing and ensures that DxeCore and PeiCore do not allocate page 0. DxeCore already will not allocate page 0 to callers of AllocatePages who call with a type other than AllocateAddress, this just changes so that AllocateAddress cannot allocate at page 0 (which if null detection is enabled will cause a page fault). PeiCore does not have AllocateAddress and so this ensures standard allocations do not receive page 0. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2025-01-29MdeModulePkg: PeiMain: fix warning about uninitialized variableMike Maslenkin1-5/+5
Dispatcher.c:1639:34: error: 'FvMigrationFlags' may be used uninitialized in this function [-Werror=maybe-uninitialized] (((FvMigrationFlags & FLAGS_FV_MIGRATE_BEFORE_PEI_CORE_REENTRY) == 0) || ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors Signed-off-by: Mike Maslenkin <mike.maslenkin@gmail.com>
2025-01-26MdeModulePkg PeiMain: Remove return for PeiCoreBuildHobHandoffInfoTable()Star Zeng2-10/+4
PeiCoreBuildHobHandoffInfoTable() always returns EFI_SUCCESS, and also its return is not consumed at all, so this patch removes return for PeiCoreBuildHobHandoffInfoTable(). Signed-off-by: Star Zeng <star.zeng@intel.com>
2024-10-17MdeModulePkg: Replace right bit shift operator with RShiftU64Jeremy Compostella1-1/+1
Instead of using bit shift operations, it is preferable to use BaseLib bit shift functions to prevent compilers from inserting intrinsics. Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
2024-10-17MdeModulePkg: Fix PeiAllocatePages() corner caseJeremy Compostella1-15/+22
I recently ran into an AllocatePages() hang. It turns out that AllocatePages() does not account for the Memory Allocation HOB when it makes the decision of allocating out of free memory. Here is the scenario: FreeMemoryTop - 0x71C03000 FreeMemoryBottom - 0x71BDBFD8 => We have 159,784 bytes left => ~39.0098 pages left. We attempt to allocate 39 pages. There are enough pages left but allocating those pages requires to allocate a Memory Allocation HOB which needs an extra 48 bytes. But once the pages are allocated, there are only 40 bytes left. In addition to taking into account the Memory Allocation HOB size, this commit reverses the condition to keep it simple. Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
2024-10-17MdeModulePkg: PeiMain: Updated dispatcher for delayed dispatchKun Qin1-1/+4
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4496 This change adds a check for PEI dispatcher to continue dispatching when there are still pending delayed dispatch requests, to be compatible with newly integrated Delayed Dispatcher PPI interface. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Cc: Dandan Bi <dandan.bi@intel.com> Cc: Debkumar De <debkumar.de@intel.com> Cc: Catharine West <catharine.west@intel.com> Co-authored-by: John Schock <joschock@microsoft.com> Signed-off-by: Kun Qin <kuqin12@gmail.com>
2024-10-17MdeModulePkg: PeiMain: Introduce implementation of delayed dispatchKun Qin4-1/+482
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4496 This change adds the implementation that fits the needs and description of PI spec defined Delayed Dispatch PPI in Pei Core. The PPI would allow minimal delay for registered callbacks. As well as allowing other functions to wait for GUIDed delayed dispatch callbacks. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Dandan Bi <dandan.bi@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Cc: Debkumar De <debkumar.de@intel.com> Cc: Catharine West <catharine.west@intel.com> Co-authored-by: Mike Turner <mikeyt@pobox.com> Co-authored-by: Sachin Ganesh <sachinganesh@ami.com> Signed-off-by: Kun Qin <kuqin12@gmail.com>
2024-09-06MdeModulePkg/Core/Pei: Add error handling for Section Lengthragavarshinib1-0/+12
This patch breaks the section processing loop if an invalid section with zero SectionLength is encountered. Signed-off-by: Ragavarshini B <ragavarshinib@ami.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Cc: Dhanaraj V <vdhanaraj@ami.com> Cc: Sachin Ganesh <sachinganesh@ami.com>
2024-07-30MdeModulePkg: Optimize PEI Core Migration AlgorithmAwiral Shrivastava2-8/+45
REF : https://bugzilla.tianocore.org/show_bug.cgi?id=4750 Migrate the FV that doesn't contain the currently executing PEI Core when permanent memory is initialized but PEI Core is still potentially running from faster memory (Tepmorary RAM). This may reduce the time required to migrate FVs to permanent memory. The FV containing PEI Core is migrated after the PEI Core reentry when it is executed from permanent memory. This may or may not improve performance depending on the behavior of temporary RAM and the actual performance changes must be measured with the feature enabled and disabled. This migration algorithm is only used for FVs specified in the gEdkiiMigrationInfoGuid HOB and built with flag FLAGS_FV_MIGRATE_BEFORE_PEI_CORE_REENTRY. Signed-off-by: Awiral Shrivastava <awiral.shrivastava@intel.com>
2024-07-10MdeModulePkg: Remove PeiAllocatePool() AssertKun Qin1-2/+0
Removes an assert if PeiAllocatePool() fails to allocate memory to defer error handling to the caller so the error can be handled gracefully or asserted at that location which is more specific to the call that led to the allocation. Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
2024-06-18MdeModulePkg/Core/Pei: Install MigrateTempRamPpiZhihao Li3-3/+13
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4716 Migrate FSP-T/M binary from temporary RAM to permanent RAM before NEM tear down. Tcg module will use permanent address of FSP-T/M for measurement. In MdeModulePkg, PeiCore installs mMigrateTempRamPpi if PcdMigrateTemporaryRamFirmwareVolumes is True before NEM tear down and after permanent memory ready. Cc: Chasel Chiu <chasel.chiu@intel.com> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Duggapu Chinni B <chinni.b.duggapu@intel.com> Cc: Chen Gang C <gang.c.chen@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Signed-off-by: Zhihao Li <zhihao.li@intel.com>
2024-03-14MdeModulePkg: DxeCore: Correct Runtime Granularity Memory TypeOliver Smith-Denny1-1/+1
Per the UEFI spec 2.10, section 2.3.6 (for the AARCH64 arch, other architectures in section two confirm the same) the memory types that need runtime page allocation granularity are EfiReservedMemoryType, EfiACPIMemoryNVS, EfiRuntimeServicesCode, and EfiRuntimeServicesData. However, legacy code was setting runtime page allocation granularity for EfiACPIReclaimMemory and not EfiReservedMemoryType. This patch fixes that error. Cc: Leif Lindholm <quic_llindhol@quicinc.com> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Sami Mujawar <sami.mujawar@arm.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Signed-off-by: Oliver Smith-Denny <osde@linux.microsoft.com> Suggested-by: Ard Biesheuvel <ardb+tianocore@kernel.org> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2024-03-01MdeModulePkg/Core/Pei: Improve the copy performanceLi, Zhihao1-2/+2
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4697 EvacuateTempRam function will copy the temporary memory context to the rebased pages and the raw pages. Migrations of rebased PEIMs is from cache to memory, while raw PEIMs is from memory to memory. So the migrations of raw PEIMs is slower than rebased PEIMs. Experimental data indicates that changing the source address of raw PEIMs migration will improve performance by 35%. Cc: Liming Gao <gaoliming@byosoft.com.cn> Signed-off-by: Zhihao Li <zhihao.li@intel.com> Message-Id: <20240301071147.519-1-zhihao.li@intel.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn> Reviewed-by: Michael Kubacki <michael.kubacki@microsoft.com>
2023-12-25MdeModulePkg: Support customized FV Migration InformationCheng Sun4-73/+63
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4533 There are use cases which not all FVs need be migrated from TempRam to permanent memory before TempRam tears down. This new guid is introduced to avoid unnecessary FV migration to improve boot performance. Platform can publish MigrationInfo hob with this guid to customize FV migration info, and PeiCore will only migrate FVs indicated by this Hob info. This is a backwards compatible change, PeiCore will check MigrationInfo hob before migration. If MigrationInfo hobs exists, only migrate FVs recorded by hobs. If MigrationInfo hobs not exists, migrate all FVs to permanent memory. Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Cc: Ray Ni <ray.ni@intel.com> Cc: Guomin Jiang <guomin.jiang@intel.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn> Reviewed-by: Ray Ni <ray.ni@intel.com> Signed-off-by: Cheng Sun <chengx.sun@intel.com>
2023-05-24MdeModulePkg/Core/Pei: set AprioriCount=0 before walking through next FVedk2-stable202305Wendy Liao1-0/+1
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4438 The main dispatch loop in PeiDispatcher() goes through each FV and calls DiscoverPeimsAndOrderWithApriori() to search Apriori file to reorder all PEIMs then do the PEIM dispatched. DiscoverPeimsAndOrderWithApriori() calculates Apriori file count for every FV once and set Private->AprioriCount, but Private->AprioriCount doesn't be set to 0 before dispatch loop walking through the next FV. It causes the peim which sort on less than Private->AprioriCount and depex is not satisfied would be dispatched when dispatch loop go through to a scaned FV, even the peim is not set in APRIORI file. Cc: Leon Chen <leon.chen@insyde.com> Cc: Tim Lewis <tim.lewis@insyde.com> Reported-by: Esther Lee <esther.lee@insyde.com> Signed-off-by: Wendy Liao <wendy.liao@insyde.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2023-04-10MdeModulePkg: Update code to be more C11 compliant by using __func__Rebecca Cran2-2/+2
__FUNCTION__ is a pre-standard extension that gcc and Visual C++ among others support, while __func__ was standardized in C99. Since it's more standard, replace __FUNCTION__ with __func__ throughout MdeModulePkg. Signed-off-by: Rebecca Cran <rebecca@bsdio.com> Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2021-12-07MdeModulePkg: Apply uncrustify changesMichael Kubacki17-2148/+2303
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the MdeModulePkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2021-12-07MdeModulePkg: Change OPTIONAL keyword usage styleMichael D Kinney4-8/+8
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3760 Update all use of ', OPTIONAL' to ' OPTIONAL,' for function params. Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael Kubacki <michael.kubacki@microsoft.com> Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2021-12-07MdeModulePkg: Change use of EFI_D_* to DEBUG_*Michael D Kinney7-63/+55
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3739 Update all use of EFI_D_* defines in DEBUG() macros to DEBUG_* defines. Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael Kubacki <michael.kubacki@microsoft.com> Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2021-09-16MdeModulePkg/Core/Pei: Fix pointer size mismatch in EvacuateTempRam()Michael Kubacki1-2/+5
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3512 In 32-bit PEI, the local variable pointers MigratedFvHeader and RawDataFvHeader in EvacuateTempRam() will be 32-bit in size. The pointers are currently passed to PeiServicesAllocatePages() which expects a 64-bit output buffer of type EFI_PHYSICAL_ADDRESS. When PeiServicesAllocatePages() writes to the buffer, the data can overflow. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Cc: Dandan Bi <dandan.bi@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2021-09-16MdeModulePkg/Core/Pei: Make migrated PEIM message verboseMichael Kubacki1-1/+1
Currently, the debug message that prints the name of a PEIM being migrated is DEBUG_INFO while similar messages are DEBUG_VERBOSE. This change updates the print level to DEBUG_VERBOSE for consistency. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Cc: Dandan Bi <dandan.bi@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2021-09-16MdeModulePkg/Core/Pei: Fix typo in function descriptionsMichael Kubacki2-3/+3
Corrects a typo in the return value description of MigratePeim() and EvacuateTempRam(): "Succesfully" to "Successfully" Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Cc: Dandan Bi <dandan.bi@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2021-08-27MdeModulePkg/PeiCore: Remove MigrateSecModulesInFv()Michael Kubacki1-96/+0
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3564 This function has not been called since it was added in commit 9bedaec. If the function were to remain, it would need to be re-evaluated and tested. This change removes the function since it is not being used. 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> Cc: Debkumar De <debkumar.de@intel.com> Cc: Harry Han <harry.han@intel.com> Cc: Catharine West <catharine.west@intel.com> Cc: Marvin H?user <mhaeuser@posteo.de> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2021-06-16PeiCore: Remove assertion when failing to load PE imageRay Ni1-4/+1
EFI_PEI_LOAD_FILE_PPI is invoked by DxeIpl for loading DxeCore. It's possible that the instance produced by PeiCore fails to load but other instances of EFI_PEI_LOAD_FILE_PPI can load. Signed-off-by: Ray Ni <ray.ni@intel.com> Cc: Jian J Wang <jian.j.wang@intel.com> Acked-by: Hao A Wu <hao.a.wu@intel.com> Cc: Dandan Bi <dandan.bi@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn>
2020-12-04MdeModulePkg: Fix undefined reference to memcpy with XCODE5Vitaly Cheptsov3-8/+8
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3098 XCODE5 toolchain in NOOPT mode generates memcpy when trying to copy PEI_CORE_FV_HANDLE structure. This breaks OVMF compilation with XCODE5. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao A Wu <hao.a.wu@intel.com> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com> Signed-off-by: Vitaly Cheptsov <cheptsov@ispras.ru> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn> Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
2020-07-28MdeModulePkg/Core: Create Migrated FV Info Hob for calculating hash ↵Guomin Jiang3-0/+30
(CVE-2019-11098) REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1614 When we allocate pool to save the rebased PEIMs, the address will change randomly, therefore the hash will change and result PCR0 change as well. To avoid this, we save the raw PEIMs and use it to calculate hash. The MigratedFvInfo HOB will never produce when PcdMigrateTemporaryRamFirmwareVolumes is FALSE, because the PCD control the total feature. 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 <liming.gao@intel.com> Cc: Debkumar De <debkumar.de@intel.com> Cc: Harry Han <harry.han@intel.com> Cc: Catharine West <catharine.west@intel.com> Signed-off-by: Guomin Jiang <guomin.jiang@intel.com> Acked-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2020-07-28MdeModulePkg/PeiCore: Enable T-RAM evacuation in PeiCore (CVE-2019-11098)Michael Kubacki7-9/+1099
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1614 Introduces new changes to PeiCore to move the contents of temporary RAM visible to the PeiCore to permanent memory. This expands on pre-existing shadowing support in the PeiCore to perform the following additional actions: 1. Migrate pointers in PPIs installed in PeiCore to the permanent memory copy of PeiCore. 2. Copy all installed firmware volumes to permanent memory. 3. Relocate and fix up the PEIMs within the firmware volumes. 4. Convert all PPIs into the migrated firmware volume to the corresponding PPI address in the permanent memory location. This applies to PPIs and PEI notifications. 5. Convert all status code callbacks in the migrated firmware volume to the corresponding address in the permanent memory location. 6. Update the FV HOB to the corresponding firmware volume in permanent memory. 7. Use PcdMigrateTemporaryRamFirmwareVolumes to control if enable the feature or not. when disable the PCD, the EvacuateTempRam() will never be called. The function control flow as below: PeiCore() DumpPpiList() EvacuateTempRam() ConvertPeiCorePpiPointers() ConvertPpiPointersFv() MigratePeimsInFv() MigratePeim() PeiGetPe32Data() LoadAndRelocatePeCoffImageInPlace() MigrateSecModulesInFv() ConvertPpiPointersFv() ConvertStatusCodeCallbacks() ConvertFvHob() RemoveFvHobsInTemporaryMemory() DumpPpiList() 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 <liming.gao@intel.com> Cc: Debkumar De <debkumar.de@intel.com> Cc: Harry Han <harry.han@intel.com> Cc: Catharine West <catharine.west@intel.com> Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Acked-by: Laszlo Ersek <lersek@redhat.com>
2020-02-11MdeModulePkg/Core/Pei: Fix various typosAntoine Coeur5-11/+11
Fix various typos in comments and documentation. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao A Wu <hao.a.wu@intel.com> Signed-off-by: Antoine Coeur <coeur@gmx.fr> Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com> Reviewed-by: Hao A Wu <hao.a.wu@intel.com> Signed-off-by: Philippe Mathieu-Daude <philmd@redhat.com> Message-Id: <20200207010831.9046-17-philmd@redhat.com>
2019-12-11MdeModulePkg PeiCore: Improve comment semanticsMichael Kubacki6-27/+31
This patch clarifies wording in several PeiCore comments to improve reading comprehension. Cc: Dandan Bi <dandan.bi@intel.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao A Wu <hao.a.wu@intel.com> Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
2019-12-11MdeModulePkg PeiCore: Fix typosMichael Kubacki12-112/+112
Cc: Dandan Bi <dandan.bi@intel.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao A Wu <hao.a.wu@intel.com> Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
2019-10-09MdeModulePkg: PEI Core: clean up "AprioriFile" handling in FindFileEx()Laszlo Ersek2-2/+2
Clean up two issues around FindFileEx(): - The "AprioriFile" parameter's type differs between the function declaration and the function definition. The correct type is (EFI_PEI_FILE_HANDLE*). - "FfsFileHeader" has type (EFI_FFS_FILE_HEADER*); for clarity, we should cast it explicitly to EFI_PEI_FILE_HANDLE when assigning it to (*AprioriFile). This is a semantic cleanup, there is no functional change. Cc: Dandan Bi <dandan.bi@intel.com> Cc: Hao A Wu <hao.a.wu@intel.com> Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Liming Gao <liming.gao@intel.com> Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Dandan Bi <dandan.bi@intel.com> Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com> Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-06-24MdeModulePkg/PeiMain: PeiAllocatePool: output NULL if HOB creation failsBret Barkelew1-1/+6
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1901 The original logic is ASSERT if fail to create HOB. But that doesn't make sense for release version. So it is required to set the Buffer to null to indicate the failure. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Sean Brogan <sean.brogan@microsoft.com> Cc: Michael Turner <Michael.Turner@microsoft.com> Cc: Bret Barkelew <Bret.Barkelew@microsoft.com> Signed-off-by: Zhichao Gao <zhichao.gao@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Acked-by: Hao A Wu <hao.a.wu@intel.com>
2019-05-09MdeModulePkg/Core: Remove PcdFrameworkCompatibilitySupport usageDandan Bi2-66/+0
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1464 Currently Framework compatibility is not needed and PcdFrameworkCompatibilitySupport will be removed from edk2. So remove the usage of this PCD firstly. Cc: Liming Gao <liming.gao@intel.com> Signed-off-by: Dandan Bi <dandan.bi@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-04-28MdeModulePkg/PeiMain: Change comments of PeiResetSystem2Zhichao Gao2-7/+3
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1460 Refer to Uefi spec 2.8, the ResetData is valid while ResetStatus is EFI_SUCCESS regardless of the ResetType is EfiResetPlatformSpecific or not. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao Wu <hao.a.wu@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Sean Brogan <sean.brogan@microsoft.com> Cc: Michael Turner <Michael.Turner@microsoft.com> Cc: Bret Barkelew <Bret.Barkelew@microsoft.com> Signed-off-by: Zhichao Gao <zhichao.gao@intel.com> Reviewed-by: Hao Wu <hao.a.wu@intel.com>
2019-04-09MdeModulePkg: Replace BSD License with BSD+Patent LicenseMichael D Kinney20-137/+20
https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Hao Wu <hao.a.wu@intel.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
2019-02-28MdeModulePkg/PeiCore: Ensure FfsFileHeader 8 bytes alignedStar Zeng1-2/+2
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=864 REF: CVE-2018-3630 To follow PI spec, ensure FfsFileHeader 8 bytes aligned. Current code only handles (FwVolHeader->ExtHeaderOffset != 0) path, update code to also handle (FwVolHeader->ExtHeaderOffset == 0) path. Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Liming Gao <liming.gao@intel.com> 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> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
2019-02-15MdeModulePkg/PeiMain: Support EFI_PEI_CORE_FV_LOCATION_PPIChasel, Chiu3-15/+44
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1524 When shadowing PeiCore the EFI_PEI_CORE_FV_LOCATION_PPI should be checked to see if PeiCore not in BFV, otherwise just shadowing PeiCore from BFV. Test: Verified on internal platform and booting successfully. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao Wu <hao.a.wu@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Liming Gao <liming.gao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Chasel Chiu <chasel.chiu@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Ray Ni <ray.ni@intel.com>
2018-12-19MdeModulePkg PeiCore: Remove the using of PcdPeiCoreMaxPpiSupportedStar Zeng5-199/+254
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1405 Background as below. Problem: As static configuration from the PCDs, the binary PeiCore (for example in FSP binary with dispatch mode) could not predict how many FVs, Files or PPIs for different platforms. Burden: Platform developers need configure the PCDs accordingly for different platforms. To solve the problem and remove the burden, we can update code to remove the using of PcdPeiCoreMaxFvSupported, PcdPeiCoreMaxPeimPerFv and PcdPeiCoreMaxPpiSupported by extending buffer dynamically for FV, File and PPI management. This patch removes the using of PcdPeiCoreMaxPpiSupported in PeiCore. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao Wu <hao.a.wu@intel.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Chasel Chiu <chasel.chiu@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Chasel Chiu <chasel.chiu@intel.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>