Commit graph

347 commits

Author SHA1 Message Date
Oliver Smith-Denny
2e7aa4810b MdeModulePkg: PeiCore: Add Memory Bin Support to Post-Mem PEI
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>
2026-06-24 15:53:58 +00:00
Benjamin Doron
8add400a8b MdeModulePkg: Cleanup debug print readability
All debug prints should end in a newline character.

Signed-off-by: Benjamin Doron <benjamin.doron00@gmail.com>
2026-05-06 10:43:05 +00:00
Ray Ni
fc13220238 MdeModulePkg/PeiCore: Accept MemoryDiscoveredPpi from SecCore
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>
2026-03-19 02:02:47 +00:00
Michael Kubacki
7a934d0bef MdeModulePkg: Replace include guards with #pragma once
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>
2026-02-23 21:01:28 +00:00
Khalid Ali
300dada916 MdeModulePkg/Core: Make PPI services spec complaint
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>
2026-01-30 02:18:50 +00:00
Ard Biesheuvel
bd4bb10d80 MdeModulePkg: Remove ambiguous negation of narrower type
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>
2025-12-03 11:50:28 +01:00
Aaron Pop
5214f931c9 MdeModulePkg: Fix missing NULL tests.
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>
2025-11-22 18:58:47 +00:00
Aaron Pop
57151d88f2 MdeModulePkg: Fix comparison with wider widths.
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>
2025-11-22 18:58:47 +00:00
Michael Kubacki
8a07311710 MdeModulePkg: Add PcdDelayedDispatchMaxEntries
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>
2025-09-23 09:02:04 +08:00
Ray Ni
829e42d3a3 MdeModulePkg/PeiCore: Print GUID of FV and FvFile in debug log
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>
2025-08-25 09:06:35 +00:00
Oliver Smith-Denny
c3479204cc MdeModulePkg: Unify EfiFileName Parsing
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>
2025-07-23 12:57:55 +00:00
Oliver Smith-Denny
1ec1f5d711 MdeModulePkg: Always Print Driver Load Messages
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>
2025-07-23 12:57:55 +00:00
Oliver Smith-Denny
91bb5cee36 MdeModulePkg: Don't Allocate Page 0
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>
2025-07-08 03:45:09 +00:00
Mike Maslenkin
a5cb67fb8d MdeModulePkg: PeiMain: fix warning about uninitialized variable
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>
2025-01-29 17:20:57 +01:00
Star Zeng
7c5ec51175 MdeModulePkg PeiMain: Remove return for PeiCoreBuildHobHandoffInfoTable()
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>
2025-01-26 18:35:08 +00:00
Jeremy Compostella
866abb2338 MdeModulePkg: Replace right bit shift operator with RShiftU64
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>
2024-10-17 13:32:42 +00:00
Jeremy Compostella
996e740cc8 MdeModulePkg: Fix PeiAllocatePages() corner case
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>
2024-10-17 13:32:42 +00:00
Kun Qin
79598f34fa MdeModulePkg: PeiMain: Updated dispatcher for delayed dispatch
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>
2024-10-17 08:51:15 +00:00
Kun Qin
d64d1e195c MdeModulePkg: PeiMain: Introduce implementation of delayed dispatch
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>
2024-10-17 08:51:15 +00:00
ragavarshinib
253b3d678a MdeModulePkg/Core/Pei: Add error handling for Section Length
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>
2024-09-06 06:54:46 +00:00
Awiral Shrivastava
5b08df03f8 MdeModulePkg: Optimize PEI Core Migration Algorithm
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>
2024-07-30 13:51:41 +00:00
Kun Qin
f91211049c MdeModulePkg: Remove PeiAllocatePool() Assert
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>
2024-07-10 02:10:37 +00:00
Zhihao Li
176b9d41f8 MdeModulePkg/Core/Pei: Install MigrateTempRamPpi
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>
2024-06-18 07:23:19 +00:00
Oliver Smith-Denny
68461c2c37 MdeModulePkg: DxeCore: Correct Runtime Granularity Memory Type
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>
2024-03-14 16:29:22 +00:00
Li, Zhihao
371940932d MdeModulePkg/Core/Pei: Improve the copy performance
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>
2024-03-01 18:47:27 +00:00
Cheng Sun
1065536c64 MdeModulePkg: Support customized FV Migration Information
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>
2023-12-25 12:57:18 +08:00
Wendy Liao
ba91d0292e MdeModulePkg/Core/Pei: set AprioriCount=0 before walking through next FV
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>
2023-05-24 12:59:54 +00:00
Rebecca Cran
7b82da70ed MdeModulePkg: Update code to be more C11 compliant by using __func__
__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>
2023-04-10 14:19:57 +00:00
Michael Kubacki
1436aea4d5 MdeModulePkg: Apply uncrustify changes
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>
2021-12-07 17:24:28 +00:00
Michael D Kinney
e3917e22e7 MdeModulePkg: Change OPTIONAL keyword usage style
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>
2021-12-07 17:24:28 +00:00
Michael D Kinney
87000d7708 MdeModulePkg: Change use of EFI_D_* to DEBUG_*
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>
2021-12-07 17:24:28 +00:00
Michael Kubacki
c19d18136e MdeModulePkg/Core/Pei: Fix pointer size mismatch in EvacuateTempRam()
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>
2021-09-16 01:51:36 +00:00
Michael Kubacki
6f501a7c9b MdeModulePkg/Core/Pei: Make migrated PEIM message verbose
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>
2021-09-16 01:51:36 +00:00
Michael Kubacki
6c80564b89 MdeModulePkg/Core/Pei: Fix typo in function descriptions
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>
2021-09-16 01:51:36 +00:00
Michael Kubacki
82f7e315d6 MdeModulePkg/PeiCore: Remove MigrateSecModulesInFv()
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>
2021-08-27 08:32:20 +00:00
Ray Ni
ab2b389e7a PeiCore: Remove assertion when failing to load PE image
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>
2021-06-16 07:51:00 +00:00
Vitaly Cheptsov
31e8a47b62 MdeModulePkg: Fix undefined reference to memcpy with XCODE5
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>
2020-12-04 02:59:38 +00:00
Guomin Jiang
4b68cef04c MdeModulePkg/Core: Create Migrated FV Info Hob for calculating hash (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>
2020-07-28 01:43:16 +00:00
Michael Kubacki
9bedaec05b MdeModulePkg/PeiCore: Enable T-RAM evacuation in PeiCore (CVE-2019-11098)
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>
2020-07-28 01:43:16 +00:00
Antoine Coeur
93b8ed68dd MdeModulePkg/Core/Pei: Fix various typos
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>
2020-02-10 22:30:07 +00:00
Michael Kubacki
d3add11e87 MdeModulePkg PeiCore: Improve comment semantics
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>
2019-12-11 07:00:10 +00:00
Michael Kubacki
d39d1260c6 MdeModulePkg PeiCore: Fix typos
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>
2019-12-11 07:00:10 +00:00
Laszlo Ersek
9ee135501b MdeModulePkg: PEI Core: clean up "AprioriFile" handling in FindFileEx()
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>
2019-10-09 09:40:10 +02:00
Bret Barkelew
8797683f96 MdeModulePkg/PeiMain: PeiAllocatePool: output NULL if HOB creation fails
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>
2019-06-24 10:18:04 +08:00
Dandan Bi
728c7ffac3 MdeModulePkg/Core: Remove PcdFrameworkCompatibilitySupport usage
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>
2019-05-09 09:42:55 +08:00
Zhichao Gao
eac49c837b MdeModulePkg/PeiMain: Change comments of PeiResetSystem2
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>
2019-04-28 09:40:16 +08:00
Michael D Kinney
9d510e61fc MdeModulePkg: Replace BSD License with BSD+Patent License
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>
2019-04-09 10:58:08 -07:00
Star Zeng
467e1ffa76 MdeModulePkg/PeiCore: Ensure FfsFileHeader 8 bytes aligned
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>
2019-02-28 18:22:52 +08:00
Chasel, Chiu
9b23c7ba9c MdeModulePkg/PeiMain: Support EFI_PEI_CORE_FV_LOCATION_PPI
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>
2019-02-15 13:40:30 +08:00
Star Zeng
f2bc359ced MdeModulePkg PeiCore: Remove the using of PcdPeiCoreMaxPpiSupported
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>
2018-12-19 12:33:30 +08:00