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2026-06-24MdeModulePkg: PeiCore: Add Memory Bin Support to Post-Mem PEIOliver Smith-Denny2-95/+973
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>
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>
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>
2024-07-10MdeModulePkg: 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>
2024-03-14MdeModulePkg: 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>
2023-12-25MdeModulePkg: Support customized FV Migration InformationCheng Sun1-40/+0
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>
2021-12-07MdeModulePkg: Apply uncrustify changesMichael Kubacki1-145/+164
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 use of EFI_D_* to DEBUG_*Michael D Kinney1-4/+4
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>
2020-07-28MdeModulePkg/PeiCore: Enable T-RAM evacuation in PeiCore (CVE-2019-11098)Michael Kubacki1-0/+82
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>
2019-12-11MdeModulePkg PeiCore: Improve comment semanticsMichael Kubacki1-3/+3
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 Kubacki1-8/+8
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>
2019-06-24MdeModulePkg/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>
2019-04-09MdeModulePkg: Replace BSD License with BSD+Patent LicenseMichael D Kinney1-7/+1
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>
2018-06-28MdeModulePkg: Clean up source filesLiming Gao1-22/+22
1. Do not use tab characters 2. No trailing white space in one line 3. All files must end with CRLF Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-04MdeModule PeiCore: Support pre memory page allocationStar Zeng1-26/+533
Support pre memory page allocation. Support FreePages. Allocation made prior to permanent memory will be migrated to permanent memory and the HOB updated. Cc: Liming Gao <liming.gao@intel.com> Cc: Ruiyu Ni <Ruiyu.Ni@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2017-03-06MdeModulePkg/PeiCore: honour minimal runtime allocation granularityArd Biesheuvel1-2/+37
Architectures such as AArch64 may run the OS with 16 KB or 64 KB sized pages, and for this reason, the UEFI spec mandates a minimal allocation granularity of 64 KB for regions that may require different memory attributes at OS runtime. So make PeiCore's implementation of AllocatePages () take this into account as well. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2016-10-27MdeModulePkg/Core: Fix typos in commentsGary Lin1-1/+1
- paramters -> parameters - funciton -> function - dependecy -> dependency - evauated -> evaluated - genric -> generic - retore -> restore - Protocl -> Protocol - availible -> available - elasped -> elapsed - sarted -> started - boundry -> boundary - permenent -> permanent - debuging -> debugging - availble -> available Cc: Feng Tian <feng.tian@intel.com> Cc: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Gary Lin <glin@suse.com> Reviewed-by: Feng Tian <feng.tian@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
2015-11-18MdeModulePkg PeiCore: PeiInstallPeiMemory improper ASSERT test on second callStar Zeng1-1/+1
The ASSERT (PrivateData->PeiMemoryInstalled) in if (PrivateData->PeiMemoryInstalled) condition is useless, it should be ASSERT (FALSE) to follow the code's expectation. Cc: Liming Gao <liming.gao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18887 6f19259b-4bc3-4df7-8a09-765794883524
2015-05-11MdeModulePkg: Update implementation of PeiAllocatePages() to allow ↵Star Zeng1-2/+3
EfiReservedMemoryType. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17394 6f19259b-4bc3-4df7-8a09-765794883524
2014-10-14MdeModulePkg PeiCore: Update the code of PeiAllocatePages() to correctly ↵Star Zeng1-6/+10
consider the overhead sizeof (EFI_HOB_MEMORY_ALLOCATION). It can fix the confused ERROR log like below. "AllocatePages failed: No 0x1 Pages is available. There is only left 0x1 pages memory resource to be allocated." Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16211 6f19259b-4bc3-4df7-8a09-765794883524
2014-01-02Correct the RemainingPages calculation in PEI AllocatePages service.Liming Gao1-2/+2
Signed-off-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15035 6f19259b-4bc3-4df7-8a09-765794883524
2012-07-17Update HobLib and Hob Service to avoid data over flow. lgao41-3/+3
Signed-off-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Rui Sun <rui.sun@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13533 6f19259b-4bc3-4df7-8a09-765794883524
2011-06-09Add assertion in PeiAllocatePool when out of resource.niruiyu1-1/+2
Signed-off-by: niruiyu Reviewed-by: mdkinney git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11776 6f19259b-4bc3-4df7-8a09-765794883524
2010-04-24Update the copyright notice formathhtian1-2/+2
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10420 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-26Add parameter checking for PEI service AllocatePages(), according to PI1.2 ↵xli241-12/+23
errata A. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10112 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-11Coding style fix and minor improvements.rsun31-2/+2
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9977 6f19259b-4bc3-4df7-8a09-765794883524
2010-01-26Remove ASSERT() to make AllocatePool() service match PI spec.klu21-2/+5
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9815 6f19259b-4bc3-4df7-8a09-765794883524
2009-04-08updated to use the term “temporary memory” but not CAReric_tian1-2/+2
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8035 6f19259b-4bc3-4df7-8a09-765794883524
2009-03-12PeiInstallPeiMemory should only be called one time.klu21-0/+11
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7867 6f19259b-4bc3-4df7-8a09-765794883524
2009-03-11Add comments and refine code to avoid addition overflow.qhuang81-1/+5
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7863 6f19259b-4bc3-4df7-8a09-765794883524
2009-03-10Fix a bug that Pages*EFI_PAGES_SIZE might be a negative number.qhuang81-5/+5
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7854 6f19259b-4bc3-4df7-8a09-765794883524
2008-10-31Use #include "XXX.h" for module internal header files.qhuang81-1/+1
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6333 6f19259b-4bc3-4df7-8a09-765794883524
2008-10-14Correct two minor commentslgao41-1/+1
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6109 6f19259b-4bc3-4df7-8a09-765794883524
2008-09-03Clean up BottomOfCarHeap, TopOfCarHeap, SizeOfTemporaryMemory, ↵klu21-16/+3
SizeOfCacheAsRam, MaxTopOfCarHeap from PeiCore's private data structure. Because after PI enabling, these data value can be got from SecCore's handoff data structure. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5786 6f19259b-4bc3-4df7-8a09-765794883524
2008-08-18Re-integrate patch in r5626~r5628:Enhance PeiCore dispatcher and fix a bug ↵qhuang81-35/+35
in the patch. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5669 6f19259b-4bc3-4df7-8a09-765794883524
2008-08-12Temporarily rollback the change from 5625 though 5628 for more investigation.qhuang81-35/+35
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5629 6f19259b-4bc3-4df7-8a09-765794883524
2008-08-11Correct more comments for PeiCore.klu21-35/+35
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5627 6f19259b-4bc3-4df7-8a09-765794883524
2008-08-08Synchronize the comments for PeiService.klu21-10/+10
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5619 6f19259b-4bc3-4df7-8a09-765794883524
2008-07-23Code scrub for PeiCore module.klu21-2/+4
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5558 6f19259b-4bc3-4df7-8a09-765794883524
2008-07-16Fix function comment to follows doxygen format.klu21-90/+56
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5499 6f19259b-4bc3-4df7-8a09-765794883524
2008-03-19Modify all file header to follow doxygen formatklu21-2/+2
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4917 6f19259b-4bc3-4df7-8a09-765794883524
2008-03-10Fix GCC building issue.klu21-6/+0
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4808 6f19259b-4bc3-4df7-8a09-765794883524
2008-02-29Merge Temporary Ram support patch.klu21-84/+50
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4782 6f19259b-4bc3-4df7-8a09-765794883524
2008-02-03Fix bug in latest check-in of "Make sure the base address of stack base and ↵klu21-4/+11
base address of hob start is in page alignment in InstallPeiMemory() interface." git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4666 6f19259b-4bc3-4df7-8a09-765794883524
2008-01-31Roll back the updating of 4646 as it will cause the Richford SoftSDV boot ↵zliu31-11/+4
failure git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4648 6f19259b-4bc3-4df7-8a09-765794883524
2008-01-31Make sure the base address of stack base and base address of hob start is in ↵klu21-4/+11
page alignment in InstallPeiMemory() interface. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4646 6f19259b-4bc3-4df7-8a09-765794883524
2007-11-081) If PeiLoadImage fails, the section extraction PPI or Decompress PPI may ↵qwang121-3/+12
not be ready, we flag that more Peims need to be dispatched. 2) Set the stack to be cacheable before the stack switch occurs so that IPF recovery path will be run from cacheble memory for code, data and stack. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4288 6f19259b-4bc3-4df7-8a09-765794883524
2007-10-18The BaseAddress and Length should be align PAGE according to PI ↵klu21-1/+1
specification for EFI_MEMORY_ALLOCATION_HOB git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4162 6f19259b-4bc3-4df7-8a09-765794883524
2007-09-24Merge branch of PI tree to main trunkklu21-16/+5
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3918 6f19259b-4bc3-4df7-8a09-765794883524
generated by cgit v1.2.3 (git 2.39.0) at 2026-09-29 19:25:33 +0300