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2026-06-24MdeModulePkg: DxeCore: Update Memory Statistics from PEIOliver Smith-Denny1-0/+15
If memory bins are enabled for PEI, PEI will produce Memory Allocation HOBs marked with gEfiMemoryTypeInformationGuid. If these exist, DXE core will now process the stats from them to have accurate numbers. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2026-06-24MdeModulePkg: Dxe Core: Split Memory Bin Logic Into Separate FileOliver Smith-Denny1-222/+0
This commits splits out logic currently contained in Gcd.c and Page.c to a new file called MemoryBin.c. This is set up in preparation to add support to PEI for memory bins (an S4 resume stability feature). MemoryBin.c takes all global state in as parameters so that DXE core can use globals and PEI core can use HOBs. There is no logic change here, just consolidating the functionality to share with PEI. This was requested not to be a library. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2026-06-24MdeModulePkg: Dxe Core: Prep CoreSetMemoryTypeInformationRange for PEIOliver Smith-Denny1-1/+5
Migrate CoreSetMemoryTypeInformationRange() to not use globals so it can be used in PEI as well. This temporarily moves the EFI_MEMORY_STATISTICS structure to DxeMain.h so that it can be used in Gcd.c as well as Page.c. This will migrate to a different private header once that is included. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2026-06-24MdeModulePkg: DxeCore: Add GetMemoryTypeInformationResourceHob HelperOliver Smith-Denny1-37/+73
In preparation for sharing memory bin logic with PEI, create a helper function that finds and validates a resource descriptor HOB owned by gEfiMemoryTypeInformationGuid. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2026-06-24MdeModulePkg: DxeCore: Create PopulateMemoryTypeInformation HelperOliver Smith-Denny1-38/+119
In preparation for supporting shared memory bin logic in DXE and PEI, create a PopulateMemoryTypeInformation() helper function. This function searches for a Memory Type Information Hob and populates an EFI_MEMORY_TYPE_INFORMATION struct with it. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2026-06-24MdeModulePkg: Dxe Core: Update Bin Size Helper FnOliver Smith-Denny1-12/+19
In preparation for sharing memory bin logic between PEI and DXE, update CaclulateTotalMemoryBinSizeNeeded() to take gMemoryTypeInformation by reference. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2026-06-23MdeModulePkg/Core/Dxe/Gcd: make persistent override special-purposeSureshkumar Ponnusamy1-4/+4
Fix the GCD memory type selection logic in DXE GCD initialization so persistent memory correctly takes precedence over special-purpose memory when both attributes are present. The existing code/comment said persistent should win, but the condition order allowed special-purpose to overwrite persistent. This change swaps the checks so behavior matches the intended precedence and comment. Signed-off-by: Sureshkumar Ponnusamy <sponnusamy@microsoft.com>
2026-06-08MdeModulePkg: Dxe Core: Use CalculateTotalMemoryBinSizeNeeded()Oliver Smith-Denny1-19/+0
CoreSetMemoryTypeInformationRange() currently calculates the bin size needed independently from the CalculateTotalMemoryBinSizeNeeded() function. This commit updates to use that function and remove the duplication. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2026-06-08MdeModulePkg: GCD: Use Alignment Requirement in Bin Size CalcOliver Smith-Denny1-5/+61
Currently CalculateTotalMemoryBinSizeNeeded() does not take runtime alignment granularity considerations into account. This means that the GCD initialization code can choose resource desc HOBs to use for the bin region that are actually too small and fail to initialize the bins. This fixes CalculateTotalMemoryBinSizeNeeded() to take the alignment requirements into consideration, both for size and for alignment of the bin address range. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2026-02-24MdeModulePkg: Replace include guards with #pragma onceMichael Kubacki1-4/+1
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>
2025-11-22MdeModulePkg: Fix missing NULL tests.Aaron Pop1-7/+34
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: DxeCore: Adding check for underflow before subtractionKun Qin1-2/+8
During DXE core memory service initialization, the system would check available resource descriptor hobs against the memory top from PHIT hob. However, it is possible that a given resource descriptor hob will not be larger than the cover the memory top, causing the Length calculation to underflow. This change adds a check for potential underflow before performing the subtraction. Signed-off-by: Kun Qin <kun.qin@microsoft.com>
2025-11-22MdeModulePkg: DxeCore: Check overflow before using resource hob memory topKun Qin1-4/+25
Current GCD logic uses plain addition calulation when iterating through the resource descriptor hobs. However, if the resource descriptor is incorrectly prepared, this could cause incorrect memory initialization and other failures down the boot process. This change adds an overflow check before using the value. Signed-off-by: Kun Qin <kun.qin@microsoft.com>
2025-10-16MdeModulePkg: DXE Core: Correct Usage of EFI_MEMORY_ATTRIBUTE_MASKOliver Smith-Denny1-2/+2
edk2 commit 3bd5c994c879f78e8e3d5346dc3b627f199291aa added usage of EFI_MEMORY_ATTRIBUTE_MASK to edk2. However, it applied it incorrectly to some places that should instead use EFI_MEMORY_ACCESS_MASK. EFI_MEMORY_ACCESS_MASK contains the actual HW page table access attributes (read protect, read only, no-execute), whereas EFI_MEMORY_ATTRIBUTE_MASK contains the access attributes in addition to some virtual attributes (special purpose and cpu crypto). The GCD has a behavior where if SetMemorySpaceAttributes() is called with only virtual attributes set, it will not call into CpuDxe to change the attributes; 0 is a valid page table attribute set (it means RWX). However, after the above change, this behavior was altered so that if EFI_MEMORY_SP or EFI_MEMORY_CPU_CRYPTO is applied, in attempt to just update these virtual attributes, the GCD will call into CpuDxe and apply RWX instead, which is not the intention of the caller. One other place this was done incorrectly was in CoreGetMemoryMap, but that was fixed in f1567720b13a578ffa54716119f826df622babcd. SetUefiImageMemoryAttributes() is also updated here because that logic was copied from the check the GCD has about whether to call CpuDxe or not. Now that the GCD has been corrected, this also needs to be corrected. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2025-05-05MdeModulePkg: Shortcircuit GCD Dumping Logic if Not PrintingOliver Smith-Denny1-0/+14
CoreDumpGcdMemorySpaceMap() gets called on every update to the GCD, but it only prints if DEBUG_GCD is set. However, the compiler is not smart enough to remove all of this logic if we are not printing anything, so we end up needlessly allocating memory for the copy of the map and spending many cycles looping through each entry, only to not print anything. This code is compiled out on release builds, but slows down debug builds that aren't printing at DEBUG_GCD level. This patch updates CoreDumpGcdMemorySpaceMap() to shortcircuit and immediately exit if DEBUG_GCD is not set. It also adds the same logic to CoreDumpGcdIoSpaceMap(), which is called less frequently, but has the same issue. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2025-04-27MdeModulePkg: DxeCore: Set Image Protections Through GCDOliver Smith-Denny1-1/+1
Today, SetUefiImageMemoryAttributes calls directly to the CPU Arch protocol to set EFI_MEMORY_XP or EFI_MEMORY_RO on image memory. However, this bypasses the GCD and so the GCD is out of sync with the actual state of memory. This can cause an issue in the scenario where a new attribute is being set (whether a virtual attribute or a real HW attribute), if the GCD attributes are queried for a region and the new attribute is appended to the existing GCD attributes (which are incorrect), then the incorrect attributes can get applied. This can result in setting EFI_MEMORY_XP on code sections of images and causing an execution fault. This patch updates SetUefiImageMemoryAttributes to call into the GCD to update the attributes there and let the GCD code call into the CPU Arch protocol to update the page table. Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
2025-03-31MdeModulePkg/Core: Add Hot Pluggable type to Attribute Conversion TableINDIA\sachinganesh1-0/+1
Hot Pluggable resource attribute was introduced in UEFI 2.11 and PI 1.9 specifications. This type should have an entry in the Attribute Conversion Table. Signed-off-by: Sachin Ganesh <sachinganesh@ami.com>
2025-02-25MdeModulePkg: Add the EFI_RESOURCE_ATTRIBUTE_SPECIAL_PURPOSE attributePatrick Payne1-1/+8
Add the EFI_RESOURCE_ATTRIBUTE_SPECIAL_PURPOSE resource attribute as per the PI 1.8 spec. This flag is used to indicate that the memory should be treated as special purpose memory (SPM). Cc: Liming Gao <gaoliming@byosoft.com.cn> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
2024-08-29MdeModulePkg: Gcd: Only Update gMemoryMap Attributes if Correct GCD TypeOliver Smith-Denny1-8/+15
Currently whenever gDS->SetMemorySpaceCapabilities() is called, it attempts to set the corresponding attributes in the gMemoryMap descriptor. However, gMemoryMap only contains entries from GCD types EfiGcdMemoryTypeSystemMemory and EfiGcdMemoryTypeMoreReliable, so for all other types a failure is reported in the code. This is a failure that is expected, so it does not provide value and can lead to real failures being ignored. This patch updates the gDS->SetMemorySpaceCapabilities() code to only call into updating gMemoryMap if the GCD type is SystemMemory or MoreReliable, to avoid spurious errors being reported. This also avoids the expensive operation of searching through gMemoryMap for entries we know we will fail to find. Signed-off-by: Oliver Smith-Denny <osde@linux.microsoft.com>
2024-06-02MdeModulePkg: Update GCD attribute conversion to support SP attributeDu Lin1-0/+1
Add a new entry into GCD attribute conversion table to convert EFI_RESOURCE_ATTRIBUTE_SPECIAL_PURPOSE to EFI_MEMORY_SP. Signed-off-by: Du Lin <du.lin@intel.com>
2024-05-08MdeModulePkg: Use newly defined Unaccepted Memory TypeSachin Ganesh1-5/+5
EFI_RESOURCE_MEMORY_UNACCEPTED has been officially defined in the PI 1.8 specification. So all temporary solutions have been replaced with the actual definition. Cc: Felix Polyudov <felixp@ami.com> Cc: Dhanaraj V <vdhanaraj@ami.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Signed-off-by: Sachin Ganesh <sachinganesh@ami.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2024-01-30MdeModulePkg/Core/Dxe: Set MemoryTypeInfo bin range from HOBMichael D Kinney1-3/+69
Provide an optional method for PEI to declare a specific address range to use for the Memory Type Information bins. The current algorithm uses heuristics that tends to place the Memory Type Information bins in the same location, but memory configuration changes across boots or algorithm changes across a firmware updates could potentially change the Memory Type Information bin location. If the bin locations move across an S4 save/resume cycle, then the S4 resume may fail. Enabling this feature increases the number of scenarios that an S4 resume operation may succeed. If the HOB List contains a Resource Descriptor HOB that describes tested system memory and has an Owner GUID of gEfiMemoryTypeInformationGuid, then use the address range described by the Resource Descriptor HOB as the preferred location of the Memory Type Information bins. If this HOB is not detected, then the current behavior is preserved. The HOB with an Owner GUID of gEfiMemoryTypeInformationGuid is ignored for the following conditions: * The HOB with an Owner GUID of gEfiMemoryTypeInformationGuid is smaller than the Memory Type Information bins. * The HOB list contains more than one Resource Descriptor HOB with an owner GUID of gEfiMemoryTypeInformationGuid. * The Resource Descriptor HOB with an Owner GUID of gEfiMemoryTypeInformationGuid is the same Resource Descriptor HOB that that describes the PHIT memory range. Cc: Liming Gao <gaoliming@byosoft.com.cn> Cc: Aaron Li <aaron.li@intel.com> Cc: Liu Yun <yun.y.liu@intel.com> Cc: Andrew Fish <afish@apple.com> Cc: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2022-11-01MdeModulePkg: Update Dxe to handle unaccepted memory typeMin M Xu1-0/+6
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3937 Unaccepted memory is a kind of new memory type, CoreInitializeGcdServices() and CoreGetMemoryMap() are updated to handle the unaccepted memory type. Ref: microsoft/mu_basecore@97e9c31 Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Cc: Ray Ni <ray.ni@intel.com> Cc: Erdem Aktas <erdemaktas@google.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn> Signed-off-by: Min Xu <min.m.xu@intel.com>
2021-12-07MdeModulePkg: Apply uncrustify changesMichael Kubacki2-473/+543
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 complex DEBUG_CODE() to DEBUG_CODE_BEGIN/END()Michael D Kinney1-4/+4
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3767 Update use of DEBUG_CODE(Expression) if Expression is a complex code block with if/while/for/case statements that use {}. 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 Kinney1-2/+2
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>
2020-11-05MdeModulePkg/Gcd: Check memory allocation when initializing memoryJeff Brasen1-0/+58
CoreInitializeMemoryServices was not checking for any existing memory allocation created in the HOB producer phase. If there are memory allocations outside of the region covered by the HOB List then Gcd could select that region for memory which can result in the memory allocation to not be handled and memory overwrites. Signed-off-by: Jeff Brasen <jbrasen@nvidia.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn> Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
2020-07-15MdeModulePkg: Add New Memory AttributesOleksiy Yakovlev1-9/+2
Add usage of EFI_MEMORY_SP and EFI_MEMORY_CPU_CRYPTO attributes introduced in UEFI 2.8 (UEFI 2.8, mantis 1919 and 1872) Use attributes bitmasks, defined in MdePkg. Signed-off-by: Oleksiy Yakovlev <oleksiyy@ami.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Message-Id: <20200702205039.52400-3-oleksiyy@ami.com> Reviewed-by: Dandan Bi <dandan.bi@intel.com> Tested-by: Laszlo Ersek <lersek@redhat.com>
2019-04-09MdeModulePkg: Replace BSD License with BSD+Patent LicenseMichael D Kinney2-14/+2
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>
2018-12-20MdeModulePkg/Dxe/Gcd: disregard memory above MAX_ALLOC_ADDRESSArd Biesheuvel1-4/+4
Update the GCD memory map initialization code so it disregards memory that is not addressable by the CPU at boot time. This only affects the first memory descriptor that is added, other memory descriptors are permitted that describe memory ranges that may be accessible to the CPU itself only when executing under the OS. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
2018-10-30MdeModulePkg/Core: fix an issue of potential NULL pointer accessJian J Wang1-1/+1
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1286 This issue is introduced by bb685071c2602cf786ea84c69bbebf2158194a38. The *MemorySpaceMap assigned with NULL (line 1710) value might be accessed (line 1726/1730) without any sanity check. Although it won't happen in practice because of line 1722, we still need to add check against NULL to make static code analyzer happy. 1710 *MemorySpaceMap = NULL; .... ... 1722 if (DescriptorCount == *NumberOfDescriptors) { .... ... 1726 Descriptor = *MemorySpaceMap; .... ... 1730 BuildMemoryDescriptor (Descriptor, Entry); Tests: Pass build and boot to shell. Cc: Hao Wu <hao.a.wu@intel.com> Cc: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Hao Wu <hao.a.wu@intel.com>
2018-10-26MdeModulePkg/Core: prevent re-acquire GCD memory lockJian J Wang1-25/+62
This issue is hidden in current code but exposed by introduction of freed-memory guard feature due to the fact that the feature will turn all pool allocation to page allocation. The solution is moving the memory allocation in CoreGetMemorySpaceMap() to be out of the GCD memory map lock. CoreDumpGcdMemorySpaceMap() => CoreGetMemorySpaceMap() => CoreAcquireGcdMemoryLock () * AllocatePool() => InternalAllocatePool() => CoreAllocatePool() => CoreAllocatePoolI() => CoreAllocatePoolPagesI() => CoreAllocatePoolPages() => FindFreePages() => PromoteMemoryResource() => CoreAcquireGcdMemoryLock() ** Cc: Star Zeng <star.zeng@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
2018-06-28MdeModulePkg: Clean up source filesLiming Gao1-38/+38
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>
2018-04-08MdeModulePkg/Gcd: Suppress incorrect compiler/analyzer warningsStar Zeng1-1/+5
It is caused by 0c9f2cb10b7ddec56a3440e77219fd3ab1725e5c and false positive. Initialize CpuArchAttributes to suppress incorrect compiler/analyzer warnings. Cc: Dandan Bi <dandan.bi@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Dandan Bi <dandan.bi@intel.com>
2018-04-05MdeModulePkg/Gcd: Filter gCpu->SetMemoryAttributes() callsKinney, Michael D1-3/+22
This patch fixes an issue with VlvTbltDevicePkg introduced by commit 5b91bf82c67b586b9588cbe4bbffa1588f6b5926. The history is as below. To support heap guard feature, 14dde9e903bb9a719ebb8f3381da72b19509bc36 added support for SetMemorySpaceAttributes() to handle page attributes, but after that, a combination of CPU arch attributes and other attributes was not allowed anymore, for example, UC + RUNTIME. It is a regression. Then 5b91bf82c67b586b9588cbe4bbffa1588f6b5926 was to fix the regression, and we thought 0 CPU arch attributes may be used to clear CPU arch attributes, so 0 CPU arch attributes was allowed to be sent to gCpu->SetMemoryAttributes(). But some implementation of CPU driver may return error for 0 CPU arch attributes. That fails the case that caller just calls SetMemorySpaceAttributes() with none CPU arch attributes (for example, RUNTIME), and the purpose of the case is not to clear CPU arch attributes. This patch filters the call to gCpu->SetMemoryAttributes() if the requested attributes is 0. It also removes the #define INVALID_CPU_ARCH_ATTRIBUTES that is no longer used. Cc: Heyi Guo <heyi.guo@linaro.org> Cc: Yi Li <phoenix.liyi@huawei.com> Cc: Renhao Liang <liangrenhao@huawei.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Eric Dong <eric.dong@intel.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com> Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
2018-04-02MdeModulePkg/Gcd: Fix bug of attribute conversionHeyi Guo1-5/+0
For gDS->SetMemorySpaceAttributes(), when user passes a combined memory attribute including CPU arch attribute and other attributes, like EFI_MEMORY_RUNTIME, ConverToCpuArchAttributes() will return INVALID_CPU_ARCH_ATTRIBUTES and skip setting page/cache attribute for the specified memory space. We don't see any reason to forbid combining CPU arch attributes and non-CPU-arch attributes when calling gDS->SetMemorySpaceAttributes(), so we remove the check code in ConverToCpuArchAttributes(); the remaining code is enough to grab the interested bits for Cpu->SetMemoryAttributes(). Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Heyi Guo <heyi.guo@linaro.org> Signed-off-by: Yi Li <phoenix.liyi@huawei.com> Signed-off-by: Renhao Liang <liangrenhao@huawei.com> Reviewed-by: Star Zeng <star.zeng@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Eric Dong <eric.dong@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com>
2018-03-16MdeModulePkg/Core: allow HeapGuard even before CpuArchProtocol installedJian J Wang1-0/+10
Due to the fact that HeapGuard needs CpuArchProtocol to update page attributes, the feature is normally enabled after CpuArchProtocol is installed. Since there're some drivers are loaded before CpuArchProtocl, they cannot make use HeapGuard feature to detect potential issues. This patch fixes above situation by updating the DXE core to skip the NULL check against global gCpu in the IsMemoryTypeToGuard(), and adding NULL check against gCpu in SetGuardPage() and UnsetGuardPage() to make sure that they can be called but do nothing. This will allow HeapGuard to record all guarded memory without setting the related Guard pages to not- present. Once the CpuArchProtocol is installed, a protocol notify will be called to complete the work of setting Guard pages to not-present. Please note that above changes will cause a #PF in GCD code during cleanup of map entries, which is initiated by CpuDxe driver to update real mtrr and paging attributes back to GCD. During that time, CpuDxe doesn't allow GCD to update memory attributes and then any Guard page cannot be unset. As a result, this will prevent Guarded memory from freeing during memory map cleanup. The solution is to avoid allocating guarded memory as memory map entries in GCD code. It's done by setting global mOnGuarding to TRUE before memory allocation and setting it back to FALSE afterwards in GCD function CoreAllocateGcdMapEntry(). Cc: Star Zeng <star.zeng@intel.com> Cc: Eric Dong <eric.dong@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
2017-10-10MdeModulePkg: Update DxeCore to consume PI EfiGcdMemoryTypePersistentLiming Gao1-2/+2
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-21MdeModulePkg/Core: Fix out-of-sync issue in GCDJian J Wang1-18/+27
From GCD perspective, its SetMemorySpaceAttributes() method doesn't accept page related attributes. That means users cannot use it to change page attributes, and have to turn to CPU arch protocol to do it, which is not be allowed by PI spec. Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Eric Dong <eric.dong@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Suggested-by: Jiewen Yao <jiewen.yao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-01-12MdeModulePkg/DxeCore:Clear RT attribute on SetCapabilities.Jiewen Yao1-1/+1
When gDS->SetMemorySpaceCapabilities() is called, current DXE core will sync all GCD attributes to memory map attributes, including RUNTIME attributes. It is wrong, because RUNTIME attributes should be set for runtime memory only. This fix clears the RUNTIME attributes before convert to UEFI memory map. So that the UEFI memory map is good after gDS->SetMemorySpaceCapabilities() is called. Cc: Star Zeng <star.zeng@intel.com> Cc: Feng Tian <feng.tian@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-01-10MdeModulePkg/DxeCore: Fix ASSERT() from GCD DEBUG() messagesMichael Kinney1-3/+11
If a BaseAddress of NULL is passed into DXE Core services CoreAllocateIoSpace() or CoreAllocateMemorySpace(), and DEBUG() messages are enabled, then a NULL pointer reference is made. The parameter check for BaseAddress is performed in the function CoreAllocateSpace() after the DEBUG() messages. A check is added in the DEBUG() messages to prevent the NULL pointer reference. This issue was found with PI SCTs with DEBUG messages enabled in the DXE Core. Cc: Feng Tian <feng.tian@intel.com> Cc: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Feng Tian <feng.tian@Intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2015-09-21MdeModulePkg/Core/Dxe/Gcd: remove set but not used variablesLaszlo Ersek1-6/+0
These trip up compilation with gcc. Cc: Liming Gao <liming.gao@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Star Zeng <star.zeng@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18515 6f19259b-4bc3-4df7-8a09-765794883524
2015-09-18MdeModulePkg DxeCore: Take the range in resource HOB for PHIT as higher priorityStar Zeng1-68/+95
Take the range in the resource descriptor HOB for the memory region described by the PHIT as higher priority if it is big enough. It can make the memory bin allocated to be at the same memory region with PHIT that has more better compatibility to avoid memory fragmentation for some code practices assume and allocate <4G ACPI memory. Also let the minimal memory size needed include the total memory bin size needed to make sure memory bin could be allocated successfully. Cc: Jiewen Yao <jiewen.yao@intel.com> 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: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18503 6f19259b-4bc3-4df7-8a09-765794883524
2015-09-17MdeModulePkg DxeCore: Relocate HOB List after other tested memory resources ↵Star Zeng1-12/+53
added The HOB List relocation should be at after all the tested memory resources added (except the memory space that covers HOB List) to the memory services, because the memory resource found in CoreInitializeMemoryServices() may have not enough remaining resource for HOB List. And the memory space that covers HOB List should be processed after HOB List relocation to avoid the resources allocated by others to corrupt HOB List before its relocation. Cc: Jiewen Yao <jiewen.yao@intel.com> 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: Jiewen Yao <jiewen.yao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18499 6f19259b-4bc3-4df7-8a09-765794883524
2015-05-19MdeModulePkg: Update the short name for persistent memory type.Liming Gao1-1/+1
This change will make DEBUG information be aligned with DEBUG_GCD enabled. Contributed-under: TianoCore Contribution Agreement 1.0 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@17470 6f19259b-4bc3-4df7-8a09-765794883524
2015-05-11MdeModulePkg DxeCore: Add memory more reliable support.Star Zeng1-31/+49
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@17400 6f19259b-4bc3-4df7-8a09-765794883524
2015-05-11MdeModulePkg DxeCore: Add read only memory support.Star Zeng1-0/+4
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@17397 6f19259b-4bc3-4df7-8a09-765794883524
2015-04-29MdeModulePkg: Add support for UEFI2.5 and PI1.4 PersistentMemory featureLiming Gao1-2/+10
Update DxeCore to collect PersistentMemory resource and report them in EFI memory map. Contributed-under: TianoCore Contribution Agreement 1.0 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@17242 6f19259b-4bc3-4df7-8a09-765794883524
2014-12-23MdeModulePkg: fix mixed dos and linux EOL format issueHot Tian1-24/+24
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Hot Tian <hot.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16552 6f19259b-4bc3-4df7-8a09-765794883524
2014-11-20MdePkg/MdeModulePkg: Implement the missing SetMemorySpaceCapabilities function.Eugene Cohen2-14/+77
It is defined in the PI Specification version 1.3. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Eugene Cohen <eugene@hp.com> Reviewed-by: Liming Gao <liming.gao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16409 6f19259b-4bc3-4df7-8a09-765794883524