Tianocore/edk2.git/MdeModulePkg/Core, branch dependabot/github_actions/github/codeql-action-4.39.1

MdeModulePkg: Use DUMP_HEX Macro

2026-10-23T03:44:49+00:00

Several places in MdeModulePkg were implementing their own versions of hex dumping logic; use the DebugLib.h macro instead. Prints change slightly, they are now standardized with uppercase hex, prefixes on every row instead of in the header only, and VarCheckHiiLib no longer indents rows with *ASCII*. Signed-off-by: Oliver Smith-Denny

MdeModulePkg/Core: Add resource and GCD verification

2026-10-22T23:28:02+00:00

Add debug verification for Resource Descriptor HOBs. Parse both v1 and v2 Resource Descriptor HOBs, and warn about overlapping ranges. Check I/O resources separately from memory and MMIO resources. Print the complete GCD memory space map starting at address zero and represent any gaps as non-existent memory with These changes are for debug purposes only. Examining the debug output will enable a platform owner to view overlapping resource hobs, and show gaps in the memory map based upon input from the PEI phase. Signed-off-by: Aaron Pop

MdeModulePkg/Core: Add EFI_HOB_RESOURCE_DESCRIPTOR2 support

2026-10-22T23:28:02+00:00

Add IS_RESOURCE_DESCRIPTOR_HOB() and GET_RESOURCE_HOB_ATTRIBUTE() macros to handle both EFI_HOB_TYPE_RESOURCE_DESCRIPTOR and EFI_HOB_TYPE_RESOURCE_DESCRIPTOR2 HOB types. Resource Descriptor v2 HOBs use ResourceCapabilities instead of ResourceAttribute, so they cannot be accessed through the same union member. Update consumers of ResourceDescriptorHobs to understand both EFI_HOB_TYPE_RESOURCE_DESCRIPTOR and EFI_HOB_TYPE_RESOURCE_DESCRIPTOR2. Signed-off-by: Aaron Pop

MdeModulePkg/Core/Dxe/Event: limit signal queue to event groups

2026-10-13T15:50:00+00:00

Add only grouped notify events to gEventSignalQueue so event group signaling does not scan unrelated events. Ungrouped EVT_NOTIFY_SIGNAL events are dispatched directly by CoreSignalEvent() and do not need to be visited by CoreNotifySignalList(). Signed-off-by: Sureshkumar Ponnusamy

MdeModulePkg: Use OpenProtocol() for protocol presence check

2026-10-11T06:58:28+00:00

The function CoreInstallProtocolInterfaceNotify() checks if the protocol already installed on handle by using HandleProtocol(). And later HandleProtocol() calls OpenProtocol(). If it is determined that protocol is present on handle, the protocol is being left open which could leak internal resources. This change replaces HandleProtocol() with OpenProtocol() with test attribute, thus no CloseProtocol() is required. Signed-off-by: Khalid Ali

MdeModulePkg: DxeIpl: Don't Duplicate Mem Alloc Hob for Stack

2026-09-03T09:00:37+00:00

Currently, DxeIpl will allocate memory for the new DXE stack, which creates a memory allocation HOB for that region. It will then call UpdateStackHob() to find the stack HOB with the old stack info and update the memory address/length to correspond to the new stack. It then creates a new memory allocation HOB for the old stack region as it needs to remain mapped. This ends up creating two memory allocation HOBs for the new stack: a regular memory allocation HOB for the AllocatePages() call and then the stack HOB (which is a memory allocation HOB with a special name). When DXE Core ingests these, it will ignore one of the two HOBs when it goes to allocate memory. However, this is incorrectly describing handoff state. There never should be overlapping memory allocation HOBs. This commit updates DxeIpl behavior to instead find the old stack HOB, convert it to a regular memory allocation HOB, then find the memory allocation HOB for the new stack range and convert it into the stack HOB. Signed-off-by: Oliver Smith-Denny

MdeModulePkg/Core/Dxe: Add interrupt-enable nesting guard

2026-08-25T23:36:26+00:00

Add interrupt-enable recursion depth tracking using mInterruptEnableNestDepth and a bounded assertion in CoreSetInterruptState(). This provides early detection for unintended recursive interrupt-enable loops. Signed-off-by: Michael D Kinney

MdeModulePkg/Core/Dxe: Refactor CoreSetInterruptState enable path

2026-08-25T23:36:26+00:00

Refactor the CoreSetInterruptState(TRUE) flow so EnableInterrupt() is invoked through a single call site. Behavior is unchanged: interrupts remain disabled in SMM and are enabled outside SMM. Signed-off-by: Michael D Kinney

MdeModulePkg: MemoryBins: make GoogleTest page-granularity aware

2026-07-31T15:16:47+00:00

MemoryBinGoogleTest.PopulatesFromValidHob asserted fixed page counts for each memory type. PopulateMemoryTypeInformation, however, rounds the runtime memory types (EfiReservedMemoryType, EfiACPIMemoryNVS, EfiRuntimeServicesCode, EfiRuntimeServicesData) up to RUNTIME_PAGE_ALLOCATION_GRANULARITY. That granularity equals EFI_PAGE_SIZE on IA32/X64, so the hard-coded values happened to match, but it is 64 KiB on AArch64, where the same inputs round up to different page counts and the test failed. Compute the expected page counts with the same granularity rounding the production code uses, so the test passes on all host architectures instead of only x86. Signed-off-by: Jeff Brasen

MdeModulePkg: Dxe Core: Correct gMemoryTypeInformation Definition

2026-07-09T12:46:51+00:00

Commit 43e306806e3c1ed3ad7e9913492732e893cafa0f added support to DXE Core for EfiUnacceptedMemoryType. However, it incorrectly added EFI_GCD_MEMORY_TYPE_UNACCEPTED to gMemoryTypeInformation, which is the GCD memory type that is associated with EfiUnacceptedMemoryType. All other changes from that PR appear correct. This is corrected to the EFI memory type. The Memory Bin Google Test copied this incorrect definition, so it is updated as well. Signed-off-by: Oliver Smith-Denny