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

EmbeddedPkg: Add BuildResourceDescriptor2Hob to HobLibs

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

Add BuildResourceDescriptor2Hob to HobLib implementations as described in PI 1.10 specification. Signed-off-by: Aaron Pop

EmbeddedPkg/PrePiHobLib: Reject oversized GUID HOB payloads

2026-10-19T04:26:39+00:00

Check the GUID HOB payload length before the UINT16 allocation cast. Use the aligned maximum total HOB length of 0xFFF8 instead of 0xFFFF in both the assertion and runtime guard. Return NULL for oversized requests when assertions are disabled or return, and document the allocation and copy-wrapper failure behavior. Signed-off-by: Stanislaw Grams

EmbeddedPkg: Resolve ReportStatusCodeLib library class

2026-10-07T16:10:21+00:00

The ReportStatusCodeLib library class references a library instance that doesn't support that class. This makes the build to throw a warning about it. This change resolves ReportStatusCodeLib into one of the supported instances. There are 2 instances support that class which are DxeReportStatusCodeLib and PeiReportStatusCodeLib. Signed-off-by: Khalid Ali

EmbeddedPkg: MmcIoBlocks: Fix logical error in timeout

2026-09-04T01:50:12+00:00

In eMMC status detection logic in the `MmcIoBlocks' function, if a timeout occurs, the Timeout variable will end with a value -1 as the self- subtraction operation is performed after determining 0 in the while loop. This means that the function could never return a `EFI_NOT_READY' status. As Timeout is of a signed type, change the conditional statement to less-than-or-equal to 0 to fix timeout/busy detection. Signed-off-by: snowpiaoling <1972997989@qq.com>

EmbeddedPkg: MmcTransferBlock: Add Timeout Handle

2026-09-03T14:08:04+00:00

In the `MmcTransferBlock' function, the `Timeout' variable is defined but not processed, so timeout handling is added. Signed-off-by: snowpiaoling <1972997989@qq.com>

EmbeddedPkg: PrePiHobLib: Don't Duplicate Stack Hob Mem Alloc

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

Currently, PrePiHobLib will produce two memory allocation HOBs for the stack, based on the behavior it copied from DxeIpl. This is an incorrect description of handoff state. This commit follows the DxeIpl logic change to only produce a single memory allocation HOB for the new stack. The difference is that PrePiHobLib does not preserve the old stack region and instead frees it. That behavior is preserved. Signed-off-by: Oliver Smith-Denny

EmbeddedPkg: normalize mmc interaction latency to 1us

2026-08-30T01:48:20+00:00

Upon inspecting the source code, I found that the original implementation of eMMC timeout in MmcDxe is affected by the CPU execution speed. With higher-performance CPUs, the actual timeout duration would be shortened as it was not based on wall clock. Add a precise 1us delay to each iteration of the wait loop to make the actual duration of the delay clock- and performance-agnostic. Signed-off-by: snowpiaoling <1972997989@qq.com>

EmbeddedPkg/AcpiLib: Fix memory corruption in AcpiAmlObjectUpdateInteger

2026-08-12T08:13:56+00:00

The original implementation of AcpiAmlObjectUpdateInteger had a critical bug when updating integer objects that were encoded with AML_ZERO_OP(0x00) or AML_ONE_OP(0x01), which are 1-byte optimized encodings. When the caller tried to update such an object to a value other than 0 or 1, the code would: 1. Overwrite the opcode byte with the new value's LSB 2. This changed the opcode itself, e.g. 0x0B becomes AML_WORD_PREFIX 3. Subsequent AML bytes (name segments of following objects) get misinterpreted as integer data 4. Result: silent AML structure is silently corrupted, causing the OS to fail parsing ACPI tables and eventually crash. The fix: 1. Only allow 0 -> 0 or 1 updates using the original 1-byte encoding 2. For any other value, explicitly fail with a diagnostic 3. Provide clear debug instructions on how to fix the ASL source Reviewed-by: jie.fu Signed-off-by: Johnny.Fan

Global: Set MarkdownLintCheck plugin to AuditOnly

2026-07-29T12:32:09+00:00

In preparation for the MarkdownLintCheck plugin being added to the repo, this change defaults the plugin to `AuditOnly` mode in each package. This allows package maintainers to enable the plugin as they see fit. Continuous-integration-options: PatchCheck.ignore-multi-package Signed-off-by: Michael Kubacki

EmbeddedPkg: PrePiLib: Fix uninitialized variable warnings

2026-06-24T14:49:50+00:00

In FfsProcessSection(), delete CompressionSectionHeaderSize and move CompressedData to avoid the compiler warning without changing functional behavior. Signed-off-by: Tuan Phan