Tianocore/edk2.git/MdePkg/Library/BaseLib, branch dependabot/github_actions/github/codeql-action-4

MdePkg: Add code to detect running as an SEV guest

2025-11-04T06:51:50+00:00

Similar to Intel's Tdx, we need a mechanism to detect running as an AMD SEV guest that will work in all phases everywhere. This will be immediately used to prevent usage of MTRRs with SEV guests. Signed-off-by: Richard Relph

MdePkg: Remove ARM32 Support from BaseLib

2025-09-25T22:04:10+00:00

edk2 is dropping support for the ARM32 architecture. This commit removes ARM32 code from BaseLib. Signed-off-by: Oliver Smith-Denny

MdePkg/Library/BaseLib: Remove __chkstk() from BaseLib

2025-09-19T07:14:26+00:00

Remove workaround for GCC compilers that is no longer required. Keeping this implementation of __chkstk() generates duplicate symbol build failures with Windows/CLANGPDB builds host-based unit test builds. Signed-off-by: Michael D Kinney

MdePkg: BaseLib: Add UUID-GUID conversion function

2025-06-05T05:01:57+00:00

With interactions between Standalone MM partitions and normal UEFI environment, there is constant need to convert UUID to GUID and back. This change added 2 new interfaces to BaseLib that support such usage. Signed-off-by: Kun Qin

MdePkg: CodeQL Fixes.

2024-11-01T04:30:39+00:00

Includes changes across the repo for the following CodeQL rules: - cpp/comparison-with-wider-type - cpp/overflow-buffer - cpp/redundant-null-check-param - cpp/uselesstest Co-authored-by: Taylor Beebe Co-authored-by: kenlautner <85201046+kenlautner@users.noreply.github.com> Signed-off-by: Aaron Pop

MdePkg/BaseLib: Add NULL version Tdx functions for other architectures

2024-09-09T02:57:02+00:00

Currently, the NULL version Tdx functions are only built for Ia32. In BaseLib, the others architectures also need such NULL version Tdx functions. Cc: Liming Gao Cc: Michael D Kinney Cc: Zhiguang Liu Cc: Gerd Hoffmann Cc: Jiewen Yao Cc: Min Xu Signed-off-by: Ceping Sun

MdePkg: Rename the LoongArch CSR 0x20 register

2024-08-30T19:54:01+00:00

Added a new name for CSR 0x20 because LoongArch SPEC has adjustd the CSR 0x20 register name. Ref: LoongArch Reference Manual Vol 1, Seciton 7.1. https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html#control-and-status-registers Cc: Michael D Kinney Cc: Liming Gao Cc: Zhiguang Liu Signed-off-by: Chao Li

MdePkg/BaseLib: Add CRC16 CCITT False Implementation.

2024-08-06T05:18:13+00:00

This change is added to incorporate basic implementation for CRC16-CCITT-FALSE algorithm. This function is useful for providing CRC16 value used in other data structures that requires CRC16 value that complies with JEDEC SPD requirements, i.e. BDAT table. The lookup table is inherited from `https://crccalc.com/` and the result values are also compared against this site. Signed-off-by: Aaron Pop

MdePkg/BaseLib: AARCH64: Add ArmReadIdAA64Isar0Reg()

2024-08-01T13:41:01+00:00

To enable AARCH64 native instruction support for Openssl, some interfaces must be implemented. OPENSSL_cpuid_setup() allows to probe the supported features of the platform. Add ArmReadIdAA64Isar0Reg() to read the AA64Isar0, containing Arm64 instruction capabilities. A similar ArmReadIdAA64Isar0() function is available in the ArmPkg, but the CryptoPkg where OPENSSL_cpuid_setup will reside cannot rely on the ArmPkg. Signed-off-by: Pierre Gondois

MdePkg/BaseLib: AARCH64: Add ArmReadCntPctReg()

2024-08-01T13:41:01+00:00

To enable AARCH64 native instruction support for Openssl, some interfaces must be implemented. OPENSSL_rdtsc() requests an access to a counter to get some non-trusted entropy. Add ArmReadCntPctReg() to read system count. A similar ArmReadCntPct() function is available in the ArmPkg, but the CryptoPkg where OPENSSL_rdtsc will reside cannot rely on the ArmPkg. Signed-off-by: Pierre Gondois