Tianocore/edk2.git/MdePkg/Include/Register, branch dependabot/github_actions/actions/setup-python-7

MdePkg/Svsm: add SVSM_UEFI_MM_PROTOCOL

2026-06-12T12:27:27+00:00

The SVSM_UEFI_MM_PROTOCOL protocol allows to send MM communication buffers to the SVSM (instead of edk2 MM code) and let SVSM manage EFI variables that way. This patch adds protocol and call numbers to svsm include file. Signed-off-by: Gerd Hoffmann

MdePkg: Fix Spelling Errors in Comments

2026-05-08T02:15:34+00:00

This fixes all non-breaking spelling errors in MdePkg. Signed-off-by: Oliver Smith-Denny

MdePkg: Make X64 Page Table Definitions Public

2026-03-18T00:28:27+00:00

Currently, X64 page table structure definitions live in a private header in UefiCpuPkg's CpuPageTableLib. This moves them to a new CpuPageTable.h header file in MdePkg/Register/X86, so that other code can use these standard architectural definitions. The main use case is for test code to consume these definitions to run memory protection tests. Signed-off-by: Oliver Smith-Denny

MdePkg: Add AMD CPUID Extended Topology definition

2026-03-11T09:14:23+00:00

This patch is to add the AMD CPUID Extended Topology definition for EAX/EBX/ECX/EDX from the AMD64 Architecture Programmer's Manual Spec. Signed-off-by: Jiaxin Wu

MdePkg: Replace include guards with #pragma once

2026-02-23T21:01:28+00:00

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

MdePkg: Replace non-ASCII characters with ASCII

2026-02-02T03:24:17+00:00

Replacing the non-ASCII characters with ASCII characters fixes build failures onWindows systems using non-English locales. These characters trigger MSVC warningC4819 (“file contains a character that cannot be represented in the current codepage”), which becomes an error when /WX is enabled. Cc: Sachin Ganesh Signed-off-by: dhiineshm

MdePkg: Add the COHERENCY_SFW_NO CPUID bit field

2025-09-09T17:43:31+00:00

Update the CPUID 0x8000001F EBX definition to add the COHERENCY_SFW_NO bit field. The COHERENCY_SFW_NO bit is used to indicate that the SEV-SNP cache coherency mitigation is not needed. Signed-off-by: Tom Lendacky

MdePkg/AmdSev: Add SVSM protocol vTPM call numbers

2025-03-16T19:21:44+00:00

Add call numbers for the SVSM vTPM protocol, as defined in the "Secure VM Service Module for SEV-SNP Guests" Publication # 58019 Revision: 1.00 Signed-off-by: Oliver Steffen

MdePkg/AmdSev: Add SVSM protocol call numbers

2025-03-16T19:21:44+00:00

Add protocol and call numbers as defined in the "Secure VM Service Module for SEV-SNP Guests" Publication # 58019 Revision: 1.00 https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/specifications/58019.pdf Signed-off-by: Oliver Steffen

MdePkg: Added definition of AMD specific public MSRs

2024-11-12T01:07:12+00:00

Added definition of AMD specific public MSRs: 1. SMBASE 2. SMM_ADDR 3. SMM_MASK Signed-off-by: Kun Qin