Tianocore/edk2.git/MdeModulePkg/Library/ArmFfaLib, branch master

MdePkg,MdeModulePkg: ArmFfaLib: Expand to include first 4 registers

2026-07-20T19:13:15+00:00

The direct message arguments stripped off the header, making the underlying FF-A function interface to lose information when it comes to certain return code, i.e. FFA_YIELD and FFA_INTERRUPT. This change adds back the header field for this purpose so that the callers can decide how to act on the corresponding return codes. It then populates the header field for this purpose in FFA direct message functions so that the callers can decide how to act on the corresponding return codes. Continuous-integration-options: PatchCheck.ignore-multi-package Signed-off-by: Kun Qin

MdeModulePkg/ArmFfaLib: Use EFI_PAGES_TO_SIZE

2026-07-08T05:02:11+00:00

Replace manual page-size multiplication with EFI_PAGES_TO_SIZE in the ArmFfaLib sources. This commit mimics 3457388 and is generated by the following coccinelle scipt: ```smpl @pages_to_size@ expression PAGE_COUNT; @@ - PcdGet64 (PAGE_COUNT) * EFI_PAGE_SIZE + EFI_PAGES_TO_SIZE (PcdGet64 (PAGE_COUNT)) ``` Tested: - stuart_ci_build -c .pytool/CISettings.py -p MdeModulePkg -a AARCH64 -t DEBUG TOOL_CHAIN_TAG=GCC - stuart_ci_build -c .pytool/CISettings.py -p MdeModulePkg -a AARCH64 -t RELEASE,NO-TARGET TOOL_CHAIN_TAG=GCC Signed-off-by: Mingjie Shen

MdeModulePkg/ArmFfaLib: return error when CurrentVersion is NULL

2026-05-29T18:44:57+00:00

Output parameter CurrentVersion of ArmFfaLibGetVersion() is not optional parameter. That means it should return error when CurrentVersion is NULL. Signed-off-by: Yeoreum Yun

MdeModulePkg/ArmFfaLib: Fix VM ID handling for RX release and RXTX unmap

2026-05-28T23:51:09+00:00

According to the FFA specification, when FFA_RX_RELEASE or FFA_RXTX_UNMAP is invoked from UEFI as a non-secure virtual instance, the w1 register must be zero (MBZ). Supplying a non-zero value causes the SPMC to return FFA_INVALID_PARAMETER. When these interfaces are invoked from UEFI as a non-secure physical instance, FFA_ID_GET always returns a VM ID of zero. Therefore, providing a non-zero VM ID in this context is unnecessary and may be invalid. Update ArmFfaLib to always set w1 (VM ID / partition ID) to zero when invoking FFA_RX_RELEASE and FFA_RXTX_UNMAP, ensuring compliance with the FFA specification. Signed-off-by: Shenghu Liu

ArmPkg,MdePkg,MdeModulePkg: change ArmFfaLibGetVersion() with whole version

2026-04-28T17:19:44+00:00

Current ArmFfaLibGetVersion()'s arguments receive two arguments -- major version and minor version. However, This gives some impression treating major and minor version of the ABI as two unrelated 16-bit variables as opposed to the upper and lower 16-bits of a 32-bit version variable. Therefore, change the arguments with whole version and let user to get major/minor version via ARM_FFA_MAJOR/MINOR_VERSION_GET macros. Also, add some useful helper to check version compatibility and mimimum require ABI version. Continuous-integration-options: PatchCheck.ignore-multi-package Suggested-by: Leif Lindholm Signed-off-by: Yeoreum Yun

MdeModulePkg/Library: ArmFfaLib: add mapping ARM_FFA_RET_RETRY

2026-04-23T08:22:22+00:00

There is no mapping ARM_FFA_RET_RETRY with EFI_STATUS but it falls to EFI_UNSUPPORTED. Map ARM_FFA_RET_RETRY with EFI_TIMEOUT so that don't make it fall to EFI_UNSUPPORTED. Signed-off-by: Yeoreum Yun

MdeModulePkg: Add library class SafeIntLib where ArmFfaCommon.c is used

2026-03-09T03:35:31+00:00

Required by implementation of ArmFfaLibYield. Fixes: 6479778e6b3890f65580bfbd50426046533b85a8 Signed-off-by: Mike Beaton

MdePkg,MdeModulePkg: Add FFA_YIELD command

2026-03-07T09:34:09+00:00

Add the FF-A YIELD command to the FF-A library. Continuous-integration-options: PatchCheck.ignore-multi-package Signed-off-by: Raymond Diaz

MdeModulePkg: Add FFA_NS_RES_INFO_GET to ArmFfaCommon

2026-03-04T01:22:07+00:00

Add FFA_NS_RES_INFO_GET implementation to ArmFfaCommon Signed-off-by: Raymond Diaz

MdeModulePkg: 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