Tianocore/edk2.git/MdeModulePkg/Bus, branch edk2_master

MdeModulePkg/PciBusDxe: Fix typo in Buffer parameter description

2026-01-23T10:46:37+00:00

The comment for the Buffer parameter incorrectly said "then no the size" instead of "then the size". This patch fixes the typo only; no functional changes. Signed-off-by: Dongyan Qian

MdeModulePkg: Fix overflow in PciAllocateBusNumber

2026-01-14T05:22:38+00:00

When StartBusNumber is 0xFF NextNumber would overflow and wrap back to 0. This will be bypass check NextNumber > MaxNumberInRange as a result PCI enumeration will continue instead of breaking due to lack of resources. Signed-off-by: Arkadiusz Filipowski

MdeModulePkg/UfsPassThruDxe:Fix Ufs DM Command issue

2025-12-24T06:41:24+00:00

After Execute UFS SCSI Commands, the Trd->PRDTL is dirty. It will cause issue when next UFS DM Command is executed. According to UFSHCI Spec, for UFS DeviceManagement function Trd->PRDTL must be set to Zero. Signed-off-by: Black.Li

MdeModulePkg/PciBusDxe: Fix boot hang introduced by ff3c1ad

2025-12-15T08:11:30+00:00

The changes introduced by ff3c1ad which made two calls to ProcessOpRomImage() resulted a platform where single OpRom present, the same image to be loaded and started. Prevent loading and starting same image twice. Signed-off-by: Khalid Ali Suggested-by: Ard Biesheuvel

MdeModulePkg: Load the native Option ROM image if the native one exists

2025-12-10T09:53:49+00:00

Issue:https://github.com/tianocore/edk2/issues/11800 If there are multiple Option ROM images existed, current code will load the first image that the emulator supports. Usually, x86 ROM image is the first one and non-x86 ROM image is behind x86 ROM image. When the emulator is introduced, x86 ROM image instead of native image is loaded on non-x86 platforms. This patch introduces a mechanism to prioritize the loading of native images. Firstly, search the native image. If the native one is found, just finish the process since the goal is reached. Otherwise, search the foriegn images that the platform may support. Signed-off-by: Qihang Gao Signed-off-by: Chao Li Suggested-by: Ard Biesheuvel Tested-by: Chen Zhang Cc: Dongyan Qian

MdeModulePkg: SpiNorFlash update FillWriteBuffer headers.

2025-11-24T09:07:21+00:00

The function headers for FillWriteBuffer have become out of date with the implementation. Update the function headers to more clearly define the interface for recent changes. Signed-off-by: Aaron Pop

MdeModulePkg/Bus: Remove ScsiPassThruProtocolGuid

2025-11-23T18:40:59+00:00

The legacy ScsiPassThruProtocol has been removed as per the UEFI 2.10A specification. This commit, removes references to ScsiPassThruProtocol and transitions the implementation to only use ExtScsiPassThruProtocol, which provides enhanced support for device enumeration, target/LUN discovery, and broader SCSI compatibility. Cc: Sachin Ganesh Signed-off-by: Gowtham M

MdeModulePkg: Define PCD for SATA ready for operation timeout.

2025-11-22T17:01:23+00:00

Some large capacity SATA HDD requires more time from power on to ready state. Making timeout value configurable by defining PCD PcdSataDeviceReadyTimeout will allow platform.dsc to serve these devices. Defining gEfiMdeModulePkgTokenSpaceGuid.PcdSataDeviceReadyTimeout with default value 16 Seconds in MdeModulePkg.dec. Signed-off-by: gapandya

MdeModulePkg/Scsi:Change Index and MaxRetry from UINT8 to UINTN

2025-11-22T07:16:33+00:00

Change Index and MaxRetry to UINTN in ScsiDiskInquiryDevice(). Signed-off-by: Revathy

MdeModulePkg: Remove extraneous parentheses

2025-11-22T01:43:26+00:00

XCODE5 toolchain finds these, with errors such as: PxeFunction.c:763:27: error: equality comparison with extraneous parentheses Signed-off-by: Mike Beaton