Tianocore/edk2.git/OvmfPkg/Include/Library, branch dependabot/github_actions/actions/github-script-8

OvmfPkg/igvm: add PlatformIgvmVpCount

2025-09-29T14:28:23+00:00

Add support for getting the cpu count via IGVM parameter. Signed-off-by: Gerd Hoffmann

OvmfPkg/igvm: handle igvm data hobs

2025-09-29T14:28:23+00:00

In case HOBs are present in the IGVM data hob area register the memory regions as bootservice data to avoid them being overwritten. Also copy over the HOBs so they can easily be found later using standard HobLib functions. Signed-off-by: Gerd Hoffmann

OvmfPkg/igvm: add igvm memory map support.

2025-09-29T14:28:23+00:00

In case a IGVM memory map is present in the parameter area use that when detecting guest memory. Signed-off-by: Gerd Hoffmann

OvmfPkg/MemEncryptSevLib: Check if SEV-SNP coherency mitigitation is needed

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

CPUID bit Fn8000001F_EBX[31] defines the COHERNECY_SFW_NO CPUID bit that, when set, indicates that the software mitigation for this vulnerability is not needed. Add support to check for this CPUID bit and avoid the mitigation if set. Signed-off-by: Tom Lendacky

OvmfPkg/PlatformPei: record "etc/msr_feature_control" presence explicitly

2025-07-23T10:10:11+00:00

A zero "FeatureControlValue" currently means "no feature control, or feature control with zero value". Distinguish both cases by explicitly recording the presence of the "etc/msr_feature_control" fw_cfg file. This will be helpful later in this series, when we won't want to touch fw_cfg again, but still know if "etc/msr_feature_control" was read OK. Signed-off-by: Laszlo Ersek

OvmfPkg/VirtNorFlash: Move low level NOR flash functions into library

2025-06-25T04:23:40+00:00

This patch refactors low level NOR flash functions into a dedicated library to enable reuse, particularly for supporting the firmware upgrade feature. Signed-off-by: Tuan Phan

OvmfPkg: Add OVMF Memory Debug Logging MemDebugLogLib library

2025-06-13T22:19:39+00:00

Add the Memory Debug Logging feature MemDebugLogLib library which provides the key MemDebugLogWrite() function. Several versions (i.e. SEC, PEIM, DXE, runtime) of the function are included to provide the proper method to write the debug messages to the memory debug log buffer. The library also provides the core functions to maintain the circular memory debug log buffer. Cc: Gerd Hoffmann Cc: Ard Biesheuvel Cc: Jiewen Yao Signed-off-by: Aaron Young

OvmfPkg: Refactor QEMU_FW_CFG_CACHE_WORK_AREA

2025-03-20T02:37:31+00:00

Move QemuFwCfgSupported and QemuFwCfgDmaSupported to the struct since they will be used as global variables in the DXE phase along with QEMU_FW_CFG_CACHE_WORK_AREA. Additionally, change its name to QEMU_FW_CFG_WORK_AREA. Cc: Erdem Aktas Cc: Jiewen Yao Cc: Min Xu Cc: Gerd Hoffmann Cc: Elena Reshetova Signed-off-by: Ceping Sun

OvmfPkg/QemuFwCfgLib: Add FwCfg cache interface

2025-03-20T02:37:31+00:00

Since TDVF needs to cache and measure FwCfg, it is required to add an API to support cache with optional measurement and add some internal interfaces to support cache in QemuFwCfgLib. The new API is listed below: QemuFwCfgInitCache() The new Internal interfaces are listed below: InternalQemuFwCfgCacheReadBytes() InternalQemuFwCfgCacheSelectItem() InternalQemuFwCfgCacheGetWorkArea() InternalQemuFwCfgCacheResetWorkArea() InternalQemuFwCfgItemCached() InternalQemuFwCfgCacheReading() InternalQemuFwCfgInitCache() InternalQemuFwCfgCheckOvmfWorkArea() Cc: Erdem Aktas Cc: Jiewen Yao Cc: Min Xu Cc: Gerd Hoffmann Cc: Elena Reshetova Signed-off-by: Min Xu Signed-off-by: Ceping Sun

OvmfPkg/PlatformInitLib.h: Add QEMU_FW_CFG_CACHE_WORK_AREA

2025-03-20T02:37:31+00:00

Add QEMU_FW_CFG_CACHE_WORK_AREA in EFI_HOB_PLATFORM_INFO to support reading from cache in QemuFwCfgLib. Cc: Erdem Aktas Cc: Jiewen Yao Cc: Min Xu Cc: Gerd Hoffmann Cc: Elena Reshetova Signed-off-by: Ceping Sun