Thanks for sending out the patchset! I may be missing it, where is the StMM FF-A partition manifest as part of this? I see where it gets parsed, but not the actual information. My understanding, which may be flawed, is that there should be a separate file defining the StMM manifest. Is that going in TF-A?
This seems mostly complete, I agree with Kun that extending support to MmCommunicatePei would seem to be necessary. Thanks, Oliver On 7/11/2023 7:36 AM, Nishant Sharma wrote:
V1 : Following patchset add the support of ARM Firmware Framework protocol to MM communication. Following chagnes are made to enable the support 1> Changed the FFA enable flag(PcdFfaEnable) to integer to enable it use in assembly. 2> Add the support to Reserved SP stack space and program in startup code. 3> Added ABI for enabling FFA protocol 4> Added conditional support in Standalone MM to parse DTB and populated configuration info required for FFA. 5> Added FFA support in MmCommunicationDxe module. Patches are pushed to https://github.com/nissha03/edk2/tree/ArmFirmwareFramework ARM Firmware Framework Protocol: https://developer.arm.com/documentation/den0077/latest/ Achin Gupta (19): StandaloneMmPkg: Allocate and initialise SP stack from internal memory StandaloneMmPkg: Include libfdt in the StMM ArmPkg: Add data structures to receive FF-A boot information ArmPkg/ArmFfaSvc: Add helper macros and fids ArmPkg: Add support for FFA_MEM_PERM_GET/SET ABIs StandaloneMmPkg: define new data structure to stage FF-A boot information StandaloneMmPkg: Add backwards compatible support to detect FF-A v1.1 StandaloneMmPkg: parse SP manifest and populate new boot information StandaloneMmPkg: Populate Hoblist for SP init from StMM boot information StandaloneMmPkg: Skip zero sized sections while tweaking page permissions StandaloneMmPkg: Add global check for FF-A abis ArmPkg: Bump the StMM SP FF-A minor version to 1 ArmPkg/MmCommunicationDxe: Introduce FF-A version check ArmPkg/MmCommunicationDxe: Add support for obtaining FF-A partition ID ArmPkg/MmCommunicationDxe: Register FF-A RX/TX buffers ArmPkg/MmCommunicationDxe: Unmap FF-A RX/TX buffers during ExitBootServices ArmPkg/MmCommunicationDxe: Discover the StMM SP ArmPkg/MmCommunicationDxe: Use the FF-A transport for MM requests StandaloneMmPkg: Add support for MM requests as FF-A direct messages Nishant Sharma (1): ArmPkg: Change PcdFfaEnable flag datatype ArmPkg/ArmPkg.dec | 14 +- StandaloneMmPkg/StandaloneMmPkg.dsc | 3 +- ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.inf | 3 + ArmPkg/Library/StandaloneMmMmuLib/ArmMmuStandaloneMmLib.inf | 4 +- StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/StandaloneMmCoreEntryPoint.inf | 8 +- ArmPkg/Drivers/MmCommunicationDxe/MmCommunicate.h | 7 +- ArmPkg/Include/IndustryStandard/ArmFfaSvc.h | 133 ++++- StandaloneMmPkg/Include/Library/Arm/StandaloneMmCoreEntryPoint.h | 39 +- ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.c | 332 ++++++++++-- ArmPkg/Library/StandaloneMmMmuLib/ArmMmuStandaloneMmLib.c | 140 ++++- StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/Arm/CreateHobList.c | 186 ++++++- StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/Arm/SetPermissions.c | 18 +- StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/Arm/StandaloneMmCoreEntryPoint.c | 561 +++++++++++++++++--- StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/Arm/AArch64/ModuleEntryPoint.S | 68 +++ 14 files changed, 1367 insertions(+), 149 deletions(-) create mode 100644 StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/Arm/AArch64/ModuleEntryPoint.S
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