Hi Sughosh, Pushed as a2b5ea38a6fb..68e5ecc4d208 Regards, Sami Mujawar From: Sughosh Ganu Sent: 22 February 2021 03:19 PM To: Ard Biesheuvel ; Sami Mujawar Cc: devel@edk2.groups.io; Ilias Apalodimas ; Laszlo Ersek ; Leif Lindholm ; michael.d.kinney@intel.com; Jiewen Yao ; Achin Gupta Subject: Re: [PATCH v5 00/14] Add support for using FF-A calls hi Sami, On Mon, 22 Feb 2021 at 19:40, Ard Biesheuvel > wrote: On Fri, 19 Feb 2021 at 07:36, Sughosh Ganu > wrote: > > The following patch series adds support for using the Firmware > Framework(FF-A) as a transport mechanism for requesting services from > the Secure Partition Manager(SPM). This is done through a Pcd which > can be used to enable the FF-A mechanism or to use the earlier used > SVC calls. > > The patches have been pushed to my github repository[1] > > Ran the CI tests through the github draft pull request, and all the CI > test pass. Ran the PatchCheck script, with no errors. > > Changes since V4: > * Define all variable Pcd's under the [Pcd] section instead of > [FixedPcd], as suggested by Liming Gao > > Changes since V3: > * Put the PcdFfaEnable under the PcdsFeatureFlag.AARCH64 section to > avoid build breakage for the X64 StandaloneMm builds. > * Put the macro definitions for the SPM major and minor versions in a > separate patch, as suggested by Sami. > * Separated out the declaration of the SPM major and minor version > macros in the earlier patch as was suggested by Sami. > * Put the macro definitions for the SPM major and minor versions with > FF-A support in a separate patch, as suggested by Sami. > * Declare the PcdFfaEnable Pcd Feature flag under FeaturePcd.AARCH64 > to avoid build break for the X64 build of StandaloneMm. > * Change the patch header to have the ArmPkg prefix instead of > StandaloneMmMmuLib as suggested by Sami. > > Changes since V2: > * Added a STATIC storage class specifier for mSpmMajorVer and > mSpmMinorVer variables > * Added a STATIC storage class specifier for mSpmMajorVerFfa and > mSpmMinorVerFfa variables > * Add braces for if/else statements > * Add a check for EFI_NOT_FOUND as a possible return value from > LocateStandaloneMmCorePeCoffData in _ModuleEntryPoint function > * Check for the return value in Arg0 after the Direct Request call to > handle errors returned > * Put a comment to reflect the fact that FFA_INTERRUPT and FFA_SUCCESS > response won't be expected in return to a Direct Request call to get > the memory attributes > * Check for the return value in Arg0 after the Direct Request call to > handle errors returned > * Put a comment to reflect the fact that FFA_INTERRUPT and FFA_SUCCESS > response won't be expected in return to a Direct Request call to set > the memory attributes > > Changes since V1: > Handled review comments from Sami Mujawar > > [1] - https://github.com/sughoshg/edk2/tree/implement_ffa_svc_optional_v5 > > > Achin Gupta (7): > ArmPkg/IndustryStandard: Add barebones FF-A header > ArmPkg/ArmSvcLib: Return x4-x7 in output parameters > StandaloneMmPkg: Use FF-A header file in Standalone MM Core entry > point > StandaloneMmPkg: Add option to use FF-A calls for communication with > SPM > ArmPkg: Use FF-A header file in Standalone MM Arm MMU library > ArmPkg: Allow FF-A calls to get memory region's attributes > ArmPkg: Allow FF-A calls to set memory region's attributes > > Ilias Apalodimas (2): > MdeModulePkg/VariableStandaloneMm: Set PcdFlashNvStorageVariableBase > to Pcd > StandaloneMmPkg: Allow sending FFA Direct Request message to > StandaloneMm > > Sughosh Ganu (5): > ArmPkg: Introduce support for PcdFfaEnable > ArmPkg: Add macros for SPM version > StandaloneMmPkg: Use macros for SPM version check > ArmPkg: Add macros for SPM version with FF-A support enabled > StandaloneMmPkg: Add option to use FF-A calls for getting SPM version > Unfortunately, I won't be able to do a detailed review of this series, but I have discussed these patches before with Sami off-list, and based on that and on my earlier review of v3: Acked-by: Ard Biesheuvel > for the series, where necessary. Can you please merge this patch series for the stable tag edk2-stable202102. I have created a bugzilla ticket for this feature addition[1]. Please let me know if anything else is needed. Thanks. -sughosh [1] - https://bugzilla.tianocore.org/show_bug.cgi?id=3230 IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.