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* ArmPkg/MmCommunication: add helper function converting smc returnlevi.yun2025-01-171-23/+30
| | | | | | Add helper function converting smc return value to efi status. Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
* AmrPkg/MmCommunication: move Mmcommunicate.h to common includelevi.yun2025-01-173-25/+1
| | | | | | | MmCommunication.h is used in MmCommunicationDxe/Pei both. Move this header file to common include. Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
* ArmPkg/MmCommunicationDxe: Mmcommunication via FF-ALevi Yun2025-01-172-52/+308
| | | | | | Support Mmcommunication protocol via FF-A with StandaloneMm. Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
* ArmPkg: MmCommunicationDxe: Update MM communicate `MessageLength` checkKun Qin2022-01-271-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3751 Current MM communicate routine from ArmPkg would conduct few checks prior to proceeding with SMC calls. However, the inspection step is different from PI specification. This patch updated MM communicate input argument inspection routine to assure that "if the `MessageLength` is zero, or too large for the MM implementation to manage, the MM implementation must update the `MessageLength` to reflect the size of the `Data` buffer that it can tolerate", as described by `EFI_MM_COMMUNICATION_PROTOCOL.Communicate()` section in PI specification. Cc: Leif Lindholm <leif@nuviainc.com> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Bret Barkelew <Bret.Barkelew@microsoft.com> Cc: Michael Kubacki <michael.kubacki@microsoft.com> Cc: Sami Mujawar <sami.mujawar@arm.com> Signed-off-by: Kun Qin <kuqin12@gmail.com> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
* ArmPkg: MmCommunicationDxe: Update MM communicate `CommSize` checkKun Qin2022-01-271-7/+12
| | | | | | | | | | | | | | | | | | | | | | | REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3751 Current MM communicate routine from ArmPkg would conduct few checks prior to proceeding with SMC calls. However, the inspection step is different from PI specification. This patch updated MM communicate input argument inspection routine to assure `CommSize` represents "the size of the data buffer being passed in" instead of the size of the data being used from data buffer, as described by section `EFI_MM_COMMUNICATION2_PROTOCOL.Communicate()` in PI specification. Cc: Leif Lindholm <leif@nuviainc.com> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Bret Barkelew <Bret.Barkelew@microsoft.com> Cc: Michael Kubacki <michael.kubacki@microsoft.com> Cc: Sami Mujawar <sami.mujawar@arm.com> Signed-off-by: Kun Qin <kuqin12@gmail.com> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
* ArmPkg: MmCommunicationDxe: Update MM communicate `CommBuffer**` checksKun Qin2022-01-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3751 Current MM communicate routine from ArmPkg would conduct few checks prior to proceeding with SMC calls. However, the inspection step is different from PI specification. This patch updated MM communicate input argument inspection routine to assure that return code `EFI_INVALID_PARAMETER` represents "the `CommBuffer**` parameters do not refer to the same location in memory", as described by `EFI_MM_COMMUNICATION2_PROTOCOL.Communicate()` section in PI specification. Cc: Leif Lindholm <leif@nuviainc.com> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Bret Barkelew <Bret.Barkelew@microsoft.com> Cc: Michael Kubacki <michael.kubacki@microsoft.com> Cc: Sami Mujawar <sami.mujawar@arm.com> Signed-off-by: Kun Qin <kuqin12@gmail.com> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
* ArmPkg: MmCommunicationDxe: MM communicate function argument attributesKun Qin2022-01-271-6/+7
| | | | | | | | | | | | | | | | | | Current MM communicate2 function from ArmPkg described input arguments `CommBufferPhysical`, `CommBufferVirtual` and `CommSize` as input only, which mismatches with the "input and output type" as in PI specification. This change updated function descriptions of MM communite2 to match input argument types. Cc: Leif Lindholm <leif@nuviainc.com> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Bret Barkelew <Bret.Barkelew@microsoft.com> Cc: Michael Kubacki <michael.kubacki@microsoft.com> Cc: Sami Mujawar <sami.mujawar@arm.com> Signed-off-by: Kun Qin <kuqin12@gmail.com> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
* ArmPkg: Apply uncrustify changesMichael Kubacki2021-12-072-88/+122
| | | | | | | | | | | | REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the ArmPkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Andrew Fish <afish@apple.com>
* ArmPkg: Fix Ecc error 6001 in MmCommunicationDxePierre Gondois2021-04-151-4/+4
| | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following Ecc reported error: All include file contents should be guarded by a #ifndef statement. This patch replaces a "#if !defined [...]" statement by a "#ifndef [...]" statement, preventing Ecc to throw an error. Edk2 coding standard stating that: "Names starting with one or two underscores, such as _MACRO_GUARD_FILE_NAME_H_, must not be used." the include guard is also updated. Ref: https://edk2-docs.gitbook.io/edk-ii-c-coding-standards-specification/ 5_source_files/53_include_files# 5-3-5-all-include-file-contents-must-be-protected-by-a-include-guard Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
* ArmPkg: Fix Ecc error 10014 in MmCommunicationDxePierre Gondois2021-04-151-1/+2
| | | | | | | | | | | | | | This patch fixes the following Ecc reported error: No used module files found The source files [ArmPkg/Drivers/MmCommunicationDxe/MmCommunicate.h] is existing in module ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.inf but is not described in the INF file. Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
* ArmPkg: Fix Ecc error 3002 in MmCommunicationDxePierre Gondois2021-01-061-2/+2
| | | | | | | | | This patch fixes the following Ecc reported error: Non-Boolean comparisons should use a compare operator (==, !=, >, < >=, <=) Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
* ArmPkg/MmCommunicationDxe: expose MM Communicate 2 protocolArd Biesheuvel2020-05-122-48/+43
| | | | | | | | | | | | | Implement the new MmCommunication2 protocol which supports the use of standalone MM at runtime inside an address space that has been virtually remapped by the OS. Note that the implementation of the old MM Communicate protocol is removed: it never worked correctly so there is no point in keeping it. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@arm.com> Reviewed-by: Leif Lindholm <leif@nuviainc.com> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
* ArmPkg/MmCommunicationDxe: fix logic bug in DXE driver entrypointArd Biesheuvel2020-03-041-0/+8
| | | | | | | | | | | | | | | Commit 2fe25a74d6fee3c2 ("ArmPkg/MmCommunicationDxe: relay architected PI events to MM context") update the ARM specific standalone MM client driver to register for certain events in the entrypoint code, but did so in a way that makes the entrypoint always return with an error. Instead, return EFI_SUCCESS if registering for those events succeeds, and back out the registrations that did succeed if one fails, and return an error. Fixes: 2fe25a74d6fee3c2 ("ArmPkg/MmCommunicationDxe: relay architected PI events to MM context") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif@nuviainc.com>
* ArmPkg/MmCommunicationDxe: relay architected PI events to MM contextArd Biesheuvel2019-12-112-2/+50
| | | | | | | | | | PI defines a few architected events that have significance in the MM context as well as in the non-secure DXE context. So register notify handlers for these events, and relay them into the standalone MM world. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Achin Gupta <achin.gupta@arm.com>
* ArmPkg: Replace BSD License with BSD+Patent LicenseMichael D Kinney2019-04-093-21/+3
| | | | | | | | | | | | | | | | | | | | https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
* ArmPkg/Drivers: Add EFI_MM_COMMUNICATION_PROTOCOL DXE driver.Achin Gupta2018-11-273-0/+456
PI v1.5 Specification Volume 4 defines Management Mode Core Interface and defines EFI_MM_COMMUNICATION_PROTOCOL. This protocol provides a means of communicating between drivers outside of MM and MMI handlers inside of MM. This patch implements the EFI_MM_COMMUNICATION_PROTOCOL DXE runtime driver for AARCH64 platforms. It uses SMCs allocated from the standard SMC range defined in DEN0060A_ARM_MM_Interface_Specification.pdf to communicate with the standalone MM environment in the secure world. This patch also adds the MM Communication driver (.inf) file to define entry point for this driver and other compile related information the driver needs. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Sughosh Ganu <sughosh.ganu@arm.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
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