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StandaloneMmPkg: Allow sending FFA Direct Request message to StandaloneMm 

Allow passing of a request to StandaloneMm Core through the Firmware
Framework(FF-A) using FFA_MSG_SEND_DIRECT_REQ method. This method is
used as a mechanism for requesting some service from StandaloneMm.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Ilias Apalodimas 2021-02-19 12:06:07 +05:30 committed by mergify[bot]
parent 1262c02677
commit 68e5ecc4d2
1 changed files with 3 additions and 1 deletions
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4
StandaloneMmPkg/Drivers/StandaloneMmCpu/AArch64/EventHandle.c
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@ -22,6 +22,7 @@
#include <Guid/ZeroGuid.h>
#include <Guid/MmramMemoryReserve.h>
#include <IndustryStandard/ArmFfaSvc.h>
#include <IndustryStandard/ArmStdSmc.h>
#include "StandaloneMmCpu.h"
@ -91,7 +92,8 @@ PiMmStandaloneArmTfCpuDriverEntry (
// receipt of a synchronous MM request. Use the Event ID to distinguish
// between synchronous and asynchronous events.
//
if (ARM_SMC_ID_MM_COMMUNICATE_AARCH64 != EventId) {
if ((ARM_SMC_ID_MM_COMMUNICATE_AARCH64 != EventId) &&
(ARM_SVC_ID_FFA_MSG_SEND_DIRECT_REQ_AARCH64 != EventId)) {
DEBUG ((DEBUG_INFO, "UnRecognized Event - 0x%x\n", EventId));
return EFI_INVALID_PARAMETER;
}