From: "PierreGondois" <pierre.gondois@arm.com>
To: devel@edk2.groups.io
Cc: Sami Mujawar <sami.mujawar@arm.com>,
Leif Lindholm <quic_llindhol@quicinc.com>,
Ard Biesheuvel <ardb+tianocore@kernel.org>,
Rebecca Cran <rebecca@bsdio.com>,
Michael D Kinney <michael.d.kinney@intel.com>,
Liming Gao <gaoliming@byosoft.com.cn>,
Jiewen Yao <jiewen.yao@intel.com>,
Jian J Wang <jian.j.wang@intel.com>
Subject: [PATCH v6 03/19] ArmPkg/ArmMonitorLib: Add ArmMonitorLib
Date: Fri, 30 Sep 2022 18:05:16 +0200 [thread overview]
Message-ID: <20220930160532.2921381-4-Pierre.Gondois@arm.com> (raw)
In-Reply-To: <20220930160532.2921381-1-Pierre.Gondois@arm.com>
From: Pierre Gondois <Pierre.Gondois@arm.com>
The ArmMonitorLib provides an abstract interface to issue
an HyperVisor Call (HVC) or System Monitor Call (SMC) depending
on the default conduit.
The PcdMonitorConduitHvc PCD allows to select the default conduit.
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
---
ArmPkg/ArmPkg.dsc | 1 +
ArmPkg/Library/ArmMonitorLib/ArmMonitorLib.c | 34 +++++++++++++++++++
.../Library/ArmMonitorLib/ArmMonitorLib.inf | 29 ++++++++++++++++
3 files changed, 64 insertions(+)
create mode 100644 ArmPkg/Library/ArmMonitorLib/ArmMonitorLib.c
create mode 100644 ArmPkg/Library/ArmMonitorLib/ArmMonitorLib.inf
diff --git a/ArmPkg/ArmPkg.dsc b/ArmPkg/ArmPkg.dsc
index 59fd8f295d4f..3afd212f472b 100644
--- a/ArmPkg/ArmPkg.dsc
+++ b/ArmPkg/ArmPkg.dsc
@@ -135,6 +135,7 @@ [Components.common]
ArmPkg/Library/ArmSmcLibNull/ArmSmcLibNull.inf
ArmPkg/Library/ArmHvcLib/ArmHvcLib.inf
ArmPkg/Library/ArmSvcLib/ArmSvcLib.inf
+ ArmPkg/Library/ArmMonitorLib/ArmMonitorLib.inf
ArmPkg/Library/OpteeLib/OpteeLib.inf
ArmPkg/Filesystem/SemihostFs/SemihostFs.inf
diff --git a/ArmPkg/Library/ArmMonitorLib/ArmMonitorLib.c b/ArmPkg/Library/ArmMonitorLib/ArmMonitorLib.c
new file mode 100644
index 000000000000..741f5c615744
--- /dev/null
+++ b/ArmPkg/Library/ArmMonitorLib/ArmMonitorLib.c
@@ -0,0 +1,34 @@
+/** @file
+ Arm Monitor Library.
+
+ Copyright (c) 2022, Arm Limited. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/ArmHvcLib.h>
+#include <Library/ArmMonitorLib.h>
+#include <Library/ArmSmcLib.h>
+#include <Library/PcdLib.h>
+
+/** Monitor call.
+
+ An HyperVisor Call (HVC) or System Monitor Call (SMC) will be issued
+ depending on the default conduit. PcdMonitorConduitHvc determines the type
+ of the call: if true, do an HVC.
+
+ @param [in,out] Args Arguments for the HVC/SMC.
+**/
+VOID
+EFIAPI
+ArmMonitorCall (
+ IN OUT ARM_MONITOR_ARGS *Args
+ )
+{
+ if (FeaturePcdGet (PcdMonitorConduitHvc)) {
+ ArmCallHvc ((ARM_HVC_ARGS *)Args);
+ } else {
+ ArmCallSmc ((ARM_SMC_ARGS *)Args);
+ }
+}
diff --git a/ArmPkg/Library/ArmMonitorLib/ArmMonitorLib.inf b/ArmPkg/Library/ArmMonitorLib/ArmMonitorLib.inf
new file mode 100644
index 000000000000..f504cb80f1fc
--- /dev/null
+++ b/ArmPkg/Library/ArmMonitorLib/ArmMonitorLib.inf
@@ -0,0 +1,29 @@
+## @file
+# Arm Monitor Library
+#
+# Copyright (c) 2022, Arm Limited. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+
+[Defines]
+ INF_VERSION = 1.29
+ BASE_NAME = ArmMonitorLib
+ FILE_GUID = F918DACB-FBB8-4CB6-A61D-08E75AF0E7CD
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = ArmMonitorLib
+
+[Sources]
+ ArmMonitorLib.c
+
+[Packages]
+ ArmPkg/ArmPkg.dec
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ ArmHvcLib
+ ArmSmcLib
+
+[Pcd]
+ gArmTokenSpaceGuid.PcdMonitorConduitHvc
--
2.25.1
next prev parent reply other threads:[~2022-09-30 16:05 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-30 16:05 [PATCH v6 00/19] Add Raw algorithm support using Arm FW-TRNG interface PierreGondois
2022-09-30 16:05 ` [PATCH v6 01/19] ArmPkg: PCD to select conduit for monitor calls PierreGondois
2022-09-30 16:05 ` [PATCH v6 02/19] ArmPkg/ArmMonitorLib: Definition for ArmMonitorLib library class PierreGondois
2022-09-30 16:05 ` PierreGondois [this message]
2022-09-30 16:05 ` [PATCH v6 04/19] ArmPkg: Sort HVC/SMC section alphbetically in ArmPkg.dsc PierreGondois
2022-09-30 16:05 ` [PATCH v6 05/19] ArmPkg/ArmHvcLibNull: Add NULL instance of ArmHvcLib PierreGondois
2022-09-30 16:05 ` [PATCH v6 06/19] MdePkg/TrngLib: Definition for TRNG library class interface PierreGondois
2022-09-30 16:05 ` [PATCH v6 07/19] MdePkg/TrngLib: Add NULL instance of TRNG Library PierreGondois
2022-09-30 16:05 ` [PATCH v6 08/19] ArmPkg: Add FID definitions for Firmware TRNG PierreGondois
2022-09-30 16:05 ` [PATCH v6 09/19] ArmPkg/TrngLib: Add Arm Firmware TRNG library PierreGondois
2022-09-30 16:05 ` [PATCH v6 10/19] SecurityPkg/RngDxe: Rename RdRandGenerateEntropy to generic name PierreGondois
2022-09-30 16:05 ` [PATCH v6 11/19] SecurityPkg/RngDxe: Replace Pcd with Sp80090Ctr256Guid PierreGondois
2022-09-30 16:05 ` [PATCH v6 12/19] SecurityPkg/RngDxe: Remove ArchGetSupportedRngAlgorithms() PierreGondois
2022-09-30 16:05 ` [PATCH v6 13/19] SecurityPkg/RngDxe: Documentation/include/parameter cleanup PierreGondois
2022-09-30 16:05 ` [PATCH v6 14/19] SecurityPkg/RngDxe: Check before advertising Cpu Rng algo PierreGondois
2022-09-30 16:05 ` [PATCH v6 15/19] SecurityPkg/RngDxe: Add AArch64 RawAlgorithm support through TrngLib PierreGondois
2022-09-30 16:05 ` [PATCH v6 16/19] SecurityPkg/RngDxe: Add debug warning for NULL PcdCpuRngSupportedAlgorithm PierreGondois
2022-09-30 16:05 ` [PATCH v6 17/19] SecurityPkg/RngDxe: Rename AArch64/RngDxe.c PierreGondois
2022-09-30 16:05 ` [PATCH v6 18/19] SecurityPkg/RngDxe: Add Arm support of RngDxe PierreGondois
2022-09-30 16:05 ` [PATCH v6 19/19] ArmVirtPkg: Kvmtool: Add RNG support using FW-TRNG interface PierreGondois
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