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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 v5 03/21] ArmPkg/ArmMonitorLib: Add ArmMonitorLib
Date: Mon, 19 Sep 2022 21:21:49 +0200	[thread overview]
Message-ID: <20220919192207.637786-4-Pierre.Gondois@arm.com> (raw)
In-Reply-To: <20220919192207.637786-1-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>
---
 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..5e91f2957325
--- /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..abaeb556d471
--- /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                    = 0x0001001B
+  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


  parent reply	other threads:[~2022-09-19 19:22 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-19 19:21 [PATCH v5 00/21] Add Raw algorithm support using Arm FW-TRNG interface PierreGondois
2022-09-19 19:21 ` [PATCH v5 01/21] ArmPkg: PCD to select conduit for monitor calls PierreGondois
2022-09-27 18:59   ` Leif Lindholm
2022-09-19 19:21 ` [PATCH v5 02/21] ArmPkg/ArmMonitorLib: Definition for ArmMonitorLib library class PierreGondois
2022-09-19 19:21 ` PierreGondois [this message]
2022-09-27 18:51   ` [PATCH v5 03/21] ArmPkg/ArmMonitorLib: Add ArmMonitorLib Leif Lindholm
2022-09-27 19:00   ` [edk2-devel] " Rebecca Cran
2022-09-27 19:10   ` Rebecca Cran
2022-09-19 19:21 ` [PATCH v5 04/21] ArmPkg/ArmHvcNullLib: Add NULL instance of ArmHvcLib PierreGondois
2022-09-27 18:55   ` Leif Lindholm
2022-09-19 19:21 ` [PATCH v5 05/21] MdePkg/TrngLib: Definition for TRNG library class interface PierreGondois
2022-09-27 19:00   ` Leif Lindholm
2022-09-19 19:21 ` [PATCH v5 06/21] MdePkg/TrngLib: Add NULL instance of TRNG Library PierreGondois
2022-09-27 19:02   ` Leif Lindholm
2022-09-19 19:21 ` [PATCH v5 07/21] ArmPkg: Add FID definitions for Firmware TRNG PierreGondois
2022-09-27 19:04   ` Leif Lindholm
2022-09-19 19:21 ` [PATCH v5 08/21] ArmPkg/TrngLib: Add Arm Firmware TRNG library PierreGondois
2022-09-19 19:21 ` [PATCH v5 09/21] MdePkg/BaseRngLib: Rename ArmReadIdIsar0() to ArmGetFeatRng() PierreGondois
2022-09-27 21:44   ` [edk2-devel] " Rebecca Cran
2022-09-28 17:10   ` Leif Lindholm
2022-09-29 16:21     ` PierreGondois
2022-09-29 17:09       ` Leif Lindholm
2022-09-19 19:21 ` [PATCH v5 10/21] ArmPkg/ArmLib: Add ArmReadIdIsar0() helper PierreGondois
2022-09-19 19:21 ` [PATCH v5 11/21] ArmPkg/ArmLib: Add ArmHasRngExt() PierreGondois
2022-09-19 19:21 ` [PATCH v5 12/21] SecurityPkg/RngDxe: Rename RdRandGenerateEntropy to generic name PierreGondois
2022-09-19 19:21 ` [PATCH v5 13/21] SecurityPkg/RngDxe: Replace Pcd with Sp80090Ctr256Guid PierreGondois
2022-09-19 19:22 ` [PATCH v5 14/21] SecurityPkg/RngDxe: Remove ArchGetSupportedRngAlgorithms() PierreGondois
2022-09-19 19:22 ` [PATCH v5 15/21] SecurityPkg/RngDxe: Documentation/include/parameter cleanup PierreGondois
2022-09-19 19:22 ` [PATCH v5 16/21] SecurityPkg/RngDxe: Check before advertising Cpu Rng algo PierreGondois
2022-09-19 19:22 ` [PATCH v5 17/21] SecurityPkg/RngDxe: Add AArch64 RawAlgorithm support through TrngLib PierreGondois
2022-09-19 19:22 ` [PATCH v5 18/21] SecurityPkg/RngDxe: Add debug warning for NULL PcdCpuRngSupportedAlgorithm PierreGondois
2022-09-19 19:22 ` [PATCH v5 19/21] SecurityPkg/RngDxe: Rename AArch64/RngDxe.c PierreGondois
2022-09-19 19:22 ` [PATCH v5 20/21] SecurityPkg/RngDxe: Add Arm support of RngDxe PierreGondois
2022-09-19 19:22 ` [PATCH v5 21/21] ArmVirtPkg: Kvmtool: Add RNG support using FW-TRNG interface PierreGondois

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