From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mx.groups.io with SMTP id smtpd.web10.3208.1663615348662820370 for ; Mon, 19 Sep 2022 12:22:29 -0700 Authentication-Results: mx.groups.io; dkim=missing; spf=pass (domain: arm.com, ip: 217.140.110.172, mailfrom: pierre.gondois@arm.com) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C371024E9; Mon, 19 Sep 2022 12:22:34 -0700 (PDT) Received: from pierre123.arm.com (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 2469E3F73B; Mon, 19 Sep 2022 12:22:26 -0700 (PDT) From: "PierreGondois" To: devel@edk2.groups.io Cc: Sami Mujawar , Leif Lindholm , Ard Biesheuvel , Rebecca Cran , Michael D Kinney , Liming Gao , Jiewen Yao , Jian J Wang Subject: [PATCH v5 03/21] ArmPkg/ArmMonitorLib: Add ArmMonitorLib Date: Mon, 19 Sep 2022 21:21:49 +0200 Message-Id: <20220919192207.637786-4-Pierre.Gondois@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220919192207.637786-1-Pierre.Gondois@arm.com> References: <20220919192207.637786-1-Pierre.Gondois@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable From: Pierre Gondois 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 --- 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 =20 ArmPkg/Filesystem/SemihostFs/SemihostFs.inf diff --git a/ArmPkg/Library/ArmMonitorLib/ArmMonitorLib.c b/ArmPkg/Librar= y/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.
+ + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include +#include +#include +#include + +/** 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/Libr= ary/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.
+# +# SPDX-License-Identifier: BSD-2-Clause-Patent +## + +[Defines] + INF_VERSION =3D 0x0001001B + BASE_NAME =3D ArmMonitorLib + FILE_GUID =3D F918DACB-FBB8-4CB6-A61D-08E75AF0E7C= D + MODULE_TYPE =3D BASE + VERSION_STRING =3D 1.0 + LIBRARY_CLASS =3D ArmMonitorLib + +[Sources] + ArmMonitorLib.c + +[Packages] + ArmPkg/ArmPkg.dec + MdePkg/MdePkg.dec + +[LibraryClasses] + ArmHvcLib + ArmSmcLib + +[Pcd] + gArmTokenSpaceGuid.PcdMonitorConduitHvc --=20 2.25.1