From: Pierre Gondois <pierre.gond...@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.gond...@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 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#91702): https://edk2.groups.io/g/devel/message/91702 Mute This Topic: https://groups.io/mt/92548697/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-