From: "Rebecca Cran" <quic_rcran@quicinc.com>
To: <devel@edk2.groups.io>, Sami Mujawar <sami.mujawar@arm.com>,
"Ard Biesheuvel" <ardb+tianocore@kernel.org>,
Leif Lindholm <quic_llindhol@quicinc.com>,
Jian J Wang <jian.j.wang@intel.com>,
Liming Gao <gaoliming@byosoft.com.cn>,
Tiger Liu <TigerLiu@zhaoxin.com>, Kun Qin <kuqin12@gmail.com>
Cc: Rebecca Cran <rebecca@quicinc.com>
Subject: [PATCH v5 0/2] ArmPkg: Implement EFI_MP_SERVICES_PROTOCOL based on PSCI calls for AArch64
Date: Mon, 16 Jan 2023 21:57:29 -0700 [thread overview]
Message-ID: <20230117045731.412528-1-rebecca@quicinc.com> (raw)
Implement EFI_MP_SERVICES_PROTOCOL based on PSCI calls for AArch64.
Note that several tests from UefiCpuPkg/Test/UnitTest/EfiMpServicesPpiProtocol
will fail because there's currently no mechanism implemented to reset
APs that are stuck running the user's code (e.g. tests that run an
infinite loop).
On x86 an IPI is sent to take back control: something similar should be
implemented on Arm.
Changes from v4:
o Changes based on review feedback from Kun Qin.
o Dropped the MpServicesTest patch, since
UefiCpuPkg/Test/UnitTest/EfiMpServicesPpiProtocol implements similar
functionality.
Changes from v2:
Added a CPU exception handler for the APs so that if the user's code
causes an exception (e.g. because the application terminates) the AP
state is set to CpuStateFinished and the core powered off.
Rebecca Cran (2):
ArmPkg: Add GET_MPIDR_AFFINITY_BITS and MPIDR_MT_BIT to ArmLib.h
ArmPkg: implement EFI_MP_SERVICES_PROTOCOL based on PSCI calls
ArmPkg/ArmPkg.dsc | 1 +
ArmPkg/Drivers/ArmPsciMpServicesDxe/ArmPsciMpServicesDxe.inf | 56 +
ArmPkg/Drivers/ArmPsciMpServicesDxe/MpServicesInternal.h | 345 ++++
ArmPkg/Include/Library/ArmLib.h | 16 +-
ArmPkg/Drivers/ArmPsciMpServicesDxe/ArmPsciMpServicesDxe.c | 1859 ++++++++++++++++++++
ArmPkg/Drivers/ArmPsciMpServicesDxe/MpFuncs.S | 74 +
6 files changed, 2344 insertions(+), 7 deletions(-)
create mode 100644 ArmPkg/Drivers/ArmPsciMpServicesDxe/ArmPsciMpServicesDxe.inf
create mode 100644 ArmPkg/Drivers/ArmPsciMpServicesDxe/MpServicesInternal.h
create mode 100644 ArmPkg/Drivers/ArmPsciMpServicesDxe/ArmPsciMpServicesDxe.c
create mode 100644 ArmPkg/Drivers/ArmPsciMpServicesDxe/MpFuncs.S
--
2.30.2
next reply other threads:[~2023-01-17 4:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-17 4:57 Rebecca Cran [this message]
2023-01-17 4:57 ` [PATCH v5 1/2] ArmPkg: Add GET_MPIDR_AFFINITY_BITS and MPIDR_MT_BIT to ArmLib.h Rebecca Cran
2023-01-17 4:57 ` [PATCH v5 2/2] ArmPkg: implement EFI_MP_SERVICES_PROTOCOL based on PSCI calls Rebecca Cran
2023-01-24 0:18 ` [PATCH v5 0/2] ArmPkg: Implement EFI_MP_SERVICES_PROTOCOL based on PSCI calls for AArch64 Kun Qin
2023-01-27 4:10 ` [edk2-devel] " Rebecca Cran
2023-01-27 14:02 ` Ard Biesheuvel
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