[edk2-devel] [PATCH 14/79] PlatformPkg/Library: Add FirmwareContextProcessorSpecificLib module
Abner Chang
abner.chang at hpe.com
Sat Jan 8 04:10:34 UTC 2022
(This is migrated from edk2-platforms:Platform/RISC-V)
Add OpenSBI firmware context processor specific library which
provides interface to create processor specific firmware
context hob data.
Signed-off-by: Abner Chang <abner.chang at hpe.com>
Co-authored-by: Gilbert Chen <gilbert.chen at hpe.com>
Reviewed-by: Leif Lindholm <leif.lindholm at linaro.org>
Cc: Leif Lindholm <leif.lindholm at linaro.org>
Cc: Gilbert Chen <gilbert.chen at hpe.com>
---
.../FirmwareContextProcessorSpecificLib.inf | 31 +++++
.../FirmwareContextProcessorSpecificLib.h | 53 ++++++++
.../FirmwareContextProcessorSpecificLib.c | 119 ++++++++++++++++++
3 files changed, 203 insertions(+)
create mode 100644 Platform/RISC-V/PlatformPkg/Library/FirmwareContextProcessorSpecificLib/FirmwareContextProcessorSpecificLib.inf
create mode 100644 Platform/RISC-V/PlatformPkg/Include/Library/FirmwareContextProcessorSpecificLib.h
create mode 100644 Platform/RISC-V/PlatformPkg/Library/FirmwareContextProcessorSpecificLib/FirmwareContextProcessorSpecificLib.c
diff --git a/Platform/RISC-V/PlatformPkg/Library/FirmwareContextProcessorSpecificLib/FirmwareContextProcessorSpecificLib.inf b/Platform/RISC-V/PlatformPkg/Library/FirmwareContextProcessorSpecificLib/FirmwareContextProcessorSpecificLib.inf
new file mode 100644
index 0000000000..69568511ce
--- /dev/null
+++ b/Platform/RISC-V/PlatformPkg/Library/FirmwareContextProcessorSpecificLib/FirmwareContextProcessorSpecificLib.inf
@@ -0,0 +1,31 @@
+#/** @file
+#
+# Copyright (c) 2019, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x0001001b
+ BASE_NAME = FirmwareContextProcessorSpecificLib
+ FILE_GUID = 8BEC9FD7-C554-403A-94F1-0EBBFD81A242
+ MODULE_TYPE = PEIM
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = FirmwareContextProcessorSpecificLib
+
+[Sources.common]
+ FirmwareContextProcessorSpecificLib.c
+
+[Packages]
+ MdeModulePkg/MdeModulePkg.dec
+ MdePkg/MdePkg.dec
+ Silicon/RISC-V/ProcessorPkg/RiscVProcessorPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ PcdLib
+ MemoryAllocationLib
+ PrintLib
+
+
diff --git a/Platform/RISC-V/PlatformPkg/Include/Library/FirmwareContextProcessorSpecificLib.h b/Platform/RISC-V/PlatformPkg/Include/Library/FirmwareContextProcessorSpecificLib.h
new file mode 100644
index 0000000000..f3b096c257
--- /dev/null
+++ b/Platform/RISC-V/PlatformPkg/Include/Library/FirmwareContextProcessorSpecificLib.h
@@ -0,0 +1,53 @@
+/** @file
+ Firmware Context Processor-specific common library
+
+ Copyright (c) 2019, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+#ifndef FIRMWARE_CONTEXT_PROCESSOR_SPECIFIC_LIB_H
+#define FIRMWARE_CONTEXT_PROCESSOR_SPECIFIC_LIB_H
+
+#include <IndustryStandard/RiscVOpensbi.h>
+#include <PiPei.h>
+#include <ProcessorSpecificHobData.h>
+
+/**
+ Build up common firmware context processor-specific information
+
+ @param FirmwareContextHartSpecific Pointer to EFI_RISCV_FIRMWARE_CONTEXT_HART_SPECIFIC
+ @param ParentProcessorGuid Pointer to GUID of Processor which contains this core
+ @param ParentProcessorUid Unique ID of pysical processor which owns this core.
+ @param CoreGuid Pointer to GUID of core
+ @param HartId Hart ID of this core.
+ @param IsBootHart This is boot hart or not
+ @param ProcessorSpecDataHob Pointer to RISC_V_PROCESSOR_SPECIFIC_DATA_HOB
+
+ @return EFI_STATUS
+
+**/
+EFI_STATUS
+EFIAPI
+CommonFirmwareContextHartSpecificInfo (
+ EFI_RISCV_FIRMWARE_CONTEXT_HART_SPECIFIC *FirmwareContextHartSpecific,
+ EFI_GUID *ParentProcessorGuid,
+ UINTN ParentProcessorUid,
+ EFI_GUID *CoreGuid,
+ UINTN HartId,
+ BOOLEAN IsBootHart,
+ RISC_V_PROCESSOR_SPECIFIC_HOB_DATA *ProcessorSpecDataHob
+ );
+
+/**
+ Print debug information of the processor specific data for a hart
+
+ @param ProcessorSpecificDataHob Pointer to RISC_V_PROCESSOR_SPECIFIC_DATA_HOB
+**/
+VOID
+EFIAPI
+DebugPrintHartSpecificInfo (
+ RISC_V_PROCESSOR_SPECIFIC_HOB_DATA *ProcessorSpecificDataHob
+ );
+
+#endif
diff --git a/Platform/RISC-V/PlatformPkg/Library/FirmwareContextProcessorSpecificLib/FirmwareContextProcessorSpecificLib.c b/Platform/RISC-V/PlatformPkg/Library/FirmwareContextProcessorSpecificLib/FirmwareContextProcessorSpecificLib.c
new file mode 100644
index 0000000000..c62f77bc49
--- /dev/null
+++ b/Platform/RISC-V/PlatformPkg/Library/FirmwareContextProcessorSpecificLib/FirmwareContextProcessorSpecificLib.c
@@ -0,0 +1,119 @@
+/**@file
+ Common library to build upfirmware context processor-specific information
+
+ Copyright (c) 2019, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+//
+// The package level header files this module uses
+//
+#include <PiPei.h>
+
+//
+// The Library classes this module consumes
+//
+#include <IndustryStandard/RiscVOpensbi.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PeiServicesLib.h>
+#include <ProcessorSpecificHobData.h>
+#include <RiscVImpl.h>
+#include <sbi/sbi_hart.h>
+
+/**
+ Build up common firmware context processor-specific information
+
+ @param FirmwareContextHartSpecific Pointer to EFI_RISCV_FIRMWARE_CONTEXT_HART_SPECIFIC
+ @param ParentProcessorGuid Pointer to GUID of Processor which contains this core
+ @param ParentProcessorUid Unique ID of pysical processor which owns this core.
+ @param CoreGuid Pointer to GUID of core
+ @param HartId Hart ID of this core.
+ @param IsBootHart This is boot hart or not
+ @param ProcessorSpecificDataHob Pointer to RISC_V_PROCESSOR_SPECIFIC_DATA_HOB
+
+ @return EFI_STATUS
+
+**/
+EFI_STATUS
+EFIAPI
+CommonFirmwareContextHartSpecificInfo (
+ EFI_RISCV_FIRMWARE_CONTEXT_HART_SPECIFIC *FirmwareContextHartSpecific,
+ EFI_GUID *ParentProcessorGuid,
+ UINTN ParentProcessorUid,
+ EFI_GUID *CoreGuid,
+ UINTN HartId,
+ BOOLEAN IsBootHart,
+ RISC_V_PROCESSOR_SPECIFIC_HOB_DATA *ProcessorSpecificDataHob
+ )
+{
+ //
+ // Build up RISC_V_PROCESSOR_SPECIFIC_DATA_HOB.
+ //
+ CopyGuid (&ProcessorSpecificDataHob->ParentPrcessorGuid, ParentProcessorGuid);
+ ProcessorSpecificDataHob->ParentProcessorUid = ParentProcessorUid;
+ CopyGuid (&ProcessorSpecificDataHob->CoreGuid, CoreGuid);
+ ProcessorSpecificDataHob->Context = NULL;
+ ProcessorSpecificDataHob->ProcessorSpecificData.Revision =
+ SMBIOS_RISC_V_PROCESSOR_SPECIFIC_DATA_REVISION;
+ ProcessorSpecificDataHob->ProcessorSpecificData.Length =
+ sizeof (SMBIOS_RISC_V_PROCESSOR_SPECIFIC_DATA);
+ ProcessorSpecificDataHob->ProcessorSpecificData.HartId.Value64_L = (UINT64)HartId;
+ ProcessorSpecificDataHob->ProcessorSpecificData.HartId.Value64_H = 0;
+ ProcessorSpecificDataHob->ProcessorSpecificData.BootHartId = (UINT8)IsBootHart;
+ ProcessorSpecificDataHob->ProcessorSpecificData.InstSetSupported =
+ FirmwareContextHartSpecific->IsaExtensionSupported;
+ ProcessorSpecificDataHob->ProcessorSpecificData.PrivilegeModeSupported =
+ SMBIOS_RISC_V_PSD_MACHINE_MODE_SUPPORTED;
+ if ((ProcessorSpecificDataHob->ProcessorSpecificData.InstSetSupported &
+ RISC_V_ISA_SUPERVISOR_MODE_IMPLEMENTED) != 0) {
+ ProcessorSpecificDataHob->ProcessorSpecificData.PrivilegeModeSupported |=
+ SMBIOS_RISC_V_PSD_SUPERVISOR_MODE_SUPPORTED;
+ }
+ if ((ProcessorSpecificDataHob->ProcessorSpecificData.InstSetSupported &
+ RISC_V_ISA_USER_MODE_IMPLEMENTED) != 0) {
+ ProcessorSpecificDataHob->ProcessorSpecificData.PrivilegeModeSupported |=
+ SMBIOS_RISC_V_PSD_USER_MODE_SUPPORTED;
+ }
+ ProcessorSpecificDataHob->ProcessorSpecificData.MachineVendorId.Value64_L =
+ FirmwareContextHartSpecific->MachineVendorId.Value64_L;
+ ProcessorSpecificDataHob->ProcessorSpecificData.MachineVendorId.Value64_H =
+ FirmwareContextHartSpecific->MachineVendorId.Value64_H;
+ ProcessorSpecificDataHob->ProcessorSpecificData.MachineArchId.Value64_L =
+ FirmwareContextHartSpecific->MachineArchId.Value64_L;
+ ProcessorSpecificDataHob->ProcessorSpecificData.MachineArchId.Value64_H =
+ FirmwareContextHartSpecific->MachineArchId.Value64_H;
+ ProcessorSpecificDataHob->ProcessorSpecificData.MachineImplId.Value64_L =
+ FirmwareContextHartSpecific->MachineImplId.Value64_L;
+ ProcessorSpecificDataHob->ProcessorSpecificData.MachineImplId.Value64_H =
+ FirmwareContextHartSpecific->MachineImplId.Value64_H;
+ return EFI_SUCCESS;
+}
+
+/**
+ Print debug information of the processor specific data for a hart
+
+ @param ProcessorSpecificDataHob Pointer to RISC_V_PROCESSOR_SPECIFIC_DATA_HOB
+**/
+VOID
+EFIAPI
+DebugPrintHartSpecificInfo (
+ RISC_V_PROCESSOR_SPECIFIC_HOB_DATA *ProcessorSpecificDataHob
+ )
+{
+ DEBUG ((DEBUG_INFO, " *HartId = 0x%x\n", ProcessorSpecificDataHob->ProcessorSpecificData.HartId.Value64_L));
+ DEBUG ((DEBUG_INFO, " *Is Boot Hart? = 0x%x\n", ProcessorSpecificDataHob->ProcessorSpecificData.BootHartId));
+ DEBUG ((DEBUG_INFO, " *PrivilegeModeSupported = 0x%x\n", ProcessorSpecificDataHob->ProcessorSpecificData.PrivilegeModeSupported));
+ DEBUG ((DEBUG_INFO, " *MModeExcepDelegation = 0x%x\n", ProcessorSpecificDataHob->ProcessorSpecificData.MModeExcepDelegation.Value64_L));
+ DEBUG ((DEBUG_INFO, " *MModeInterruptDelegation = 0x%x\n", ProcessorSpecificDataHob->ProcessorSpecificData.MModeInterruptDelegation.Value64_L));
+ DEBUG ((DEBUG_INFO, " *HartXlen = 0x%x\n", ProcessorSpecificDataHob->ProcessorSpecificData.HartXlen ));
+ DEBUG ((DEBUG_INFO, " *MachineModeXlen = 0x%x\n", ProcessorSpecificDataHob->ProcessorSpecificData.MachineModeXlen));
+ DEBUG ((DEBUG_INFO, " *SupervisorModeXlen = 0x%x\n", ProcessorSpecificDataHob->ProcessorSpecificData.SupervisorModeXlen));
+ DEBUG ((DEBUG_INFO, " *UserModeXlen = 0x%x\n", ProcessorSpecificDataHob->ProcessorSpecificData.UserModeXlen));
+ DEBUG ((DEBUG_INFO, " *InstSetSupported = 0x%x\n", ProcessorSpecificDataHob->ProcessorSpecificData.InstSetSupported));
+ DEBUG ((DEBUG_INFO, " *MachineVendorId = 0x%x\n", ProcessorSpecificDataHob->ProcessorSpecificData.MachineVendorId.Value64_L));
+ DEBUG ((DEBUG_INFO, " *MachineArchId = 0x%x\n", ProcessorSpecificDataHob->ProcessorSpecificData.MachineArchId.Value64_L));
+ DEBUG ((DEBUG_INFO, " *MachineImplId = 0x%x\n", ProcessorSpecificDataHob->ProcessorSpecificData.MachineImplId.Value64_L));
+}
--
2.31.1
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