mirror of https://github.com/acidanthera/audk.git
PrmPkg: Add initial PrmSamplePrintModule
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3812 Adds a simple sample PRM module that demonstrates: 1. How to write a PRM module 2. How to use multiple PRM handlers in a module 3. How to use a basic PRM OS service Cc: Andrew Fish <afish@apple.com> Cc: Kang Gao <kang.gao@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Michael Kubacki <michael.kubacki@microsoft.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Benjamin You <benjamin.you@intel.com> Cc: Liu Yun <yun.y.liu@intel.com> Cc: Ankit Sinha <ankit.sinha@intel.com> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Acked-by: Michael D Kinney <michael.d.kinney@intel.com> Acked-by: Liming Gao <gaoliming@byosoft.com.cn> Acked-by: Leif Lindholm <quic_llindhol@quicinc.com> Reviewed-by: Ankit Sinha <ankit.sinha@intel.com>
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/** @file
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A sample PRM Module implementation. This PRM Module provides 3 PRM handlers that simply take a DEBUG print
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function from the OS and invoke it with a debug message internal the PRM handler.
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Copyright (c) Microsoft Corporation
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <PrmModule.h>
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#include <Library/BaseLib.h>
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#include <Library/UefiLib.h>
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//
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// PRM Handler GUIDs
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//
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// {d5f2ad5f-a347-4d3e-87bc-c2ce63029cc8}
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#define PRM_HANDLER_1_GUID {0xd5f2ad5f, 0xa347, 0x4d3e, {0x87, 0xbc, 0xc2, 0xce, 0x63, 0x02, 0x9c, 0xc8}}
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// {a9e7adc3-8cd0-429a-8915-10946ebde318}
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#define PRM_HANDLER_2_GUID {0xa9e7adc3, 0x8cd0, 0x429a, {0x89, 0x15, 0x10, 0x94, 0x6e, 0xbd, 0xe3, 0x18}}
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// {b688c214-4081-4eeb-8d26-1eb5a3bcf11a}
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#define PRM_HANDLER_N_GUID {0xb688c214, 0x4081, 0x4eeb, {0x8d, 0x26, 0x1e, 0xb5, 0xa3, 0xbc, 0xf1, 0x1a}}
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/**
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A sample Platform Runtime Mechanism (PRM) handler.
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This sample handler currently uses the OS_SERVICES to write a debug message
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indicating this is PRM handler 1.
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@param[in] ParameterBuffer A pointer to the PRM handler parameter buffer
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@param[in] ContextBUffer A pointer to the PRM handler context buffer
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@retval EFI_STATUS The PRM handler executed successfully.
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@retval Others An error occurred in the PRM handler.
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**/
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EFI_STATUS
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PRM_EXPORT_API
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EFIAPI
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PrmHandler1 (
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IN VOID *ParameterBuffer,
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IN PRM_CONTEXT_BUFFER *ContextBUffer
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)
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{
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PRM_OS_SERVICE_DEBUG_PRINT OsServiceDebugPrint;
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if (ParameterBuffer == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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// In the POC, the OS debug print service is assumed to be at the beginning of ParameterBuffer
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OsServiceDebugPrint = *((PRM_OS_SERVICE_DEBUG_PRINT *) ParameterBuffer);
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if (OsServiceDebugPrint == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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OsServiceDebugPrint ("PRM1 handler sample message!\n");
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return EFI_SUCCESS;
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}
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/**
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A sample Platform Runtime Mechanism (PRM) handler.
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This sample handler currently uses the OS_SERVICES to write a debug message
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indicating this is PRM handler 2.
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@param[in] ParameterBuffer A pointer to the PRM handler parameter buffer
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@param[in] ContextBUffer A pointer to the PRM handler context buffer
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@retval EFI_STATUS The PRM handler executed successfully.
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@retval Others An error occurred in the PRM handler.
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**/
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EFI_STATUS
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PRM_EXPORT_API
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EFIAPI
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PrmHandler2 (
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IN VOID *ParameterBuffer,
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IN PRM_CONTEXT_BUFFER *ContextBUffer
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)
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{
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PRM_OS_SERVICE_DEBUG_PRINT OsServiceDebugPrint;
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if (ParameterBuffer == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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// In the POC, the OS debug print service is assumed to be at the beginning of ParameterBuffer
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OsServiceDebugPrint = *((PRM_OS_SERVICE_DEBUG_PRINT *) ParameterBuffer);
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if (OsServiceDebugPrint == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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OsServiceDebugPrint ("PRM2 handler sample message!\n");
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return EFI_SUCCESS;
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}
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/**
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A sample Platform Runtime Mechanism (PRM) handler.
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This sample handler currently uses the OS_SERVICES to write a debug message
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indicating this is PRM handler N.
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@param[in] ParameterBuffer A pointer to the PRM handler parameter buffer
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@param[in] ContextBUffer A pointer to the PRM handler context buffer
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@retval EFI_STATUS The PRM handler executed successfully.
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@retval Others An error occurred in the PRM handler.
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**/
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EFI_STATUS
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PRM_EXPORT_API
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EFIAPI
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PrmHandlerN (
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IN VOID *ParameterBuffer,
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IN PRM_CONTEXT_BUFFER *ContextBUffer
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)
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{
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PRM_OS_SERVICE_DEBUG_PRINT OsServiceDebugPrint;
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if (ParameterBuffer == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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// In the POC, the OS debug print service is assumed to be at the beginning of ParameterBuffer
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OsServiceDebugPrint = *((PRM_OS_SERVICE_DEBUG_PRINT *) ParameterBuffer);
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if (OsServiceDebugPrint == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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OsServiceDebugPrint ("PRMN handler sample message!\n");
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return EFI_SUCCESS;
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}
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//
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// Register the PRM export information for this PRM Module
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//
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PRM_MODULE_EXPORT (
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PRM_HANDLER_EXPORT_ENTRY (PRM_HANDLER_1_GUID, PrmHandler1),
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PRM_HANDLER_EXPORT_ENTRY (PRM_HANDLER_2_GUID, PrmHandler2),
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PRM_HANDLER_EXPORT_ENTRY (PRM_HANDLER_N_GUID, PrmHandlerN)
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);
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EFI_STATUS
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EFIAPI
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PrmSamplePrintModuleInit (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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return EFI_SUCCESS;
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}
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@ -0,0 +1,39 @@
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## @file
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# Sample PRM Driver
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#
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# This driver simply uses an OS-provided debug message print service to write
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# a debug message. Three PRM handlers are provided that each print a unique
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# debug message.
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#
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# Copyright (c) Microsoft Corporation
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#
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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#
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##
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = PrmSamplePrintModule
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FILE_GUID = 1652B3C2-A7A1-46AC-AF93-DD6DEE446669
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MODULE_TYPE = DXE_RUNTIME_DRIVER
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VERSION_STRING = 1.0
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ENTRY_POINT = PrmSamplePrintModuleInit
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[Sources]
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PrmSamplePrintModule.c
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[Packages]
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MdePkg/MdePkg.dec
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MdeModulePkg/MdeModulePkg.dec
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PrmPkg/PrmPkg.dec
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[LibraryClasses]
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BaseLib
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UefiDriverEntryPoint
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UefiLib
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[Depex]
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TRUE
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[BuildOptions.common]
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MSFT:*_*_*_DLINK_FLAGS = /DLL /SUBSYSTEM:CONSOLE
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