PrmPkg/PrmLoaderDxe: Add ACPI parameter buffer support

Adds support to PrmLoaderDxe to move the ACPI parameter buffer
address for a given PRM handler to the corresponding field
in the PRM handler information structure (PRMT ACPI table).

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>

1 files changed, 17 insertions, 0 deletions

diff --git a/PrmPkg/PrmLoaderDxe/PrmLoaderDxe.c b/PrmPkg/PrmLoaderDxe/PrmLoaderDxe.c
index 433d81cf80..6416e388a6 100644
--- a/PrmPkg/PrmLoaderDxe/PrmLoaderDxe.c
+++ b/PrmPkg/PrmLoaderDxe/PrmLoaderDxe.c
@@ -621,6 +621,7 @@ ProcessPrmModules (
   PRM_MODULE_IMAGE_CONTEXT_LIST_ENTRY     *TempListEntry;

   CONST CHAR8                             *CurrentExportDescriptorHandlerName;

 

+  ACPI_PARAMETER_BUFFER_DESCRIPTOR        *CurrentModuleAcpiParamDescriptors;

   PRM_CONTEXT_BUFFER                      *CurrentContextBuffer;

   PRM_MODULE_CONTEXT_BUFFERS              *CurrentModuleContextBuffers;

   PRM_MODULE_INFORMATION_STRUCT           *CurrentModuleInfoStruct;

@@ -628,6 +629,7 @@ ProcessPrmModules (
 

   EFI_STATUS                              Status;

   EFI_PHYSICAL_ADDRESS                    CurrentImageAddress;

+  UINTN                                   AcpiParamIndex;

   UINTN                                   HandlerIndex;

   UINT32                                  PrmAcpiDescriptionTableBufferSize;

 

@@ -677,6 +679,7 @@ ProcessPrmModules (
     CurrentImageAddress = TempListEntry->Context->PeCoffImageContext.ImageAddress;

     CurrentImageExportDirectory = TempListEntry->Context->ExportDirectory;

     CurrentExportDescriptorStruct = TempListEntry->Context->ExportDescriptor;

+    CurrentModuleAcpiParamDescriptors = NULL;

 

     DEBUG ((

       DEBUG_INFO,

@@ -715,6 +718,7 @@ ProcessPrmModules (
     ASSERT (!EFI_ERROR (Status) || Status == EFI_NOT_FOUND);

     if (!EFI_ERROR (Status) && CurrentModuleContextBuffers != NULL) {

       CurrentModuleInfoStruct->RuntimeMmioRanges = (UINT64) (UINTN) CurrentModuleContextBuffers->RuntimeMmioRanges;

+      CurrentModuleAcpiParamDescriptors = CurrentModuleContextBuffers->AcpiParameterBufferDescriptors;

     }

 

     //

@@ -759,6 +763,19 @@ ProcessPrmModules (
           CurrentHandlerInfoStruct->PhysicalAddress

           ));

       }

+

+      //

+      // Update the handler ACPI parameter buffer address if applicable

+      //

+      if (CurrentModuleAcpiParamDescriptors != NULL) {

+        for (AcpiParamIndex = 0; AcpiParamIndex < CurrentModuleContextBuffers->AcpiParameterBufferDescriptorCount; AcpiParamIndex++) {

+          if (CompareGuid (&CurrentModuleAcpiParamDescriptors[AcpiParamIndex].HandlerGuid, &CurrentHandlerInfoStruct->Identifier)) {

+            CurrentHandlerInfoStruct->AcpiParameterBuffer = (UINT64) (UINTN) (

+                                                              CurrentModuleAcpiParamDescriptors[AcpiParamIndex].AcpiParameterBufferAddress

+                                                              );

+          }

+        }

+      }

     }

     CurrentModuleInfoStruct = (PRM_MODULE_INFORMATION_STRUCT *) ((UINTN) CurrentModuleInfoStruct + CurrentModuleInfoStruct->StructureLength);

   }