X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=IntelFsp2Pkg%2FFspNotifyPhase%2FFspNotifyPhasePeim.c;fp=IntelFsp2Pkg%2FFspNotifyPhase%2FFspNotifyPhasePeim.c;h=6acdeb3b60314e9a1233252e202230c4fffffe73;hp=0000000000000000000000000000000000000000;hb=cf1d454983fb4fd3b580a92bd242310467a5eaef;hpb=c9802c45647d84e71b4620fdfff0c4bd88cf5acb

diff --git a/IntelFsp2Pkg/FspNotifyPhase/FspNotifyPhasePeim.c b/IntelFsp2Pkg/FspNotifyPhase/FspNotifyPhasePeim.c
new file mode 100644
index 0000000000..6acdeb3b60
--- /dev/null
+++ b/IntelFsp2Pkg/FspNotifyPhase/FspNotifyPhasePeim.c
@@ -0,0 +1,142 @@
+/** @file
+  Source file for FSP notify phase PEI module
+
+  Copyright (c) 2016, Intel Corporation. All rights reserved.
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php.
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+**/
+
+#include "FspNotifyPhasePeim.h"
+
+/**
+
+   This function waits for FSP notify.
+    
+   @param This          Entry point for DXE IPL PPI.
+   @param PeiServices   General purpose services available to every PEIM.
+   @param HobList       Address to the Pei HOB list.
+   
+   @return EFI_SUCCESS              This function never returns.
+
+**/
+EFI_STATUS
+EFIAPI
+WaitForNotify (
+  IN CONST EFI_DXE_IPL_PPI *This,
+  IN EFI_PEI_SERVICES      **PeiServices,
+  IN EFI_PEI_HOB_POINTERS  HobList
+  );
+
+CONST EFI_DXE_IPL_PPI mDxeIplPpi = {
+  WaitForNotify
+};
+
+CONST EFI_PEI_PPI_DESCRIPTOR mInstallDxeIplPpi = {
+  EFI_PEI_PPI_DESCRIPTOR_PPI,
+  &gEfiDxeIplPpiGuid,
+  (VOID *) &mDxeIplPpi
+};
+
+CONST EFI_PEI_PPI_DESCRIPTOR gEndOfPeiSignalPpi = {
+  (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+  &gEfiEndOfPeiSignalPpiGuid,
+  NULL
+};
+
+/**
+
+   This function waits for FSP notify.
+    
+   @param This          Entry point for DXE IPL PPI.
+   @param PeiServices   General purpose services available to every PEIM.
+   @param HobList       Address to the Pei HOB list.
+   
+   @return EFI_SUCCESS              This function never returns.
+
+**/
+EFI_STATUS
+EFIAPI
+WaitForNotify (
+  IN CONST EFI_DXE_IPL_PPI *This,
+  IN EFI_PEI_SERVICES      **PeiServices,
+  IN EFI_PEI_HOB_POINTERS  HobList
+  )
+{
+  EFI_STATUS   Status;
+
+  DEBUG ((DEBUG_INFO | DEBUG_INIT, "FSP HOB is located at 0x%08X\n", HobList));
+
+  //
+  // End of PEI phase signal
+  //
+  Status = PeiServicesInstallPpi (&gEndOfPeiSignalPpi);
+  ASSERT_EFI_ERROR (Status);
+
+  //
+  // Give control back to BootLoader after FspSiliconInit
+  //
+  DEBUG ((DEBUG_INFO | DEBUG_INIT, "FSP is waiting for NOTIFY\n"));
+  FspSiliconInitDone ();
+
+  //
+  // BootLoader called FSP again through NotifyPhase
+  //
+  FspWaitForNotify ();
+
+  //
+  // Should not come here
+  //
+  while (TRUE) {
+    DEBUG ((DEBUG_ERROR, "No FSP API should be called after FSP is DONE!\n"));
+    SetFspApiReturnStatus (EFI_UNSUPPORTED);
+    Pei2LoaderSwitchStack ();
+  }
+
+  return EFI_SUCCESS;
+}
+
+/**
+  FSP notify phase PEI module entry point
+
+  @param[in]  FileHandle           Not used.
+  @param[in]  PeiServices          General purpose services available to every PEIM.
+
+  @retval     EFI_SUCCESS          The function completes successfully
+  @retval     EFI_OUT_OF_RESOURCES Insufficient resources to create database
+**/
+EFI_STATUS
+FspNotifyPhasePeimEntryPoint (
+  IN       EFI_PEI_FILE_HANDLE    FileHandle,
+  IN CONST EFI_PEI_SERVICES       **PeiServices
+  )
+{
+  EFI_STATUS                      Status;
+  VOID                            *OldDxeIplPpi;
+  EFI_PEI_PPI_DESCRIPTOR          *OldDescriptor;
+
+  DEBUG ((DEBUG_INFO | DEBUG_INIT, "The entry of FspNotificationPeim\n"));
+
+  //
+  // Locate old DXE IPL PPI
+  //
+  Status = PeiServicesLocatePpi (
+            &gEfiDxeIplPpiGuid,
+            0,
+            &OldDescriptor,
+            &OldDxeIplPpi
+            );
+  ASSERT_EFI_ERROR (Status);
+
+  //
+  // Re-install the DXE IPL PPI to wait for notify
+  //
+  Status = PeiServicesReInstallPpi (OldDescriptor, &mInstallDxeIplPpi);
+  ASSERT_EFI_ERROR (Status);
+
+  return EFI_SUCCESS;
+}