From: Zhang, Chao B <chao.b.zhang@intel.com>
Date: Tue, 17 May 2016 07:35:21 +0000 (+0800)
Subject: MdeModulePkg: PeiCore: Fix PEI Multiple Sub-FV Support issue
X-Git-Tag: edk2-stable201903~7012
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=7147077b1685ef62353ec4104a902cb37c4e57ee

MdeModulePkg: PeiCore: Fix PEI Multiple Sub-FV Support issue

FirmwareVolmeInfoPpiNotifyCallback is re-enterable during FV process. Since PrivateData->FVCount increases when processing each sub FVs, need to cache Parent FV count in stack before processing any sub FV.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chao Zhang <chao.b.zhang@intel.com>
Reviewed-by: Gao Liming <liming.gao@intel.com>
---

diff --git a/MdeModulePkg/Core/Pei/FwVol/FwVol.c b/MdeModulePkg/Core/Pei/FwVol/FwVol.c
index 8f6e2efcec..6ca41ee16f 100644
--- a/MdeModulePkg/Core/Pei/FwVol/FwVol.c
+++ b/MdeModulePkg/Core/Pei/FwVol/FwVol.c
@@ -2,7 +2,7 @@
   Pei Core Firmware File System service routines.
   
 Copyright (c) 2015 HP Development Company, L.P.
-Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
 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        
@@ -545,7 +545,8 @@ FirmwareVolmeInfoPpiNotifyCallback (
   EFI_PEI_FILE_HANDLE                   FileHandle;
   VOID                                  *DepexData;
   BOOLEAN                               IsFvInfo2;
-  
+  UINTN                                 CurFvCount;
+
   Status       = EFI_SUCCESS;
   PrivateData  = PEI_CORE_INSTANCE_FROM_PS_THIS (PeiServices);
 
@@ -610,10 +611,11 @@ FirmwareVolmeInfoPpiNotifyCallback (
     PrivateData->Fv[PrivateData->FvCount].FvPpi    = FvPpi;
     PrivateData->Fv[PrivateData->FvCount].FvHandle = FvHandle;
     PrivateData->Fv[PrivateData->FvCount].AuthenticationStatus = FvInfo2Ppi.AuthenticationStatus;
+    CurFvCount = PrivateData->FvCount;
     DEBUG ((
       EFI_D_INFO, 
       "The %dth FV start address is 0x%11p, size is 0x%08x, handle is 0x%p\n", 
-      (UINT32) PrivateData->FvCount, 
+      (UINT32) CurFvCount,
       (VOID *) FvInfo2Ppi.FvInfo, 
       FvInfo2Ppi.FvInfoSize,
       FvHandle
@@ -647,8 +649,8 @@ FirmwareVolmeInfoPpiNotifyCallback (
           }
         }
         
-        DEBUG ((EFI_D_INFO, "Found firmware volume Image File %p in FV[%d] %p\n", FileHandle, PrivateData->FvCount - 1, FvHandle));
-        ProcessFvFile (PrivateData, &PrivateData->Fv[PrivateData->FvCount - 1], FileHandle);
+        DEBUG ((EFI_D_INFO, "Found firmware volume Image File %p in FV[%d] %p\n", FileHandle, CurFvCount, FvHandle));
+        ProcessFvFile (PrivateData, &PrivateData->Fv[CurFvCount], FileHandle);
       }
     } while (FileHandle != NULL);
   } else {
@@ -2216,7 +2218,8 @@ ThirdPartyFvPpiNotifyCallback (
   UINTN                        FvIndex;
   EFI_PEI_FILE_HANDLE          FileHandle;
   VOID                         *DepexData;  
-  
+  UINTN                        CurFvCount;
+
   PrivateData  = PEI_CORE_INSTANCE_FROM_PS_THIS (PeiServices);
   FvPpi = (EFI_PEI_FIRMWARE_VOLUME_PPI*) Ppi;
   
@@ -2264,10 +2267,11 @@ ThirdPartyFvPpiNotifyCallback (
     PrivateData->Fv[PrivateData->FvCount].FvPpi    = FvPpi;
     PrivateData->Fv[PrivateData->FvCount].FvHandle = FvHandle;
     PrivateData->Fv[PrivateData->FvCount].AuthenticationStatus = AuthenticationStatus;
+    CurFvCount = PrivateData->FvCount;
     DEBUG ((
       EFI_D_INFO, 
       "The %dth FV start address is 0x%11p, size is 0x%08x, handle is 0x%p\n", 
-      (UINT32) PrivateData->FvCount, 
+      (UINT32) CurFvCount,
       (VOID *) FvInfo, 
       FvInfoSize,
       FvHandle
@@ -2301,8 +2305,8 @@ ThirdPartyFvPpiNotifyCallback (
           }
         }
         
-        DEBUG ((EFI_D_INFO, "Found firmware volume Image File %p in FV[%d] %p\n", FileHandle, PrivateData->FvCount - 1, FvHandle));
-        ProcessFvFile (PrivateData, &PrivateData->Fv[PrivateData->FvCount - 1], FileHandle);
+        DEBUG ((EFI_D_INFO, "Found firmware volume Image File %p in FV[%d] %p\n", FileHandle, CurFvCount, FvHandle));
+        ProcessFvFile (PrivateData, &PrivateData->Fv[CurFvCount], FileHandle);
       }
     } while (FileHandle != NULL);
   } while (TRUE);