Add a lock to protect the critical region in Service APIs for gEfiBlockIoProtocolGuid Protocol to prevent re-entrance of the same API from from different TPL level.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2443 6f19259b-4bc3-4df7-8a09-765794883524

EdkModulePkg/Bus/Pci/IdeBus/Dxe/idebus.c

@@ -1035,6 +1035,9 @@ IDEBlkIoReset (
 {
   IDE_BLK_IO_DEV  *IdeBlkIoDevice;
   EFI_STATUS      Status;
+  EFI_TPL         OldTpl;
+
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);
 
   IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (This);
   //
@@ -1047,11 +1050,13 @@ IDEBlkIoReset (
   //
   if (IdeBlkIoDevice->Type == IdeHardDisk ||
       IdeBlkIoDevice->Type == Ide48bitAddressingHardDisk) {
-    return AtaSoftReset (IdeBlkIoDevice);
+    Status = AtaSoftReset (IdeBlkIoDevice);
+    goto Done;
   }
 
   if (IdeBlkIoDevice->Type == IdeUnknown) {
-    return EFI_DEVICE_ERROR;
+    Status = EFI_DEVICE_ERROR;
+    goto Done;
   }
   
   //
@@ -1062,6 +1067,8 @@ IDEBlkIoReset (
     Status = AtaSoftReset (IdeBlkIoDevice);
   }
 
+Done:
+  gBS->RestoreTPL (OldTpl);
   return Status;
 }
 
@@ -1089,6 +1096,10 @@ IDEBlkIoReadBlocks (
 // TODO:    EFI_DEVICE_ERROR - add return value to function comment
 {
   IDE_BLK_IO_DEV  *IdeBlkIoDevice;
+  EFI_STATUS      Status;
+  EFI_TPL         OldTpl;
+
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);
 
   IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (This);
 
@@ -1102,23 +1113,25 @@ IDEBlkIoReadBlocks (
   //
   if (IdeBlkIoDevice->Type == IdeHardDisk ||
       IdeBlkIoDevice->Type == Ide48bitAddressingHardDisk) {
-    return AtaBlkIoReadBlocks (
+    Status = AtaBlkIoReadBlocks (
             IdeBlkIoDevice,
             MediaId,
             LBA,
             BufferSize,
             Buffer
             );
+    goto Done;
   }
 
   if (IdeBlkIoDevice->Type == IdeUnknown) {
-    return EFI_DEVICE_ERROR;
+    Status = EFI_DEVICE_ERROR;
+    goto Done;
   }
   
   //
   // for ATAPI device, using ATAPI read block's mechanism
   //
-  return AtapiBlkIoReadBlocks (
+  Status = AtapiBlkIoReadBlocks (
           IdeBlkIoDevice,
           MediaId,
           LBA,
@@ -1126,6 +1139,10 @@ IDEBlkIoReadBlocks (
           Buffer
           );
 
+Done:
+  gBS->RestoreTPL (OldTpl);
+
+  return Status;
 }
 
 /**
@@ -1152,7 +1169,11 @@ IDEBlkIoWriteBlocks (
 // TODO:    EFI_DEVICE_ERROR - add return value to function comment
 {
   IDE_BLK_IO_DEV  *IdeBlkIoDevice;
+  EFI_STATUS      Status;
+  EFI_TPL         OldTpl;
 
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);
+  
   IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (This);
   //
   // Requery IDE IO resources in case of the switch of native and legacy modes
@@ -1165,29 +1186,35 @@ IDEBlkIoWriteBlocks (
   if (IdeBlkIoDevice->Type == IdeHardDisk ||
       IdeBlkIoDevice->Type == Ide48bitAddressingHardDisk) {        
 
-    return AtaBlkIoWriteBlocks (
+    Status = AtaBlkIoWriteBlocks (
             IdeBlkIoDevice,
             MediaId,
             LBA,
             BufferSize,
             Buffer
             );
+    goto Done;
   }
 
   if (IdeBlkIoDevice->Type == IdeUnknown) {
-    return EFI_DEVICE_ERROR;
+    Status = EFI_DEVICE_ERROR;
+    goto Done;
   }
   
   //
   // for ATAPI device, using ATAPI write block's mechanism
   //
-  return AtapiBlkIoWriteBlocks (
+  Status = AtapiBlkIoWriteBlocks (
           IdeBlkIoDevice,
           MediaId,
           LBA,
           BufferSize,
           Buffer
           );
+  
+Done:
+  gBS->RestoreTPL (OldTpl);
+  return Status;
 }
 
 //

EdkModulePkg/Bus/Scsi/ScsiDisk/Dxe/ScsiDisk.c

@@ -1,6 +1,6 @@
 /*++
 
-Copyright (c) 2006, Intel Corporation                                                         
+Copyright (c) 2006 - 2007, 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        
@@ -332,17 +332,22 @@ Returns:
 {
   SCSI_DISK_DEV *ScsiDiskDevice;
   EFI_STATUS    Status;
+  EFI_TPL       OldTpl;
+
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);
 
   ScsiDiskDevice  = SCSI_DISK_DEV_FROM_THIS (This);
 
   Status          = ScsiDiskDevice->ScsiIo->ResetDevice (ScsiDiskDevice->ScsiIo);
 
   if (!ExtendedVerification) {
-    return Status;
+    goto Done;
   }
 
   Status = ScsiDiskDevice->ScsiIo->ResetBus (ScsiDiskDevice->ScsiIo);
 
+Done:
+  gBS->RestoreTPL (OldTpl);
   return Status;
 }
 
@@ -389,6 +394,7 @@ Returns:
   UINTN               BlockSize;
   UINTN               NumberOfBlocks;
   BOOLEAN             MediaChange;
+  EFI_TPL             OldTpl;
 
   MediaChange = FALSE;
   if (!Buffer) {
@@ -399,13 +405,16 @@ Returns:
     return EFI_SUCCESS;
   }
 
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);
+
   ScsiDiskDevice = SCSI_DISK_DEV_FROM_THIS (This);
 
   if (!IsDeviceFixed (ScsiDiskDevice)) {
 
     Status = ScsiDiskDetectMedia (ScsiDiskDevice, FALSE, &MediaChange);
     if (EFI_ERROR (Status)) {
-      return EFI_DEVICE_ERROR;
+      Status = EFI_DEVICE_ERROR;
+      goto Done;
     }
 
     if (MediaChange) {
@@ -426,27 +435,33 @@ Returns:
   NumberOfBlocks  = BufferSize / BlockSize;
 
   if (!(Media->MediaPresent)) {
-    return EFI_NO_MEDIA;
+    Status = EFI_NO_MEDIA;
+    goto Done;
   }
 
   if (MediaId != Media->MediaId) {
-    return EFI_MEDIA_CHANGED;
+    Status = EFI_MEDIA_CHANGED;
+    goto Done;
   }
 
   if (BufferSize % BlockSize != 0) {
-    return EFI_BAD_BUFFER_SIZE;
+    Status = EFI_BAD_BUFFER_SIZE;
+    goto Done;
   }
 
   if (LBA > Media->LastBlock) {
-    return EFI_INVALID_PARAMETER;
+    Status = EFI_INVALID_PARAMETER;
+    goto Done;
   }
 
   if ((LBA + NumberOfBlocks - 1) > Media->LastBlock) {
-    return EFI_INVALID_PARAMETER;
+    Status = EFI_INVALID_PARAMETER;
+    goto Done;
   }
 
   if ((Media->IoAlign > 1) && (((UINTN) Buffer & (Media->IoAlign - 1)) != 0)) {
-    return EFI_INVALID_PARAMETER;
+    Status = EFI_INVALID_PARAMETER;
+    goto Done;
   }
   
   //
@@ -455,6 +470,8 @@ Returns:
   //
   Status = ScsiDiskReadSectors (ScsiDiskDevice, Buffer, LBA, NumberOfBlocks);
 
+Done:
+  gBS->RestoreTPL (OldTpl);
   return Status;
 }
 
@@ -501,6 +518,7 @@ Returns:
   UINTN               BlockSize;
   UINTN               NumberOfBlocks;
   BOOLEAN             MediaChange;
+  EFI_TPL             OldTpl;
 
   MediaChange = FALSE;
   if (!Buffer) {
@@ -511,13 +529,16 @@ Returns:
     return EFI_SUCCESS;
   }
 
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);
+
   ScsiDiskDevice = SCSI_DISK_DEV_FROM_THIS (This);
 
   if (!IsDeviceFixed (ScsiDiskDevice)) {
 
     Status = ScsiDiskDetectMedia (ScsiDiskDevice, FALSE, &MediaChange);
     if (EFI_ERROR (Status)) {
-      return EFI_DEVICE_ERROR;
+      Status = EFI_DEVICE_ERROR;
+      goto Done;
     }
 
     if (MediaChange) {
@@ -538,27 +559,33 @@ Returns:
   NumberOfBlocks  = BufferSize / BlockSize;
 
   if (!(Media->MediaPresent)) {
-    return EFI_NO_MEDIA;
+    Status = EFI_NO_MEDIA;
+    goto Done;
   }
 
   if (MediaId != Media->MediaId) {
-    return EFI_MEDIA_CHANGED;
+    Status = EFI_MEDIA_CHANGED;
+    goto Done;
   }
 
   if (BufferSize % BlockSize != 0) {
-    return EFI_BAD_BUFFER_SIZE;
+    Status = EFI_BAD_BUFFER_SIZE;
+    goto Done;
   }
 
   if (LBA > Media->LastBlock) {
-    return EFI_INVALID_PARAMETER;
+    Status = EFI_INVALID_PARAMETER;
+    goto Done;
   }
 
   if ((LBA + NumberOfBlocks - 1) > Media->LastBlock) {
-    return EFI_INVALID_PARAMETER;
+    Status = EFI_INVALID_PARAMETER;
+    goto Done;
   }
 
   if ((Media->IoAlign > 1) && (((UINTN) Buffer & (Media->IoAlign - 1)) != 0)) {
-    return EFI_INVALID_PARAMETER;
+    Status = EFI_INVALID_PARAMETER;
+    goto Done;
   }
   //
   // if all the parameters are valid, then perform read sectors command
@@ -566,6 +593,9 @@ Returns:
   //
   Status = ScsiDiskWriteSectors (ScsiDiskDevice, Buffer, LBA, NumberOfBlocks);
 
+Done:
+  gBS->RestoreTPL (OldTpl);
+  
   return Status;
 }
 

EdkModulePkg/Bus/Usb/UsbMassStorage/Dxe/UsbMassStorage.c

@@ -1,6 +1,6 @@
 /*++
 
-Copyright (c) 2006, Intel Corporation
+Copyright (c) 2006 - 2007, 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
@@ -350,6 +350,9 @@ USBFloppyReset (
   USB_FLOPPY_DEV          *UsbFloppyDevice;
   EFI_USB_ATAPI_PROTOCOL  *UsbAtapiInterface;
   EFI_STATUS              Status;
+  EFI_TPL                 OldTpl;
+
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);
 
   UsbFloppyDevice   = USB_FLOPPY_DEV_FROM_THIS (This);
 
@@ -360,6 +363,8 @@ USBFloppyReset (
   //
   Status = UsbAtapiInterface->UsbAtapiReset (UsbAtapiInterface, ExtendedVerification);
 
+  gBS->RestoreTPL (OldTpl);
+
   return Status;
 }
 
@@ -404,6 +409,7 @@ USBFloppyReadBlocks (
   UINTN               BlockSize;
   UINTN               NumberOfBlocks;
   BOOLEAN             MediaChange;
+  EFI_TPL             OldTpl;
 
   Status          = EFI_SUCCESS;
   MediaChange     = FALSE;
@@ -412,16 +418,16 @@ USBFloppyReadBlocks (
   //
   // Check parameters
   //
-  if (!Buffer) {
+  if (Buffer == NULL) {
-    Status = EFI_INVALID_PARAMETER;
+    return EFI_INVALID_PARAMETER;
-    goto Done;
   }
 
   if (BufferSize == 0) {
-    Status = EFI_SUCCESS;
+    return EFI_SUCCESS;
-    goto Done;
   }
 
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);
+
   UsbFloppyTestUnitReady (UsbFloppyDevice);
 
   Status = UsbFloppyDetectMedia (UsbFloppyDevice, &MediaChange);
@@ -485,6 +491,7 @@ USBFloppyReadBlocks (
     if (EFI_ERROR (Status)) {
       This->Reset (This, TRUE);
       Status = EFI_DEVICE_ERROR;
+      goto Done;
     }
 
     if (NumberOfBlocks > BLOCK_UNIT) {
@@ -499,6 +506,7 @@ USBFloppyReadBlocks (
  }
 
  Done:
+  gBS->RestoreTPL (OldTpl);
   return Status;
 }
 
@@ -546,6 +554,7 @@ USBFloppyWriteBlocks (
   UINTN               BlockSize;
   UINTN               NumberOfBlocks;
   BOOLEAN             MediaChange;
+  EFI_TPL             OldTpl;
 
   Status          = EFI_SUCCESS;
   MediaChange     = FALSE;
@@ -555,16 +564,16 @@ USBFloppyWriteBlocks (
   //
   // Check parameters
   //
-  if (!Buffer) {
+  if (Buffer == NULL) {
-    Status = EFI_INVALID_PARAMETER;
+    return EFI_INVALID_PARAMETER;
-    goto Done;
   }
 
   if (BufferSize == 0) {
-    Status = EFI_SUCCESS;
+    return EFI_SUCCESS;
-    goto Done;
   }
 
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);
+
   UsbFloppyTestUnitReady (UsbFloppyDevice);
 
   Status = UsbFloppyDetectMedia (UsbFloppyDevice, &MediaChange);
@@ -633,6 +642,7 @@ USBFloppyWriteBlocks (
     if (EFI_ERROR (Status)) {
       This->Reset (This, TRUE);
       Status = EFI_DEVICE_ERROR;
+      goto Done;
     }
 
     if (NumberOfBlocks > BLOCK_UNIT) {
@@ -647,7 +657,7 @@ USBFloppyWriteBlocks (
  }
 
 Done:
-
+  gBS->RestoreTPL (OldTpl);
   return Status;
 }