Update DxeCore to deal PIWG FV device path case if FV contains extension header.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7850 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdeModulePkg/Core/Dxe/FwVolBlock/FwVolBlock.c b/MdeModulePkg/Core/Dxe/FwVolBlock/FwVolBlock.c
index 2584af5f1657bf4bc257d3485a6d8528e1bec153..02b8914ff82ea767295775d21a1caea43013332c 100644 (file)
--- a/MdeModulePkg/Core/Dxe/FwVolBlock/FwVolBlock.c
+++ b/MdeModulePkg/Core/Dxe/FwVolBlock/FwVolBlock.c
@@ -18,33 +18,56 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include "DxeMain.h"\r
 #include "FwVolBlock.h"\r
 \r
-\r
-EFI_FW_VOL_BLOCK_DEVICE  mFwVolBlock = {\r
-  FVB_DEVICE_SIGNATURE,\r
-  NULL,\r
+FV_MEMMAP_DEVICE_PATH mFvMemmapDevicePathTemplate = {\r
   {\r
     {\r
+      HARDWARE_DEVICE_PATH,\r
+      HW_MEMMAP_DP,\r
       {\r
-        HARDWARE_DEVICE_PATH,\r
-        HW_MEMMAP_DP,\r
-        {\r
-          (UINT8)(sizeof (MEMMAP_DEVICE_PATH)),\r
-          (UINT8)(sizeof (MEMMAP_DEVICE_PATH) >> 8)\r
-        }\r
-      },\r
-      EfiMemoryMappedIO,\r
-      (EFI_PHYSICAL_ADDRESS) 0,\r
-      (EFI_PHYSICAL_ADDRESS) 0,\r
+        (UINT8)(sizeof (MEMMAP_DEVICE_PATH)),\r
+        (UINT8)(sizeof (MEMMAP_DEVICE_PATH) >> 8)\r
+      }\r
     },\r
+    EfiMemoryMappedIO,\r
+    (EFI_PHYSICAL_ADDRESS) 0,\r
+    (EFI_PHYSICAL_ADDRESS) 0,\r
+  },\r
+  {\r
+    END_DEVICE_PATH_TYPE,\r
+    END_ENTIRE_DEVICE_PATH_SUBTYPE,\r
     {\r
-      END_DEVICE_PATH_TYPE,\r
-      END_ENTIRE_DEVICE_PATH_SUBTYPE,\r
+      END_DEVICE_PATH_LENGTH,\r
+      0\r
+    }\r
+  }\r
+};\r
+\r
+FV_PIWG_DEVICE_PATH mFvPIWGDevicePathTemplate = {\r
+  {\r
+    {\r
+      MEDIA_DEVICE_PATH,\r
+      MEDIA_PIWG_FW_VOL_DP,\r
       {\r
-        END_DEVICE_PATH_LENGTH,\r
-        0\r
+        (UINT8)(sizeof (MEDIA_FW_VOL_DEVICE_PATH)),\r
+        (UINT8)(sizeof (MEDIA_FW_VOL_DEVICE_PATH) >> 8)\r
       }\r
     },\r
+    { 0 }\r
   },\r
+  {\r
+    END_DEVICE_PATH_TYPE,\r
+    END_ENTIRE_DEVICE_PATH_SUBTYPE,\r
+    {\r
+      END_DEVICE_PATH_LENGTH,\r
+      0\r
+    }\r
+  }\r
+};\r
+\r
+EFI_FW_VOL_BLOCK_DEVICE  mFwVolBlock = {\r
+  FVB_DEVICE_SIGNATURE,\r
+  NULL,\r
+  NULL,\r
   {\r
     FwVolBlockGetAttributes,\r
     (EFI_FVB_SET_ATTRIBUTES)FwVolBlockSetAttributes,\r
@@ -466,6 +489,7 @@ ProduceFVBProtocolOnBuffer (
     CoreFreePool (FvbDev);\r
     return EFI_OUT_OF_RESOURCES;\r
   }\r
+  \r
   //\r
   // Last, fill in the cache with the linear address of the blocks\r
   //\r
@@ -482,11 +506,26 @@ ProduceFVBProtocolOnBuffer (
   }\r
 \r
   //\r
-  // Set up the devicepath\r
+  // Judget whether FV name guid is produced in Fv extension header\r
   //\r
-  FvbDev->DevicePath.MemMapDevPath.StartingAddress = BaseAddress;\r
-  FvbDev->DevicePath.MemMapDevPath.EndingAddress = BaseAddress + FwVolHeader->FvLength - 1;\r
-\r
+  if (FwVolHeader->ExtHeaderOffset == 0) {\r
+    //\r
+    // FV does not contains extension header, then produce MEMMAP_DEVICE_PATH\r
+    //\r
+    FvbDev->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateCopyPool (sizeof (FV_MEMMAP_DEVICE_PATH), &mFvMemmapDevicePathTemplate);\r
+    ((FV_MEMMAP_DEVICE_PATH *) FvbDev->DevicePath)->MemMapDevPath.StartingAddress = BaseAddress;\r
+    ((FV_MEMMAP_DEVICE_PATH *) FvbDev->DevicePath)->MemMapDevPath.EndingAddress   = BaseAddress + FwVolHeader->FvLength - 1;\r
+  } else {\r
+    //\r
+    // FV contains extension header, then produce MEDIA_FW_VOL_DEVICE_PATH\r
+    //\r
+    FvbDev->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateCopyPool (sizeof (FV_PIWG_DEVICE_PATH), &mFvPIWGDevicePathTemplate);\r
+    CopyGuid (\r
+      &((FV_PIWG_DEVICE_PATH *)FvbDev->DevicePath)->FvDevPath.FvName, \r
+      (GUID *)(UINTN)(BaseAddress + FwVolHeader->ExtHeaderOffset)\r
+      );\r
+  }\r
+  \r
   //\r
   //\r
   // Attach FvVolBlock Protocol to new handle\r
@@ -494,7 +533,7 @@ ProduceFVBProtocolOnBuffer (
   Status = CoreInstallMultipleProtocolInterfaces (\r
              &FvbDev->Handle,\r
              &gEfiFirmwareVolumeBlockProtocolGuid,     &FvbDev->FwVolBlockInstance,\r
-             &gEfiDevicePathProtocolGuid,              &FvbDev->DevicePath,\r
+             &gEfiDevicePathProtocolGuid,              FvbDev->DevicePath,\r
              NULL\r
              );\r
 \r

diff --git a/MdeModulePkg/Core/Dxe/FwVolBlock/FwVolBlock.h b/MdeModulePkg/Core/Dxe/FwVolBlock/FwVolBlock.h
index d06beb0385dea920bb58dcb5e00730919d8337e2..e287937f92c286d7519694cc1af5767786fb6901 100644 (file)
--- a/MdeModulePkg/Core/Dxe/FwVolBlock/FwVolBlock.h
+++ b/MdeModulePkg/Core/Dxe/FwVolBlock/FwVolBlock.h
@@ -25,17 +25,23 @@ typedef struct {
   UINTN                       Length;\r
 } LBA_CACHE;\r
 \r
-\r
 typedef struct {\r
   MEMMAP_DEVICE_PATH          MemMapDevPath;\r
   EFI_DEVICE_PATH_PROTOCOL    EndDevPath;\r
-} FV_DEVICE_PATH;\r
+} FV_MEMMAP_DEVICE_PATH;\r
 \r
+//\r
+// UEFI Specification define FV device path format if FV provide name guid in extension header\r
+//\r
+typedef struct {\r
+  MEDIA_FW_VOL_DEVICE_PATH    FvDevPath;\r
+  EFI_DEVICE_PATH_PROTOCOL    EndDevPath;\r
+} FV_PIWG_DEVICE_PATH;\r
 \r
 typedef struct {\r
   UINTN                                 Signature;\r
   EFI_HANDLE                            Handle;\r
-  FV_DEVICE_PATH                        DevicePath;\r
+  EFI_DEVICE_PATH_PROTOCOL              *DevicePath;\r
   EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL    FwVolBlockInstance;\r
   UINTN                                 NumBlocks;\r
   LBA_CACHE                             *LbaCache;\r