Following UEFI spec, update SmbiosDxe to use EfiRuntimeServicesData to put SMBIOS table. Update LegacyBiosDxe to move SMBIOS table to reserved memory for backward compatibility.

Signed-off-by: Elvin Li <elvin.li@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14932 6f19259b-4bc3-4df7-8a09-765794883524

4 files changed, 193 insertions, 14 deletions

diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBios.c b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBios.c
index 99a76c9f21..452487b66c 100644
--- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBios.c
+++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBios.c
@@ -1,6 +1,6 @@
 /** @file

 

-Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>

+Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>

 

 This program and the accompanying materials

 are licensed and made available under the terms and conditions

@@ -29,6 +29,18 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 //

 LEGACY_BIOS_INSTANCE  mPrivateData;

 

+//

+// The SMBIOS table in EfiRuntimeServicesData memory

+//

+VOID                  *mRuntimeSmbiosEntryPoint = NULL;

+

+//

+// The SMBIOS table in EfiReservedMemoryType memory

+//

+EFI_PHYSICAL_ADDRESS  mReserveSmbiosEntryPoint = 0;

+EFI_PHYSICAL_ADDRESS  mStructureTableAddress   = 0;

+UINTN                 mStructureTablePages     = 0;

+

 /**

   Do an AllocatePages () of type AllocateMaxAddress for EfiBootServicesCode

   memory.

@@ -662,6 +674,98 @@ GetPciInterfaceVersion (
 }

 

 /**

+  Callback function to calculate SMBIOS table size, and allocate memory for SMBIOS table.

+  SMBIOS table will be copied into EfiReservedMemoryType memory in legacy boot path.

+

+  @param  Event                 Event whose notification function is being invoked.

+  @param  Context               The pointer to the notification function's context,

+                                which is implementation-dependent.

+

+**/

+VOID

+EFIAPI

+InstallSmbiosEventCallback (

+  IN EFI_EVENT                Event,

+  IN VOID                     *Context

+  )

+{

+  EFI_STATUS                  Status;

+  SMBIOS_TABLE_ENTRY_POINT    *EntryPointStructure;

+  

+  //

+  // Get SMBIOS table from EFI configuration table

+  //

+  Status = EfiGetSystemConfigurationTable (

+            &gEfiSmbiosTableGuid,

+            &mRuntimeSmbiosEntryPoint

+            );

+  if (EFI_ERROR (Status)) {

+    return;

+  }

+  

+  EntryPointStructure = (SMBIOS_TABLE_ENTRY_POINT *) mRuntimeSmbiosEntryPoint;

+

+  //

+  // Allocate memory for SMBIOS Entry Point Structure.

+  // CSM framework spec requires SMBIOS table below 4GB in EFI_TO_COMPATIBILITY16_BOOT_TABLE.

+  //

+  if (mReserveSmbiosEntryPoint == 0) {

+    //

+    // Entrypoint structure with fixed size is allocated only once.

+    //

+    mReserveSmbiosEntryPoint = SIZE_4GB - 1;

+    Status = gBS->AllocatePages (

+                    AllocateMaxAddress,

+                    EfiReservedMemoryType,

+                    EFI_SIZE_TO_PAGES ((UINTN) (EntryPointStructure->EntryPointLength)),

+                    &mReserveSmbiosEntryPoint

+                    );

+    if (EFI_ERROR (Status)) {

+      mReserveSmbiosEntryPoint = 0;

+      return;

+    }

+    DEBUG ((EFI_D_INFO, "Allocate memory for Smbios Entry Point Structure\n"));

+  }

+  

+  if ((mStructureTableAddress != 0) && 

+      (mStructureTablePages < (UINTN) EFI_SIZE_TO_PAGES (EntryPointStructure->TableLength))) {

+    //

+    // If original buffer is not enough for the new SMBIOS table, free original buffer and re-allocate

+    //

+    gBS->FreePages (mStructureTableAddress, mStructureTablePages);

+    mStructureTableAddress = 0;

+    mStructureTablePages   = 0;

+    DEBUG ((EFI_D_INFO, "Original size is not enough. Re-allocate the memory.\n"));

+  }

+  

+  if (mStructureTableAddress == 0) {

+    //

+    // Allocate reserved memory below 4GB.

+    // Smbios spec requires the structure table is below 4GB.

+    //

+    mStructureTableAddress = SIZE_4GB - 1;

+    mStructureTablePages   = EFI_SIZE_TO_PAGES (EntryPointStructure->TableLength);

+    Status = gBS->AllocatePages (

+                    AllocateMaxAddress,

+                    EfiReservedMemoryType,

+                    mStructureTablePages,

+                    &mStructureTableAddress

+                    );

+    if (EFI_ERROR (Status)) {

+      gBS->FreePages (

+        mReserveSmbiosEntryPoint, 

+        EFI_SIZE_TO_PAGES ((UINTN) (EntryPointStructure->EntryPointLength))

+        );

+      mReserveSmbiosEntryPoint = 0;

+      mStructureTableAddress   = 0;

+      mStructureTablePages     = 0;

+      return;

+    }

+    DEBUG ((EFI_D_INFO, "Allocate memory for Smbios Structure Table\n"));

+  }

+}

+

+/**

   Install Driver to produce Legacy BIOS protocol.

 

   @param  ImageHandle  Handle of driver image.

@@ -697,6 +801,7 @@ LegacyBiosInstall (
   EFI_GCD_MEMORY_SPACE_DESCRIPTOR    Descriptor;

   UINT64                             Length;

   UINT8                              *SecureBoot;

+  EFI_EVENT                          InstallSmbiosEvent;

 

   //

   // Load this driver's image to memory

@@ -1009,6 +1114,24 @@ LegacyBiosInstall (
   // Save EFI value

   //

   Private->ThunkSeg = (UINT16) (EFI_SEGMENT (IntRedirCode));

+  

+  //

+  // Allocate reserved memory for SMBIOS table used in legacy boot if SMBIOS table exists

+  //

+  InstallSmbiosEventCallback (NULL, NULL);

+

+  //

+  // Create callback function to update the size of reserved memory after LegacyBiosDxe starts

+  //

+  Status = gBS->CreateEventEx (

+                  EVT_NOTIFY_SIGNAL,

+                  TPL_NOTIFY,

+                  InstallSmbiosEventCallback,

+                  NULL,

+                  &gEfiSmbiosTableGuid,

+                  &InstallSmbiosEvent

+                  );

+  ASSERT_EFI_ERROR (Status);  

 

   //

   // Make a new handle and install the protocol

diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosDxe.inf b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosDxe.inf
index a5ad0dfd26..e3084e601f 100644
--- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosDxe.inf
+++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosDxe.inf
@@ -3,7 +3,7 @@
 #

 # This driver installs Legacy Bios Protocol to support CSM module work in EFI system.

 #

-# Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>

+# Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>

 #

 # This program and the accompanying materials

 # are licensed and made available under the terms and conditions

@@ -103,6 +103,7 @@
 

 [Guids]

   gEfiDiskInfoIdeInterfaceGuid                  # ALWAYS_CONSUMED

+  gEfiSmbiosTableGuid                           # ALWAYS_CONSUMED

   gEfiLegacyBiosGuid                            # ALWAYS_PRODUCED

 

 [Guids.IA32]

diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h
index d60851a42c..cc893a49a7 100644
--- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h
+++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h
@@ -19,6 +19,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 

 #include <FrameworkDxe.h>

 #include <IndustryStandard/Pci.h>

+#include <IndustryStandard/SmBios.h>

 

 #include <Guid/SmBios.h>

 #include <Guid/Acpi.h>

diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c
index dfdac356cf..bf27605504 100644
--- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c
+++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c
@@ -1,6 +1,6 @@
 /** @file

 

-Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>

+Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>

 

 This program and the accompanying materials

 are licensed and made available under the terms and conditions

@@ -33,6 +33,10 @@ UINT64              mLowWater           = 0xffffffffffffffffULL;
 

 extern BBS_TABLE           *mBbsTable;

 

+extern VOID                  *mRuntimeSmbiosEntryPoint;

+extern EFI_PHYSICAL_ADDRESS  mReserveSmbiosEntryPoint;

+extern EFI_PHYSICAL_ADDRESS  mStructureTableAddress;

+

 /**

   Print the BBS Table.

 

@@ -777,6 +781,63 @@ LegacyGetDataOrTable (
   return EFI_SUCCESS;

 }

 

+/**

+  Copy SMBIOS table to EfiReservedMemoryType of memory for legacy boot.

+

+**/

+VOID

+CreateSmbiosTableInReservedMemory (

+  VOID

+  )

+{

+  SMBIOS_TABLE_ENTRY_POINT    *EntryPointStructure;

+  

+  if ((mRuntimeSmbiosEntryPoint == NULL) || 

+      (mReserveSmbiosEntryPoint == 0) || 

+      (mStructureTableAddress == 0)) {

+    return;

+  }

+  

+  EntryPointStructure = (SMBIOS_TABLE_ENTRY_POINT *) mRuntimeSmbiosEntryPoint;

+  

+  //

+  // Copy SMBIOS Entry Point Structure

+  //

+  CopyMem (

+    (VOID *)(UINTN) mReserveSmbiosEntryPoint,

+    EntryPointStructure,

+    EntryPointStructure->EntryPointLength

+  );

+  

+  //

+  // Copy SMBIOS Structure Table into EfiReservedMemoryType memory

+  //

+  CopyMem (

+    (VOID *)(UINTN) mStructureTableAddress,

+    (VOID *)(UINTN) EntryPointStructure->TableAddress,

+    EntryPointStructure->TableLength

+  );

+  

+  //

+  // Update TableAddress in Entry Point Structure

+  //

+  EntryPointStructure = (SMBIOS_TABLE_ENTRY_POINT *)(UINTN) mReserveSmbiosEntryPoint;

+  EntryPointStructure->TableAddress = (UINT32)(UINTN) mStructureTableAddress;

+  

+  //

+  // Fixup checksums in the Entry Point Structure

+  //

+  EntryPointStructure->IntermediateChecksum = 0;

+  EntryPointStructure->EntryPointStructureChecksum = 0;

+

+  EntryPointStructure->IntermediateChecksum = 

+    CalculateCheckSum8 (

+      (UINT8 *) EntryPointStructure + OFFSET_OF (SMBIOS_TABLE_ENTRY_POINT, IntermediateAnchorString), 

+      EntryPointStructure->EntryPointLength - OFFSET_OF (SMBIOS_TABLE_ENTRY_POINT, IntermediateAnchorString)

+      );

+  EntryPointStructure->EntryPointStructureChecksum =

+    CalculateCheckSum8 ((UINT8 *) EntryPointStructure, EntryPointStructure->EntryPointLength);

+}

 

 /**

   Assign drive number to legacy HDD drives prior to booting an EFI

@@ -815,7 +876,6 @@ GenericLegacyBoot (
   EFI_HANDLE                        IdeController;

   UINTN                             HandleCount;

   EFI_HANDLE                        *HandleBuffer;

-  VOID                              *SmbiosTable;

   VOID                              *AcpiTable;

   UINTN                             ShadowAddress;

   UINT32                            Granularity;

@@ -904,21 +964,15 @@ GenericLegacyBoot (
       );

     Private->Legacy16Table->E820Length = (UINT32) CopySize;

   }

-  //

-  // Get SMBIOS and ACPI table pointers

-  //

-  SmbiosTable = NULL;

-  EfiGetSystemConfigurationTable (

-    &gEfiSmbiosTableGuid,

-    &SmbiosTable

-    );

+

   //

   // We do not ASSERT if SmbiosTable not found. It is possbile that a platform does not produce SmbiosTable.

   //

-  if (SmbiosTable == NULL) {

+  if (mReserveSmbiosEntryPoint == 0) {

     DEBUG ((EFI_D_INFO, "Smbios table is not found!\n"));

   }

-  EfiToLegacy16BootTable->SmbiosTable = (UINT32)(UINTN)SmbiosTable;

+  CreateSmbiosTableInReservedMemory ();

+  EfiToLegacy16BootTable->SmbiosTable = (UINT32)(UINTN)mReserveSmbiosEntryPoint;

 

   AcpiTable = NULL;

   Status = EfiGetSystemConfigurationTable (