Enhance to follow UEFI2.3 spec - the EFI_ACPI_TABLE_PROTOCOL will ensure that the checksum field is correct for both the RSDT/XSDT table and the table being installed through the AcpiTableBuffer parameter.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10655 6f19259b-4bc3-4df7-8a09-765794883524
2010-07-16 04:31:02 +00:00 · 2010-07-16 04:31:02 +00:00 · 4196f91ec0
parent 3ea3ff88e3
commit 4196f91ec0
1 changed files with 7 additions and 1 deletions
--- a/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableProtocol.c
+++ b/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableProtocol.c
@ -330,7 +330,13 @@ InstallAcpiTable (

  Length   = ((EFI_ACPI_COMMON_HEADER *) AcpiTableBuffer)->Length;
  Checksum = CalculateCheckSum8 ((UINT8 *)AcpiTableBuffer, Length);
-  ASSERT (Checksum == 0);
+  if (Checksum != 0) {
+    AcpiPlatformChecksum (
+      (VOID *)AcpiTableBuffer,
+      (UINTN)Length,
+      OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER, Checksum)
+      );
+  }

  //
  // Get the instance of the ACPI table protocol