DsdtParser.c

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#include <IndustryStandard/Acpi.h>
#include <Library/UefiLib.h>
#include "AcpiParser.h"
#include "AcpiTableParser.h"
 
VOID
EFIAPI
ParseAcpiDsdt (
  IN BOOLEAN  Trace,
  IN UINT8    *Ptr,
  IN UINT32   AcpiTableLength,
  IN UINT8    AcpiTableRevision
  )
{
  if (!Trace) {
    return;
  }
 
  DumpAcpiHeader (Ptr);
 
  // As per 19.6.29 in the version 6.4 of the ACPI spec, a revision less than 2
  // restricts integers to 32 bit width. This may not be intended, raise a
  // warning
 #if defined (MDE_CPU_AARCH64) || defined (MDE_CPU_ARM)
  if (AcpiTableRevision < 2) {
    IncrementWarningCount ();
    Print (
      L"WARNING: DSDT Table Revision less than 2. Integer width restricted to "
      L"32 bits. Table Revision = %d.\n",
      AcpiTableRevision
      );
    return;
  }
 
 #endif
}