Ras2Parser.c

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#include <Library/PrintLib.h>
#include <Library/BaseLib.h>
#include <Library/UefiLib.h>
#include "AcpiParser.h"
#include "AcpiView.h"
 
// Local variables
STATIC CONST UINT16  *Ras2PccDescriptors;
 
STATIC ACPI_DESCRIPTION_HEADER_INFO  AcpiHdrInfo;
 
STATIC CONST ACPI_PARSER  Ras2Parser[] = {
  PARSE_ACPI_HEADER (&AcpiHdrInfo),
  { L"Reserved",                   2,  36, L"0x%x", NULL, NULL,                         NULL, NULL },
  { L"PCC Descriptors",            2,  38, L"%d",   NULL, (VOID **)&Ras2PccDescriptors, NULL, NULL }
};
 
STATIC CONST ACPI_PARSER  Ras2StructurePccDescriptor[] = {
  { L"PCC ID",       1, 0, L"0x%x", NULL, NULL, NULL, NULL },
  { L"Reserved",     1, 1, L"0x%x", NULL, NULL, NULL, NULL },
  { L"Reserved",     1, 2, L"0x%x", NULL, NULL, NULL, NULL },
  { L"Feature Type", 1, 3, L"0x%x", NULL, NULL, NULL, NULL },
  { L"Instance",     4, 4, L"0x%x", NULL, NULL, NULL, NULL }
};
 
STATIC
VOID
DumpPccEntry (
  IN UINT8   *Ptr,
  IN UINT32  Length
  )
{
  ParseAcpi (
    TRUE,
    2,
    "PCC Descriptor Entry",
    Ptr,
    Length,
    PARSER_PARAMS (Ras2StructurePccDescriptor)
    );
}
 
VOID
EFIAPI
ParseAcpiRas2 (
  IN BOOLEAN  Trace,
  IN UINT8    *Ptr,
  IN UINT32   AcpiTableLength,
  IN UINT8    AcpiTableRevision
  )
{
  UINT32  Offset;
 
  if (!Trace) {
    return;
  }
 
  // Parse ACPI Header + RAS2 "fixed" fields
  Offset = ParseAcpi (
             Trace,
             0,
             "RAS2",
             Ptr,
             AcpiTableLength,
             PARSER_PARAMS (Ras2Parser)
             );
 
  // Table is too small to contain data
  if (Offset >= AcpiTableLength) {
    return;
  }
 
  // Loop over rest of table for PCC Entries and dump them
  while (Offset <= (AcpiTableLength - sizeof (EFI_ACPI_RAS2_PCC_DESCRIPTOR))) {
    DumpPccEntry (
      Ptr + Offset,
      sizeof (EFI_ACPI_RAS2_PCC_DESCRIPTOR)
      );
    Offset += sizeof (EFI_ACPI_RAS2_PCC_DESCRIPTOR);
  } // while
}