ApmtParser.c

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#include <IndustryStandard/Acpi.h>
#include <IndustryStandard/ArmPerformanceMonitoringUnitTable.h>
#include <Library/UefiLib.h>
#include "AcpiParser.h"
#include "AcpiTableParser.h"
 
// Local variables
STATIC ACPI_DESCRIPTION_HEADER_INFO  AcpiHdrInfo;
STATIC CONST UINT16                  *NodeLength;
 
STATIC CONST ACPI_PARSER  ApmtParser[] = {
  PARSE_ACPI_HEADER (&AcpiHdrInfo)
};
 
STATIC CONST ACPI_PARSER  ArmPmuNodeParser[] = {
  { L"Length",                   2, 0,  L"0x%x",  NULL, (VOID **)&NodeLength, NULL, NULL },
  { L"Node flags",               1, 2,  L"0x%x",  NULL, NULL,                 NULL, NULL },
  { L"Node type",                1, 3,  L"0x%x",  NULL, NULL,                 NULL, NULL },
  { L"Identifier",               4, 4,  L"0x%x",  NULL, NULL,                 NULL, NULL },
  { L"Node Instance primary",    8, 8,  L"0x%lx", NULL, NULL,                 NULL, NULL },
  { L"Node Instance secondary",  4, 16, L"0x%x",  NULL, NULL,                 NULL, NULL },
  { L"Base address 0",           8, 20, L"0x%lx", NULL, NULL,                 NULL, NULL },
  { L"Base address 1",           8, 28, L"0x%lx", NULL, NULL,                 NULL, NULL },
  { L"Overflow interrupt",       4, 36, L"0x%x",  NULL, NULL,                 NULL, NULL },
  { L"Reserved1",                4, 40, L"0x%x",  NULL, NULL,                 NULL, NULL },
  { L"Overflow interrupt flags", 4, 44, L"0x%x",  NULL, NULL,                 NULL, NULL },
  { L"Processor affinity",       4, 48, L"0x%x",  NULL, NULL,                 NULL, NULL },
  { L"Implementation ID",        4, 52, L"0x%x",  NULL, NULL,                 NULL, NULL }
};
 
VOID
EFIAPI
ParseAcpiApmt (
  IN BOOLEAN  Trace,
  IN UINT8    *Ptr,
  IN UINT32   AcpiTableLength,
  IN UINT8    AcpiTableRevision
  )
{
  UINT32  Offset;
 
  if (!Trace) {
    return;
  }
 
  ParseAcpi (
    Trace,
    0,
    "APMT",
    Ptr,
    AcpiTableLength,
    PARSER_PARAMS (ApmtParser)
    );
  Offset = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
 
  while (Offset < AcpiTableLength) {
    ParseAcpi (
      Trace,
      2,
      "Arm PMU node",
      Ptr + Offset,
      (AcpiTableLength - Offset),
      PARSER_PARAMS (ArmPmuNodeParser)
      );
    if (NodeLength == NULL) {
      Print (
        L"ERROR: Insufficient remaining table buffer length to read the " \
        L"Node structure. Length = %d.\n",
        (AcpiTableLength - Offset)
        );
      IncrementErrorCount ();
      break;
    }
 
    Offset += *NodeLength;
  }
}