UefiCpuPkg: Move AsmRelocateApLoopStart from Mpfuncs.nasm to AmdSev.nasm

[mirror_edk2.git] / ShellPkg / Library / UefiShellAcpiViewCommandLib / Parsers / Xsdt / XsdtParser.c

/** @file\r
  XSDT table parser\r
\r
  Copyright (c) 2016 - 2019, ARM Limited. All rights reserved.\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
  @par Reference(s):\r
    - ACPI 6.2 Specification - Errata A, September 2017\r
**/\r
\r
#include <IndustryStandard/Acpi.h>\r
#include <Library/UefiLib.h>\r
#include <Library/PrintLib.h>\r
#include "AcpiParser.h"\r
#include "AcpiTableParser.h"\r
\r
// Local variables\r
STATIC ACPI_DESCRIPTION_HEADER_INFO  AcpiHdrInfo;\r
\r
/** An ACPI_PARSER array describing the ACPI XSDT table.\r
*/\r
STATIC CONST ACPI_PARSER  XsdtParser[] = {\r
  PARSE_ACPI_HEADER (&AcpiHdrInfo)\r
};\r
\r
/**\r
  Get the ACPI XSDT header info.\r
**/\r
CONST ACPI_DESCRIPTION_HEADER_INFO *\r
EFIAPI\r
GetAcpiXsdtHeaderInfo (\r
  VOID\r
  )\r
{\r
  return &AcpiHdrInfo;\r
}\r
\r
/**\r
  This function parses the ACPI XSDT table and optionally traces the ACPI table fields.\r
\r
  This function also performs validation of the XSDT table.\r
\r
  @param [in] Trace              If TRUE, trace the ACPI fields.\r
  @param [in] Ptr                Pointer to the start of the buffer.\r
  @param [in] AcpiTableLength    Length of the ACPI table.\r
  @param [in] AcpiTableRevision  Revision of the ACPI table.\r
**/\r
VOID\r
EFIAPI\r
ParseAcpiXsdt (\r
  IN BOOLEAN  Trace,\r
  IN UINT8    *Ptr,\r
  IN UINT32   AcpiTableLength,\r
  IN UINT8    AcpiTableRevision\r
  )\r
{\r
  UINT32  Offset;\r
  UINT32  TableOffset;\r
  UINT64  *TablePointer;\r
  UINTN   EntryIndex;\r
  CHAR16  Buffer[32];\r
\r
  Offset = ParseAcpi (\r
             Trace,\r
             0,\r
             "XSDT",\r
             Ptr,\r
             AcpiTableLength,\r
             PARSER_PARAMS (XsdtParser)\r
             );\r
\r
  TableOffset = Offset;\r
\r
  if (Trace) {\r
    EntryIndex   = 0;\r
    TablePointer = (UINT64 *)(Ptr + TableOffset);\r
    while (Offset < AcpiTableLength) {\r
      CONST UINT32  *Signature;\r
      CONST UINT32  *Length;\r
      CONST UINT8   *Revision;\r
\r
      if ((UINT64 *)(UINTN)(*TablePointer) != NULL) {\r
        UINT8  *SignaturePtr;\r
\r
        ParseAcpiHeader (\r
          (UINT8 *)(UINTN)(*TablePointer),\r
          &Signature,\r
          &Length,\r
          &Revision\r
          );\r
\r
        SignaturePtr = (UINT8 *)Signature;\r
\r
        UnicodeSPrint (\r
          Buffer,\r
          sizeof (Buffer),\r
          L"Entry[%d] - %c%c%c%c",\r
          EntryIndex++,\r
          SignaturePtr[0],\r
          SignaturePtr[1],\r
          SignaturePtr[2],\r
          SignaturePtr[3]\r
          );\r
      } else {\r
        UnicodeSPrint (\r
          Buffer,\r
          sizeof (Buffer),\r
          L"Entry[%d]",\r
          EntryIndex++\r
          );\r
      }\r
\r
      PrintFieldName (2, Buffer);\r
      Print (L"0x%lx\n", *TablePointer);\r
\r
      // Validate the table pointers are not NULL\r
      if ((UINT64 *)(UINTN)(*TablePointer) == NULL) {\r
        IncrementErrorCount ();\r
        Print (\r
          L"ERROR: Invalid table entry at 0x%lx, table address is 0x%lx\n",\r
          TablePointer,\r
          *TablePointer\r
          );\r
      }\r
\r
      Offset += sizeof (UINT64);\r
      TablePointer++;\r
    } // while\r
  }\r
\r
  // Process the tables\r
  Offset       = TableOffset;\r
  TablePointer = (UINT64 *)(Ptr + TableOffset);\r
  while (Offset < AcpiTableLength) {\r
    if ((UINT64 *)(UINTN)(*TablePointer) != NULL) {\r
      ProcessAcpiTable ((UINT8 *)(UINTN)(*TablePointer));\r
    }\r
\r
    Offset += sizeof (UINT64);\r
    TablePointer++;\r
  } // while\r
}\r