Unix version of EFI emulator

[mirror_edk2.git] / EdkUnixPkg / Pei / AutoScan / UnixAutoScan.c

/*++\r
\r
Copyright (c) 2006, Intel Corporation                                                         \r
All rights reserved. This program and the accompanying materials                          \r
are licensed and made available under the terms and conditions of the BSD License         \r
which accompanies this distribution.  The full text of the license may be found at        \r
http://opensource.org/licenses/bsd-license.php                                            \r
                                                                                          \r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
\r
Module Name:\r
  UnixAutoscan.c\r
\r
Abstract:\r
  This PEIM to abstract memory auto-scan in an Unix environment.\r
\r
Revision History\r
\r
--*/\r
\r
EFI_STATUS\r
EFIAPI\r
PeimInitializeUnixAutoScan (\r
  IN EFI_FFS_FILE_HEADER       *FfsHeader,\r
  IN EFI_PEI_SERVICES          **PeiServices\r
  )\r
/*++\r
\r
Routine Description:\r
  Perform a call-back into the SEC simulator to get a memory value\r
\r
Arguments:\r
  FfsHeader   - General purpose data available to every PEIM\r
  PeiServices - General purpose services available to every PEIM.\r
    \r
Returns:\r
  None\r
\r
--*/\r
{\r
  EFI_STATUS                  Status;\r
  EFI_PEI_PPI_DESCRIPTOR      *PpiDescriptor;\r
  PEI_UNIX_AUTOSCAN_PPI      *PeiUnixService;\r
  UINT64                      MemorySize;\r
  EFI_PHYSICAL_ADDRESS        MemoryBase;\r
  PEI_BASE_MEMORY_TEST_PPI    *MemoryTestPpi;\r
  EFI_PHYSICAL_ADDRESS        ErrorAddress;\r
  UINTN                       Index;\r
  EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;\r
\r
\r
  DEBUG ((EFI_D_ERROR, "Unix Autoscan PEIM Loaded\n"));\r
\r
  //\r
  // Get the PEI NT Autoscan PPI\r
  //\r
  Status = (**PeiServices).LocatePpi (\r
                            PeiServices,\r
                            &gPeiUnixAutoScanPpiGuid, // GUID\r
                            0,                      // INSTANCE\r
                            &PpiDescriptor,         // EFI_PEI_PPI_DESCRIPTOR\r
                            (VOID **)&PeiUnixService           // PPI\r
                            );\r
  ASSERT_EFI_ERROR (Status);\r
\r
  //\r
  // Get the Memory Test PPI\r
  //\r
  Status = (**PeiServices).LocatePpi (\r
                            PeiServices,\r
                            &gPeiBaseMemoryTestPpiGuid,\r
                            0,\r
                            NULL,\r
                            (VOID **)&MemoryTestPpi\r
                            );\r
  ASSERT_EFI_ERROR (Status);\r
\r
  Index = 0;\r
  do {\r
    Status = PeiUnixService->UnixAutoScan (Index, &MemoryBase, &MemorySize);\r
    if (!EFI_ERROR (Status)) {\r
      Attributes =\r
        (\r
          EFI_RESOURCE_ATTRIBUTE_PRESENT |\r
          EFI_RESOURCE_ATTRIBUTE_INITIALIZED |\r
          EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |\r
          EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |\r
          EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |\r
          EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE\r
        );\r
\r
      if (Index == 0) {\r
        //\r
        // For the first area register it as PEI tested memory\r
        //\r
        Status = MemoryTestPpi->BaseMemoryTest (\r
                                  PeiServices,\r
                                  MemoryTestPpi,\r
                                  MemoryBase,\r
                                  MemorySize,\r
                                  Quick,\r
                                  &ErrorAddress\r
                                  );\r
        ASSERT_EFI_ERROR (Status);\r
\r
        //\r
        // Register the "tested" memory with the PEI Core\r
        //\r
        Status = (**PeiServices).InstallPeiMemory (PeiServices, MemoryBase, MemorySize);\r
        ASSERT_EFI_ERROR (Status);\r
\r
        Attributes |= EFI_RESOURCE_ATTRIBUTE_TESTED;\r
      }\r
      \r
      BuildResourceDescriptorHob (\r
        EFI_RESOURCE_SYSTEM_MEMORY,\r
        Attributes,\r
        MemoryBase,\r
        MemorySize\r
        );\r
    }\r
    Index++;\r
  } while (!EFI_ERROR (Status));\r
\r
  //\r
  // Build the CPU hob with 36-bit addressing and 16-bits of IO space.\r
  //\r
  BuildCpuHob (36, 16);\r
  \r
  return Status;\r
}\r