audk/ShellPkg/Library/UefiShellDebug1CommandsLib/MemMap.c

447 lines
21 KiB
C

/** @file
Main file for Mode shell Debug1 function.
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
(C) Copyright 2013-2015 Hewlett-Packard Development Company, L.P.<BR>
Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
//
// Need full names for Standard-Format Output
//
STATIC CONST CHAR16 NameEfiReservedMemoryType[] = L"Reserved";
STATIC CONST CHAR16 NameEfiLoaderCode[] = L"LoaderCode";
STATIC CONST CHAR16 NameEfiLoaderData[] = L"LoaderData";
STATIC CONST CHAR16 NameEfiBootServicesCode[] = L"BootServiceCode";
STATIC CONST CHAR16 NameEfiBootServicesData[] = L"BootServiceData";
STATIC CONST CHAR16 NameEfiRuntimeServicesCode[] = L"RuntimeCode";
STATIC CONST CHAR16 NameEfiRuntimeServicesData[] = L"RuntimeData";
STATIC CONST CHAR16 NameEfiConventionalMemory[] = L"Available";
STATIC CONST CHAR16 NameEfiPersistentMemory[] = L"Persistent";
STATIC CONST CHAR16 NameEfiUnusableMemory[] = L"UnusableMemory";
STATIC CONST CHAR16 NameEfiACPIReclaimMemory[] = L"ACPIReclaimMemory";
STATIC CONST CHAR16 NameEfiACPIMemoryNVS[] = L"ACPIMemoryNVS";
STATIC CONST CHAR16 NameEfiMemoryMappedIO[] = L"MemoryMappedIO";
STATIC CONST CHAR16 NameEfiMemoryMappedIOPortSpace[] = L"MemoryMappedIOPortSpace";
STATIC CONST CHAR16 NameEfiPalCode[] = L"PalCode";
//
// Need short names for some memory types
//
STATIC CONST CHAR16 NameEfiBootServicesCodeShort[] = L"BS_Code";
STATIC CONST CHAR16 NameEfiBootServicesDataShort[] = L"BS_Data";
STATIC CONST CHAR16 NameEfiRuntimeServicesCodeShort[] = L"RT_Code";
STATIC CONST CHAR16 NameEfiRuntimeServicesDataShort[] = L"RT_Data";
STATIC CONST CHAR16 NameEfiUnusableMemoryShort[] = L"Unusable";
STATIC CONST CHAR16 NameEfiACPIReclaimMemoryShort[] = L"ACPI_Recl";
STATIC CONST CHAR16 NameEfiACPIMemoryNVSShort[] = L"ACPI_NVS";
STATIC CONST CHAR16 NameEfiMemoryMappedIOShort[] = L"MMIO";
STATIC CONST CHAR16 NameEfiMemoryMappedIOPortSpaceShort[] = L"MMIO_Port";
#include "UefiShellDebug1CommandsLib.h"
typedef struct {
UINT32 Type;
UINT64 NumberOfPages;
LIST_ENTRY Link;
} MEMORY_LENGTH_ENTRY;
/**
Add the length of the specified type to List.
@param List A list to hold all pairs of <Type, NumberOfPages>.
@param Type Memory type.
@param NumberOfPages Number of pages.
**/
VOID
AddMemoryLength (
LIST_ENTRY *List,
UINT32 Type,
UINT64 NumberOfPages
)
{
MEMORY_LENGTH_ENTRY *Entry;
MEMORY_LENGTH_ENTRY *NewEntry;
LIST_ENTRY *Link;
Entry = NULL;
for (Link = GetFirstNode (List); !IsNull (List, Link); Link = GetNextNode (List, Link)) {
Entry = BASE_CR (Link, MEMORY_LENGTH_ENTRY, Link);
if (Entry->Type >= Type) {
break;
}
}
if ((Entry != NULL) && (Entry->Type == Type)) {
//
// The Entry is the one we look for.
//
NewEntry = Entry;
} else {
//
// The search operation breaks due to:
// 1. Type of every entry < Type --> Insert to tail
// 2. Type of an entry > Type --> Insert to previous of this entry
//
NewEntry = AllocatePool (sizeof (*NewEntry));
if (NewEntry == NULL) {
return;
}
NewEntry->Type = Type;
NewEntry->NumberOfPages = 0;
InsertTailList (Link, &NewEntry->Link);
}
NewEntry->NumberOfPages += NumberOfPages;
}
/**
Function for 'memmap' command.
@param[in] ImageHandle Handle to the Image (NULL if Internal).
@param[in] SystemTable Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunMemMap (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
LIST_ENTRY *Package;
CHAR16 *ProblemParam;
SHELL_STATUS ShellStatus;
UINTN Size;
EFI_MEMORY_DESCRIPTOR *Descriptors;
UINTN MapKey;
UINTN ItemSize;
UINT32 Version;
EFI_MEMORY_DESCRIPTOR *Walker;
UINT64 ReservedPages;
UINT64 LoadCodePages;
UINT64 LoadDataPages;
UINT64 BSCodePages;
UINT64 BSDataPages;
UINT64 RTDataPages;
UINT64 RTCodePages;
UINT64 AvailPages;
UINT64 TotalPages;
UINT64 ReservedPagesSize;
UINT64 LoadCodePagesSize;
UINT64 LoadDataPagesSize;
UINT64 BSCodePagesSize;
UINT64 BSDataPagesSize;
UINT64 RTDataPagesSize;
UINT64 RTCodePagesSize;
UINT64 AvailPagesSize;
UINT64 TotalPagesSize;
UINT64 AcpiReclaimPages;
UINT64 AcpiNvsPages;
UINT64 MmioSpacePages;
UINT64 AcpiReclaimPagesSize;
UINT64 AcpiNvsPagesSize;
UINT64 MmioSpacePagesSize;
UINT64 MmioPortPages;
UINT64 MmioPortPagesSize;
UINT64 UnusableMemoryPages;
UINT64 UnusableMemoryPagesSize;
UINT64 PalCodePages;
UINT64 PalCodePagesSize;
UINT64 PersistentPages;
UINT64 PersistentPagesSize;
BOOLEAN Sfo;
LIST_ENTRY MemoryList;
MEMORY_LENGTH_ENTRY *Entry;
LIST_ENTRY *Link;
AcpiReclaimPages = 0;
AcpiNvsPages = 0;
MmioSpacePages = 0;
TotalPages = 0;
ReservedPages = 0;
LoadCodePages = 0;
LoadDataPages = 0;
BSCodePages = 0;
BSDataPages = 0;
RTDataPages = 0;
RTCodePages = 0;
AvailPages = 0;
MmioPortPages = 0;
UnusableMemoryPages = 0;
PalCodePages = 0;
PersistentPages = 0;
Size = 0;
Descriptors = NULL;
ShellStatus = SHELL_SUCCESS;
Status = EFI_SUCCESS;
InitializeListHead (&MemoryList);
//
// initialize the shell lib (we must be in non-auto-init...)
//
Status = ShellInitialize ();
ASSERT_EFI_ERROR (Status);
Status = CommandInit ();
ASSERT_EFI_ERROR (Status);
//
// parse the command line
//
Status = ShellCommandLineParse (SfoParamList, &Package, &ProblemParam, TRUE);
if (EFI_ERROR (Status)) {
if ((Status == EFI_VOLUME_CORRUPTED) && (ProblemParam != NULL)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, L"memmap", ProblemParam);
FreePool (ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ASSERT (FALSE);
}
} else {
if (ShellCommandLineGetCount (Package) > 1) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle, L"memmap");
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
Status = gBS->GetMemoryMap (&Size, Descriptors, &MapKey, &ItemSize, &Version);
if (Status == EFI_BUFFER_TOO_SMALL) {
Size += SIZE_1KB;
Descriptors = AllocateZeroPool (Size);
Status = gBS->GetMemoryMap (&Size, Descriptors, &MapKey, &ItemSize, &Version);
}
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_MEMMAP_GET_FAILED), gShellDebug1HiiHandle, L"memmap");
ShellStatus = SHELL_ACCESS_DENIED;
} else {
ASSERT (Version == EFI_MEMORY_DESCRIPTOR_VERSION);
Sfo = ShellCommandLineGetFlag (Package, L"-sfo");
if (!Sfo) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_MEMMAP_LIST_HEAD), gShellDebug1HiiHandle);
} else {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_SFO_HEADER), gShellDebug1HiiHandle, L"memmap");
}
for ( Walker = Descriptors
; (Walker < (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)Descriptors + Size)) && (Walker != NULL)
; Walker = (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)Walker + ItemSize)
)
{
switch (Walker->Type) {
case EfiReservedMemoryType:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, NameEfiReservedMemoryType, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
ReservedPages += Walker->NumberOfPages;
break;
case EfiLoaderCode:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, NameEfiLoaderCode, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
LoadCodePages += Walker->NumberOfPages;
TotalPages += Walker->NumberOfPages;
break;
case EfiLoaderData:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, NameEfiLoaderData, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
LoadDataPages += Walker->NumberOfPages;
TotalPages += Walker->NumberOfPages;
break;
case EfiBootServicesCode:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, !Sfo ? NameEfiBootServicesCodeShort : NameEfiBootServicesCode, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
BSCodePages += Walker->NumberOfPages;
TotalPages += Walker->NumberOfPages;
break;
case EfiBootServicesData:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, !Sfo ? NameEfiBootServicesDataShort : NameEfiBootServicesData, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
BSDataPages += Walker->NumberOfPages;
TotalPages += Walker->NumberOfPages;
break;
case EfiRuntimeServicesCode:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, !Sfo ? NameEfiRuntimeServicesCodeShort : NameEfiRuntimeServicesCode, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
RTCodePages += Walker->NumberOfPages;
TotalPages += Walker->NumberOfPages;
break;
case EfiRuntimeServicesData:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, !Sfo ? NameEfiRuntimeServicesDataShort : NameEfiRuntimeServicesData, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
RTDataPages += Walker->NumberOfPages;
TotalPages += Walker->NumberOfPages;
break;
case EfiConventionalMemory:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, NameEfiConventionalMemory, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
AvailPages += Walker->NumberOfPages;
TotalPages += Walker->NumberOfPages;
break;
case EfiPersistentMemory:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, NameEfiPersistentMemory, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
PersistentPages += Walker->NumberOfPages;
TotalPages += Walker->NumberOfPages;
break;
case EfiUnusableMemory:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, !Sfo ? NameEfiUnusableMemoryShort : NameEfiUnusableMemory, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
UnusableMemoryPages += Walker->NumberOfPages;
break;
case EfiACPIReclaimMemory:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, !Sfo ? NameEfiACPIReclaimMemoryShort : NameEfiACPIReclaimMemory, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
TotalPages += Walker->NumberOfPages;
AcpiReclaimPages += Walker->NumberOfPages;
break;
case EfiACPIMemoryNVS:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, !Sfo ? NameEfiACPIMemoryNVSShort : NameEfiACPIMemoryNVS, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
TotalPages += Walker->NumberOfPages;
AcpiNvsPages += Walker->NumberOfPages;
break;
case EfiMemoryMappedIO:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, !Sfo ? NameEfiMemoryMappedIOShort : NameEfiMemoryMappedIO, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
MmioSpacePages += Walker->NumberOfPages;
break;
case EfiMemoryMappedIOPortSpace:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, !Sfo ? NameEfiMemoryMappedIOPortSpaceShort : NameEfiMemoryMappedIOPortSpace, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
MmioPortPages += Walker->NumberOfPages;
break;
case EfiPalCode:
ShellPrintHiiEx (-1, -1, NULL, (EFI_STRING_ID)(!Sfo ? STRING_TOKEN (STR_MEMMAP_LIST_ITEM) : STRING_TOKEN (STR_MEMMAP_LIST_ITEM_SFO)), gShellDebug1HiiHandle, NameEfiPalCode, Walker->PhysicalStart, Walker->PhysicalStart+MultU64x64 (SIZE_4KB, Walker->NumberOfPages)-1, Walker->NumberOfPages, Walker->Attribute);
TotalPages += Walker->NumberOfPages;
PalCodePages += Walker->NumberOfPages;
break;
default:
//
// Shell Spec defines the SFO format.
// Do not print the OEM/OS memory usage in the SFO format, to avoid conflict with Shell Spec.
//
if (!Sfo) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_MEMMAP_LIST_ITEM_OTHER), gShellDebug1HiiHandle, Walker->Type, Walker->PhysicalStart, Walker->PhysicalStart + MultU64x64 (SIZE_4KB, Walker->NumberOfPages) - 1, Walker->NumberOfPages, Walker->Attribute);
}
TotalPages += Walker->NumberOfPages;
AddMemoryLength (&MemoryList, Walker->Type, Walker->NumberOfPages);
break;
}
}
//
// print the summary
//
ReservedPagesSize = MultU64x64 (SIZE_4KB, ReservedPages);
LoadCodePagesSize = MultU64x64 (SIZE_4KB, LoadCodePages);
LoadDataPagesSize = MultU64x64 (SIZE_4KB, LoadDataPages);
BSCodePagesSize = MultU64x64 (SIZE_4KB, BSCodePages);
BSDataPagesSize = MultU64x64 (SIZE_4KB, BSDataPages);
RTDataPagesSize = MultU64x64 (SIZE_4KB, RTDataPages);
RTCodePagesSize = MultU64x64 (SIZE_4KB, RTCodePages);
AvailPagesSize = MultU64x64 (SIZE_4KB, AvailPages);
TotalPagesSize = MultU64x64 (SIZE_4KB, TotalPages);
AcpiReclaimPagesSize = MultU64x64 (SIZE_4KB, AcpiReclaimPages);
AcpiNvsPagesSize = MultU64x64 (SIZE_4KB, AcpiNvsPages);
MmioSpacePagesSize = MultU64x64 (SIZE_4KB, MmioSpacePages);
MmioPortPagesSize = MultU64x64 (SIZE_4KB, MmioPortPages);
PalCodePagesSize = MultU64x64 (SIZE_4KB, PalCodePages);
PersistentPagesSize = MultU64x64 (SIZE_4KB, PersistentPages);
UnusableMemoryPagesSize = MultU64x64 (SIZE_4KB, UnusableMemoryPages);
if (!Sfo) {
ShellPrintHiiEx (
-1,
-1,
NULL,
STRING_TOKEN (STR_MEMMAP_LIST_SUMM),
gShellDebug1HiiHandle,
ReservedPages,
ReservedPagesSize,
LoadCodePages,
LoadCodePagesSize,
LoadDataPages,
LoadDataPagesSize,
BSCodePages,
BSCodePagesSize,
BSDataPages,
BSDataPagesSize,
RTCodePages,
RTCodePagesSize,
RTDataPages,
RTDataPagesSize,
AcpiReclaimPages,
AcpiReclaimPagesSize,
AcpiNvsPages,
AcpiNvsPagesSize,
MmioSpacePages,
MmioSpacePagesSize,
MmioPortPages,
MmioPortPagesSize,
PalCodePages,
PalCodePagesSize,
AvailPages,
AvailPagesSize,
PersistentPages,
PersistentPagesSize
);
//
// Print out the total memory usage for OEM/OS types in the order of type.
//
for (Link = GetFirstNode (&MemoryList); !IsNull (&MemoryList, Link); Link = GetNextNode (&MemoryList, Link)) {
Entry = BASE_CR (Link, MEMORY_LENGTH_ENTRY, Link);
ShellPrintHiiEx (
-1,
-1,
NULL,
STRING_TOKEN (STR_MEMMAP_LIST_SUMM_OTHER),
gShellDebug1HiiHandle,
Entry->Type,
Entry->NumberOfPages,
MultU64x64 (SIZE_4KB, Entry->NumberOfPages)
);
}
ShellPrintHiiEx (
-1,
-1,
NULL,
STRING_TOKEN (STR_MEMMAP_LIST_SUMM2),
gShellDebug1HiiHandle,
DivU64x32 (MultU64x64 (SIZE_4KB, TotalPages), SIZE_1MB),
TotalPagesSize
);
} else {
ShellPrintHiiEx (
-1,
-1,
NULL,
STRING_TOKEN (STR_MEMMAP_LIST_SUMM_SFO),
gShellDebug1HiiHandle,
TotalPagesSize,
ReservedPagesSize,
BSCodePagesSize,
BSDataPagesSize,
RTCodePagesSize,
RTDataPagesSize,
LoadCodePagesSize,
LoadDataPagesSize,
AvailPagesSize,
MmioSpacePagesSize,
MmioPortPagesSize,
UnusableMemoryPagesSize,
AcpiReclaimPagesSize,
AcpiNvsPagesSize,
PalCodePagesSize,
PersistentPagesSize
);
}
}
}
ShellCommandLineFreeVarList (Package);
}
if (Descriptors != NULL) {
FreePool (Descriptors);
}
//
// Free the memory list.
//
for (Link = GetFirstNode (&MemoryList); !IsNull (&MemoryList, Link); ) {
Link = RemoveEntryList (Link);
}
return (ShellStatus);
}