Files
system76-edk2/ArmPkg/Library/BdsLib/BdsHelper.c
oliviermartin a355a3654f ArmPkg/BdsLib: Upgrade the library to use natively the Device Path
The previous version was using the string representation of the Device Path.
This new version takes as paramater the binary representation of the Device Path

It also tries to detect which kind of device support it refers by using the remaining
part of the Device Path after it has been loaded by gBS->ConnectController()

Lots of bug have been fixed as well in this new version.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11799 6f19259b-4bc3-4df7-8a09-765794883524
2011-06-11 11:56:30 +00:00

286 lines
9.2 KiB
C

/** @file
*
* Copyright (c) 2011, ARM Limited. All rights reserved.
*
* This program and the accompanying materials
* are licensed and made available under the terms and conditions of the BSD License
* which accompanies this distribution. The full text of the license may be found at
* http://opensource.org/licenses/bsd-license.php
*
* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
*
**/
#include "BdsInternal.h"
#include <Library/DxeServicesTableLib.h>
#include <Library/HobLib.h>
#include <Library/TimerLib.h>
#include <Library/PrintLib.h>
#include <Library/SerialPortLib.h>
STATIC CHAR8 *mTokenList[] = {
/*"SEC",*/
"PEI",
"DXE",
"BDS",
NULL
};
EFI_STATUS
ShutdownUefiBootServices (
VOID
)
{
EFI_STATUS Status;
UINTN MemoryMapSize;
EFI_MEMORY_DESCRIPTOR *MemoryMap;
UINTN MapKey;
UINTN DescriptorSize;
UINT32 DescriptorVersion;
UINTN Pages;
MemoryMap = NULL;
MemoryMapSize = 0;
do {
Status = gBS->GetMemoryMap (
&MemoryMapSize,
MemoryMap,
&MapKey,
&DescriptorSize,
&DescriptorVersion
);
if (Status == EFI_BUFFER_TOO_SMALL) {
Pages = EFI_SIZE_TO_PAGES (MemoryMapSize) + 1;
MemoryMap = AllocatePages (Pages);
//
// Get System MemoryMap
//
Status = gBS->GetMemoryMap (
&MemoryMapSize,
MemoryMap,
&MapKey,
&DescriptorSize,
&DescriptorVersion
);
// Don't do anything between the GetMemoryMap() and ExitBootServices()
if (!EFI_ERROR (Status)) {
Status = gBS->ExitBootServices (gImageHandle, MapKey);
if (EFI_ERROR (Status)) {
FreePages (MemoryMap, Pages);
MemoryMap = NULL;
MemoryMapSize = 0;
}
}
}
} while (EFI_ERROR (Status));
return Status;
}
/**
Connect all DXE drivers
@retval EFI_SUCCESS All drivers have been connected
@retval EFI_NOT_FOUND No handles match the search.
@retval EFI_OUT_OF_RESOURCES There is not resource pool memory to store the matching results.
**/
EFI_STATUS
BdsConnectAllDrivers (
VOID
)
{
UINTN HandleCount, Index;
EFI_HANDLE *HandleBuffer;
EFI_STATUS Status;
do {
// Locate all the driver handles
Status = gBS->LocateHandleBuffer (
AllHandles,
NULL,
NULL,
&HandleCount,
&HandleBuffer
);
if (EFI_ERROR (Status)) {
break;
}
// Connect every handles
for (Index = 0; Index < HandleCount; Index++) {
gBS->ConnectController (HandleBuffer[Index], NULL, NULL, TRUE);
}
if (HandleBuffer != NULL) {
FreePool (HandleBuffer);
}
// Check if new handles have been created after the start of the previous handles
Status = gDS->Dispatch ();
} while (!EFI_ERROR(Status));
return EFI_SUCCESS;
}
STATIC
EFI_STATUS
InsertSystemMemoryResources (
LIST_ENTRY *ResourceList,
EFI_HOB_RESOURCE_DESCRIPTOR *ResHob
)
{
BDS_SYSTEM_MEMORY_RESOURCE *NewResource;
LIST_ENTRY *Link;
LIST_ENTRY *NextLink;
LIST_ENTRY AttachedResources;
BDS_SYSTEM_MEMORY_RESOURCE *Resource;
EFI_PHYSICAL_ADDRESS NewResourceEnd;
if (IsListEmpty (ResourceList)) {
NewResource = AllocateZeroPool (sizeof(BDS_SYSTEM_MEMORY_RESOURCE));
NewResource->PhysicalStart = ResHob->PhysicalStart;
NewResource->ResourceLength = ResHob->ResourceLength;
InsertTailList (ResourceList, &NewResource->Link);
return EFI_SUCCESS;
}
InitializeListHead (&AttachedResources);
Link = ResourceList->ForwardLink;
ASSERT (Link != NULL);
while (Link != ResourceList) {
Resource = (BDS_SYSTEM_MEMORY_RESOURCE*)Link;
// Sanity Check. The resources should not overlapped.
ASSERT(!((ResHob->PhysicalStart >= Resource->PhysicalStart) && (ResHob->PhysicalStart < (Resource->PhysicalStart + Resource->ResourceLength))));
ASSERT(!((ResHob->PhysicalStart + ResHob->ResourceLength - 1 >= Resource->PhysicalStart) &&
((ResHob->PhysicalStart + ResHob->ResourceLength - 1) < (Resource->PhysicalStart + Resource->ResourceLength))));
// The new resource is attached after this resource descriptor
if (ResHob->PhysicalStart == Resource->PhysicalStart + Resource->ResourceLength) {
Resource->ResourceLength = Resource->ResourceLength + ResHob->ResourceLength;
NextLink = RemoveEntryList (&Resource->Link);
InsertTailList (&AttachedResources, &Resource->Link);
Link = NextLink;
}
// The new resource is attached before this resource descriptor
else if (ResHob->PhysicalStart + ResHob->ResourceLength == Resource->PhysicalStart) {
Resource->PhysicalStart = ResHob->PhysicalStart;
Resource->ResourceLength = Resource->ResourceLength + ResHob->ResourceLength;
NextLink = RemoveEntryList (&Resource->Link);
InsertTailList (&AttachedResources, &Resource->Link);
Link = NextLink;
} else {
Link = Link->ForwardLink;
}
}
if (!IsListEmpty (&AttachedResources)) {
// See if we can merge the attached resource with other resources
NewResource = (BDS_SYSTEM_MEMORY_RESOURCE*)GetFirstNode (&AttachedResources);
Link = RemoveEntryList (&NewResource->Link);
while (!IsListEmpty (&AttachedResources)) {
// Merge resources
Resource = (BDS_SYSTEM_MEMORY_RESOURCE*)Link;
// Ensure they overlap each other
ASSERT(
((NewResource->PhysicalStart >= Resource->PhysicalStart) && (NewResource->PhysicalStart < (Resource->PhysicalStart + Resource->ResourceLength))) ||
(((NewResource->PhysicalStart + NewResource->ResourceLength) >= Resource->PhysicalStart) && ((NewResource->PhysicalStart + NewResource->ResourceLength) < (Resource->PhysicalStart + Resource->ResourceLength)))
);
NewResourceEnd = MAX (NewResource->PhysicalStart + NewResource->ResourceLength, Resource->PhysicalStart + Resource->ResourceLength);
NewResource->PhysicalStart = MIN (NewResource->PhysicalStart, Resource->PhysicalStart);
NewResource->ResourceLength = NewResourceEnd - NewResource->PhysicalStart;
Link = RemoveEntryList (Link);
}
} else {
// None of the Resource of the list is attached to this ResHob. Create a new entry for it
NewResource = AllocateZeroPool (sizeof(BDS_SYSTEM_MEMORY_RESOURCE));
NewResource->PhysicalStart = ResHob->PhysicalStart;
NewResource->ResourceLength = ResHob->ResourceLength;
}
InsertTailList (ResourceList, &NewResource->Link);
return EFI_SUCCESS;
}
EFI_STATUS
GetSystemMemoryResources (
IN LIST_ENTRY *ResourceList
)
{
EFI_HOB_RESOURCE_DESCRIPTOR *ResHob;
InitializeListHead (ResourceList);
// Find the first System Memory Resource Descriptor
ResHob = (EFI_HOB_RESOURCE_DESCRIPTOR *)GetFirstHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR);
while ((ResHob != NULL) && (ResHob->ResourceType != EFI_RESOURCE_SYSTEM_MEMORY)) {
ResHob = (EFI_HOB_RESOURCE_DESCRIPTOR *)GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR,(VOID *)((UINTN)ResHob + ResHob->Header.HobLength));
}
// Did not find any
if (ResHob == NULL) {
return EFI_NOT_FOUND;
} else {
InsertSystemMemoryResources (ResourceList, ResHob);
}
ResHob = (EFI_HOB_RESOURCE_DESCRIPTOR *)GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR,(VOID *)((UINTN)ResHob + ResHob->Header.HobLength));
while (ResHob != NULL) {
if (ResHob->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) {
InsertSystemMemoryResources (ResourceList, ResHob);
}
ResHob = (EFI_HOB_RESOURCE_DESCRIPTOR *)GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR,(VOID *)((UINTN)ResHob + ResHob->Header.HobLength));
}
return EFI_SUCCESS;
}
VOID
PrintPerformance (
VOID
)
{
UINTN Key;
CONST VOID *Handle;
CONST CHAR8 *Token, *Module;
UINT64 Start, Stop, TimeStamp;
UINT64 Delta, TicksPerSecond, Milliseconds;
UINTN Index;
CHAR8 Buffer[100];
UINTN CharCount;
TicksPerSecond = GetPerformanceCounterProperties (NULL, NULL);
TimeStamp = 0;
Key = 0;
do {
Key = GetPerformanceMeasurement (Key, (CONST VOID **)&Handle, &Token, &Module, &Start, &Stop);
if (Key != 0) {
for (Index = 0; mTokenList[Index] != NULL; Index++) {
if (AsciiStriCmp (mTokenList[Index], Token) == 0) {
Delta = Start - Stop;
TimeStamp += Delta;
Milliseconds = DivU64x64Remainder (MultU64x32 (Delta, 1000), TicksPerSecond, NULL);
CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"%6a %6ld ms\n", Token, Milliseconds);
SerialPortWrite ((UINT8 *) Buffer, CharCount);
break;
}
}
}
} while (Key != 0);
CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Total Time = %ld ms\n\n", DivU64x64Remainder (MultU64x32 (TimeStamp, 1000), TicksPerSecond, NULL));
SerialPortWrite ((UINT8 *) Buffer, CharCount);
}