diff options
Diffstat (limited to 'DuetPkg/EfiLdr/Support.c')
| -rw-r--r-- | DuetPkg/EfiLdr/Support.c | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/DuetPkg/EfiLdr/Support.c b/DuetPkg/EfiLdr/Support.c deleted file mode 100644 index a0c9046935..0000000000 --- a/DuetPkg/EfiLdr/Support.c +++ /dev/null @@ -1,237 +0,0 @@ -/*++
-
-Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
-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.
-
-Module Name:
- Support.c
-
-Abstract:
-
-Revision History:
-
---*/
-#include "EfiLdr.h"
-
-EFI_STATUS
-EfiAddMemoryDescriptor(
- UINTN *NoDesc,
- EFI_MEMORY_DESCRIPTOR *Desc,
- EFI_MEMORY_TYPE Type,
- EFI_PHYSICAL_ADDRESS BaseAddress,
- UINT64 NoPages,
- UINT64 Attribute
- )
-{
- UINTN NumberOfDesc;
- UINT64 Temp;
- UINTN Index;
-
- if (NoPages == 0) {
- return EFI_SUCCESS;
- }
-
- //
- // See if the new memory descriptor needs to be carved out of an existing memory descriptor
- //
-
- NumberOfDesc = *NoDesc;
- for (Index = 0; Index < NumberOfDesc; Index++) {
-
- if (Desc[Index].Type == EfiConventionalMemory) {
-
- Temp = DivU64x32 ((BaseAddress - Desc[Index].PhysicalStart), EFI_PAGE_SIZE) + NoPages;
-
- if ((Desc[Index].PhysicalStart < BaseAddress) && (Desc[Index].NumberOfPages >= Temp)) {
- if (Desc[Index].NumberOfPages > Temp) {
- Desc[*NoDesc].Type = EfiConventionalMemory;
- Desc[*NoDesc].PhysicalStart = BaseAddress + MultU64x32 (NoPages, EFI_PAGE_SIZE);
- Desc[*NoDesc].NumberOfPages = Desc[Index].NumberOfPages - Temp;
- Desc[*NoDesc].VirtualStart = 0;
- Desc[*NoDesc].Attribute = Desc[Index].Attribute;
- *NoDesc = *NoDesc + 1;
- }
- Desc[Index].NumberOfPages = Temp - NoPages;
- }
-
- if ((Desc[Index].PhysicalStart == BaseAddress) && (Desc[Index].NumberOfPages == NoPages)) {
- Desc[Index].Type = Type;
- Desc[Index].Attribute = Attribute;
- return EFI_SUCCESS;
- }
-
- if ((Desc[Index].PhysicalStart == BaseAddress) && (Desc[Index].NumberOfPages > NoPages)) {
- Desc[Index].NumberOfPages -= NoPages;
- Desc[Index].PhysicalStart += MultU64x32 (NoPages, EFI_PAGE_SIZE);
- }
- }
- }
-
- //
- // Add the new memory descriptor
- //
-
- Desc[*NoDesc].Type = Type;
- Desc[*NoDesc].PhysicalStart = BaseAddress;
- Desc[*NoDesc].NumberOfPages = NoPages;
- Desc[*NoDesc].VirtualStart = 0;
- Desc[*NoDesc].Attribute = Attribute;
- *NoDesc = *NoDesc + 1;
-
- return EFI_SUCCESS;
-}
-
-UINTN
-FindSpace (
- UINTN NoPages,
- IN UINTN *NumberOfMemoryMapEntries,
- IN EFI_MEMORY_DESCRIPTOR *EfiMemoryDescriptor,
- EFI_MEMORY_TYPE Type,
- UINT64 Attribute
- )
-{
- EFI_PHYSICAL_ADDRESS MaxPhysicalStart;
- UINT64 MaxNoPages;
- UINTN Index;
- EFI_MEMORY_DESCRIPTOR *CurrentMemoryDescriptor;
-
- MaxPhysicalStart = 0;
- MaxNoPages = 0;
- CurrentMemoryDescriptor = NULL;
- for (Index = 0; Index < *NumberOfMemoryMapEntries; Index++) {
- if (EfiMemoryDescriptor[Index].PhysicalStart + LShiftU64(EfiMemoryDescriptor[Index].NumberOfPages, EFI_PAGE_SHIFT) <= 0x100000) {
- continue;
- }
- if ((EfiMemoryDescriptor[Index].Type == EfiConventionalMemory) &&
- (EfiMemoryDescriptor[Index].NumberOfPages >= NoPages)) {
- if (EfiMemoryDescriptor[Index].PhysicalStart > MaxPhysicalStart) {
- if (EfiMemoryDescriptor[Index].PhysicalStart + LShiftU64(EfiMemoryDescriptor[Index].NumberOfPages, EFI_PAGE_SHIFT) <= 0x100000000ULL) {
- MaxPhysicalStart = EfiMemoryDescriptor[Index].PhysicalStart;
- MaxNoPages = EfiMemoryDescriptor[Index].NumberOfPages;
- CurrentMemoryDescriptor = &EfiMemoryDescriptor[Index];
- }
- }
- }
- if ((EfiMemoryDescriptor[Index].Type == EfiReservedMemoryType) ||
- (EfiMemoryDescriptor[Index].Type >= EfiACPIReclaimMemory) ) {
- continue;
- }
- if ((EfiMemoryDescriptor[Index].Type == EfiRuntimeServicesCode) ||
- (EfiMemoryDescriptor[Index].Type == EfiRuntimeServicesData)) {
- break;
- }
- }
-
- if (MaxPhysicalStart == 0) {
- return 0;
- }
-
- if (MaxNoPages != NoPages) {
- CurrentMemoryDescriptor->NumberOfPages = MaxNoPages - NoPages;
- EfiMemoryDescriptor[*NumberOfMemoryMapEntries].Type = Type;
- EfiMemoryDescriptor[*NumberOfMemoryMapEntries].PhysicalStart = MaxPhysicalStart + LShiftU64(MaxNoPages - NoPages, EFI_PAGE_SHIFT);
- EfiMemoryDescriptor[*NumberOfMemoryMapEntries].NumberOfPages = NoPages;
- EfiMemoryDescriptor[*NumberOfMemoryMapEntries].VirtualStart = 0;
- EfiMemoryDescriptor[*NumberOfMemoryMapEntries].Attribute = Attribute;
- *NumberOfMemoryMapEntries = *NumberOfMemoryMapEntries + 1;
- } else {
- CurrentMemoryDescriptor->Type = Type;
- CurrentMemoryDescriptor->Attribute = Attribute;
- }
-
- return (UINTN)(MaxPhysicalStart + LShiftU64(MaxNoPages - NoPages, EFI_PAGE_SHIFT));
-}
-
-VOID
-GenMemoryMap (
- UINTN *NumberOfMemoryMapEntries,
- EFI_MEMORY_DESCRIPTOR *EfiMemoryDescriptor,
- BIOS_MEMORY_MAP *BiosMemoryMap
- )
-{
- UINT64 BaseAddress;
- UINT64 Length;
- EFI_MEMORY_TYPE Type;
- UINTN Index;
- UINTN Attr;
- UINT64 Ceiling;
-
- Ceiling = 0xFFFFFFFF;
- for (Index = 0; Index < BiosMemoryMap->MemoryMapSize / sizeof(BIOS_MEMORY_MAP_ENTRY); Index++) {
-
- switch (BiosMemoryMap->MemoryMapEntry[Index].Type) {
- case (INT15_E820_AddressRangeMemory):
- Type = EfiConventionalMemory;
- Attr = EFI_MEMORY_WB;
- break;
- case (INT15_E820_AddressRangeReserved):
- Type = EfiReservedMemoryType;
- Attr = EFI_MEMORY_UC;
- break;
- case (INT15_E820_AddressRangeACPI):
- Type = EfiACPIReclaimMemory;
- Attr = EFI_MEMORY_WB;
- break;
- case (INT15_E820_AddressRangeNVS):
- Type = EfiACPIMemoryNVS;
- Attr = EFI_MEMORY_UC;
- break;
- default:
- // We should not get here, according to ACPI 2.0 Spec.
- // BIOS behaviour of the Int15h, E820h
- Type = EfiReservedMemoryType;
- Attr = EFI_MEMORY_UC;
- break;
- }
- if (Type == EfiConventionalMemory) {
- BaseAddress = BiosMemoryMap->MemoryMapEntry[Index].BaseAddress;
- Length = BiosMemoryMap->MemoryMapEntry[Index].Length;
- if (BaseAddress & EFI_PAGE_MASK) {
- Length = Length + (BaseAddress & EFI_PAGE_MASK) - EFI_PAGE_SIZE;
- BaseAddress = LShiftU64 (RShiftU64 (BaseAddress, EFI_PAGE_SHIFT) + 1, EFI_PAGE_SHIFT);
- }
- } else {
- BaseAddress = BiosMemoryMap->MemoryMapEntry[Index].BaseAddress;
- Length = BiosMemoryMap->MemoryMapEntry[Index].Length + (BaseAddress & EFI_PAGE_MASK);
- BaseAddress = LShiftU64 (RShiftU64 (BaseAddress, EFI_PAGE_SHIFT), EFI_PAGE_SHIFT);
- if (Length & EFI_PAGE_MASK) {
- Length = LShiftU64 (RShiftU64 (Length, EFI_PAGE_SHIFT) + 1, EFI_PAGE_SHIFT);
- }
- //
- // Update Memory Ceiling
- //
- if ((BaseAddress >= 0x100000) && (BaseAddress < 0x100000000ULL)) {
- if (Ceiling > BaseAddress) {
- Ceiling = BaseAddress;
- }
- }
- }
- EfiAddMemoryDescriptor (
- NumberOfMemoryMapEntries,
- EfiMemoryDescriptor,
- Type,
- (EFI_PHYSICAL_ADDRESS)BaseAddress,
- RShiftU64 (Length, EFI_PAGE_SHIFT),
- Attr
- );
- }
-
- //
- // Update MemoryMap according to Ceiling
- //
- for (Index = 0; Index < *NumberOfMemoryMapEntries; Index++) {
- if ((EfiMemoryDescriptor[Index].Type == EfiConventionalMemory) &&
- (EfiMemoryDescriptor[Index].PhysicalStart > 0x100000) &&
- (EfiMemoryDescriptor[Index].PhysicalStart < 0x100000000ULL)) {
- if (EfiMemoryDescriptor[Index].PhysicalStart >= Ceiling) {
- EfiMemoryDescriptor[Index].Type = EfiReservedMemoryType;
- }
- }
- }
-}
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